Design Build Project Detail

WMATA New York Avenue Metro Station

Location

Washington D.C.

Client

Slattery Skanska/Jacobs Civil, Inc.

Services Provided

Services:
Subsurface Exploration
Soil Laboratory Testing
Geotechnical Engineering Analysis

Project Overview

Schnabel worked as the geotechnical subconsultant to the Slattery Skanska/Jacobs Civil design-build team providing the subsurface exploration and geotechnical engineering analysis for the Washington Metropolitan Area Transit Authority’s (WMATA) New York Avenue Metro Station design-build project. The new $90 million station, located in Northeast Washington D.C., is an infill station situated between two previously existing stations, Union Station and the Rhode Island Avenue Station, on Metro’s busiest line, the Red Line. This first infill station on the WMATA rail system included the relocation of the inbound and outbound tracks, extension and relocation of a bridge section over Florida Avenue, extension of the bridge abutment at M Street, and the construction of several large mechanically stabilized earth (MSE) walls.

Schnabel performed a subsurface exploration consisting of soil test borings and pressuremeter testing to evaluate the subsurface conditions. During construction, Schnabel responded to design change requests from the design-build project team to provide timely recommendations for drilled shafts in locations where pile driving was not possible. In addition, Schnabel performed observation for all of the shallow foundation installations and provided review of pile driving submittals.

Schnabel’s efforts on this project also included the assistance in gaining WMATA approval for the use of MSE walls. This effort resulted in significant cost savings for the design build team.

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