Kabbara Engineering prepared preliminary alignment studies and final improvements plans, specifications, and construction cost estimates for Phase 1 & Phase 2 storm drain improvements in Taft Avenue from the County owned Collins Channel to Glassell Street. The project also included preliminary main line alignment for the proposed future Phase 3 extension from Glassell Street to Cambridge Street. Kabbara Engineering analyzed the existing City Master Plan Hydrology, found errors, and developed proposed accurate storm drain solutions for the existing flooding problems which had occurred at the intersection of Taft and Glassell. Project included extensive hydrology and hydraulic calculations, geotechnical investigation and report, extensive County, SCE and utility coordination, 66″ & 54″ RCP and laterals, junction structures, manholes, waterline relocation details, construction phasing, traffic striping, catch basin construction, pavement, driveway, sidewalk, bus pad, curb and gutter reconstruction.