Phase 1B construction work has started.

Phase 1B work will last approximately 1 year and will include expanding the construction area on Bon Air Road from Magnolia Avenue to Bayview Road and shifting traffic to the south side of Bon Air Road to accommodate construction on the north side. We appreciate your patience and cooperation following all onsite construction signage.

For more information about current construction activities, please review our Construction notice.

Stage 1 Trestle Construction

The City of Larkspur has awarded a construction contract for the Bon Air Bridge Replacement Project to Golden State Bridge of Benicia, CA. For more information about the project, please review our Fact Sheet. Please check back every few weeks for construction updates or contact to request an email alert when new information is posted.

Roadwork – Magnolia/ Bon Air Improvements – Northbound Magnolia pavement reconstruction between October 22 and November 16, 2018. Expected delays through the intersection as NB Magnolia will be reduced to 1-Lane.

Bridgework – Stage 1 Bon Air Bridge – Temporary trestle pile and sheetpiling cofferdam work is expected to finish on October 19. The next operation is bridge foundations and pier construction starting on October 22 and will last through January 15.

Special Notice – Pedestrian crosswalks at Magnolia / Bon Air are closed until November 16th. Please follow all pedestrian detour signs directing pedestrians to use the Bon Air Mid-block Crosswalk. Crosswalk is controlled by Rapid Repeating Flashing Beacons and Pedestrian Crosswalk Signage. Additionally, due to the lane width restrictions on Bon Air Bridge the City requests that all bicyclist walk their bikes on the bridge sidewalk.

Thank you for your patience during construction.