TECHNOLOGY CENTER FEASIBILITY STUDY · CARROLL COUNTY CAREER & TECHNOLOGY CENTER FEASIBILITY STUDY...
Transcript of TECHNOLOGY CENTER FEASIBILITY STUDY · CARROLL COUNTY CAREER & TECHNOLOGY CENTER FEASIBILITY STUDY...
CARROLL COUNTY CAREER & TECHNOLOGY CENTER
FEASIBILITY STUDY
Carroll County Public Schools | January 10, 2017
Table of Contents
Carroll County Career & Technology Center ǀ 1 January 10, 2017
01 Study Team 3
02 Executive Summary
Introduction 4
Purpose 5
Findings 6
Proposed Design Options 8
Alternative Sites 12
03 History 13
04 Educational Goals
Educational Program 14
Program Summary Table 17
Program Summary Table‐ Wait List 24
05 Existing Conditions
Site 25
Architectural 28
Structural 32
Food Service / Kitchen 34
Mechanical 39
Electrical 44
Existing Site Plan 46
Existing Floor Plans 47
06 Code Analysis 49
07 Proposed Design Options 51
Option A: Modernization 53
Option B: Modernization/ Partial Replacement 60
Option C: Replacement on Existing Campus 68
Option D: Replacement on Undeveloped Site 75
Table of Contents
Carroll County Career & Technology Center ǀ 2 January 10, 2017
Mechanical Recommendations 77
Plumbing Recommendations 82
Electrical Recommendations 84
08 Appendix
Appendix A – Cost Estimate Options‐ A‐D 88
Cost Estimate‐ Relocated Programs 89
Appendix B – Life Cycle Costs 90
Carroll County Career & Technology Center
STUDY TEAM
Study Team ǀ 01
Carroll County Career & Technology Center ǀ 3 January 10, 2017
Carroll County Career and Technology Center
William Eckles Principal
Westminster High School
Jeffrey Hopkins Principal
Carroll County Public Schools
Mike Andrews Supervisor of Facilities Maintenance and Operations
William Caine Facilities Planner
Kim Dolch Director of High Schools
James Marks Supervisor of Construction
Angie McCauslin Supervisor of CTE
Ted McNett Assistant Supervisor of CTE
Margaret Pfaff Director of Curriculum and Instruction
Ray Prokop Director of Facilities
Maryland State Department of Education
Jillian Storms School Facilities Architect
Feasibility Study Design Team
Architect Hord Coplan Macht, Inc.
Civil Engineer MK Consulting Engineers , LLC
Structural SK&A Structural Engineers, PLLC
Mechanical & Electrical Alban Engineering, Inc.
Food Service Nyikos Associates, Inc.
Carroll County Career & Technology Center
EXECUTIVE SUMMARY
Executive Summary ǀ 02
Carroll County Career & Technology Center ǀ 4 January 10, 2017
Introduction
Carroll County Career and Technology Center
(CCCTC) is located on a 68.56 acre parcel shared
with Westminster High School. The property is
bounded by single family residential homes and
Hook Road to the north, New Washington Road
(Rte. 97) to the east, and a Carroll County Fire
Training facility to the south. The west
boundary of the property lies along Washington
Road (Rte. 32). The building was constructed in
1969 with an addition added along the south
side in 1986. Five relocatable classrooms are
located adjacent to the building on the west
side and are utilized for Health and Information
Technology programs. The state rated capacity
of the school is 380, however the students are
enrolled and accounted for at their home high
schools. The current enrollment for semester 1
is 769 students and 815 students for semester
2. There is a wait list of approximately 300
students.
The site is accessed via two points along
Washington Road (Rte. 32) and a third along
Hook Road. Bus traffic typically enters from the
Hook Road or northern Washington Road
access point onto a campus road (Washington
Lane) leading to a continuous campus drive
aisle loop encircling the campus. The drive aisle
loop serves both Westminster High School and
CCCTC. The south access point along
Washington Road serves student, parent, and
staff traffic for CCCTC in addition to serving
Westminster High School students and buses.
Upon entering the common drive aisle access
point, CCCTC traffic is directed to the right
toward a common parking lot for students,
staff, and visitors. CCCTC’s receiving area for
deliveries is also located along this portion of
the drive aisle northwest of the building. The
CCCTC parking lot is shared with a community
media center on the southwest corner of the
campus. The drive aisle loop continues along
the west between the building and parking lot,
acting as both campus loop road and bus
queuing area. Additional parking lots for
Westminster High School are located north of
CCCTC. Grassed multi‐purpose play fields with
overlapping softball and baseball diamonds,
practice field for football, field hockey field, and
football/soccer stadium with track are located
to the northeast of CCCTC. Fields are utilized by
Westminster High School.
The existing school suffers from insufficient
space to accommodate the proposed
educational program and outdated systems.
Additionally, there is a wait list of students
hoping to enroll that cannot be accommodated
without additional space to expand the
programs. The facility is aging and suffers from
a combination of mechanical, electrical,
plumbing, accessibility, and educational
deficiencies.
With broad and accelerated change that
continues to influence learning and instruction,
the current Carroll Career and Technology
Center cannot keep pace with the facility
demands of today’s educational imperatives.
In short, the school no longer reflects a
standard for career and technology school
facilities that is consistent with the Board of
Education’s vision for Carroll County and
requires modernization or replacement.
Executive Summary ǀ 02
Carroll County Career & Technology Center ǀ 5 January 10, 2017
Purpose The purpose of this feasibility study, commissioned by Carroll County Public (CCPS), was to direct the
study team to assess the condition of the existing building and site, offer recommendations for
improvements or replacement of current facilities, and present four options for consideration by the
Board of Education (BOE).
A program inventory was developed by the Study Team in conjunction with Hord Coplan Macht, using
the school’s current inventory as a baseline and proposing space improvements based on enrollment
needs including wait list, state education guidelines, and programs from comparable career and
technology facilities in Maryland. Each design option presented in this document reflects an approach
to the proposed educational program: Option A addresses the wait list enrollment space needs and
systemic upgrades only to provide a more modestly scaled intervention option while Options B, C, and D
address the educational program in full, including wait list.
The feasibility study team worked closely with the study team to determine the most reasonable
approach to each option. This study includes a photographic and narrative assessment of the existing
facility, including a preliminary evaluation of compliance with current building and life safety codes.
Descriptive summaries and illustrations are provided for each option, followed by appendices that
include proposed costs and life cycle cost data.
Executive Summary ǀ 02
Carroll County Career & Technology Center ǀ 6 January 10, 2017
Findings
The existing school has insufficient space to accommodate the proposed educational program, outdated
systems, and inefficient adjacencies. It is an aging facility that suffers from a combination of mechanical,
electrical, plumbing, and accessibility deficiencies and needs to be modernized. These deficiencies
include:
Site:
Access point/route that mixes cars and buses rather than separating them.
Parking lots need resurfacing.
Building:
Administration suite lacks storage for general use and records.
Guidance suite is comingled with main administration
Health suite does not meet COMAR requirements – all health services are provided from a single office that is accessed through the main office.
Maintenance personnel share space with the building maintenance program for students.
Engineering program is lacking in quantity of classroom and storage spaces.
Manufacturing Lab is undersized and program lacks adequate storage space.
Drafting program lacks dedicated storage space.
Welding program lab and classroom are undersized and there is no locker space for female students.
Finishing area of welding is housed in a mezzanine, making it inaccessible to students/staff who cannot use stairs.
Textiles/Fashion design space is undersized and configured in an inefficient shape, making space deficiencies worse.
Cosmetology program lacks the appropriate quantity of classroom spaces and its support spaces are undersized.
Culinary Arts program is undersized in all programmed spaces and locker rooms are located in storage closets.
Special education space is grossly oversized while math, English, and computer spaces are undersize.
Food service lacks a dedicated storage room.
Academy of Health Professionals program is deficient in size, number of lab spaces, number of classroom spaces, and required support spaces. A portion of this program is located in a relocatable classroom space.
Biomedical program labs are undersized and the program lacks dedicated storage space.
Executive Summary ǀ 02
Carroll County Career & Technology Center ǀ 7 January 10, 2017
Criminal Justice program lab is undersized, located in a relocatable classroom, and lacks the required amount of classroom spaces.
Construction programs (HVAC, Carpentry, Masonry, Electrical, and Building Maintenance) have undersized lab and classroom spaces and do not have locker facilities for female students. Storage space is highly concentrated in mezzanines, making it inaccessible for students/staff who cannot use stairs.
Building maintenance program has no dedicated space. They share the building services staff space (see item above).
Video production lacks dedicated support spaces, possesses an undersized lab space, and is currently located in a relocatable classroom.
Print production lacks a photo lab. Program currently uses a mechanical room for photo development.
Computer Technology and CISCO/Networking programs have undersized labs, too few labs spaces, and no dedicated storage. CISCO is currently located in a relocatable classroom.
Automotive Technology is undersized by nearly one half the programmed size.
Collision Repair program is undersized and lacks locker space.
Heavy Equipment and Truck Technology (Diesel) is undersized by approximately 33%.
Staff resource rooms do not exist for the career clusters. Staff currently share space with the special education area for this use.
Retail spaces (cosmetology, textiles/fashion, and culinary) do not have dedicated public access points. Patrons must walk through the building to access these spaces.
Executive Summary ǀ 02
Carroll County Career & Technology Center ǀ 8 January 10, 2017
Proposed Design Options
The development of the following design options included an assessment of the Carroll County Career
and Technology Center building and concluded that the building has educational and functional
limitations. It does, however, provide opportunity to create multiple design options that address the
requirements described in the proposed space summary developed by the Study Team. The proposed
design options went through a series of design review meetings with members of the Study Team.
OPTION A ‐ PARTIAL MODERNIZATION
OPTION B ‐ MODERNIZATION
Option A ‐ Partial Modernization
Partial Modernization (Option A) includes
constructing a 21,000 sf addition that contains
spaces for the wait list programs indicated in the
program inventory space summary. Proposed work
also includes complete renovation of the existing
building to bring the entire building into
conformance with current building and life safety
codes. Enlargement of program space within the
existing building is not provided as part of this partial
modernization, and life safety renovations may
reduce the existing instruction space to
accommodate the modifications. Relocatable
classrooms will remain during and after completion
of the partial modernization. Maintaining building
occupancy and operation will require a multi‐phase
construction process.
Option B ‐ Modernization
Modernization (Option B) includes renovation of the
existing building to bring the entire building into
conformance with current building and life safety
codes and reconfiguration of the spaces to better
accommodate the proposed program. It will also
include 91,185 sf in additions to be in compliance
with the proposed program. Existing detached
building for auto collision repair program will be
demolished. Maintaining building occupancy and
operation will require a multi‐phase construction
process.
Executive Summary ǀ 02
Carroll County Career & Technology Center ǀ 9 January 10, 2017
OPTION C ‐ REPLACEMENT
OPTION D – REPLACEMENT OFFSITE
Option C ‐ Replacement
Replacement (Option C) includes a design of a new
two‐story facility on the existing campus to be in
compliance with the proposed program, including
square footage and proper spatial and educational
relationships. The existing building will remain
operational during construction of the new building
and will be demolished when the new building is
completed. The site design will address traffic
patterns, parking, and replacement athletic fields at
the location of existing building to be demolished. The
Community Media Center will be replaced in this
option to provide space for the relocated athletic
fields and will be constructed as part of the new
building.
Option D – Replacement Offsite
Replacement Offsite (Option D) includes a design of a
new two‐story facility to be in compliance with the
proposed program, including square footage and
proper spatial and educational relationships. This
option will be constructed on a site to be determined.
The existing building will remain operational during
construction of the new building and the building will
be vacated when the new building is completed,
leaving it available for future use. The new site design
will optimize traffic patterns, parking, and stormwater
management at the new site.
Executive Summary ǀ 02
Carroll County Career & Technology Center ǀ 10 January 10, 2017
OPTION A ‐ PARTIAL MODERNIZATION
OPTION B ‐ MODERNIZATION
LEGEND:
*Costs include site and building construction;
phasing; and contingency costs.
OPTION A
Area of Existing Building 116,775 GSF
Area of Demolition 0 GSF
Area of Modernization 116,775 GSF
Area of New Construction 21,000 GSF
Total Area 137,775 GSF
Total Estimated Construction Cost* $42,088,199
OPTION B
Area of Existing Building 116,775 GSF
Area of Demolition 7,550 GSF
Area of Modernization 109,225 GSF
Area of New Construction 91,185 GSF
Total Area 200,410 GSF
Total Estimated Construction Cost* $66,239,686
Executive Summary ǀ 02
Carroll County Career & Technology Center ǀ 11 January 10, 2017
OPTION C ‐ REPLACEMENT
OPTION D ‐ REPLACEMENT OFFSITE
OPTION C
Area of Existing Building 116,775 GSF
Area of Demolition (entire school) 116,775 GSF
Area of Modernization N/A
Area of New Construction 207,210 GSF
Total Area 207,210 GSF
Total Estimated Construction Cost* $72,190,564
OPTION D
Area of Existing Building 116,775 GSF
Area of Demolition (entire school) 0 GSF
Area of Modernization N/A
Area of New Construction 200,410 GSF
Total Area 200,410 GSF
Total Estimated Construction Cost* $66,359,258
LEGEND:
*Costs include site and building construction; phasing; and contingency costs.
Executive Summary ǀ 02
Carroll County Career & Technology Center ǀ 12 January 10, 2017
Alternative Sites
As part of the design option review process, CCPS directed HCM to review the viability of locating portions of CCCTC programs at existing CCPS facilities. HCM reviewed potential spaces at Westminster High School, South Carroll High School, and North Carroll High School. In each case, space could be utilized to reduce the size of the required additions or size of a replacement facility. However, renovation costs would be required at similar $/SF capital renovation costs as required to renovate the existing facility to accommodate the relocation of the programs to these spaces. Operational costs (i.e. transportation costs, additional staffing, utility costs, etc.) also will need to be accounted for and will vary significantly between currently occupied facilities and buildings that are not currently in use. Refer to Appendix A for a cost breakdown of work typical for renovation at Westminster High School if some programs are relocated as an example. The proposed options do not take relocation of programs to other sites into account for purposes of this study.
Carroll County Career & Technology Center
HISTORY
History ǀ 03
Carroll County Career & Technology Center ǀ 13 January 10, 2017
Historical Summary
The existing building, constructed in 1969, has been expanded on one occasion and has no historical significance. A stepped, one story addition was constructed in 1986 and contains high bay classroom and lab spaces for the HVAC, Welding, and Heavy Equipment and Truck Technology (Diesel) programs. In 1998, the original storage building on the west side was renovated to be shop space for the Auto Collision Repair program.
Years of Construction Plan
Maintenance, repair, and replacement projects have occurred throughout the life of the building.
Projects performed in the last 15 years include:
2001 ‐ Replace Aluminum Exterior Doors 2014 ‐ Exterior Lighting Upgrade
2002 ‐ Replace Cooling Tower 2014 ‐ Security Upgrades (Access Control
2003 ‐ Replace VAT flooring with VCT and Visitor Management System)
2005 ‐ Replace VAT flooring with VCT 2015 ‐ Roof Replacement
Carroll County Career & Technology Center
EDUCATIONAL GOALS
Educational Goals ǀ 04
Carroll County Career & Technology Center ǀ 14 January 10, 2017
Educational Program
A primary goal of this study is to analyze the educational adequacy of the existing building to determine
if it can accommodate the proposed educational program and if not, determine what is required to
achieve the educational goals put forth by the Study Team. This includes accommodating the current
enrollment of 769 semester 1 students, 815 semester 2 students, and a wait list of 300 students. A
program inventory created collaboratively by Carroll County Public Schools and Hord Coplan Macht was
used as a baseline. Program inventory was based on enrollment needs including wait list, state
education guidelines, and programs from comparable career and technology facilities in Maryland. The
program is organized into the six career clusters, administration, and general education. The six career
clusters are:
Engineering
Business/ Retail
Health & Human Services
Construction
Computer Related
Transportation
When a modernization project moves forward, a Planning Committee will be formed and they will
develop a detailed educational specification at that time.
An analysis of the proposed program versus the existing building identified an additional 82,457 gross
square feet is required to be added to the existing building to accommodate the proposed program (see
Program Summary Table at the end of this section). The additional square footage is addressed in the
four design options presented in this report. The analysis also revealed many educational program
deficiencies with the existing building that will require reconfiguration and expansion of the existing
building to accommodate. A partial list of deficiencies is as follows:
Administration suite lacks storage for general use and records.
Guidance suite is comingled with main administration.
Health suite does not meet COMAR requirements – all health services are provided from a single office that is accessed through the main office.
Maintenance personnel share space with the building maintenance program for students.
Engineering program is lacking in quantity of classroom and storage spaces.
Manufacturing Lab is undersized and program lacks adequate storage space.
Drafting program lacks dedicated storage space.
Welding program lab and classroom are undersized and there is no locker space for female students.
Finishing area of welding is housed in a mezzanine, making it inaccessible to students/staff that cannot use stairs.
Educational Goals ǀ 04
Carroll County Career & Technology Center ǀ 15 January 10, 2017
Textiles/Fashion design space is undersized and configured in an inefficient shape, making space deficiencies worse.
Cosmetology program lacks the appropriate quantity of classroom spaces and its support spaces are undersized.
Culinary Arts program is undersized in all programmed spaces and locker spaces are located in storage closets.
Special education space is grossly oversized while math, English, and computer spaces are undersize.
Food service lacks a dedicated storage room.
Academy of Health Professionals program is deficient in size, number of lab spaces, number of classroom spaces, and required support spaces. A portion of this program is located in a relocatable classroom space.
Biomedical program labs are undersized and the program lacks dedicated storage space.
Criminal Justice program lab is undersized, located in a relocatable classroom, and lacks the required amount of classroom spaces.
Construction programs (HVAC, Carpentry, Masonry, Electrical, and Building Maintenance) have undersized lab and classroom spaces and do not have locker facilities for female students. Storage space is highly concentrated in mezzanines, making it inaccessible for students/staff who cannot use stairs.
Building maintenance program has no dedicated space. They share the building services staff space (see item above).
Video production lacks dedicated support spaces, possesses an undersized lab space, and is currently located in a relocatable classroom.
Print production lacks a photo lab. Program currently uses a mechanical room for photo development.
Computer Technology and CISCO/Networking programs have undersized labs, too few labs spaces, and no dedicated storage. CISCO is currently located in a relocatable classroom.
Automotive Technology is undersized by nearly one half the programmed size.
Collision Repair program is undersized, lacks a dedicated paint booth area (it currently uses shop space), and lacks locker space.
Heavy Equipment and Truck Technology (Diesel) is undersized by approximately 33%.
Staff resource rooms do not exist for the career clusters. Staff currently share space with the special education area for this use.
Retail spaces (cosmetology, textiles/fashion, and culinary) do not have dedicated public access points. Patrons must walk through the building to access these spaces.
Educational Goals ǀ 04
Carroll County Career & Technology Center ǀ 16 January 10, 2017
In addition to the programmatic deficiencies noted above, there are deficiencies and inefficiencies with locations of programs within the existing building. A partial list follows and will be refined more when the detailed educational specification is written and identifies specific adjacency requirements that need to be met.
The cosmetology salon, culinary restaurant, and textiles/fashion lab do not have exterior access for community patrons.
Health and Biosciences cluster spaces are spread out across four locations over two floors, with one being a relocatable classroom.
Engineering cluster is spread out across three locations, including space that divides the Information Technology cluster.
Business and retail spaces are spread out across three locations.
Main entry is not based on prevailing site access point/route.
Elevator location is as remote from main entry as possible, requiring a user to traverse the entire building to use it.
Building services space and loading dock are not optimally located.
Educational Goals ǀ 04
Carroll County Career & Technology Center ǀ 17 January 10, 2017
The following table summarizes the existing program and compares it to the proposed program. The programs in the table are organized by career cluster. Items highlighted in red identify the major programmatic deficiencies.
Program Summary Table
Items highlighted in red are deficiencies with the current building that do not meet the proposed program. Subtotals have
been provided per career cluster for an additional level of information.
Educational Goals ǀ 04
Carroll County Career & Technology Center ǀ 18 January 10, 2017
Educational Goals ǀ 04
Carroll County Career & Technology Center ǀ 19 January 10, 2017
Educational Goals ǀ 04
Carroll County Career & Technology Center ǀ 20 January 10, 2017
Educational Goals ǀ 04
Carroll County Career & Technology Center ǀ 21 January 10, 2017
Educational Goals ǀ 04
Carroll County Career & Technology Center ǀ 22 January 10, 2017
Educational Goals ǀ 04
Carroll County Career & Technology Center ǀ 23 January 10, 2017
Educational Goals ǀ 04
Carroll County Career & Technology Center ǀ 24 January 10, 2017
The following table summarizes the program spaces that are required to be added to accommodate the current Wait List. The programs in the table are organized by career cluster.
Carroll County Career & Technology Center
EXISTING CONDITIONS
Existing Conditions ǀ 05
Carroll County Career & Technology Center ǀ 25 January 10, 2017
EXISTING CONDITIONS
SITE
Site Description
The subject site for Carroll County Career &
Technology Center is located at 1229
Washington Road, Westminster, Maryland
21157. The site is approximately 68.56 acres
and currently contains the Career & Technology
Center building, five (5) relocatable classroom
buildings and the existing Westminster High
School building. The property is also known as
parcel 412 as shown on tax map 52, grid 7. The
tax account number for the property is 07‐
003528. The site is owned by the Board of
Education of Carroll County and the deeds for
the property can be found in the Carroll County
Courthouse at Liber 436, Folio 628.
The property is bounded by Washington Road
(MD Route 32), a retirement home facility, and
an apartment complex to the west, Municipal
buildings to the south, single family residential
homes and New Washington Road (MD Route
97) to the east and single family residential
homes and Hook Road to the north.
Site Circulation and Parking
There are three existing access points onto the
site, one of these access points is located along
Washington Road (MD Route 32). The other
two access points are located along Washington
Lane. The first access point along Washington
Road is located opposite the entrance to the
Golden Living Center just south of Pennington
Place. This access point provides access to the
Career & Technology Center, Westminster High
School shared parking area, Westminster High
School bus loop and the loop road that runs
around both buildings. The main parking lot for
the Career & Technology Center is located on
the west side of the existing building and is also
accessed from the loop road. This parking lot is
shared with the existing Community Media
Center that is located on a county owned parcel
that wraps around the southern portion of the
parking lot. The Career & Technology Center
main parking lot contains approximately 230
parking spaces including 14 ADA accessible
parking spaces. The shared parking lot located
off the northwest corner of the Career &
Technology Center contains approximately 157
parking spaces including 5 ADA accessible
parking spaces.
The second access point along Washington Lane
appears to mainly serve the Westminster High
School. The third access point is also located
along Washington Lane and serves as access to
both the Career & Technology Center and
Westminster High School. There is an
additional parking lot located off of this access/
loop road that appears to be primarily for the
Existing Conditions ǀ 05
Carroll County Career & Technology Center ǀ 26 January 10, 2017
high school. This parking lot is located off the
northeast corner of the Career & Technology
Center and contains approximately 91 parking
spaces.
Zoning Information
The property is currently zoned as C ‐
Conservation District. The properties
surrounding the school site to the east are
zoned Residential (R‐20,000). The properties to
the north and west are zoned Residential (R‐
10,000). The properties to the south are zoned
Conservation District (C).
The following specific development standards
for the Conservation zone (an excerpt from Title
15‐Chapter 158 Zoning Regulations) of the
Carroll County Maryland Code of Ordinances
are provided for guidance only. Per Chapter
158, schools are considered a principal
permitted use.
Bulk Zoning Regulations in a Conservation zone
for the current permitted use of a school are as
follows:
Minimum lot size 10 acres
Minimum lot width 500 feet
Minimum setbacks for principal structures:
Front Yard 150 feet
Rear Yard 50 feet
Side Yard 100 feet
Maximum height limitations:
Principal structures 35 feet
Accessory structures 25 feet
Site Soils
According to information obtained from the
United States Department of Agriculture
Natural Resources Conservation Service, the
site falls into six (6) distinct soil groups:
BaA – Baile silt loam, 0 to 3 percent slopes.
BrD – Brinklow channery loam, 15 to 25 percent
slopes.
GeC – Glenelg channery loam, 8 to 15 percent
slopes.
GfB – Glenelg‐Urban land complex, 0 to 8
percent slopes.
UrB – Urban land‐Udorthents complex, 0 to 8
percent slopes.
WhB – Wheaton‐Glenelg complex, 0 to 8
percent slopes.
Refer to image below for soil group locations.
Existing Conditions ǀ 05
Carroll County Career & Technology Center ǀ 27 January 10, 2017
Additional information regarding these soils is
identified below:
Map
Unit
% of
Site
Area
Hydro
Soils
Group
Class Hydric
Soils
Topsoil
Source
BaA 12% C/D MH Yes Poor
BrD 6% C CL No Poor
GeC 1% B ML No Fair
GfB 23% B ML No Fair
UrB 36% D N/A No Not
Rated
Wh
B 22% B ML No Fair
Site Topography
The site topography has gradual changes in
elevation. The highest elevations are along the
northern portion of the property. From there
the grade slopes down toward the south
gradually to the two plateaus of the site where
the buildings and fields are located. The grades
near the building are slightly higher than the
field grades. The grades continue to gradually
slope across the fields toward the southern
portion of the property. In the vicinity of the
Career & Technology Center 1986 addition, the
grades come up approximately 5’ from the
remainder of the building on the southern side
and then they fall off quickly toward the south.
Water Service
Based on our review of existing documentation,
it appears that the existing building is serviced
from the existing 12” water main located within
Washington Road. Several fire hydrants exist
on‐site.
Sanitary Sewer
The existing building is currently served by a
public sanitary sewer system. The existing
sewer leaves the building in several locations in
the back along the eastern building wall. The
sewer line is 8” in size and is collected at a
manhole just off the loop road to the east.
From the manhole, the 8” sewer line leaves the
site on the south side where there is an existing
8” public sewer line.
Storm Drains
Storm water around the site is conveyed via a
combination of overland flow and closed storm
drain system. Primarily, the closed storm drains
convey runoff from the existing building roof
and paved parking areas. The storm drains
range in size from 6” to 60”. The majority of
the storm drainage discharges on the
southeastern portion of the property into an
existing stormwater management pond.
Existing Conditions ǀ 05
Carroll County Career & Technology Center ǀ 28 January 10, 2017
Stormwater Management
The site does currently contain one stormwater
management facility. This facility is a pond
located on the southeastern portion of the site.
Any new construction that occurs will be
required to meet the requirements established
by the Maryland Stormwater Act of 2007.
These guidelines establish a process by which
new construction needs to utilize sustainable or
environmental site design (ESD) to the
maximum extent possible to satisfy water
quality requirements. ESD’s include but are not
limited to micro‐bio retention, dry and/or wet
swales, rain gardens, etc. Attempts should be
made to provide for impervious disconnects
and to allow for adequate open space to
construct multiple smaller facilities throughout
the site to satisfy these requirements.
Floodplains, Wetlands, and Waterways
The site is not located within the 100 year
floodplain as delineated on FEMA flood
insurance rate map 24013C0215D. The site is
located in zone X which means an area
determined to be outside the 0.2% annual
chance floodplain. A review of the Maryland
Department of Natural Resources (DNR)
mapping indicates that onsite wetlands do exist
on the site. The wetland areas are located near
the existing pond. It also appears that a portion
of Middle Run also runs through the
southernmost corner of the site.
Landscape, Trees and Forest Conservation
There are no existing forested areas located on
the site. There are several groupings of trees
located sporadically around the site. A forest
stand delineation and forest conservation plan
will be required for any development that
exceeds 40,000 square feet on the site. There
were a few large trees noted during our site
investigation. Specimen tree removal that may
be required will require a variance as well as
mitigation as part of any design that impacts
trees that are determined to meet specimen
tree requirements.
Recreational Site Amenities
The property has several on‐site recreational
areas located on the eastern portion. They
consist of 2 baseball fields, a grassed multi‐
purpose field, a track with multi‐purpose field
located within it, 3 long jump runways and 4
tennis courts. There is also a soft surface play
area located on the south side of the high
school.
ARCHITECTURAL
Existing Buildings
The original building was constructed in 1969,
with an addition to the Southeast side of the
building in 1986. A renovation to an original
storage building in 1998 converted the
structure to an Automotive Collision Repair lab
and classroom building. A storage building on
the West side of the building was added in 2004
for building maintenance staff. Numerous
modifications to the interior walls have been
made throughout the history of the building to
accommodate the delivery of the program to
students.
The original building is a two story structure
with the main entry at the upper level and a
grade change around the rear of the building to
at‐grade access on the lower level. An elevator
and two stair towers allow access to the lower
level. The upper level contains the
Administration, cafeteria, kitchen, health and
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human services labs and classrooms and the
majority of the construction labs and
classrooms. A courtyard is located on the upper
level. The lower level contains the automotive
and biomedical labs and classrooms and the
main mechanical room. Greenhouses serving
the biomedical program are adjacent to the
lower level. The Auto body building is located
on the west side of the building at the same
elevation as the ground floor of the original
building. The 1986 addition follows the grade
on the Southeast side of the building with the
floor elevation between the first and ground
floors of the original building. Access to the
addition is via a stair tower on the North side
and a ramp on the South side. Diesel
Mechanics, HVAC, and Welding are located in
the addition.
Roof
The roof over the 1970 and 1986 portions of the
building was replaced in 2015, and is in good
condition. Roof drainage is via internal roof
drains. No overflow roof drains, as currently
required by Code, were observed in the areas
served by internal roof drains.
Exterior Wall
The exterior walls of the 1970 and the 1986
sections of building are 14” thick masonry cavity
walls consisting of 7.625” concrete block
backup, 1.5” of rigid board insulation, 1.25” air
cavity, and 3.625” brown brick veneer. Fluted
white CMU veneer is used as an accent finish.
The existing building does not make use of an
air barrier, which is recommended based on
current construction methods. Window sills are
profiled metal sills.
The overall condition of the exterior walls is fair,
however, there are numerous mortar locations
that are in poor condition and require re‐
pointing. Poor mortar joints allow water into
the wall cavity which can then migrate inside
the building, particularly without the presence
of an air barrier.
Exterior Windows and Doors
Exterior windows on the original building are
aluminum windows with single pane glazing.
The frames of these windows are not thermally
broken. Leaks have been noted at these
windows by school maintenance personnel
indicating the need for repair to the window
seals and flashing. Exterior windows in the
1986 addition are thermally broken aluminum
windows with insulated glazing (multi‐pane)
units.
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Exterior entry doors are a combination of aluminum and hollow metal steel doors. At corridors and lobbies, aluminum doors within an aluminum window system are used. Exterior doors to classrooms, labs, and building service spaces are hollow metal steel doors.
Building – Interior
Floors
The main lobby and commons/ dining floor are terrazzo. This extends into some of the Academy of Health Professionals spaces where partitions have been added over time. The remaining corridors in the original building are sealed concrete. Heavy duty lab spaces have sealed concrete floors while classrooms, light duty labs (such as print production and cosmetology), and staff spaces have vinyl composition tile (VCT). The corridors in the addition are vinyl composition tile with rubber flooring on the ramp. The kitchen floor is quarry tile that is in good condition.
If a renovation option that keeps the existing building is selected, the terrazzo floors should remain and be cleaned. The vinyl tile should be replaced as part of a building wide renovation.
Partitions
Interior partitions are typically painted concrete masonry unit (CMU) if part of the original building or addition construction. Where program spaces have been modified to meet
changing program needs, drywall on metal stud or demountable metal partitions have been used. Vinyl cove based is used at all interior partition types.
Ceilings
Ceilings are a combination of acoustical lay in tiles, painted drywall, and exposed painted structure. Corridors, classrooms, and staff spaces utilize 2x4 acoustical ceiling. Toilet rooms and the kitchen utilize painted drywall. Heavy duty labs have no ceilings with roof structure being left exposed and painted.
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Doors/ Hardware
Interior doors are typically wood unless located in a high abuse area that benefits from the use of hollow metal doors. Hardware has been updated so doors have a lever per current design standards for accessibility. Current school design guidelines indicate that all spaces where a student and teacher interact need to have a vision panel into the room. Several repurposed rooms do not currently satisfy this requirement and would require addition of a vision lite kit to the door.
Corridors/ Circulation
Corridors are generally accessible, of adequate width, and in good condition with the exception of the ramped corridor serving the 1986 addition. The ramps are too steep to satisfy ADA guidelines.
Toilet Rooms/Locker Rooms
Toilet rooms are too few in number based on current code requirements for quantity of plumbing fixtures of a building the size of the school. Layout of rooms does not meet ADA guidelines for clear space. Leaking has been noted by school maintenance personnel that would need to be addressed as part of a building renovation.
Locker rooms are required by multiple programs. Many programs have lockers for only one gender. Equal facilities need to be provided to both male and female students for each program. In addition, many locker areas have been located in make‐shift spaces such as existing storage closets or areas partitioned within other spaces. The girls culinary locker room, for example, is located in a corner of the dining area with partitions that were added for privacy. The male culinary locker room is located in a storage closet and has compromised privacy when the door is opened.
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Casework and Equipment
Generally, the casework is stained or painted wood and is in good condition. Some spaces have added mobile or less durable storage that would not be worthy of salvage through a renovation.
Equipment is in good condition and appears to have been updated through the years as program technology needs evolve. We recommend salvaging and reusing equipment in both renovation and replacement options.
Hazardous Materials
Based on the year of construction, it is assumed that there are hazardous materials in the building construction in the form of asbestos, lead based paint, etc. The hazardous materials report maintained by CCPS will be reviewed as part of the final report.
STRUCTURAL
Existing Building Observations
Structural drawings for the original building were provided for our review, and indicate the building was designed in 1969. An addition at the east end of the building was introduced in the late 1980s, however drawings were unavailable at time of writing.
Based on our review of the documents and on‐site observations, the following is a summary of construction:
Roof Framing
Original construction consists of precast double tees, single‐stem “giant” tees, and channel slabs. Roof framing support consists of masonry bearing walls at perimeter and corridors as well as structural steel girders and columns at the commons area.
Roof framing at the addition consists of
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metal deck on long‐span open web steel joists. Joists are typically supported on interior and exterior masonry bearing walls.
Floor construction in the areas bounded by lines A, F, 1, 18 and lines F, H 1, 9 consists of a 4‐inch reinforced concrete slab on composite structural steel filler beams. Filler beams are typically 24‐inches in depth spaced at 8‐feet on‐center and supported by 24‐inch structural steel girders and W8 steel columns.
Floor construction at the Ground Floor and balance of the First Floor consists of a 4‐inch concrete slab‐on‐grade, reinforced with welded wire fabric.
Exterior Walls consist of masonry veneer on concrete masonry unit back‐up.
Foundations are conventional spread footings bearing at a nominal depth.
Observations
Our walk‐thru of the existing building was for general review of the existing conditions, to the extent visible without demolition, and to gather information from maintenance personnel regarding known issues and remedial work undertaken.
Based on our walk‐thru and conversations with the building engineer, we note the following:
Façade:
Exterior veneer has varying degrees of mortar deterioration, including loose and missing mortar.
Transition from brick to fluted CMU veneer near the top of the walls appears to have been caulked (white caulk). This was observed at the interior courtyard and some portions of exterior walls.
Auto Repair Garage Bay Doors: Lintels were recently replaced to address corrosion issues, including failure of lintel at one of the bay doors.
Courtyard Leaks: Building engineer noted periodic leaks occur in the area of the courtyard to the ground floor in rain events.
Storefront: Building engineer noted ongoing leak issues at base of storefront systems, including at the north corridor between commons and classrooms, the adjacent stairwell, and courtyard.
Machine Shop: The existing slab‐on‐grade in the machine shop shows signs of settlement at the north, east and south walls of the shop. Cracking of the slab was evident, in these areas. East wall also exhibits cracking in the CMU and a gap at the slab‐on‐grade and masonry wall interface.
CMU Walls: With the exception of the Machine Shop noted above, cracking was not evident in observed interior masonry walls and interior wythes of exterior walls.
Assessment and Recommendations
Based on our observations, it is our opinion that
the existing building is structurally sound and
reuse of the existing building is feasible with
proper detailing, repairs and separation
considerations.
New addition(s) should be structurally
separated by expansion joints to
accommodate differential settlement
and mitigate the need to upgrade the
lateral load resisting system of the
existing facility.
A façade survey should be performed to
define locations, extent and scope of
façade repairs required. Local
destructive investigation may be
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required to assess veneer and lintel
conditions. A contingency should be
carried in the cost estimates for
restoration of facades and lintels.
Existing machine room slab‐on‐grade
cracking should be further investigated.
This will require geotechnical sampling
in the area to assess subgrade
conditions. We would recommend a
contingency be carried to reflect
removal and replacement of the
perimeter slab‐on‐grade in the areas of
settlement.
Slab‐on‐grade upgrades: As noted
above, the existing slab‐on‐grade is a 4‐
inch slab reinforced with welded wire
fabric. Dependent on the space
program and associated equipment
required it may be necessary to remove
and replace the existing slab‐on‐grade
with heavier slab‐on‐grade
construction.
We understand there are existing geothermal
well fields in the vicinity of the existing play
fields. As‐built location and extent of the wells
should be understood prior to commencement
of design, and building footprint configured in
this area to avoid overlaying or surcharging of
the wells and associated piping. Construction in
this area will require a long run of retaining
walls to level the site for the new play fields.
Cost effective solutions for these walls may
include dry stacked modular retaining wall
systems. Final design and wall type should be
determined following geotechnical
recommendations for local and global stability.
FOOD SERVICE/KITCHEN
General Description
Carroll County Career and Technology Center’s
culinary arts program has both culinary and
pastry chef classes. These classes are held
simultaneously in the same kitchen spaces.
Class sizes are held to 22 students per
instructor.
Existing Conditions
Floor Finishes
Kitchen and serving areas are thick‐set quarry
tile with coved base. Although old, most tiles
appear in sound condition. Due to smooth
surface, tiles can be slippery when wet or laden
with grease. Floors in the dry storage are
concrete
Wall Finishes
In the kitchen, the walls are glazed tiles up to
finished ceiling and appear in good shape. In
dry storage, the walls are painted block.
Ceilings and Lighting
Ceiling heights are 10’‐0” high and exposed
throughout the kitchen, dry storage, and
serving area. Ceilings are painted and
scrubable. Twin bulb surface mounted
florescent light fixtures. Light levels throughout
the space are above the 50’ candle as required.
Assessment of Food Service Areas/Rooms
Receiving
This area has a raised deck for deliveries. To
access the kitchen for deliveries they must cross
a hallway used by the general population.
Supplies cannot be brought in on pallets with all
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door sizes having standard openings. All
products are removed from the pallets and
taken by hand truck to the refrigerator/freezer
and dry storage. Refer to photos below.
Fire Protection
An Ansul system is in place. It is possible that it
may have to be updated in the future.
Dry Storage
Product is stored on 4‐tier mobile shelving
units, dunnage racks, and can racks. Walls are
painted block. Flooring is concrete. Ceiling is
painted drywall. Light levels appear sufficient.
There appears to be sufficient storage in the
space.
Walk‐in Cooler and Freezer Storage
These units are in fair condition. The unit is set
up to enter through the cooler to access the
freezer. Light is inefficient in both units. Both
units are completely filled to capacity indicating
that they are in need of more cooler and freezer
space. Refer to photos below.
Kitchen
Area is poorly ventilated for the amount of
equipment in the space. Additional cooking
equipment is needed to properly prepare
current menu items. There are (3) hand washing
sinks to cover entire kitchen space in violation
of health code. Light levels appear sufficient.
Layout for the kitchen flow is inefficient. Walls
could be removed and the area reorganized to
provide a more laborsaving workflow from
receiving, to storage, to prep, cooking, plating
serving and clean‐up. Refer to photos below.
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Plating Area
The chef’s table area work flow is inefficient,
cramped and labor intensive for the number of
students in the space. Refer to photo below.
Restaurant/Classroom
Students serve the teachers in the designated
dining area. The space is separated with a
folding divider wall to create a classroom on
one side and teacher dining on the other side.
More space is recommended for both areas.
Refer to photos below.
Dishwashing
The Dish machine is fairly new. The ceiling is
painted drywall. The dirty dish table is not
configured for the best use of space. The tables
have galvanized bases that are high
maintenance and are no longer to code. Refer
to photos below.
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Janitor Closet/Mop Sink
There is no mop sink in the janitor area. The
washer is oversized for the needs of the
kitchen. It is recommended to have a dedicated
soap and chemical storage space.
Hand Sinks
There are only three (3) hand sinks in the
kitchen area. Today’s health code requires a
hand sink in each section of the kitchen:
cooking, food prep, serving and dishwashing
within 15 feet. One hand sink has an eye wash
station which is no longer to code and should
be in the main cooking area with more access to
the students.
Assessment of Equipment
Exhaust Hood
Hood appears to be original to the program. It
appears in good working condition. Some of
the equipment currently in the space is not
under the hood and will need to be relocated to
comply with code. This will require a new,
expanded hood that is code compliant.
Current Cooking Equipment Inventory
(1) ‐ Double Fryer (Recommended that a dump
station is added for this piece of equipment)
(2) ‐ Double‐Stack Convection Oven (one is not
under the hood)
(1) ‐ Griddle
(1) ‐ Char‐broiler
(1) ‐ Salamander
(2) ‐ 10‐Burner ranges
(1) ‐ Steamer (Should be under the hood)
Additional Cooking Support Equipment
Floor Mixer‐60‐Gallon
Hot Food Wells‐4 Wells‐1 each
Reach‐In Cooler‐2 each
Double door Reach‐In Cooler‐1 each
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Mobile Heated Cabinets‐1 each
Pan Rack‐2 each
Prep Sink,
Pot Sink
Baker’s Table
Scales‐3 each
Walk‐In Cooler/Freezer
4 Compartment Hot Food Chef’s Table
Ansul System
Worktable with Sink
Coffee Makers
Hood
Ice Machine
5‐gallon Mixers‐5 each
Slicer
Heated Proofer Cabinet
Worktables‐10 Stainless Steel, 5
Butcher Block
Utility Cart‐1 each
Baker Storage Bins
Hand Sinks‐3 each
Shelving
Storage Cage
Washer & Dryer
Beverage Counter with Sink
Most of the equipment appears to be in fair to
good working condition.
Recommendations
The cooler/freezer is undersized for the
class needs. Consider increasing the
size of the cooler/freezer with a more
efficient separate system.
Install a demonstration kitchen with
induction cooking, under‐counter
refrigeration, and display mirror with
TV/video screens to provide more
extended student access to the
instructor.
It is recommended that knife storage is
placed in a secured cabinet.
Expansion of the beverage station is
recommended to properly address how
stations flow during usage. Possibly
include an ice tea dispenser.
Conclusions
With the current number of students in the
program the space is overcrowded. Pastry
students and culinary students constantly cross
paths while accessing the cooking and pastry
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equipment which is used by both programs.
With the possibility of expanding the programs
the kitchen will need to be enlarged to
accommodate both programs. The majority of
the equipment is reusable with various life
spans per each piece. Additional cooking
equipment recommendations would include a
tilting skillet, a combi‐oven, induction cookers
and a pastry deck oven. Reconfigure overall
kitchen cooking, prepping and serving areas to
better maximize space. The wall between the
kitchen and pot sink area could be removed if it
is not structural, then the kitchen can be
reconfigured to create additional space for the
current program. If expansion of the programs
is in the future, additional square footage will
be required.
MECHANICAL
EXISTING MECHANICAL CONDITIONS
General
The existing mechanical systems, for the most
part, are original to the time of construction, be
it the 1969 building or the 1986 Addition. The
Auto Collision Shop, which was relocated in
1998, into the renovated Storage Building, has
new HVAC and plumbing systems and
equipment. Similarly, the Masonry Shop and
Carpentry Shop HVAC Systems were upgraded
to help alleviate indoor air quality concerns.
The existing cooling tower, chiller, domestic hot
water heater(s), greenhouse systems, and shop
air compressors have been replaced as part of
independent systemic projects over the years.
Supplemental split type direct expansion
systems have been sporadically added
throughout the building.
There have been several modifications to the
spaces and/or their function with little to no
modifications to the mechanical system.
Heating
The original and primary heating source for the
building is electric resistance. Carroll County
Public Schools, in conjunction with BGE, ran a
new four‐inch (4”) two‐pound (2 psig) gas main
into a small mechanical room at the northwest
end of the building which also houses the
domestic hot water heaters. Currently, this gas
service does supply the domestic hot water
heaters, greenhouse units, carpentry and
masonry shops make‐up air units, collision shop
rooftop unit, collision shop classroom rooftop
unit, and the paint spray booth heater.
Currently, a 3‐inch valved and capped
connection exists in the water heater
mechanical room for future extension. A valved
and capped connection was also provided for
the emergency generator; however, at this
time, the unit has not been converted from LP
to natural gas. A gas line has been extended to
the Lower Level Electrical Room for connection
to the emergency generator, which currently
remains propane‐fired.
Cooling
The building is partially air‐conditioned. Labs,
such as Diesel, Welding, HVAC, Automotive
Mechanics, Masonry, and Carpentry Labs are
heated and ventilated only. Classrooms are
typically cooled. Chilled water is generated by a
water‐cooled chiller located in the Lower
Level/Ground Floor Mechanical Equipment
Room which serves the original building only.
Split type Dx units serve the 1986 Addition
classrooms as well as various spaces within the
original building.
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The chiller, manufactured by York International
(Model #VCWJ77KHO‐46PA; Serial# SMEM‐
569940) was installed in 1997, utilizes
refrigerant R‐22, has 181 nominal ton capacity,
has two (2) semi‐hermetic reciprocating
compressors, and operates at a flow rate of 436
gallons per minute (gpm). A new Spirotherm air
and dirt separator has recently been installed in
the chilled water system. Two (2) base‐
mounted end suction pumps, one (1) standby;
circulate chilled water through steel pipe mains
to unit ventilators which serve individual
spaces.
A forced draft, centrifugal type open cooling
tower is located at the northwest end of the
building. It has a nominal capacity of 116 tons.
The unit is fairly new and is manufactured by
Baltimore Air Coil Company (BAC Model
Number VTO‐116M). Condenser water pipes
between the building and cooling tower are
located below‐grade. A remote sump tank is
located in the Lower Level/Ground Floor
Mechanical Equipment Room, which houses the
chiller and multiple shop air compressors. Two
(2) base‐mounted end suction pumps, one (1)
standby, circulate condenser water to the
water‐cooled chiller.
Compressed Air
A new (2003/2004) Ingersoll Rand air
compressor and refrigerated air dryer has been
installed for the shops. The existing air
compressors/tanks are used for back‐
up/redundancy. These air compressors, dryers,
and tanks are located in the Lower
Level/Ground Floor Mechanical Equipment
Room, which is shared with the chiller and
cooling plant equipment.
Individual Space Condition – 1986 Addition
The HVAC and Diesel Shops utilize roof‐
mounted heating and ventilating units equipped
with electric resistance heating coils (42 kW
HVAC Shop/78kW Diesel Shop). These shops
have exposed ductwork, a roof‐mounted gravity
relief air hood, space exhaust fan and ceiling
fans. The Diesel Shop has multiple dedicated
local exhaust systems. The Classroom areas are
equipped with a residential type split fan coil
unit with electric heat and remote air‐cooled
condensing unit. Outside air is provided
through a gravity intake vent connected to the
return air duct. Independent exhaust fans serve
the toilet and locker room areas.
The Welding Shop utilizes two (2) roof‐mounted
heat recovery units equipped with 57 kW
electric heat coils. Heat recovery units contain
both a supply fan and exhaust fan. The exhaust
system connects to multiple welding booth
canopy hoods and local source capture work
bench inlets. The classroom is served with a
residential type split fan coil unit with electric
heat and remote air‐cooled condensing unit.
Outside air is provided through a gravity intake
vent connected to the return air duct. An
independent exhaust fan serves the toilet room
and locker room area.
The Conference room is served with a
residential type split fan coil unit with electric
heat and remote air‐cooled condensing unit.
Outside air is provided through a gravity intake
vent connected to the return air duct. An
independent exhaust fan serves the toilet room
and locker room area.
Electric heaters are located at the entryways
and in the corridor.
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Individual Space Condition – Original
Building
Greenhouse
The Greenhouse system has been recently
upgraded, including new gas‐fired heating units,
circulation fans, motorized windows, water
spray system, and “microgrow” greenhouse
control system.
Horticulture (now Biomedical)
A split A/C unit currently serves the Biomedical
Computer Lab. A heating and ventilating unit
ventilator currently serves the Biomedical Lab.
A fume hood was recently installed with an
exhaust fan tied into the existing Collision
Repair Shop Paint Booth Exhaust Fan/Duct
System. The Biomedical Shop is currently
located where the existing Paint Spray Booth
was located.
Auto Shop Labs
The main incoming fire service is located in the
old Collision Shop Area (New Auto
Transportation Area). A large heating and
ventilating unit (96 kW heating coil) serves the
old Collision Repair Shop and is hung in the
associated Storage Room. Similarly, a large
heating and ventilating unit (50 kW heating coil)
located over the same Storage Area is one of
two (2) units that serve the Auto Mechanics
Lab. The second unit (60 kW) is located over
the adjacent gang toilet rooms at the Southeast
end of the Lower Level. The common classroom
is served by a horizontal/above‐ceiling heating
and ventilating unit ventilator. This unit
ventilator and the two (2) heating and
ventilating units located above the Storage
Room have outside air ducted to an areaway
located in the Courtyard at the Main Level.
Both shops have independent exhaust systems
and the Auto Transportation Area still has local
dust filtration units originally utilized for the
Collision Repair Shop.
Collision Repair Shop
The Collision Repair Shop was previously
relocated to the existing Storage Building, which
is adjacent to the Main Building, Lower Level,
Northeast side. The classroom is served by a
dedicated roof‐mounted packaged air handling
unit with gas‐fired furnace. The Collision Repair
Lab is served by an independent roof‐mounted,
gas‐fired heating and ventilating unit. A new
Paint Spray Booth is located at the Southeast
end of the building and its associated air
exchange heater unit (gas‐fired) is located
outside at grade.
Lower Level Corridor
Relief air from the labs is ducted into the
corridor where a separate intake grille is
connected to a vertical duct up to a roof
exhaust fan. This is currently a Code Violation.
Electric unit heaters are located in the corridor
and stair towers.
Upper Level East Labs (Electrical, Career
Assessment, Physical Rehab., Cosmetology)
These Labs are located on the Northeast side of
the building over the Lower Level
Lab/Classroom spaces and look out over the
new Collision Shop. These spaces are served by
both horizontal (above‐ceiling) and vertical
(floor‐mounted) type unit ventilators. All
spaces except for the Electrical Lab are cooled
and served by the central chilled water plant.
Vertical units have through‐the‐wall intake
vents for fresh air, while the above‐ceiling types
are ducted to roof‐mounted fresh air intake
vents. This air is then relieved to the corridor,
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where a roof‐mounted exhaust fan draws the
air through the corridor and relieves it to the
outside.
Due to the odors generated in the Cosmetology
Lab, two (2) heat recovery units were installed
above the ceiling to provide additional fresh air
to the space and dilute/exhaust odors primarily
created by chemicals used in permanent‐wave
solutions.
Carpentry Lab
The Carpentry and Masonry Labs have switched
from the originally intended locations. Other
modifications have also occurred. A new gas‐
fired rooftop heating and ventilating unit was
installed to provide make‐up air to the space as
the original heating and ventilating unit were
already removed. Electric unit heaters provided
the space with heat and are now used to
supplement the heat provided by the make‐up
air system. The dust collector is original and is
still functioning; however, the dust collection
system was recently replaced. A horizontal
heating and cooling unit ventilator serves both
the Carpentry and Masonry Lab Classrooms.
Masonry Lab
The Masonry Shop, similar to the Carpentry
Shop, was recently upgraded with a roof‐
mounted gas‐fired heating and ventilating unit.
New supply and return air ductwork is tied into
the new rooftop unit. The air distribution
system was designed as a push‐pull system
supplying (pushed) clean air at the corridor end
of the space which is then returned (pulled) at
the exterior wall through a filter return grille. A
dust type collector connected to a canopy hood
located over the mixing area was installed to
capture particulate matter during the mixing
process.
Engineering Lab
Two (2) split Sanyo type (ductless mini‐split
system) units and the existing horizontal
heating and ventilating unit ventilator serve the
space.
Manufacturing & Machine Tech. Lab
The Machine Shop is served by a horizontal
heating and ventilating unit ventilator and the
classroom is served by a split fan coil unit with
remote heat pump.
Computer Resource Center (CRC) Lab
An independent ductless split unit by EMI
Technologies serves this space, which originally,
was part of the Main Lobby. An electric cabinet
heater is located within the room.
Textiles and Fashion Design Lab
A split fan coil unit by Trane serves the area.
The remote heat pump is located on the roof.
Two (2) above‐ceiling unit ventilators with
cooling serve the classroom space.
CADD Classroom/Lab
Two (2) vertical (floor‐mounted) unit ventilators
with cooling serve the space.
Video Print Production Room
Two (2) above‐ceiling horizontal style units and
one (1) floor‐mounted vertical style unit
ventilator with cooling serve the space.
Computer Technology Lab/Classroom
An above‐ceiling unit ventilator with cooling
serves the classroom, while a floor‐mounted
split fan‐coil unit, with roof‐mounted heat
pump serves the Tech Lab through an overhead
distribution system.
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Academy of Health Lab Suite
The Academy of Health Suite was originally a
resource center and connecting corridor, both
of which extended from corridor to corridor.
Above‐ceiling unit ventilators were located
above the northeast corridor ceiling and
relieved to the corridor at the southeast
corridor. The current layout creates multiple
spaces within this area, yet only minor changes
to the HVAC System occurred. Health Suite 101
is currently served by a ductless split system.
Commons Area/Student Dining
The Commons Area is an open space served by
six (6) horizontal unit ventilators with cooling
coils. Outside air is introduced into the units
from roof‐mounted gravity vents.
Kitchen/Culinary Arts Lab
Similar to the Commons Area, three (3)
horizontal unit ventilators with cooling coils
serve the space. Outside air is introduced into
the units from roof‐mounted gravity vents.
Roof‐mounted exhaust fans serve the kitchen
hoods and a roof‐mounted tempering unit (108
kW electric heater) provides supplemental
make‐up air for the kitchen hood exhaust
requirements.
Culinary Dining Room (“Restaurant”) and
Classroom
Floor‐mounted heating and cooling unit
ventilators serve these areas.
Office/Administration Suite
A small above‐ceiling self‐contained heating‐
cooling unit serves the interior staff area, while
floor‐mounted heating‐cooling fan coil units
serve the perimeter office space.
Lobby
The Lobby is heated and cooled by horizontal
flush‐mounted recirculating air type unit
ventilators supplemented by cabinet unit
heaters at the entry door.
Evaluation
The existing rooftop units and heat recovery
units serving the 1986 Addition are not
functioning and/or not functioning properly.
The rooftop heating and ventilating units were
manufactured by Bohn, which is no longer in
business. Similarly, the heat recovery units
were manufactured by “Temp Exchanger”,
which also is no longer in business. All of the
equipment, including the split systems, are
beyond their useful lives and are recommended
to be replaced.
The existing chilled water piping systems are
degrading and have caused the need to keep
the chilled water system circulating 24/7,
including throughout the entire heating season
when chilled water is not required. A Spirovent
air and dirt separator has been installed to aid
in cleaning the system. It is our understanding
that the chiller ices up, which is probably the
result of fouling of the evaporator tubes.
Ultimately, it is recommended that the chiller,
piping, cooling tower, remote sump, and all
associated pumps be replaced.
The existing heating system, for the most part,
remains as electric resistance. Even though
electric resistance is 100% efficient, it is
typically more expensive to operate. The
electric heaters are located in equipment (unit
ventilators, fan‐coil units, rooftop units, wall
heaters) that is typically original to the time of
construction. This equipment is beyond its
useful life and is recommended to be replaced.
Existing Conditions ǀ 05
Carroll County Career & Technology Center ǀ 44 January 10, 2017
Based on the age of the terminal unit
equipment, controls, ongoing indoor air quality,
and thermal comfort issues, age and type of
equipment, it is recommended that the HVAC
System and associated electric resistance
heating units be replaced in their entirety. The
existing relief air system uses the corridor as a
duct, which is a Code violation that needs to be
corrected. Most storage rooms have individual
exhaust fans. There are many special system
exhaust fans, as well as relief air system exhaust
fans, which are original and beyond their useful
lives. It is recommended that all exhaust fans
and special exhaust systems be replaced in their
entirety.
ELECTRICAL
Electrical Service and Distribution System
The existing electrical service is the original
main switchboard consisting of a 3000 Amp,
277/480 volt, three phase, 4‐wire service. The
existing medium voltage transformer is located
near the Greenhouse at the rear of the building.
BGE provides primary electric service to the
site. The primary BGE feeder serves both
Westminster High School and the Career and
Technology Center. A maximum load of the
meter serving the School is 2852 kW, which
indicates that the existing switchboard cannot
serve the new loads. In order to serve the new
HVAC loads and future loads, as well as to
provide for capacity for the new classrooms, the
electrical service will be served from a new
switchboard and will back feed the existing
switchboard. The utility transformer will need
to be replaced with a larger transformer.
Emergency power is provided by a propane
generator located in a room next to the Main
Electric Room. The generator serves the
emergency incandescent lights in the stairs.
Lighting
Most of the existing corridors use 1' x 4'
surface‐mounted 1‐lamp fixtures. Key switches
are used to control the corridor lights. Exit
signs use green letters.
Fire Alarm System
The existing Fire Alarm System serving the
building is a combination of the original Simplex
Fire Alarm System and a recently‐installed
Edwards EST2 fire alarm panel, located in the
Main Electric Room. The Fire Alarm System
uses horns and strobes located throughout the
school to provide audible and visual alarms. A
Communicator Panel provides dialup
communications with the UL Monitoring
Service.
Security System
The existing Ademco Security System located in
the Health Suite protects the school using a
combination of door contacts and motion
detectors. The System uses keypads located
throughout the school to arm and disarm the
alarm. A Communicator Panel provides dial‐up
communications with the UL Monitoring
Service. The existing Security System is at its
maximum capacity and will need to be
expanded or replaced.
Closed Circuit Television (CCTV) Security
Camera System
Currently, the school uses fifteen (15) security
cameras connected to a time‐lapse VCR located
in the Principal’s Office in the Main Office.
Existing Conditions ǀ 05
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Access Control System
Currently, the school uses a BEST Access
Control/ Card Reader System.
Video Network Cable Television System
A coaxial video cabling system is provided throughout the school. The video system is powered by a BIDA video amplifier, in the existing Media Retrieval System, located in the Main Office.
Master Clocks
Existing Master Clocks are connected to the
existing Master Clock / Bell System. A Rauland
Time Control unit located in the Main Office
provides control of the Master Clock System.
Voice Network – Telephone / Paging /
Intercom System
The incoming telephone service is a 50‐pair
cable terminating in the Generator Room, next
to the Main Electric Room. The existing Rauland
Telecenter Public Address Cabinet, located in
the Main Office, will be reused and expanded as
needed. The Telecenter System is in good
condition and has capacity to service the new
additions. The existing PA System uses ceiling‐
mounted speakers and call switch. The existing
Northern Telecom Norstar Meridian telephone
switch in the Storage Room will be re‐used.
Data Network
Currently, there exists one (1) MDF (Main
Office). The MDF contains multiple 48 port
patch panels. Category 5 data cabling, installed
around 1999, is provided throughout the
school. Five (5) IDF Rooms exist:
1. Computer Technology
2. Video/Graphic Production
3. Drafting B111
4. Tech Support & Networking
5. Collision Repair Classroom
Existing Conditions ǀ 05
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EXISTING SITE PLAN
Existing Conditions ǀ 05
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EXISTING UPPER FLOOR PLAN
EXISTING BUILDING AREA: 116,775 GROSS SQUARE FEET
Existing Conditions ǀ 05
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EXISTING LOWER FLOOR PLAN
Carroll County Career & Technology Center
CODE ANALYSIS
Code Analysis ǀ 06
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Life Safety Code Issues:
Carroll County Career and Technology Center complied with the building codes enacted at the
time of original construction and the 1986 addition. However, the school is not compliant with
current codes. Renovation of the existing building will require the following items be addressed
to meet current code requirements.
Interior doors contain louvers which allow the passage of smoke. Note that this change
will require modifications to the HVAC system to bring the building into code
compliance.
Elevator located within stair tower which is not allowed by code
Stair towers are not fully enclosed with rated construction.
Storage for culinary program in egress corridor.
Code Analysis ǀ 06
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Accessibility:
The school does not have the required number of accessible lockers.
Many doors do not have the required access space to approach the push or the pull side of the door.
Railings at the stairs and ramps do not meet accessibility requirements.
Ramp to lower floor exceeds slope for an accessible ramp.
Toilet rooms are not accessible.
Current carpentry and masonry labs are not ADA accessible, as they are several feet below the circulation corridor and accessed only via stairs.
Several programs utilize mezzanine space as teaching area, which is not accessible to students or staff.
Carroll County Career & Technology Center
PROPOSED DESIGN OPTIONS
Proposed Design Options ǀ 07
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DESIGN GOALS
The Study Team refined four proposed design concepts to provide CCPS with a range of options that best serve Carroll County Public Schools, Carroll County Career and Technology Center faculty and staff, and the Community’s best interest. This section presents the four proposed plan options in order of increasing degree of architectural intervention. Key advantages and disadvantages are listed for each option along with a corresponding scope of work. The section concludes with a discussion of mechanical and electrical recommendations that are applicable to all four options. All of the options proposed herein have been taken into consideration in the development of the cost estimate presented in section 08.
Option A ‐ Partial Modernization
Addresses the wait list needs of the school with a building addition and renovates the existing building without additional expansion. Existing walls remain in place, limiting program accommodation. Existing relocatable classrooms remain.
Modernizes/replaces all major building systems to ensure compliance with all current building, life safety, energy, and accessibility code requirements.
Improves the interior environmental quality level and educational experience by providing improved comfort systems, and new finishes. Natural light is added in limited areas of the existing building where possible.
Option B ‐ Modernization
Renovates and expands the existing building with 5 additions to accommodate the proposed program with improved adjacencies between program elements. Existing walls are relocated as needed to accommodate the requirements of the program.
Provides a facility that addresses the requirements of the proposed educational program (including wait list) and will support 21st century learning environments.
Modernizes/replaces all major building systems to ensure compliance with all current building, life safety, energy, and accessibility code requirements.
Improves the interior environmental quality level and educational experience by providing natural light, improved comfort systems, and new finishes.
Proposed Design Options ǀ 07
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Option C ‐ Replacement on Existing Campus
Creates a replacement building on the existing campus to accommodate the proposed program (including wait list) with improved adjacencies between program elements.
Reduced scope of additions and renovations.
Provides new building systems to ensure compliance with all current building, life safety, energy, and accessibility code requirements.
Improves the interior environmental quality level and educational experience by providing natural light, improved comfort systems, and new finishes.
Provides new play fields for Westminster High School on the site of the existing building.
Provides a new Community Media Center adjacent to the school for shared use.
Option D ‐ Replacement on an Undeveloped Site
Creates a replacement building on an undeveloped site to accommodate the proposed program (including wait list) with improved adjacencies between program elements.
Provides a facility that addresses the requirements of the proposed educational program and will support 21st century learning environments.
Provides new building systems to ensure compliance with all current building, life safety, energy, and accessibility code requirements.
Improves the interior environmental quality level and educational experience by providing natural light, improved comfort systems, and new finishes.
Alternative Sites
As part of the design option review process, CCPS directed HCM to review the viability of locating portions of CCCTC programs at existing CCPS facilities. HCM reviewed potential spaces at Westminster High School, South Carroll High School, and North Carroll High School. In each case, space could be utilized to reduce the size of the required additions or size of a replacement facility. However, renovation costs would be required at similar $/SF capital renovation costs as required to renovate the existing facility to accommodate the relocation of the programs to these spaces. Operational costs (i.e. transportation costs, additional staffing, utility costs, etc.) also will need to be accounted for and will vary significantly between currently occupied facilities and buildings that are not currently in use. Refer to Appendix A for a cost breakdown of work typical for renovation at Westminster High School if some programs are relocated as an example. The proposed options do not take relocation of programs to other sites into account for purposes of this study.
Proposed Design Options ǀ 07
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Option A: Partial Modernization
Partial Modernization (Option A) includes constructing a 21,000 sf addition that contains spaces for the wait list programs indicated in the program inventory space summary. Proposed work also includes complete renovation of the existing building to bring the entire building into conformance with current building and life safety codes. Enlargement of program space within the existing building is not provided as part of this partial modernization, and life safety renovations may reduce the existing instruction space to accommodate the modifications. Relocatable classrooms will remain during and after completion of the partial modernization. Maintaining building occupancy and operation will require a multi‐phase construction process.
Advantages:
Building:
Accommodates the enrollment of wait list programs
Less overall upfront cost due to reduced scope of additions and renovations
Site:
No loss of parking due to location and size of addition
No loss of play fields
Does not negatively impact Westminster High School operations
Disadvantages:
Building:
Full building program is not addressed, leaving programs with inadequate space by current design standards.
Shape, location, and quality of spaces to be renovated in place is limited by working within the existing building footprint.
Least energy efficient option.
Adjacencies of programs by cluster is not addressed.
Exterior of building is not updated, so there is limited opportunity to see where the money is being spent.
Proposed Design Options ǀ 07
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Several learning spaces are detached from school building as relocatable classrooms and detached collision repair building will remain.
Longest construction duration of four options due to renovation of spaces in place in small phases.
Higher phasing costs due to multiple phases required.
Longer impact on school operations.
Access to the loading dock for culinary and food service deliveries is not adequate (existing relocatable classroom blocks access).
Access to public retail spaces (cosmetology, culinary, textiles/fashion) is poor.
Dining commons is undersized to accommodate increased student population.
Potential for programs to be taken off‐line during construction period based on phasing, amount of time needed to renovate the particular space, and the difficulty of relocating programs to temporary space.
Option A
Anticipated Scope of Work:
Site:
Resurface parking lot serving CCCTC.
Reroute loop road around new addition to maintain traffic flow and provide required fire access.
Relocate storage shed located at southeast side of building.
New Stormwater Management roof drainage and new loop road drainage will be provided for the building addition requiring the use of non‐structural best management practices (BMP’s) via an environmental site design (ESD) strategy. 1‐2 separate ESD/SWM facilities anticipated.
Earthwork for new addition will require importing fill.
Relocate existing 8” water line around addition serving fire hydrants at this portion of the site.
Minor storm drain relocation of existing 10” drain located on south side of building.
Forest Conservation/ Afforestation as required.
Architectural:
Modernization of Existing Building:
The existing building will be renovated to provide updated systems and finishes. Minor relocation of walls or programs without expansion of spaces will be examined to improve program space functionality.
Existing interior walls to remain will be repaired, prepped, and painted.
Floor tile and wall base will be replaced.
Proposed Design Options ǀ 07
Carroll County Career & Technology Center ǀ 55 January 10, 2017
Ceiling tile and ceiling grid will be replaced.
New toilet room fixtures.
New kitchen equipment.
All areas of the building will be made accessible in accordance with the American’s with Disabilities Act (ADA).
Exterior windows will be replaced with commercial grade energy efficient models.
Exterior brick will be repointed.
Addition:
18,950 square feet will be added to the modernized existing building per the plans.
A new one‐story addition will be added to house the wait list programs from the Health, Information Technology, and Engineering clusters.
Structural:
Modernization of Existing Building:
Minor repairs as required.
New rooftop mechanical equipment is anticipated. Strengthening of the existing roof structure and/or introduction of structural steel dunnage for distribution of loads to existing load bearing elements will be examined.
Façade survey to evaluate need for veneer and lintel repairs.
Sub slab investigation of cracked floor slabs in areas of presumed settlement.
New Addition:
Roof shall be 1‐1/2”, 20 gauge galvanized type‐B metal deck on open web joist framing.
Floor and roof framing are anticipated to be supported on exterior masonry bearing walls and interior structural steel girders and columns.
Floor slab is anticipated to consist of a 4” thick, normal weight concrete slab‐on‐grade placed on vapor barrier, drainage course and properly prepared sub‐grade.
Foundations are assumed to be conventional continuous and isolated spread footings.
Kitchen:
New larger cooler/freezer to serve program needs.
Install demonstration kitchen station.
Proposed Design Options ǀ 07
Carroll County Career & Technology Center ǀ 56 January 10, 2017
Mechanical:
New HVAC system throughout the entire building and addition including new central plant, new distribution system, and new terminal end units. Refer to mechanical system recommendations at the end of this section.
Plumbing:
Replacement of plumbing piping systems.
New plumbing fixtures that meet ADA requirements and are water‐conserving type.
Upgraded gas service.
Electrical:
Upgraded electrical service to 4,000 Amps (currently 3,000 Amp service).
New electrical distribution system including replaced switchboard.
New natural gas emergency generator.
New light fixtures throughout the building.
New telecommunications systems throughout the building.
New security system and security camera system.
Proposed Design Options ǀ 07
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OPTION A: Partial Modernization Site Plan
Proposed Design Options ǀ 07
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OPTION A: Partial Modernization Upper Floor Plan
Proposed Design Options ǀ 07
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OPTION A: Partial Modernization Lower Floor Plan
Proposed Design Options ǀ 07
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Option B: Modernization
Modernization (Option B) includes renovation of the existing building to bring the entire building into conformance with current building and life safety codes and reconfiguration of the spaces to better accommodate the proposed program. It will also include 91,185 sf in additions to be in compliance with the proposed program. Existing detached building for auto collision repair program will be demolished. Maintaining building occupancy and operation will require a multi‐phase construction process.
Advantages:
Building:
Accommodates the enrollment of wait list programs.
Enlarges space sizes to the extent indicated in the full building program.
Revises adjacencies of programs as indicated in the full building program.
Improves exterior appearance of the building with new additions.
Improves energy efficiency of building by locating several programs in additions with energy efficient envelope designs.
All programs are housed in one building.
Construction and auto yards are relocated to a more concealed location.
Create a better quality learning environment.
Site:
Relocatable classrooms are no longer required and can be relocated/demolished as desired.
No loss of play fields.
Disadvantages:
Building:
Reuse of existing building does offer some limitations on the shape and location of programs.
Exterior of building is not fully updated, so some portions remain energy inefficient.
Phased renovation of existing building extends construction time compared to construction of a replacement building on an adjacent site.
Proposed Design Options ǀ 07
Carroll County Career & Technology Center ǀ 61 January 10, 2017
Construction of additions in contact with the existing building will provide some disruption to typical building operations.
Site:
Additions disrupt continuous loop road, which will require changes in operations by CCCTC and Westminster High School. At WHS, a portion of widened road is requested to resolve the new operations issues.
Approx. 65 parking spaces are lost due to the additions. If these parking spaces need to be replaced, a cost will be incurred.
Proposed Design Options ǀ 07
Carroll County Career & Technology Center ǀ 62 January 10, 2017
Option B
Anticipated Scope of Work:
Site:
3‐5 separate ESD/SWM facilities anticipated to treat roof drainage and paved surfaces.
Demo portion of parking lot serving CCCTC; Resurface remaining portion.
Create “T” style turnaround for fire trucks where loop road is closed by new building addition.
Widen access road by one lane to the west of CCCTC.
Relocate storage shed located at southeast side of building.
Demo automotive repair building; surrounding area to be resurfaced or made pervious with plantings as determined by stormwater management design.
Create a connection between existing Westminster High School parking lots north of CCCTC to create a continuous loop.
Relocate/demolish relocatable classrooms.
Relocate existing 8” water line around addition serving fire hydrants at this portion of the site.
Minor storm drain relocation of existing 10” drain located on south side of building.
Earthwork for southwest addition will require importing fill.
New Stormwater Management will be provided for the building addition requiring the use of non‐structural best management practices (BMP’s) via an environmental site design (ESD) strategy.
Forest Conservation/ Afforestation as required.
Architectural:
Modernization of Existing Building to Remain:
The existing building will be fully renovated to provide updated systems and finishes and spaces will be reorganized.
Existing interior walls to remain will be repaired, prepped, and painted.
Floor tile, wall tile, and wall base will be replaced.
Ceiling tile and ceiling grid will be replaced.
New toilet room fixtures.
New casework.
Exterior doors, hardware, and frames will be replaced.
Exterior windows will be replaced with commercial grade energy efficient models.
Proposed Design Options ǀ 07
Carroll County Career & Technology Center ǀ 63 January 10, 2017
All areas of the building will be made accessible in accordance with the American’s with Disabilities Act (ADA).
Exterior brick will be repointed.
New kitchen equipment.
Addition:
81,074 square feet will be constructed in five additions to meet the proposed program that cannot be accommodated in the renovated portion of the building.
Structural:
Modernization of Existing Building:
Minor repairs as required.
New rooftop mechanical equipment is anticipated. Strengthening of the existing roof structure and/or introduction of structural steel dunnage for distribution of loads to existing load bearing elements will be examined.
Façade survey to evaluate need for veneer and lintel repairs.
Sub slab investigation of cracked floor slabs in areas of presumed settlement.
Reinforcement/repouring of slabs as required where changing program locations create new loads on existing floor slabs.
New Additions:
Roof shall be 1‐1/2”, 20 gauge galvanized type‐B metal deck on open web joist framing.
Floor and roof framing are anticipated to be supported on exterior masonry bearing walls and interior structural steel girders and columns.
Floor slab is anticipated to consist of a 4” thick, normal weight concrete slab‐on‐grade placed on vapor barrier, drainage course and properly prepared sub‐grade.
Mechanical:
New HVAC system throughout the entire building including new central plant, new distribution system, and new terminal end units. Refer to mechanical system recommendations at the end of this section.
Plumbing:
Replacement of plumbing piping systems.
New plumbing fixtures that meet ADA requirements and are water‐conserving type.
Proposed Design Options ǀ 07
Carroll County Career & Technology Center ǀ 64 January 10, 2017
Relocation of existing gas service affected by northwest addition.
Electrical:
Upgraded electrical service to 4,000 Amps (currently 3,000 Amp service).
New electrical distribution system.
New emergency generator (if it is determined all optional loads are desired to be connected to the emergency circuit).
New light fixtures throughout the building.
New telecommunications systems throughout the building.
New security system and security camera system.
Proposed Design Options ǀ 07
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OPTION B: Modernization/ Partial Replacement Site Plan
Proposed Design Options ǀ 07
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OPTION B: Modernization/ Partial Replacement Upper Floor Plan
Proposed Design Options ǀ 07
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OPTION B: Modernization/ Partial Replacement Lower Floor Plan
Proposed Design Options ǀ 07
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Option C: Replacement on Existing Campus
Replacement (Option C) includes a design of a new two‐story facility on the existing campus to be in compliance with the proposed program, including square footage and proper spatial and educational relationships. The existing building will remain operational during construction of the new building and will be demolished when the new building is completed. The site design will address traffic patterns, parking, and replacement athletic fields at the location of existing building to be demolished. The Community Media Center will be replaced in this option to provide space for the relocated athletic fields and will be constructed as part of the new building.
Advantages:
Building:
Accommodates the enrollment of wait list programs.
Space sizes designed to the extent indicated in the full building program.
Creates proper adjacencies of programs as indicated in the full building program.
Improved exterior appearance of the building.
Energy efficient building created by locating all programs in new construction with energy efficient envelope designs.
All programs are housed in one building.
Construction and auto yards are located in a concealed location.
Instruction is not interrupted because the existing building remains in operation while the new building is constructed.
Provides natural daylight to each regularly occupied space.
Provides ADA accessibility within the building and at all entrances.
Creates new community media center adjacent to school for shared use.
Site:
Relocatables are no longer required and can be relocated/demolished as desired.
Creates new, improved play fields.
Earthwork does not require fill. Site is generally balanced.
Proposed Design Options ǀ 07
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Disadvantages:
Building:
Cost of demolition of existing building is required.
Site:
Loss of play fields during the construction period.
Retaining walls and regrading are required to construct new play fields.
Increased traffic on Hook Road for access to new building. Traffic studies will be conducted and site will be studied to look at possibility to connect an access drive to new school between Westminster High School and new play fields.
Proposed Design Options ǀ 07
Carroll County Career & Technology Center ǀ 70 January 10, 2017
Option C
Anticipated Scope of Work:
Site:
New campus loop road/fire lane including new bus loop.
New parking lot for approximately 216 vehicles including 14 ADA parking spaces.
Demolish existing parking lot and portion of loop road for new fields.
New play field complex at location of existing building.
New retaining wall along play fields west boundary.
New Stormwater Management will be provided requiring the use of non‐structural best management practices (BMP’s) via an environmental site design (ESD) strategy.
Relocatable classrooms will be removed from the site.
New 8” sanitary sewer (existing will be removed).
Relocation of sewer line that runs through existing play fields.
New water line connected to main in Washington Road.
10‐12 separate ESD/SWM facilities anticipated to treat roof drainage and paved surfaces.
Forest Conservation/ Afforestation as required.
Architectural:
New Building:
A new two‐story building will be constructed per the plans with all new components.
Demolish existing community media center; Replace with new Community Media Center adjacent to new CCCTC building.
Existing building is demolished.
Structural:
New Building:
Roof shall be 1‐1/2”, 20 gauge galvanized type‐B metal deck on open web joist framing.
Upper level floor framing is anticipated to consist of 3‐1/4” lightweight concrete slab on 3”, 20
gauge composite metal deck (6‐1/4” total thickness) on composite structural steel filler beams
and girders.
Floor and roof framing are anticipated to be supported on exterior masonry bearing walls and
interior structural steel girders and columns.
Proposed Design Options ǀ 07
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Lower level slab is anticipated to consist of a 5” thick, normal weight concrete slab‐on‐grade
placed on vapor barrier, drainage course and properly prepared sub‐grade.
Foundations are assumed to be conventional continuous and isolated spread footings.
Mechanical:
New HVAC system including central plant, distribution system, and terminal end units. Refer to mechanical system recommendations at the end of this section.
Plumbing:
New plumbing piping systems.
New plumbing fixtures that meet ADA requirements and are water‐conserving type.
New fire protection system including water storage tank and fire pump.
New gas service.
Electrical:
New electrical service.
New electrical distribution system.
New emergency generator.
New light fixtures.
New fire alarm and security systems.
New telecommunications systems.
Proposed Design Options ǀ 07
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OPTION C: New Building Site Plan
Proposed Design Options ǀ 07
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OPTION C: New Building First Floor Plan
Proposed Design Options ǀ 07
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OPTION C: New Building Second Floor Plan
Proposed Design Options ǀ 07
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Option D: Replacement on an Undeveloped Site
Replacement Offsite (Option D) includes a design of a new two‐story facility to be in compliance with the proposed program, including square footage and proper spatial and educational relationships. This option will be constructed on a site to be determined. The existing building will remain operational during construction of the new building and the building will be vacated when the new building is completed, leaving it available for future use. The new site design will optimize traffic patterns, parking, and stormwater management at the new site.
Advantages:
Building:
Accommodates the enrollment of wait list programs.
Space sizes designed to the extent indicated in the full building program.
Creates proper adjacencies of programs as indicated in the full building program.
Improved exterior appearance of the building.
Energy efficient building created by locating all programs in new construction with energy efficient envelope designs.
All programs are housed in one building.
Construction and auto yards are located in a concealed location.
Instruction is not interrupted because the existing building remains in operation while the new building is constructed.
Provides natural daylight to each regularly occupied space.
Provides ADA accessibility within the building and at all entrances.
Existing Community Media Center remains.
Site:
Relocatables are no longer required.
Existing play fields remain.
Proposed Design Options ǀ 07
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Disadvantages:
Building:
CCCTC is no longer on same campus as Westminster High School.
Proposed Design Options ǀ 07
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MECHANICAL SYSTEM
RECOMMENDATIONS
General
For all options the proposed HVAC Systems is a high
efficiency conventional four‐pipe Central
Heating/Cooling Distribution System, serving a four‐
pipe fan coil unit and/or air handling units for
shop/lab areas. Four‐pipe fan‐coil units shall be
used in conjunction with a decoupled dedicated
outdoor air system (DOAS) with integral heat
recovery for ventilation and air requirements.
The Office/Administration Area, which functions
twelve (12) months a year, and/or during non‐
educational times shall be zoned such that it can
operate independently from the rest of the school.
All other areas shall be separately zoned based on
use and function. Each shop and/or lab area will be
independently zoned.
Under Option A and B a complete replacement of
the existing HVAC systems is recommended. The
primary heating source is recommended to be
changed from electric resistance to natural gas.
Additionally under these two (2) options a hybrid
geothermal, central heating and cooling plant can
be considered if the geothermal heat exchanger can
be located in the existing play fields behind the
building. For Option C, a geothermal system will not
be feasible as a result of insufficient site area to
locate the earth heat exchanger. For option D, a
geothermal system may be possible depending on
the site selected.
For all options, based on the type of facility with
unique program requirements (Technical Shops and
Labs) independent room HVAC type systems and
equipment will be required for most spaces.
The Mechanical Systems shall include all work
associated within the building of Heating,
Ventilating, Air Conditioning (HVAC), and Plumbing
Systems. These systems shall extend to 5 feet
beyond the building wall. The Mechanical Systems,
in concert with the Architectural considerations, are
intended to create spaces that are flexible,
functional, energy efficient, and respond to the
needs of this facility.
Within the envelope of the new facility, the proper
heating, cooling, ventilation, air exchanges, and
Automatic Temperature Control/Energy
Management Systems shall be provided for all
spaces to create the appropriate thermal
environment. Stairwells shall be provided with heat
only. All areas shall be provided with heating,
ventilation, and air conditioning. The HVAC and
related Mechanical Systems shall not only be
functional and responsive to the need, but shall be
simple, reliable, durable, maintainable, and easily
accessible. The HVAC System utilizes energy
conservation techniques to the greatest extent
possible, while maintaining comfortable control. All
HVAC components shall be capable of a complete
override from the Energy Management System.
Heating and Cooling Systems and their associated
controls shall be designed and zoned to enable the
building to operate at less than full occupancy
without conditioning the entire building.
The Mechanical Systems shall be designed to
exceed ASHRAE Standard 90.1‐2013 in an effort to
achieve LEED Silver Certification. Sustainable design
guidelines such as ANSI/ASHRAE/USGBC/IES
Standard ASHRAE Advanced Energy Design Guide
for K‐12 School Buildings shall be resources used to
exceed the minimum energy performance
requirements of ASHRAE 90.1‐2013
Sub system monitoring of gas, electric (HVAC,
lighting plug loads, kitchen) and water shall be
considered and could be bid as an add alternate.
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The Mechanical Systems including plumbing
systems shall be designed in accordance with
ASHRAE Standards, International Mechanical and
Building Codes, NFPA, the International Plumbing
Code, County Code Requirements, and IAC
Standards.
Heating System
The proposed Heating System is hot water. The
building shall be heated by means of a Hot Water
Circulating System servicing hot water heating coils
located in air handling units, fan coil units,
baseboard radiation, unit heaters, and convectors.
The boiler’s fuel source shall be natural gas.
Base‐mounted end suction or horizontal split case
distribution system centrifugal pumps, located in a
mechanical space, shall circulate the required
quantities of hot water, by piping systems, to air
handling units, fan‐coil units and miscellaneous
terminal heating units. A redundant circulating
pump shall serve as a back‐up to the lead circulating
pump.
The heating water loop shall be variable flow and
shall provide the necessary low temperature (140°F
maximum) hot water to air handling unit coils, unit
heaters, fan‐coil units, baseboard radiation, and
miscellaneous terminal heating units. The heating
water pump(s) shall utilize a variable frequency
drive to vary pump speed based on the system's
differential pressure. The system differential
pressure operating set point shall be automatically
reset based on analyzing all control valve positions.
The heating water loop supply temperature shall
be reset based on outside air temperature.
Constant hot water circulation by means of high
efficiency ECM motor type centrifugal in‐line
circulating pumps shall provide the necessary freeze
protection of air handling unit preheat coils. A
redundant circulating pump shall serve as a back‐up
to the lead circulating pumps.
Heating water pumps shall be trimmed with flexible
connectors, suction diffusers (strainers for in‐line
pumps), multipurpose valves, isolation valves,
pressure gauges and flow meters.
Generation equipment shall include multiple high
efficiency (90%‐95% efficiency) condensing type fire
tube hot water boilers (i.e., Fulton Endura, AERCO
Benchmark, Cleaver Brooks Clearfire) sized equally
for the total heating capacity. These boilers shall
be located in the Boiler Room.
Water expansion and air removal devices shall be
provided in the Primary Heating Water System.
Water pressure regulators located downstream of
backflow preventers shall provide the make‐up
water requirements. All makeup water usage shall
be metered and monitored through the EMS.
Chemical Treatment Systems shall be provided for
the Hot Water Circulating System. Hot Water
Heating System piping shall be Schedule 40 Black
Steel and insulated in accordance with ASHRAE
Standards. The Heating System shall operate
automatically whenever the outside air
temperatures are 65 degrees or less.
Cooling System
The building shall be cooled by means of a Central
Chiller Plant with chilled Water Circulating System
serving chilled water coils located in air handling
units and fan coil units. Chilled water shall be
generated by two (2) primary high efficiency,
variable speed compressor(s), water cooled
centrifugal type chillers. The chillers shall use an
environmentally safe refrigerant in accordance with
The Clean Air Act. An additional, small capacity
water cooled heat recovery, heat pump type chiller
shall be considered to simultaneously generate
chilled water and heating water for
dehumidification purposes or during moderate
weather conditions. Each chiller will be provided
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with a variable speed primary chilled water pump to
track the secondary flow rate. Primary pumps shall
be base mounted end suction type.
Secondary distribution pumps shall be
base‐mounted horizontal split case centrifugal type,
located in the Mechanical Room, shall circulate the
required quantities of chilled water, by piping
systems, to air handling unit and fan coil unit
cooling coils. A redundant circulating pump shall
serve as a back‐up to the lead circulating pump.
The chilled water pump shall utilize a variable speed
drive and the chilled water plant shall operate as a
variable primary flow system to maintain a
minimum system differential pressure set point.
This operating set point shall be automatically reset
based on analyzing control valve positions. Flow
meters for each chiller shall maintain minimum
chilled water flow through the chiller(s).
The capacity and part load performance of the
chiller(s) shall be selected to precisely and
efficiently track the building load based on the
hour‐by‐hour building load requirements and shall
be capable of a high turn down ratio. Two (2)
chillers shall be equal in capacity while the third
heat pump chiller if used shall be less in capacity
and sized for the minimum part load condition
and/or reheat requirement.
A multiple cell induced air cooling tower associated
with each of the larger primary chillers shall utilize a
variable speed drive, ultra‐low sound fans to reject
heat to the atmospheric heat sink. The heat pump
chiller shall utilize a plate heat exchanger so as to
have the ability to reject heat to the cooling tower
or the heating water loop. A remote sump shall be
located in the mechanical room shall be provided
for freeze protection while providing heat rejection
capability for mechanical cooling whenever outdoor
air temperatures are above 50°F during the winter
season. A flat plate and frame type heat exchanger
shall be installed in the secondary loop (side car
arrangement) to generate chilled water (water
economizer) during low outdoor ambient conditions
when mechanical cooling is required within the
building.
Each chiller shall be provided with a condenser
water pump. Condenser water pumps shall be
base‐mounted end suction centrifugal type and be
located in the Mechanical Equipment Room. Chilled
water and condenser water pumps shall be
trimmed with flexible connectors, suction diffusers,
multipurpose valves, isolation valves, pressure
gauges, and flow meters.
Water expansion and air removal devices shall be
provided in the Chilled Water System. Water
pressure regulators located downstream of
backflow preventers shall provide the make‐up
water requirements for each system. Makeup water
usage for the chilled water and condenser systems
shall be independently metered and monitored
through the EMS. Independent Chemical Treatment
Systems shall be provided for the chilled water and
condenser systems.
Chilled water piping shall be welded Schedule 40
Black Steel and shall be insulated in accordance
with ASHRAE Requirements. Condenser water
piping shall be Schedule 40 Galvanized Steel with
mechanical couplings. Condenser water piping shall
be insulated. The Chiller System (i.e., mechanical
cooling) shall automatically operate whenever
outside air temperatures are above 50 degrees F.
Air Distribution Systems
Classrooms
A Four‐Pipe Fan‐Coil Unit System with Dedicated
Outdoor Air System (DOAS) shall serve the office
spaces and classroom areas. Air handling systems
shall serve assembly type spaces, (Dining) and all
Technical Shop and Lab spaces.
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Individual fan‐coil units with ducted supply air
system to ceiling supply air diffusers shall be
provided for each room. These units shall be 100%
recirculating air type with heating and cooling coils
(i.e. 4‐pipe) controlled to maintain the desired
indoor temperature conditions (i.e. sensible heating
and cooling only).
Heat Recovery Ventilation Air Units (100% outside
air) shall be used as part of the Dedicated Outdoor
Air System (DOAS) to dehumidify, temper and heat
ventilation air to a neutral air temperature (70°F).
These units shall provide the minimum amount of
outside air for ventilation as determined by the
requirements set forth by ASHRAE Standard 62, The
International Mechanical Code, the Educational
Specifications and the makeup air requirements to
maintain a slight positive building pressure. This
conditioned/tempered outside air shall be directly
injected into each classroom and/or office space.
Relief air (used outdoor air) shall be brought back to
the heat recovery unit for energy reclamation via a
ducted return air system, then discharged to the
outside. Multiple heat recovery devices inside
these units (heat wheels, flat plate heat exchangers)
shall be employed to provide the necessary
preconditioning (sensible and latent energy) and
free reheat (sensible energy) of outside air.
Additionally these units shall be equipped with a
supply fan, exhaust/relief fan, filters,
cooling/dehumidification coil, and heating coil. The
heating and cooling medium shall be provided by
the building’s central cooling and heating plant.
Tech Shops and Labs
Independent air handling units shall be provided for
each shop or lab areas. Air handling systems shall
be designed to provide the required amount of
ventilation, filtration and make up air required for
each unique space. Supplemental unit heaters shall
be located at overhead doors. Heat recovery and
specialized local dilution and source capture
exhaust systems shall be provided to maximize
indoor air quality.
Office Administration
The Office/Administration area shall be provided
with space conditioning by a Variable Refrigerant
Flow (VRF) heat pump system utilizing an air cooled
condensing unit with variable speed/inverter driven
compressors. Ductless ceiling cassette type indoor
fan coil units with independent thermostatic
controls are proposed for each space. A Dedicated
Outdoor Air System (DOAS) unit shall be a packaged
Direct Expansion Rooftop Unit with a gas furnace
for heat and utilize a heat recovery wheel.
BUILDING AUTOMATIC TEMPERATURE
CONTROLS/ ENERGY MANAGEMENT SYSTEM
It is recommended that the building be provided
with a BACnet Certified Automation System and be
tied into the existing Johnson Metasys County
Energy Management System. It is recommended
that the system have full direct digital controls,
including space terminal unit controls, which is
consistent with the County Standard. All controls
shall be electric/electronic actuation. All control and
monitoring points shall be consistent with the
County’s current Standards and shall be reviewed
with the Facilities Management Department during
Design.
Automatic Temperature Controls shall be capable of
operating per the sequence of operation, including
when the Energy Management System is manually
overridden.
The Basic Design Criteria shall be as follows:
1. Cooling Mode:
Outdoor Temperature: 95°F DB, 78°F WB
Indoor Temperature: 75°F DB, 65% RH or less
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2. Heating Mode: Outdoor Temperature: 10°F DB Indoor Temperature: 70°F DB 3. Chilled Water System (at 95 deg F Ambient): 44°F Supply Water Temperature 58°F Return Water Temperature 4. Heating Water System (at 10 deg F
Ambient): 140°F Supply Water Temperature 120°F Return Water Temperature 5. Ventilation Rates (ASHRAE Standard 62): Classrooms:
10 CFM per person .12 CFM per sq. ft. Offices: 5 CFM per person .06 CFM per sq. ft. Shop Areas (minimum): 10 CFM per person .18 CFM per sq. ft.
The building central heating system shall be
energized to operate whenever outside air
temperatures are 65°F or less. When indexed on,
the distribution pump shall be energized and vary
its flow through the variable speed controller to
maintain its system differential pressure set‐point.
The differential set point shall automatically be
reset based on analyzing the positioning of all
heating control valves.
Through integral sequencing software by the boiler
manufacturer the boilers shall be staged in lead‐lag
and rotational fashion to maintain system supply
water set‐point. The heating water temperature
supply shall be reset (linear type) based on outside
air temperature.
The building central chilled water system shall be
energized to operate whenever outside air
temperatures are 50 deg F or above. The chilled
water system shall be variable flow where the
primary and secondary system pumps shall vary in
speed to maintain the system differential pressure
set point. This set point shall be automatically reset
based on analyzing all the chilled water control
valve positions. A flow meter for each chiller shall
control its pump variable speed drive to maintain
minimum flow through the chiller(s). When
activated, the chillers and its associated chilled
water pumps shall be energized in lead‐lag fashion.
The cooling tower(s) and condenser water pump(s)
shall be energized when their associated chiller is
energized. The condenser water supply
temperature shall be reset based on outdoor air
wet and dry bulb conditions.
The chiller shall be controlled through its internal
control panel to maintain discharge evaporator
water temperatures.
For Single Zone Variable Volume Air Handling Units,
a room temperature sensor shall modulate the
associated air handling units’ cooling coil valve and
outside air economizer controls to provide the
necessary cooling. When the mixed air temperature
falls below its set point the supply duct temperature
sensor modulates the unit’s hot water preheat coil
valve to maintain 55°F temperature off the coil. If
heat is required by the space, the space
temperature sensor shall modulate the unit’s
heating coil valve. Preheat coil circulating pumps
shall be energized whenever the outside air
temperature falls below 40°F. Constant volume air
handling units shall be provided with a heat
recovery device to precondition the outside air
(sensible and latent heat) and a heat recovery
device with face and bypass damper control to
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provide free reheat (sensible heat) when operating
in a dehumidification/cooling mode. Supply and
return fans shall be provided with variable speed
drives and shall vary in fan speed to match the
space load.
All air handling units shall be provided with safety
features such as low limit control, freeze stat,
supply and return air smoke detectors, and high
static pressure sensors. All air handling units shall
be provided with energy conservation features such
as economizer cycles, night setback, and morning
warm‐up cycles of operation. Space carbon dioxide
sensors shall be used for control of outdoor air
(demand controlled ventilation or DCV) for high
occupancy spaces.
Space relative humidity sensors shall be used
throughout the building and shall automatically
index the dehumidification control mode if its
maximum set point condition is reached.
Supply air discharge air temperature set‐points shall
be reset based on the space within the zone
requiring the greatest cooling.
Fan‐Coil Units shall be controlled by room
temperature sensors. Cooling coil and heating coil
control valves shall modulate to maintain room
temperature set‐point.
Dedicated outdoor air units shall provide 100%
outside air to individual spaces. An enthalpy
(sensible and latent heat) heat recovery wheel shall
pre‐condition the outside air stream. A heating or
cooling/dehumidification coil shall heat or sub‐
dehumidify the outside air stream. When operating
in a dehumidification mode, a reheat heat
exchanger (typically a plate heat exchanger) shall
provide the necessary free reheat (sensible heat) to
prevent sub‐cooling the spaces while enhancing the
efficiency of the heat wheel. A face and bypass
damper control shall be provided for the reheat
heat recovery unit and a variable speed motor shall
control the enthalpy heat recovery wheel. The heat
wheel shall be stopped during the economizer
outside air conditions and/or for frost control. Air
flow measuring shall be utilized to monitor the
supply, return, relief and outside air systems.
PLUMBING
General
A complete system of plumbing shall be provided
throughout the building to comply with the
requirements set forth in the program and installed
in strict accord with all applicable codes and
regulations, including ADA.
The plumbing systems shall consist of but not be
limited to:
Domestic Cold Water
Domestic Hot Water with Recirculation
Sanitary Drainage and Vent
Storm Water Collection including Footing
Ground Water Collection
Natural Gas
Fire Protection
All plumbing fixtures shall be included and shall be
good commercial grade of institutional quality.
Water closets and urinals shall be flush valve,
water‐conserving, LEED compliant type. Water
closets shall be floor‐mounted type. Faucets for
lavatories shall be the self‐metering types.
Handicapped fixtures shall comply with ADA
Requirements.
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Water Service
Reuse of the existing incoming water service
(Option A and B) or a new incoming water service
(Option C and D) shall be required for domestic
water and fire protection systems. New hot and
cold water shall be extended to and serve the
fixtures and equipment as required. All domestic
water piping shall be copper Type L with wrought
copper fittings and lead‐free 95‐5 solder. All water
piping shall be insulated with the exception of
non‐handicapped final branch run‐outs for
connection to fixtures/equipment. Backflow
preventers and vacuum breakers shall be provided
to prevent back siphonage and contamination of
the potable water system. Freeze proof wall
hydrants shall be located every 150 feet along the
building's perimeter. Hose bibs in concealed boxes
shall be located in gang toilet rooms, kitchen areas
which require wash‐down, and mechanical
equipment rooms.
A minimum of two gas fired high
efficiency/condensing type hot water heaters shall
be strategically located in the First Floor Mechanical
Room. A hot water storage tank shall be utilized if
required to meet building requirements. The entire
building shall receive 140 degree hot water. Fixtures
requiring 105 degree F hot water shall be equipped
with an ASSE rated temperature limiting device. A
hot water recirculating system with in‐line type
centrifugal pump shall be utilized.
Sanitary Drainage
A new sanitary drainage system serving the new
plumbing fixtures shall be sized per the
requirements of the American Society of Plumbing
Engineers, the County Plumbing Code, and the
International Plumbing Code.
Storm Water Drainage
A new storm water drain line shall be brought to a
point 5'‐0" from the building exterior wall (under
another Division). At this point and under this
Division, connection shall be made to the drainage
line and same shall be extended into the building
for distribution.
The Storm Water System shall be sized per the
requirements of the American Society of Plumbing
Engineers, and the International Plumbing Code.
Gas Service
A new (Option C and D) or upgrade existing gas
service (Option A and B) shall be provided for the
domestic hot water system requirements, comfort
heating requirements, kitchen equipment, dryers
and to serve the natural gas fired emergency
generator(s).
Sustainable Design Features
The following are minimum additional sustainable
design alternatives which shall be considered to
achieve LEED Silver Certification.
A rain water collection system is
recommended for the play field irrigation
system.
A condensate water collection system is
recommended to serve as makeup water
for the cooling tower system or be used for
irrigation if the rain water collection system
is implemented.
Metering and measurement with
verification plan is recommended to be
designed even if it is bid under an add
alternate. Sub‐meters shall be designed to
measure plug loads, lighting loads, HVAC
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loads, kitchen load, makeup water usage,
domestic hot water usage and natural gas
usage. An enhancement to this option is to
include a dashboard system.
Solar hot water heating system or heat
pump is recommended to heat or preheat
domestic hot water.
ELECTRICAL RECOMMENDATIONS
Electrical Service and Distribution System
The existing electric service of 3000 amps, 277/480
volts, three phase, four wires will be upgraded to
4000 Amps, 277/480 volts. The existing service
comes in underground to the existing pad‐mounted
enclosed transformer at the rear of the building. A
new electrical room space will be required, separate
from the mechanical room. New panelboards will
be located in dedicated utility rooms.
The electrical distribution will be at 277/480 volts,
three phase, four wires from a new main
switchboard to panelboards throughout the
building. The existing main switchboard will be
replaced. Dry type transformers will supply service
at 120/208 volts, three phase, four wires to
panelboards located throughout the building.
Mechanical equipment will be served at 277/480
volts and receptacles, office equipment and the
lighting will be served at 277/480 volts.
All receptacles will have stainless steel cover plates.
All receptacles will have a finish selected by the
Owner. Panelboards for general lighting and
receptacles and for computer receptacles will be
located in all areas of the new building to serve
local loads. Surge Protection Devices (SPDs) will be
provided at computer and life safety/standby
panelboards. The emergency generator will be
replaced with a natural gas generator and will need
to be located outside the building; or a new, larger,
dedicated generator room will need to be provided.
Lighting
Where new lighting is required, it will be designed
as follows: General lighting will be recessed 2' x 4'
LED troffers and conform to the latest energy code
IECC 2015. Lighting is a critical aspect of the Building
Design. The School will have a variety of lighting
design criteria for each “vision task”. The major
Lighting Design Criteria will include the following:
LIGHTING TASK
TARGET
ILLUMINATION
LEVELS
(Foot Candles)
Classrooms 50.0
Music Rooms 60.0
Offices/Administration
Areas
40.0
Work Rooms 40.0
Toilet Rooms 20.0
Exterior Pedestrian
Walkway
0.6
Exterior General
Parking
0.6
Exterior Vehicle Lanes 1.0
Exterior lighting will be provided to enhance the
security of the building and parking lots. Lighting
will be switched or scheduled on‐off by a time clock.
Site lighting will be high cutoff LED type luminaires.
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All light pole bases will extend 24" above finished
grade. Accent and sign lighting will be provided in
selected areas. Site lighting will be controlled by
perimeter building‐mounted lights and security
lights will be photocell controlled. Emergency
lighting will be provided throughout the path of
egress and in selected areas. LED exit lights with red
letters will be provided throughout the building.
Levels of illumination shall be as recommended by
the Illuminating Engineering Society of North
America and ASHRAE 90 Standards. All new light
switches will be installed at 48” AFF to the top of
device. New light switches will be provided to
replace existing switches installed above the
maximum ADA mounting height of 48” AFF.
Track lighting will be provided at selected display
areas. Interior corridor night security lighting will be
provided. Corridor lights will be controlled by key‐
type switches and occupancy sensors. Classroom
lights will be controlled by low voltage switches and
above ceiling room controllers. Switches will have
preset scenes to utilize the versatility of LED fixtures
and to ensure code compliance.
Fire Alarm System
The existing Edwards EST2 Fire Alarm System will be
expanded with a graphic annunciator at the main
building entrance and an automatic dialer will be
provided. The Fire Alarm System will also transmit
security alarm via the existing Auto‐Dialer. The Fire
Alarm System will meet all ADA requirements. The
Fire Alarm System will be designed to comply with
Local Authorities Having Jurisdiction, IBC 2000, and
NFPA. Strobe devices will be ceiling‐mounted
wherever practical (including Storage Rooms). Fire
Alarm audible device will be voice evacuation type
with pre‐programmed messages and override
microphone. The existing fire alarm panel
modifications include providing an additional power
supply and FACP control module in the existing
panel. New fire alarm power extender panels will
be provided in each area.
Security System
The existing Ademco Security System, located in the
Main Office, Health Suite, will be replaced. Motion
detectors will be located in all new rooms with
perimeter glass. Door contacts will be located on all
exterior doors.
Closed Circuit Television (CCTV) Security
Camera System
The existing Closed Circuit Television Security Camera System and VCR will be replaced with a new IP camera system and Web‐server.
Access Control
The existing Best Card Reader System will be reused with door controllers and magnetic stripe card readers provided at selected doors.
Video Network Cable Television System
A Cable Television System will be provided to serve monitors in all Classrooms, Administrative Offices, and other selected areas. The System shall be connected to an existing incoming Cable Television System, located in the Main Office. The System shall broadcast/display time, date, programming and other information. Main video trunk lines will be provided from the Main Office to each new data closet. The Video System will be wired for interactive two‐way distribution and will consist of broad‐band coaxial cabling (RG‐11u and RG‐6u). All components reach as splitters and line amplifiers will be provided.
Master Clocks
New system clocks will be provided in Common
Areas / Areas of Assembly and will be connected to
the existing Telecor Time Clock System.
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Voice Network – Telephone / Paging /
Intercom
Paging speakers and intercom stations will be provided in selected areas. Speakers will be provided in all corridors. All rooms shall have voice sets and speakers. The System shall be star‐wired and consist of Category 6E, or better, cabling for both telephone and public address. Telephone outlets and cables will be provided in the following areas: ● One (1) telephone outlet in each selected
room by the door.
● Two (2) outlets at each Office and
Administration Area work station/desk.
● One (1) outlet will be provided in other
selected areas.
A bell tone system will be provided. AI phone system will be provided at the Main Entrance for after‐hours calling of staff. Public Address Speakers will be located in hallways and large group activity areas. The existing Rauland Telecenter System will be expanded to serve the new areas. A 100 pair voice backbone will be installed between the new IDF’s and the existing MDF, located in Room 110.
Data Network
A new IDF room may be required to serve the newly renovated spaces. The five (5) existing IDF racks located throughout the school will need to be relocated due to the renovations. The Data Network will be star‐wired 1000 Base‐T and consist of Category 6E cabling. The System will provide all components for a complete operable LAN. It will provide access to the System WAN and internet access through T‐1 access to a County Server Site. A 12‐strand composite fiber optic backbone will be used to link the existing main MDF, located in Room 110, with each new IDF. Strategically located telecommunication hubs (IDF Rooms) will limit cabling lengths to 250 linear feet.
Data outlet plates will be conventional industry standard type plates. (Custom stainless steel outlet plates will not be used.) Data cable outlets and associated cables will be provided in the following areas: ● Four (4) data jacks for students will be
provided in each classroom. Student drops
will be 4’‐0” apart (Two (2) data jacks per
drop, plus one (1) quad‐receptacle).
● Two (2) data jacks for teachers (one front
and one rear of the classroom).
● Two (2) outlets at each office and
administration area work station/desk.
● Storage Rooms (over 100 SF) will be
provided with a voice and data drop.
General Communication Systems
All Systems will be in accordance with the MSDE
Maryland Public School Standards for
Telecommunications Distribution Systems, and the
Board of Education of Carroll County Technology
Plan. Voice, Video, and Data Distribution will be
provided in all areas. Spaces excluded are
restrooms, custodial closets, etc.
General Electrical Systems Standards
All systems and components will be designed in
accordance with the following:
● Carroll County Board of Education ‐ Educational Specifications for this project.
● Carroll County Educational Specifications for Science Laboratories.
● All applicable national, state, and local requirements.
● Maryland State Interagency Committee for Public School Construction Standards.
● Americans with Disabilities Act (ADA) Requirements.
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● American National Standards Institute (ANSI).
● Institute of Electrical & Electronic Engineers (IEEE).
● National Electrical Code (NEC), 2002.
● National Electrical Manufacturer’s Association (NEMA).
● National Electrical Safety Code (NESC).
● National Fire Protection Association (NFPA).
● Underwriters Laboratories (UL).
● International Building Code (IBC), 2000.
● Illuminating Engineering Society (IES).
● American Society of Testing and Materials (ASTM).
● American Society of Mechanical Engineers (ASME).
● Maryland Public School Standards for Telecommunications Distribution Systems, 2002.
● Maryland State Department of Education Science Facilities Design Guidelines, 1994.
● Maryland State Department of Education Technology Education Facility Guidelines.
Carroll County Career & Technology Center
APPENDIX
Appendix ǀ 08
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Appendix A:
Cost Estimate: Options A ‐ D
Appendix ǀ 08
Carroll County Career & Technology Center ǀ 89 January 10, 2017
Cost Estimate: Relocated Programs
Appendix ǀ 08
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Appendix B: Life Cycle Costs
Building 35 Year Life Cycle Costs
MEP SYSTEMS
Addition/ Renovation Options (Options A and B):
Under the addition/ renovation building options, all existing mechanical systems will be replaced in their
entirety. The conventional 4‐pipe heating and cooling system includes a new central heating and cooling plant
served by boilers and air cooled chillers. An alternate approach is to provide a hybrid geothermal system which
utilizes the earth as its heat exchanger and requires a smaller central plant. The existing building and associated
building envelope will be less efficient as compared to a new building. Therefore, the mechanical systems will be
less efficient since these existing physical condition limitations will increase energy consumption by mechanical
equipment, thus lowering the energy efficiency of the renovation/ addition option when compared to the new
building option.
New Building Option (Options C and D):
Under the new building option, conventional 4‐pipe and geothermal are analyzed.
Mechanical Life Cycle Costs:
Annual energy costs were developed utilizing computer modeling for both the new building option and the
renovation/ addition options. The annual operating and maintenance costs were then multiplied by 35 years to
provide a cost analysis for a 35 year life span. In addition, a 5 percent assumed interest rate and mechanical
construction costs are included in the life cycle cost calculation. A conventional 4‐pipe heating and cooling
system was analyzed for all building options.
Building Maintenance Life Cycle Costs:
The building maintenance/ replacement costs are the costs to maintain and replace windows, roofs, floor tile,
paint, carpet, ceramic tile, casework, ceiling tile, doors, window blinds, kitchen equipment, etc. as required over
the 35 year period. This does not include mechanical costs that are included above. Some of these materials will
have a longer life span than others and that estimated useful life was factored into the calculation for
replacement.
Appendix ǀ 08
Carroll County Career & Technology Center ǀ 91 January 10, 2017
Appendix B: Life Cycle Costs
The following is a summary of the 35‐year energy cost calculations.