Eastshore Freeway
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The Eastshore Freeway is a segment of Interstate Highways 80 and 580 which runs along the northeast shoreline of San Francisco Bay in northern California. It begins at the Carquinez Bridge and ends at the MacArthur Maze interchange just east of the western end of the San Francisco-Oakland Bay Bridge.
The Eastshore Freeway was created in the early 1950s by re-engineering the Eastshore Highway, a thoroughfare constructed in the 1930s as one of the approaches to the Bay Bridge and designated as part of U.S. Highway 40. The Eastshore Highway began in El Cerrito at an intersection with San Pablo Avenue at Hill Street between Potrero Avenue and Cutting Blvd., adjacent to the location today of the El Cerrito Del Norte station of BART. It was not a freeway in that access was at intersections with adjoining streets rather than by ramps. The Eastshore Highway ran from El Cerrito to the Bay Bridge along the same routing as today's freeway, although it was much narrower. A causeway was constructed for this purpose by filling in part of the mudflats along the bayshore. In the stretch from University to Ashby Avenues in Berkeley, this resulted in the creation of an artificial lagoon which was developed by the WPA in the late 1930s as "Aquatic Park".
The frontage road along the east side of today's Eastshore Freeway between Buchanan Street in Albany and Hearst Avenue in Berkeley retains the name "Eastshore Highway". The terminal segment of the old Eastshore Highway in El Cerrito between Potrero and San Pablo Avenues is named "Eastshore Blvd.".
Legal definition
Legally, only the segment of I-80 from the Bay Bridge to Richmond is currently named the "Eastshore Freeway". This section was named by Senate Concurrent Resolution 99, Chapter 229 in 1968. Although the state does not officially recognized the segment from Richmond to the Carquinez Bridge as part of the "Eastshore Freeway", it is still commonly used locally.Communities served
- Oakland (MacArthur Maze)
- Emeryville (One exit: Powell Street)
- Berkeley (Three exits: Ashby Avenue, University Avenue, Gilman Street}
- Albany (One exit: Buchanan Street)
- El Cerrito (One exit: Central Avenue)
- Richmond
- San Pablo
- Pinole
- Hercules
- Rodeo
- Crockett
Major Intersections
Freeways intersecting with the Eastshore Freeway include:MacArthur Freeway (I-580)Nimitz Freeway (I-880) John Muir Parkway (SR-4)
References
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