A new north-south thoroughfare was constructed as part of the same project that built the San Francisco-Oakland Bay Bridge. This was the Eastshore Highway which ran along a landfill causeway along the Berkeley waterfront west of the original shoreline. The emplacement of the causeway created a lagoon, Aquatic Park. The Eastshore Highway connected at intersections with several east-west streets in West Berkeley, including Ashby and University Avenues. US 40 was switched from San Pablo Avenue to the Eastshore Highway upon its opening in 1936.