replacement of n. carlin springs road bridge over george mason … · 2017-10-18 · replacement of...
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Replacement of N. Carlin Springs Road Bridge over George Mason Dr.
Approximate schedule with phases and proposed Maintenance of Travel (MOT) plans
October 2017
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Project Elements
• Removal of existing bridge span over George Mason Drive
• Construction of new bridge with four travel lanes, bike lanes, wider sidewalks, jointless deck, higher clearance and refurbished bridge abutments
• Installation of new sanitary sewer line under N. Abingdon Street and Carlin Springs Road
• Site restoration & enhancement
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5’ 25.5’ 4’ 25.5’ 5’
8’ 5’ 11’ 10.5’ 10.5’ 11’ 5’ 8’
Existing Cross Section – 65’ Wide
Existing Centerline
Final Centerline
Planned Cross Section – 69’ Wide
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New Bridge’s Design
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Projected Schedule
• November 1 _ Contractor’s “Notice to Proceed”
• December 1– Demolition & New Construction begins
• Fall 2019 – Construction complete• Spring 2020 – Landscape
restoration
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Phase 1 Work & Maintenance of Traffic
• Set up of work site (November 2017)
• Removal of roadway median; existing bridge is split into two parallel bridge spans. A temporary barrier is installed between the spans.
• Southern span (northbound lanes) is removed.
• Traffic is reduced to one lane per direction across Carlin Springs Road bridge
• When south span is removed, all traffic on Carlin Springs and George Mason must be rerouted via detours (December 1-3 weekend)
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Detours - Used Only During Short Term Closures
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Phase 2 Work & Maintenance of Traffic
• Construction of new south side bridge section
• All traffic (vehicles and pedestrians) is shifted to the north span
• When steel beams are installed both roads will be closed for one day (a Saturday, date TBD)
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Phase 3 Work & Maintenance of Traffic
• Removal of existing north side span
• Construction of new north side bridge span
• Construction of new sewer line in Carlin Springs Rd and Abingdon Street.
• All traffic (vehicles and pedestrians) is shifted onto the new south side span.
• When north span is removed, all traffic on Carlin Springs & George Mason Drive must be rerouted via detours (a weekend in early summer 2018), Also closure on one Saturday for steel beams installation.
• Abington Street within sewer line construction zone is reduced to one lane (north bound only).
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Sewer Line Construction
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Phase 4 Work & Maintenance of Traffic
• Refurbishment of bridge abutments and wing walls
• Completion of permanent sidewalks on new bridge
• Vehicular traffic on Carlin Springs Road will be returned to two lanes in each direction across bridge
• Full pedestrian travel (both sides of bridge) will be restored after permanent sidewalks are completed
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Completion
• Removal of construction trailer, temporary signage and building materials
• Restoration of site and planting of new landscaping
• No impacts on traffic movement (vehicles or pedestrians)
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Expected Community Concerns
• Cut-through traffic as a result of short-term lane closures and traffic detours
• Potential traffic congestion from lane reductions & detours during construction
• Some access restriction on N. Abingdon Street
• Pedestrian crossings of N. Carlin Springs Road at N. Wakefield and N. Edison streets
• Rerouting or disruptions to Metrobus Route 25 service
• Noise & dust from demolition and construction
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Contacts:
Web page: www.arlingtonva.us/projects/carlin-springs-road-bridge/
• Arlington’s Bridge Engineer – Ravinder Singh, 703 228-3661,
• Arlington’s Construction Manager – TBD, will be posted on webpage
• Rustler Construction’s Site Manager -
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Landscaping – Tree Removal, Replacement & Protection