San Pasqual Undergrounding Project (SPUP), San Diego County, CA

The SPUP will remove, relocate, and replace approximately 2.5 miles of the Escondido Canal that cross the San Pasqual Indian Reservation. The SPUP consists of three major components: desilting basin, replace in place section, and pipeline section. These components are further described below. Desilting Basin – (110’ long x 32’ wide) hydraulic structure within the 100-foot canal right-of-way will require the construction of large retaining walls and an all-weather access road, which includes a concrete box tunnel. Replace in Place Section – The first half mile of open canal will be replaced with a shallowly buried 60-inch wide by 48-inch high precast concrete box culvert. Pipeline Section – The box culvert will transition to buried, 60-inch diameter pipeline in a new 1.5 mile long alignment across portions of the San Pasqual Indian Reservation, easements across private parcels, and the public right-of-way in North Lake Wohlford Road. To minimize environmental impacts to a riparian area in this section, the pipeline will be constructed within a 350-foot long tunnel. Project duration is 400 Calendar Days. Bonds required. Prevailing wages apply.