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Huitt-Zollars prepared construction documents for 2.5 miles of stormdrain improvements with RCP pipe sizes up to 96 inch diameter, for the master - planned Cypress Avenue storm drain (MPD Line T-2). The facilities start at Sierra Avenue and drain west to the intersection of Cypress Avenue and Foothill Boulevard and continue southbound on Cypress Avenue to connect to the County 9'xT West Fontana Channel lateral near the intersection with Orange Way. A detailed Composite Utility Plan was created using base files and record drawings gathered from wet and dry utility companies. The Plan served as a key support to identify the most efficient horizontal and vertical alignments, along with the definition of a trench detail. A feasibility evaluation for curb, sidewalk, and accessibility improvements was performed to identify design alternatives and itemize potential repairs. Street Improvements include 3,000 lineal feet of raised landscaped medians, two traffic signal modifications; widening the Foothill/Juniper intersection;1.25 miles of ADAretrofit of all sidewalks, curb ramps, and driveway approached; and 2.25 milesof pavement rehabilitation. Aconstruction phasing plan was also prepared to minimize impacts on local traffic and residents. The project includes RELEVANT DESIGN the preparation of plan, CLIENT CONTACT: COMPONENTS: specification and estimates City of Fontana • Stormdrain design for the storm drain, street, Chris Smethurst • Utilityrelocations and utility relocation plans Associate Engineer 909.350.6649 CSmethurst@fontana.org ........ Street Improvements • Signal design • ADA Design • Traffic Control Huitt-Zollars has been assisting the City with its Stormwater Implementation Program, providing a wide range of services including the preparation of: Retrofit study of existing City pump stations (Bartlett, Hamilton, Talbert, Atlanta) to incorporate full capture trash screens and media to capture pollutants of concern. Mapping of subsurface utilities and operational capabilities to defne a conceptual design for inclusion into the CIP program. Construction documents for LID and Trash BMPs including the McCallen Park Water Quality Improvements to remove trash and debris from more than 2 square miles. Design challenges included shoring for a 32-foot deep pit, relocation of SCE and SCG lines, contaminated soil, as well as coordination with the Boys and Girls Club. BMP Feasibility Study and Master Planning including the Citywide Trash Compliance Plan based on the citywide storm drain, which resulted in the identifcation of more than 70 retroft opportunities. An emphasis on Regional BMPs, including inftration BMPs, bioftration BMPs, and large-scale hydrodynamic separators has proven to be cost effective based on long-term maintenance costs. A BMP sitting feasibility was performed to determine pollutant load reduction, fow capacity, fooding impacts, and traffic impacts during construction. BMP opportunities were validated by assessing the presence of potential easements, utility conficts, and hydraulic gradients. Preliminary engineer's estimates of probable costs and fact sheets were created for each opportunity. CLIENT CONTACT: City of Huntington Beach Jim Merid 714.375.8445 jim.merid@surfcity-hb.org HUITFZOLIARS City of Santa On -Call Water Resources Engineering Services RFP No. 22-002 12