The Mt. Vernon Avenue Bridge (MVAB) project is a complex bridge replacement project that spans over one of the largest rail yards in the region. An iconic structure in San Bernardino, the Mt. Vernon Avenue Bridge connected communities on the west side of San Bernardino for 86 years, serving as a vital link for residents, visitors, students, and businesses. Given that the bridge was rated as severely deficient, public safety reasons strongly encouraged that the deconstruction effort commences as soon as possible while the design-build team finalized other critical path items toward reconstruction. Accordingly, the bridge closed to the public in December 2020 and disassembly was completed in April 2021.

Following disassembly of the bridge, operators of the rail yard, Burlington Northern Santa Fe (BNSF) Railroad, needed to relocate a building in their yard and perform work to realign some of the rail lines in order to maintain operations during the reconstruction. As a result, the Mt. Vernon project was staged so that bridge work would be suspended during the BNSF operation. The original schedule made some assumptions on indeterminate items like utilities, property acquisition, and other right of way issues. Unfortunately, those areas took longer than anticipated and BNSF was delayed in commencing their work until they were resolved. In April 2023, SBCTA helped to resolve a utility conflict within the rail yard, allowing BNSF to proceed with their work. With that hurdle cleared, BNSF completed their improvements in late-2023.

SBCTA and the project design-build team, Traylor Granite Joint Venture (TGJV), are working diligently to reconstruct the Mt. Vernon Avenue Bridge and reconnect the southern and northern sections of West San Bernardino as soon as possible. In October 2023, the team resumed work in the field, including relocating utilities between 2^nd Street and 3^rd Street to make room for construction of the new bridge. In December 2023, crews began work on the foundation for the south bridge approach and completed building the bridge columns along 3^rd Street. In January 2024, crews began working on the foundation for the new portion of the Mt. Vernon Avenue Bridge, north of the railyard at Kingman Street and Mt. Vernon Avenue. SBCTA is optimistic that the new bridge will be completed and open to the public in Summer 2025.

For more updates, please click on the following link. https://www.gosbcta.com/project/mt-vernon-viaduct/