H&H is providing preliminary and final design engineering for the five pedestrian bridges, elevated boardwalks, and retaining walls for the George Snyder Trail. The project will complete the construction of the two-mile trail along the southern side of Accotink Creek, running east/west between Chain Bridge Road (Route 123) and Fairfax Boulevard (Route 50). The City of Fairfax, VA, intends to connect this trail to the proposed VDOT shared use path along Route 123 in conjunction with the I-66 Outside the Beltway improvements. The connection to the VDOT shared-use path will provide George Snyder Trail users with the opportunity to travel east approximately 33 miles to Washington DC or west approximately 20 miles to Haymarket, Virginia, along the I-66 corridor.
Five pedestrian bridges ranging in length from 50 feet to 110 feet are including in the project, four across the Accotink Creek and one across an unnamed tributary. The trail also includes approximately 450 feet of elevated boardwalk supported by concrete piers. The pedestrian bridges will be through truss superstructures with concrete decks on reinforced concrete abutments and piers. Weathering steel was chosen to blend into the natural environment and to reduce maintenance costs. The boardwalk deck will be composed of precast concrete planks selected for their durability and appearance. Retaining walls range in height from 3 ft to 17 ft and are composed of precast segmental block.