The South Bay Expressway 125 South toll road) is a 9.2-mile, privately-developed southern extension of SR 125, extending from San Miguel Road in Bonita, CA near the Sweetwater Reservoir to SR 905 in Otay Mesa, near the International Border. The project connects the only commercial port of entry in San Diego to the regional freeway network. DLCE was involved in the preparation of the environmental planning study and provided design support to the design-build concessionaire. This included highway and local streets and roads geometric design, grading, estimating and utility identification/relocation. Also played a major role in the preparation of final plan, specifications and estimates (PS&E) for existing local roads at Fanita Road, Santee Avenue to South of Navajo Bridge. DLCE staff prepared hydrologic and hydraulic report. Locate existing underground and above ground utilities, identified conflicts and propose relocation of utility lines. Prepare utility matrix that identified all major utilities. Prepared quantities for final estimates.