Slayton Hill Road Reconstruction Presentation
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Transcript of Slayton Hill Road Reconstruction Presentation
Slayton Hill Road Reconstruction
Lebanon, NH
February 12, 2014
Slayton Hill Road ReconstructionCity of Lebanon, NH
Welcome and Introductions
• Greg Lewis – City Manager
� Ground Rules
• Paula Maville – Deputy City Manager
� Scenic Road Designation
• David McNamara – Fay, Spofford, & Thorndike
� Design Update
Slayton Hill Road ReconstructionCity of Lebanon, NH
Scenic Road Designation
• Declaration of Purpose:
• Slayton Hill Designated Scenic on 12/15/93
• Impacts to Right-of-Way
� 88% of stone walls between Dulac & 78 Slayton
� An additional 44% between 78 Slayton &
Dunsinaine
� 60% of trees (total length of project) will need to
be cleared
Slayton Hill Road ReconstructionCity of Lebanon, NH
Scenic Road Designation
• One of Two Processes to Undertake
� §134-5 Effect of Designation as Scenic Road
� Manager to obtain written consent of the Planning
Board after a Public Hearing
� §134-8 Rescission of Designation of Scenic Road
� Requires a petition of 10 Persons who are either voters
of the City or who own land which abuts the road
� Reports Solicited from the Planning Board and
Conservation Commission
� Public Hearing held by the City Council
Slayton Hill Road ReconstructionCity of Lebanon, NH
Meeting Objectives
• Update on status of project� Temporary repairs
� Complete
� Permanent reconstruction� Design Progress
� Next Steps
• Solicit feedback� Scenic Road Designation
� Present updated design progress
� Discuss potential property and edge of road impacts due to permanent improvements
Slayton Hill Road ReconstructionCity of Lebanon, NH
Existing Conditions
• Slayton Hill Road was built into a hillside
• Ledge and poorly drained soils
• Slayton Hill Road – Reconstructed in 2001/2002 timeframe
• Design was restricted by Scenic Road designation and limiting property impacts
• Culverts generally replaced with new ADS pipe of the same size
• Narrow/shallow swales and underdrains with limited armor in place along uphill side of road
• New Standards � Precipitation Data
� Storm Sizing
Slayton Hill Road ReconstructionCity of Lebanon, NH
Response – Short Term Repairs
• City forces
� Immediate repairs following July 2nd Storm (July)
� Temporary water main
� Roadway repairs to allow traffic
� Intermediate Term (Complete)
� Repair buried water main
� Widen road to allow minimum two lanes of traffic
� Temporary pavement course for winter maintenance
� Armor washed out ditches
� Additional culvert to divert flows in lower section
Slayton Hill Road ReconstructionCity of Lebanon, NH
Design
• Design Storm
� 100 year minimum
• Culvert sizing
� Slayton Hill Road
� Total of 22 cross culverts
– 10 are adequately sized
– 11 are undersized
– 1 new Culvert
� Dulac Street
� Total of 3 cross culverts
– 2 are undersized
– 1 new culvert (twin pipes)
Slayton Hill Road ReconstructionCity of Lebanon, NH
Culvert Sizing – Slayton Hill Road
AREA STATION EXISTING CULVERT SIZE PROPOSED CULVERT SIZE
1 Intersection w/ Dulac St 18” HDPE 24” RCP
2A 7+99 18” HDPE 24” RCP
2B 11+84 ----- 24” RCP
3 12+43 2.7-Ft x 2.6-Ft Concrete Box 4-Ft x 4-Ft Concrete Box
4 16+00 18” HDPE / 27.6 24” RCP
5 19+59 15” HDPE 15” RCP
6 20+85 15” HDPE 18” RCP
8 27+98 24” HDPE 24” RCP
9 29+38 18” HDPE 18” RCP
Replace CB with Headwall
10 33+82 30” HDPE 30” RCP
11 42+31 24” HDPE Twin 24” RCPs
AREA STATION EXISTING CULVERT SIZE PROPOSED CULVERT SIZE
12 56+21 18” HDPE 24” RCP
13 56+89 24” HDPE 24” RCP
14 61+11 18” HDPE 30” RCP
15 63+11 18” HDPE 24” RCP
16 66+52 24” HDPE 36” RCP
17 75+26 48” HDPE 6-ft x 4-ft Concrete Box
18 82+53 18” HDPE18” RCP
Replace CB with Headwall
19 85+99 18” HDPE18” RCP
Replace CB with Headwall
20 30” HDPE 30” RCP
21 3+72 15” HDPE 15” RCP
22 89+18 15” HDPE 15” RCP
Slayton Hill Road ReconstructionCity of Lebanon, NH
Culvert Sizing – Dulac Street
AREA STATION EXISTING CULVERT SIZE PROPOSED CULVERT SIZE
23A 202+50 12” HDPE Twin 18” RCPs
23C 206+50 ----- Twin 18” RCPs
23B 209+50 12” HDPE 24” RCP
Slayton Hill Road ReconstructionCity of Lebanon, NH
Design
• Ditches� Most proposed are V shaped,
1.5’ to 2.0’ deep, 3:1 sideslopes off the road, 2:1 back slopes to match existing ground
� Lower portion includes a 2’ wide flat bottom
� Slopes steeper than 10% will be stone lined
� Slopes flatter than 10% will be grass, with reinforced matting products
� Underdrains
Slayton Hill Road ReconstructionCity of Lebanon, NH
Design - Tributary Drainage Areas
Slayton Hill Road ReconstructionCity of Lebanon, NH
Slayton Hill Road Typical Section
Slayton Hill Road ReconstructionCity of Lebanon, NH
Slayton Hill Road – Sta. 0+00 to 21+50
(Dulac to #53)
Slayton Hill Road ReconstructionCity of Lebanon, NH
Retaining Wall #1
Slayton Hill Road ReconstructionCity of Lebanon, NH
Slayton Hill Road – Sta. 21+50 to 43+50
(#53 to #121)
Slayton Hill Road ReconstructionCity of Lebanon, NH
Profile Change
Slayton Hill Road ReconstructionCity of Lebanon, NH
Slayton Hill Road – Sta. 43+50 to 64+50
(#121 to #141)
Slayton Hill Road ReconstructionCity of Lebanon, NH
Slayton Hill Road – Sta. 64+50 to 86+00
(#141 to #183)
Slayton Hill Road ReconstructionCity of Lebanon, NH
RetainingWall #3
Slayton Hill Road ReconstructionCity of Lebanon, NH
Slayton Hill Road – Sta. 86+00 to
Dunsinane (#183 to Dunsinane)
Slayton Hill Road ReconstructionCity of Lebanon, NH
Dulac Street
Slayton Hill Road ReconstructionCity of Lebanon, NH
Dulac Street
Slayton Hill Road ReconstructionCity of Lebanon, NH
Dulac Street Typical Section
Slayton Hill Road ReconstructionCity of Lebanon, NH
Next Steps
• Continue Design� Meet individually with abutters
� Incorporate public comment
• Permitting� Coordination with relevant Local, State and Federal agencies
� Dredge and Fill Permit, Shoreland Protection, Alteration of Terrain
� Scenic Road Designation
• Final Design� Develop plans for bidding
� Contract book and specifications
• Advertise� Accept Contractor bids
• Construction
Slayton Hill Road ReconstructionCity of Lebanon, NH
Individual Meetings
• Purpose� Discuss direct impacts to individual properties
� Present ROW or easement acquisition offers
• Times� 12 PM to 8 PM windows
� Monday, March 3
� Wednesday, March 5
� Monday, March 10
� Wednesday, March 12
� 20 minutes each
� Sign up tonight with Tina
Slayton Hill Road ReconstructionCity of Lebanon, NH
ROW Process
• Follow NHDOT LPA/Federal Guidelines
• Permanent Impacts� Maintenance for drainage
� Retaining walls
• Temporary Impacts� Slope and clearing work
� Arborist
� Driveway tie-ins
• City to assess property values
• Compensation offer� Monetary compensation
Slayton Hill Road ReconstructionCity of Lebanon, NH
Construction
• Duration
� Major construction activities - one season, May to
November
� Final overlay, clean up work – Spring of 2015
• Traffic Management
� Full Access to houses, emergency vehicles at all times
� Road closures allowable July and August
� Minimum one-lane open during school year (7 AM to 9
AM and 3 PM to 5 PM)
Slayton Hill Road ReconstructionCity of Lebanon, NH
Timeline – Full Reconstruction
• Meet with Public, Walk-about, discuss impacts� September/October
• Final design� February - April
• Permitting� February - April
• Bid Project� May
• Construction� May - November 2014
Slayton Hill Road ReconstructionCity of Lebanon, NH
Individual Group Break Out
• Follow Up Questions� http://ask.lebnh.net/
• Contact Information� Greg Lewis, City Manager
� Phone: 603-448-4220
� Mike Lavalla, Director of Public Works� [email protected]
� Phone: 603-448-3112
� David McNamara, FST Project Manager� [email protected]
� Phone: 603-669-2000