City of Larkspur, California, Larkspur Bridge Rehabilitation Program, Public Works & Engineering, Engineering Division

The City of Larkspur is home to three bridges connecting Magnolia Avenue to streets to the east: the Bon Air Bridge, the Doherty Drive Bridge, and the Alexander Avenue Bridge. Over time, each has been damaged by wear or by tidal action, and has been repaired or retrofitted to varying degrees. Additionally, over the last 50 years, safety standards for the design of bridges and access to them have changed. All of these factors have contributed to Caltrans declaring the bridges "Structurally Deficient."

The City of Larkspur intends to repair, retrofit, and/or replace these three local bridges, under the Federal Highway Bridge Rehabilitation and Replacement (HBRR) program.

Doherty Drive Bridge

Each bridge will be planned, designed, and constructed separately. Bridge-specific issues for the three structures vary, as the structures are different in their local significance, utility, environmental settings, and repair/retrofit/replacement considerations. The Alexander Avenue Bridge is on the National Register of Historic Places and requires special processes and design considerations. For this reason, work on the Bon Air and Doherty Bridges, including design, engineering and construction, will occur before that

Alexander Avenue Bridge

for the Alexander Bridge.

Currently the planned schedule for the project is for technical, environmental, and design studies to take place in 2008; detailed structural design activities to occur in 2009; and actual construction to start after mid-2010.

For more information, call Larkspur Public Works at 415.927.5017, or email publicworks@larkspurcityhall.org. Below are links to Fact Sheets for each bridge.

Bon Air Bridge Doherty Drive Bridge Alexander Avenue Bridge

Project Calendar

June 4, 2008	City Council Meeting Project overview
June 26, 2008	Public meeting to review project and proposed designs
August 20, 2008	City Council Meeting Report on Public Outreach, design guidance
December 3, 2008	City Council Meeting Review of designs and construction schedule guidance (minutes not yet available)