The Van Wyck Expressway (I-678) is JFK International Airport’s primary access road, making it a critical route for international air travelers, truck traffic, and Queens residents. To ease congestion from its insufficient capacity and address geometric and structural deficiencies, the New York State Department of Transportation (NYSDOT) widened 4.3 miles of the Van Wyck by adding a fourth—and sometimes fifth—lane in both directions from Kew Gardens Interchange to JFK.

EnTech performed a wide range of engineering services as a subconsultant on the preliminary design team, in advance of a design-build delivery. The firm provided extensive structural design and analysis for many of the 20 bridges crossing the expressway impacted by the project, including developing preliminary structural designs for two roadway bridges and one pedestrian bridge. The structural team prepared preliminary designs for other bridges and retaining wall structures. EnTech’s civil team prepared designs including roadway geometry, pavement, and signing plans. 

EnTech’s VDC division performed extensive modeling services of four LIRR bridges, three roadway bridges, and one pedestrian bridge, including laser scanning, BIM, modeling design alternatives, and visualizations. EnTech’s environmental team performed a Phase I ESA, Phase II subsurface investigation, and hazardous materials investigation. The firm additionally performed geotechnical exploration to determine soil characteristics and groundwater depth.