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.