This is an unusual overpass ramp that displays multiple details that are evidence of a substantial engineering effort. The bridge's superstructure is an unusual curved concrete deck girder design that is made more unusual by a cantilevered design that consists of suspended spans resting on cantilever arms. The spans that carry the ramp over the traffic lanes do not appear to display the cantilevered detail, the suspended spans only occur on the approaching spans. Additional engineering complexity in the bridge is realized by the changing elevation of the bridge as it rises and falls over the CA-1 highway, while also achieving a superelevated curve for the roadway it carries. The arched shape of the girders as well as the original concrete railings that remain on the bridge provide a graceful, streamlined appearance. Despite a relatively young 1950 construction date, this bridge is noteworthy for its lack of alteration and unusual, complex design. It was noted that the spans with the cantilever arms and suspended spans have been seismically retrofitted with cables that appear to act as a failsafe to catch the suspended span(s), should an earthquake knock them lose from the cantilever arms that they rest on.
Coordinates (Latitude, Longitude):
Search For Additional Bridge Listings:
© Copyright 2003-2023, HistoricBridges.org. All Rights Reserved. Disclaimer: HistoricBridges.org is a volunteer group of private citizens. HistoricBridges.org is NOT a government agency, does not represent or work with any governmental agencies, nor is it in any way associated with any government agency or any non-profit organization. While we strive for accuracy in our factual content, HistoricBridges.org offers no guarantee of accuracy. Information is provided "as is" without warranty of any kind, either expressed or implied. Information could include technical inaccuracies or errors of omission. Opinions and commentary are the opinions of the respective HistoricBridges.org member who made them and do not necessarily represent the views of anyone else, including any outside photographers whose images may appear on the page in which the commentary appears. HistoricBridges.org does not bear any responsibility for any consequences resulting from the use of this or any other HistoricBridges.org information. Owners and users of bridges have the responsibility of correctly following all applicable laws, rules, and regulations, regardless of any HistoricBridges.org information.