Craig A. Smith & AssociatesTomography, Vacuum Excavation) 100% Base Map (3-D CAD) 60% Design Plans...

Craig A. Smith & AssociatesTHE NEXT GENERATION OF SUBSURFACE

UTILITY ENGINEERING

“THE CAS ADVANTAGE”

Craig A. Smith & Associates

• Florida Corporation since 1980

• 35 years of experience serving South Florida municipalities(Palm Beach County, Broward County & Miami-Dade County)

• Local South Florida firm

• 40± Professional, Technical & Administrative Personnel

• Primary Project & Client Focus – Public Utilities and Infrastructure

CRAIG A. SMITH & ASSOCIATES7/7/2015

CAS Project Design Process

Unified Design Process Yields Efficiency & Cost Savings: Records/As-Built Review

Topographic/Boundary Survey

Subsurface Utility Engineering (Sunshine One Call, 2-D EM & GPR, 3-D Radar Tomography, Vacuum Excavation)

100% Base Map (3-D CAD)

60% Design Plans at typical 30% Design Phase

Permitting

90% Design Plans

100% Design Plans ready for Construction


Subsurface Utility Engineering (SUE)

Traditional Base Map Development for Engineering Design: As-Built/Recording Drawing

2-D Ground Penetrating Radar (GPR) & Electromagnetic Designation (EM)

Vacuum Excavation (Potholing)

The “Next Generation” of Base Map Development for Engineering Design (The CAS Advantage):

3-D Radar Tomography (RT)


CRAIG A. SMITH & ASSOCIATES 7/7/2015

Traditional Subsurface Utility Engineering

Electromagnetic (EM) Designation of Toneable Buried Utilities

CAS Certified Utility Locators perform complete

electromagnetic designation of toneable facilities (DIP,

CIP, Steel, Copper, Metallic) throughout the project limits

to identify and catalog known existing facilities for survey

and inclusion of such facilities in the project base file.



2D Ground Penetrating Radar (GPR)

CAS Certified GPR Technicians perform complete ground

penetrating radar grid scanning throughout the project

limits to identify and catalog non-toneable facilities

(HDPE, PVC, ACP, RCP, FO) for survey and inclusion of

such facilities in the project base file.



Vacuum Excavation – “Potholing”

CAS Locate Technicians perform safe vacuum excavation

to positively identify and precisely locate existing facilities

as necessary to identify conflicts or provide precision

calibration for 3D Radar Tomography Scanning.


Subsurface Utility Engineering – “The CAS Advantage”

3D Radar Tomography - Overview

Three-dimensional Radar Tomography scanning of

project sites to provide precision location of known and

unclaimed underground facilities, providing for complete

and continuous x,y,z positioning of toneable and non-

toneable facilities, identification and location of

abandoned facilities and non-utility anomalies that could

interfere with design elements.



3D Radar Tomography - Capabilities

• Cross-Talking, multi-channel antenna array provides for precise

3-D positioning of targets into real-world coordinates

• Continuous location and depiction of subsurface elements

• Highly accurate geospatial imagery of subsurface utilities

(+/- 2” horizontally and +/- 6” vertically)

• Up to 5 acres scanned/day (depending on surface conditions)

• Generally very successful in scanning through sandy soils, gravel,

limestone, granite, asphalt, concrete and shale

• Highly effective locating subsurface utilities in South Florida with

proven results for over 10 years



3D Radar Tomography – Limiting Factors

Some inhibitors of radar include:

• Clay, muck, peat or other dense organic material

• Flowable fill

• High mineral content soils (i.e. caliche – hardened calcium)

• Saline groundwater (occasionally)

While these materials at times limit radar’s penetration ability, each

job site is unique. Pre-scan testing to insure success is done prior to

major mobilization.


Subsurface Utility Engineering 3D Radar Tomography

PROJECT: The WAVE - Fort Lauderdale: Comparative Analysis between traditional SUE & 3D-RT

Underground Facilities identified with Traditional SUE Methods by others



PROJECT: The WAVE - Fort Lauderdale: Comparative Analysis between traditional SUE & 3D-RT

Underground Facilities identified with 3DRT by CAS that were NOT PREVIOUSLY IDENTIFIED

CRAIG A. SMITH & ASSOCIATES

7/7/2015


Example of necessary potholes for a Project Area using Traditional SUE



Advantages & Benefits of 3D Radar Tomography in SUE

Example of necessary potholes for a Project Area using 3D-RT

Up to 90% Reduction in Required Vacuum Excavations (Potholes)




Traditional accepted variance for As-Builts Records Research

location of buried utility (plan view)

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area of probability




Traditional accepted variance for traditional SUE / Sunshine One Call utility markings


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area of probability




Traditional accepted variance for vacuum excavation + interpolated information


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area of probability

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Traditional accepted variance for vacuum excavation + interpolated information

area of probability

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Traditional accepted vertical variance for vacuum excavation + interpolated information

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Actual elevation ofburied utility


Interpolated location of buried utility




Traditional accepted vertical variance for vacuum excavation + interpolated information

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Interpolated location of buried utility

ACTUAL location of buried utility




3D Radar Tomography horizontal variances

Significant Increase in Horizontal Accuracy

+/- 2” Horizontal Accuracy

+/- 2” variance




3D Radar Tomography vertical variances

Significant Increase in Vertical Accuracy

+/- 6” Vertical Accuracy

buried utility

+/- 6” variance




Some text here

Reduction in Design Schedule Timeline




Sample Deliverables – Video of Tomographic 1” Image Slices




Sample Deliverables – Typical 3D Model




Potential Return on Investment Comparison

FHWA/Purdue University study documents a

$4.62 return on every $1 invested in Traditional SUE.

FDOT study documents a

$12.00 return on every $1 invested in 3-D Radar Tomography.


The WAVE – Modern Streetcar

Project Description:

Performed 3-D Radar Tomography scanning of 3.4 miles of project

corridor and provided complete subsurface model to assist in

development of utility relocation planning and establishment of new

utility locations.

Project Cost:

$264,000 (Phase 1A) & $350,000 (Phase 1B)


Example Project – Broward County

Fort Lauderdale Redevelopment




The Wave Project – Typical Civil 3D CADD Deliverable


Brickell CitiCentre


Performed 3-D Radar Tomography scanning providing 3-D modeling

of existing utility systems, subsurface soil strata identification and

model integration services comprehensive BIM process in advance of

project commencement to identify and address utility conflicts and

necessary relocations, preventing project delays for construction of

(3) 40 story towers and a six acre subterranean parking garage.

Project Cost:

$125,000


Example Project – Miami-Dade County

Miami Redevelopment


Flagler Memorial Bridge


Performed 3-D Radar Tomography (RT) scanning providing 3-D

modeling of existing utility systems, integration of existing utility

information with 3-D RT discovered utilities and generating a

complete subsurface model to assist in the utility relocation efforts

required for the bridge improvements.

Project Cost:

$164,000


Example Project – Palm Beach County

Bridge Replacement/Reconstruction


Port Everglades – Ft. Lauderdale


Performed complete Subsurface Utility Engineering services

including 3-D Radar Tomography scanning in advance of installation

of security gates, stationary cargo screening systems, security

cameras and remote intrusion warning systems. This allowed to

identify potential conflicts protecting existing facilities such as oil

and natural gas piping systems.

Project Cost:

$304,000



Security Enhancements


I-595 Reconstruction


Performed complete Subsurface Utility Engineering services

including 3-D Radar Tomography (RT) scanning in advance of

construction activities. 3-D RT imaging for more than 1 million

square feet of right-of-way in varied surface conditions was scanned

to identify potential conflicts between existing buried utilities and

numerous proposed bridge, column and sign foundations.

Project Cost:

$1.08 Million



Express Lanes Reconstruction


Camp Perry


Performed complete Subsurface Utility Engineering including 3-D

Radar Tomography (RT) scanning in advance of construction

activities. 3-D RT imaging of more than 300,000 square feet in varied

surface conditions to assist in identifying potential conflicts between

existing buried utilities and proposed infrastructure improvements.

Project Cost:

Classified


Example Project – Virginia

Central Intelligence Agency Training Facility



Example Projects – Nationwide

Broward County - SW 27th Ave & Broward Blvd.

Cummings – Broward County Courthouse

Port Everglades – Marathon Oil, Motiva Oil,

Handex Corporation

Fort Lauderdale International Airport

Hallandale Beach – Golden Isles Drive

Hallandale Beach – SE 14th Ave

Broward County/EAC - Pine Island Road

Palm Beach County – Okeechobee & Haverhill

Palm Beach County – WTP 9 North

Delray Beach – Venetian Drive

FPL – Miami Central Substation

Tampa Stormwater – Ybor City

Tampa General Hospital

FDOT D 7 - S.R.- 694 Gandy Blvd.

FDOT D 7 – Ulmerton Road

Craig A. Smith & AssociatesTomography, Vacuum Excavation) 100% Base Map (3-D CAD) 60% Design Plans...

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