Route 18 Widening Project
Abington – Weymouth | Project File No. 601630
Public Information Meeting
October 17, 2012 | 7:00pm
Weymouth High School
Route 18 Widening Project
Abington – W eymouth | Project File No. 601630
Route 18 Project Team
• MassDOT
• Prime Consultants
– Tetra Tech
– HNTB
• Specialty Subconsultants
– GZA GeoEnvironmental, Inc. (Soils/Geotechnical)
– Survey and Mapping Consultants (Mapping/State Highway Alt)
– HMMH (Noise)
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Route 18 Project Limits
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Route 18 Completed Projects
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Route 18 Completed Projects
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Route 18 Existing Issues
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Route 18 Congestion
Cut-Through Traffic on Local Streets
Intersection Safety and Sub-Optimal Operation
Deficient Pedestrian Accommodation
Deficient Bicycle Accommodation
Structurally Obsolete Bridge over Commuter Rail
Drainage
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Route 18 Existing Issues | Project Goals
• Route 18 Congestion | Relieve Congestion
• Cut-Through Traffic on Local Streets | Reduce Cut-Throughs
• Intersection Safety and Sub-Optimal Operation | Improve Inter. Safety
• Deficient Pedestrian Accommodation | Improve Ped. Accom.
• Deficient Bicycle Accommodation | Improve Bike Accom.
• Structurally Obsolete Bridge over Commuter Rail | Replace Bridge
• Drainage | Reduce Flooding
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Existing Average
Week Day Daily Traffic (AWDT)
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Existing AM Peak Hour
Traffic Volumes
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Existing PM Peak Hour
Traffic Volumes
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Future 2030 AM Peak Hour
Traffic Volumes
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Future 2030 PM Peak Hour
Traffic Volumes
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Existing AM Peak Hour
Level of Service (LOS)
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Future 2030 AM Peak Hour LOS
With Completed Project
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Existing PM Peak Hour
Level of Service (LOS)
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Future 2030 PM Peak Hour LOS
With Completed Project
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Proposed Project Construction
• Widen Route 18
– (2) 11.5’ Travel Lanes Each Direction
– (1) 5.0’ Shoulder Each Direction
– (1) 5.5’ Sidewalk Each Direction
• Reconstruct Signalized Intersections
– Pond Street / Route 58
– Shea Drive
• Replace Bridge over Commuter Rail
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Proposed Project Construction (cont.)
• Retrofit Completed Intersections for Optimal Operation
and Safety
– Randolph Street (Route 139)
– Pond Street / Pleasant Street
– West Street / Middle Street
• Stormwater Mitigation
• Wetland Mitigation
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Route 18 Typical Section
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Pond Street / Route 58 Intersection
Trotter Rd
Route 18 – Main St
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Coordination with Proposed Parkway
Route 18 – Main St
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Route 18 Bridge Replacement
Route 18 – Main St
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Route 18 – Main St
Shea Dr
Shea Drive / Route 18 Intersection
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Utility Work
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Water Service Valves Reset – All Properties
Hydrant Relocations
Utility Poles Relocated to Back of Proposed Sidewalk
Radio Operated Emergency Call Boxes Installed
Gas Main Replaced – Specific Locations
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Stormwater System
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New Catch Basins at the New Curb Lines
Replacement of Drainage Trunk Lines
Reconstruction of All Outlets
Construction of Detention Basins (Recharge where feasible)
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Wetland Impact
• Total Permanent BVW Impact
– Weymouth +/- 6,000 sf
– Abington +/- 5,500 sf
– SWNAS +/- 450 sf
• Construct Low Retaining Walls to Reduce Impact
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Wetland Mitigation
• Permanent Wetland
Impacts Mitigated at
Southfield
• 15,000 sf of Mitigation
Proposed in Weymouth
• 15,000 sf of Mitigation
Proposed in Abington
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Maintenance of Traffic
Highway: Construction Stages 1 & 2
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Maintenance of Traffic
Highway: Construction Stage 3
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Maintenance of Traffic
Highway: Construction Stage 4
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Maintenance of Traffic at
Bridge Construction Workzone
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Maintenance of Traffic
Temporary Bridge Plan: East Alignment
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Maintenance of Traffic
Temporary Bridge Profile: East Alignment
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Maintenance of Traffic
Temporary Bridge Plan: West Alignment
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Maintenance of Traffic
Temporary Bridge Profile: West Alignment
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Goals of the Bridge Replacement
• Accommodate the
roadway widening
• Implement all current
standard safety features
and code requirements
• Increase live load
capacity
• Provide sidewalks on
both sides
• Provide adequate
clearances over railroad
• Provide durable, lowmaintenance structure
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Existing Bridge
• Through-girder config. –
cannot be widened
• No vehicular railings
• Substandard horizontal
clearance for railroad
• Single span
• Severe skew
• Built in 1935
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Existing Bridge
• Deteriorated, poor quality
concrete – abutments
can’t be salvaged
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Features of the Proposed Bridge
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Four 11’-6” wide lanes with 5’ wide shoulders on each side
Two 5’-6” wide sidewalks with protective screens
Standard vehicular barriers with protective screens
Maintains vertical under-clearance with
improved horiz. clearance
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Structural Details of the Proposed Bridge
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364’ long 4-span continuous structure
4’-3” deep steel I-girders
Precast concrete deck
Low-maintenance weathering steel
Semi-integral abutments
No skew
Steel integral cap beams
Precast abutment components
Drilled shaft foundations
Precast MSE retaining walls on approaches
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Proposed Bridge in Relation to Existing
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Pier with Integral Cap Beams
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Environmental Documentation & Permits
Law or Regulation
Permit Review or Approval
Agency with Jurisdiction
Status
Federal
NEPA
Finding of No Significant Impact (FONSI)
FHWA
Issued September 15, 2009
NPDES
NPDES Construction General Permit
US EPA
To be filed by contractor
Section 404 of the Clean Water Act
Massachusetts General Permit Category 2
US Army Corps of Engineers
Section 106 of the National Historic
Preservation Act
Determination of No Effect
FHWA and MHC
MEPA
SEIR Secretary’s Certificate
Energy & Environmental Affairs
MA Wetlands Protection Act
Superseding Order of Conditions Weymouth &
Abington
MassDEP
To be filed
MA Wetlands Protection Act
Variance (Combined) | Weymouth & Abington
MassDEP
To be filed
Section 401 of the Clean Water Act
401 Water Quality Certificate
MassDEP
To be filed
2/3 Vote
State Legislature
To be filed
Coordination under MESA
MA NHESP
To be filed
Article 97 of the MA Constitution
to approve the transfer of Conservation Land
MA Endangered Species Act
MA Wetlands Protection Act
MA Wetlands Protection Act
Article 97 of the MA Constitution
to approve the transfer of Conservation Land
Article 97 of the MA Constitution
to approve the transfer of Conservation Land
To be filed
Issued April 10, 2008 and April 22, 2008
State
Denial | Order of Conditions
Weymouth & Abington
Order of Conditions
Unanimous Vote
2/3 Vote
Local
Issued September 28, 2012
Weymouth & Abington
Conservation Commissions
SWNAS Conservation
Commission
Weymouth Conservation
Commission
To be filed
Weymouth Town Council
To be filed
Route 18 Widening Project
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To be filed
To be filed
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Affected Environment
Geology
Business Access
Topography
Community Services
Soils
Noise
Land Use
Air Quality
Zoning
Stormwater
Ground Water and Surface Water
Cultural Resources
Wetlands
Visual and Aesthetics
Flood Plains
Hazardous Materials
Listed Species
Utilities
Socioeconomics
Traffic
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Impact Assessment
Noise
• Noise Levels Increase
• Noise Wall Feasibility – One Location is Feasible
Stormwater
• 401,387 SF Increase in Impervious Pavement Area
• WPA Stormwater Management Variance
Wetlands
• 11,950 SF Impacted
• WPA Variance
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Right of Way
• Identify & Measure Impacts from Construction –
ROW Plans
• Property Ownership / Title Examination
• Appraisals
• Interviews
• Payments Awarded
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Construction Cost & Schedule
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$30 Million (2011 Dollars)
Public Hearing – Fall 2012
75% Design Submission – Spring 2013
100% Design Submission – Fall 2013
2 ½ - 3 Year Construction Duration
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Comments / Additional Information
Donald Dailey, Office of Government Affairs
Massachusetts Department of Transportation
Email: Donald.Dailey@state.ma.us
Phone: 617.945.4272
Project Website:
http://www.massdot.state.ma.us/highway/HighlightedProjects/
Route18WideningProject.aspx
Soon to be available:
http://www.mass.gov/massdot/Route18WideningProject
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