Bridge Construction: February 2016 - October 2018 (Completed) PG&E Construction: February 2018 - August 2018 (Completed) Site Security & Complete the Gap Trail Project: October 2018 - December 2018 (Current work) Reopening of Roadway: January 11, 2019
The work to be done consists, in general, of constructing a new replacement 626 foot long by 51.5 foot wide cast-in-place, post-tensioned concrete box girder bridge on top of the Lower Crystal Springs Dam. It will be installed approximately seven feet higher than the previous bridge due to the work completed by the San Francisco Public Utilities Commission (SFPUC) to raise the parapet wall on the dam. The previous bridge has been demolished and removed from site.
The work to be done includes installing conduit support brackets for a PG&E conduit for the 230 kV electrical transmission line, grading, drainage facilities, paving, and vista point area parking lot improvements. The Project will also include coordination with PG&E’s construction crew for the installation of the 230kV electrical transmission line under the bridge and at the bridge approaches.