Project Details

Owner: City and County of San Francisco

Contract value: $5,537,450


The upgrade project included the installation of 105,000 ft of 750 KCMIL 2.4kV-DC cable with over 1500 inline splices in 102 manholes throughout San Francisco. More than 700 ft of ductbank were installed in San Francisco’s Financial District. New switchgear enclosures (with circuit breaker, meter, etc.) and several conduit raceways were constructed to upgrade two existing substations and eight existing circuit breakers were removed, refurbished, and reinstalled at the MUNI Downtown Substation.

The work was scheduled in coordination with three other ongoing MUNI projects to ensure that traction power was available or de-energized as needed.