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Asian Development Bank and Cambodia Power Transmission LinesPower/Energy, Transmission & Distribution
14th Street Corridor - The Ambassador 14th Street Corridor - The Ambassador
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City and County of Denver, Downtown Denver PartnershipVisualization, Design Visualization
50 Connaught Road Central 50 Connaught Road Central
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Apollo Global Real EstateProgram Management/Construction Management
63rd Street Connector 63rd Street Connector
Queens, New York, United States
Metropolitan Transportation Authority - New York City TransitRail, Tunneling & Geotechnical
796 Huai Hai Road Restoration 796 Huai Hai Road Restoration
Shanghai, China
Richemont GroupBuilding Engineering, Commercial & Retail
AC Transit State of Good Repair AC Transit State of Good Repair
California, United States
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Active Traffic Management Feasibility Studies Active Traffic Management Feasibility Studies
Seattle, Washington, United States
Washington State Department of TransportationIntelligent Transportation Systems
African Burial Ground Memorial African Burial Ground Memorial
New York, New York, United States
General Services Administration Government
Air Liquide Hydrogen Storage Cavern Air Liquide Hydrogen Storage Cavern
Spindletop, Texas, United States
Air Liquide Large Industries U.S., LPPower/Energy, Underground Storage, Program Management/Construction Management
Airport Link, Northern Busway (Windsor to Kedron) and Airport Roundabout Upgrade project Airport Link, Northern Busway (Windsor to Kedron) and Airport Roundabout Upgrade project
Brisbane, Queensland, Australia
Queensland GovernmentTransportation, Highways, Mass Transit, Bus, Mechanical/Electrical, Tunneling & Geotechnical

title

Birch Hill Road Bridge

York, Maine, United States

Client: Town of York

Parsons Brinckerhoff Role: Designer

Birch Hill Road Bridge
The first thermoplastic bridge constructed in the U.S. highway system was opened in the state of Maine in December 2011. The new bridge, located on Birch Hill Road west of York Harbor, replaced the existing concrete culvert as the waterway was widened from 3 to 12 feet (0.9 to 3.6 meters). The concrete culvert needed to be replaced because the area of Birch Hill Road often flooded during storms. In the past four or five years, the area of Birch Hill Road has been closed at least twice because of water rushing over the road.

The two-lane bridge is approximately 26 feet (7.9 meters) wide and 14 feet (4.3 meters) long. The bridge consists of a single-span, with curbing, abutment headwalls and wingwalls. The entire bridge components, including girders, piles, pier caps, backwalls, and wingwalls, are made of recycled plastics that would otherwise be discarded into landfills.

Dean Lessard, Director of Public Works for the town of York Maine, commented, “This bridge will be a great addition to our historic, forward thinking and environmental conscience town. Our Board of Selectmen was extremely supportive in utilizing recycled plastic technology to replace the undersized culvert that was prone to causing that section of Birch Hill road to flood. I recommended thermoplastic over other options due to the structure’s timber-like appearance and the product’s environmental credentials combined with its durability and minimum maintenance requirements.”