Safety was paramount to the project, and heavily monitored by the California Department of Water Resources, Division of Safety of Dams. A commitment to training programs, hazard mitigation measures, and communication between all parties allowed the post-construction coring program to be completed with no recordable injuries or lost time incidences.
The platform work on the downstream face of the dam created unique safety risks and necessitated specialty training. Crews would need to rappel down the face of the dam to install the drill platform, and work in close proximity to the operating core drill while wearing harness equipment. A High Angle Ropes Rescue instructor was brought in to train field staff, completing all instruction at the dam so any project-specific concerns would be addressed. The training involved modes of access to downstream boring locations, as well as mock medical evacuations in case of emergency.
The narrow crest of the dam and frequency it was traversed throughout the project also raised safety concerns. The 280-foot-long spillway was approximately a foot wide and rounded, creating a challenging crossing many crew members would undertake on a daily basis. Beyond the mandatory harness requirements for crossing the spillway, Crux installed a temporary handrail system as an added safety measure.
As an increased safety measure, Crux designed a temporary handrail system across the 280-foot spillway to facilitate crew access from the right abutment to the left. The crest of the spillway is
The San Vicente Dam Raise is the largest component of SDCWA’s Emergency Storage Project, which is a system of reservoirs, interconnected pipelines, and pumping stations in the San Diego area. The additional 152,000 acre-feet of storage is owned by SDCWA and will be used to maintain water reserves for emergencies.
The new dam reached full height by late 2012, and subsequent new facilities were completed by mid-2014. Restoration work is currently ongoing, and SDCWA expects to fully reopen the reservoir for recreational activities before 2017.