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US 101 / Blossom Hill Road Interchange Improvements

May 11, 2022: Biggs Cardosa is the structural engineer for the US 101/Blossom Hill Road interchange improvement project in San Jose. The project consists of reconfiguration of on- and off-ramps at US 101 and installation of a Class I bicycle and pedestrian bridge connecting Monterey Road and Coyote Creek. The 100-foot-long prefabricated steel truss portion of the pedestrian bridge traveled from Mare Island in Vallejo to San Jose overnight on May 11th. It was lifted into place by a crane and secured by the hard-working construction crews during a night-time closure of the NB diagonal on-ramp. The bridge erection was completed on schedule. The project also includes a widening of the Blossom Hill Overcrossing including a seismic retrofit of the existing bridge; an Off-Ramp Pedestrian Undercrossing (PUC); an On-Ramp Pedestrian Undercrossing (PUC); a soil nail wall; and MSE walls. The project is expected to be completed and opened for use in the Fall.

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Glendale-Los Angeles Garden River Bridge

February 1, 2022: Biggs Cardosa was awarded a contract to provide engineering, environmental, and construction support services for a new pedestrian and bicycle bridge over the Los Angeles River. The project is Phase III of the Glendale Narrows Riverwalk and aims to increase access to the LA River and Griffith Park, improve connections, and increase the safety of paths used for bicycling and walking. Biggs Cardosa is leading a team of consultants working with the City of Glendale, City of Los Angeles, and other stakeholders to develop conceptual designs and prepare construction documents for this new bridge.


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McKinley Street Grade Separation

December 17, 2021: The construction contract for the McKinley Street Grade Separation in Corona has been awarded, and major construction activities for the project will commence in Spring 2022. Stay tuned to the project website (https://www.coronaca.gov/government/departments-divisions/public-works/construction-projects/mckinley-grade-separation) for updates during construction. Biggs Cardosa is the prime consultant and structural engineer for this complex grade separation project that will elevate McKinley Street over the BNSF Railway tracks. The project features an innovative steel network tied-arch bridge that will be constructed in a staging area and moved into place overnight using Self Propelled Modular Transports, an Accelerated Bridge Construction technology. 

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Rosecrans/Marquardt Grade Separation

April 15, 2022: Metro has issued a Notice of Intent to Award the construction contract for the Rosecrans/Marquardt Grade Separation project in the Cities of Santa Fe Springs and La Mirada. Biggs Cardosa is the prime consultant and structural engineer for this project that will eliminate the most hazardous grade crossing in the State. We are excited to see this project move into the construction phase, and will be supporting Metro, the Cities, and other stakeholders by providing engineering support during construction.

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Pacific Electric Trail Bridge

March 25, 2022: A fire destroyed the timber Pacific Electric Trail Bridge in the City of Montclair, and Biggs Cardosa was contracted to design the replacement bridge. The replacement bridge is a prefabricated steel truss bridge with a concrete deck, which will be resistant to fire and restore trail access. Biggs Cardosa was on-site for the prefabricated truss erection on March 25. The concrete deck should be cast in the upcoming weeks, and the trail re-opened to users in the near future.


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Poche Beach Walkway Replacement

March 31, 2022: The Poche Beach Walkway in Dana Point is subjected to harsh marine conditions. The condition of the structure deteriorated, the walkway was closed, and OC Parks contracted Biggs Cardosa to design the replacement structure. The walkway replacement consisted of stainless steel and fiberglass-reinforced polymer materials, which will withstand the harsh marine conditions. The project was completed in March 2022, and access to Poche Beach has been restored.


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