Mathilda Avenue Improvements at U.S. 101 and SR 237 Project

The California Department of Transportation (Caltrans), in cooperation with the Santa Clara Valley Transportation Authority (VTA) and the City of Sunnyvale, proposed the Mathilda Avenue Improvements at State Route (SR) 237 and United States Highway 101 (U.S. 101) Project to reduce congestion and improve multimodal transportation along Mathilda Avenue in the City of Sunnyvale from Almanor Avenue/Ahwanee Avenue to Innovation Way. This project included on- and off-ramp improvements at the SR 237/Mathilda Avenue and U.S. 101/Mathilda Avenue interchanges. This project was necessary to sustain the growth and local development in the area, and it was funded by the 2016 Measure B, City of Sunnyvale, and Senate Bill (SB) 1.


Design features included reconfiguration of the U.S. 101 and SR 237 interchanges with Mathilda Avenue. This included modifications to on- and off-ramps; removal, addition, and signalization of intersections; and provision of new left-turn lanes. In addition, the project included the modification and construction of bicycle and pedestrian facilities, utilities, stormwater treatment facilities, street lighting, ramp metering, signage, retaining walls, and light rail crossing facilities.


As a subconsultant to WMH Corporation, WRECO was involved in the Project Initiation Document (PID), Project Approval and Environmental Document (PA/ED), and Plans, Specifications, and Estimate (PS&E) phases of the project providing hydrology, hydraulics, drainage, water quality, and stormwater recommendations and reporting services.


View VTA’s video celebrating the success of this constructed project here:


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