Spec 2385 - Hesperian Boulevard Corridor Improvement Project From Embers Way to West A Street

This opportunity concerns the design‑and‑construction of a major roadway corridor improvement on Hesperian Boulevard, stretching from Emmers Way to West A Street in Walnut Creek, CA. The scope includes full‑depth removal of existing asphalt, installation of new hot‑mix asphalt pavement, extensive minor concrete work (curb, gutter, sidewalks, curb‑ramps, bridge concrete), storm‑water pollution prevention planning, BMP implementation, landscaping, irrigation modifications, and public‑art sand‑blasting. The project also mandates strict traffic‑management requirements (minimum two lanes open during construction) and includes M/WBE participation goals (15 % MBE / 5 % WBE). Multiple addenda (1‑8) revise bid‑item quantities, unit measures, and specifications; the original bid opening was scheduled for January 7 2020, later postponed via addenda. Attendance at at least one pre‑bid outreach meeting is mandatory, though no specific dates are given. • Roadway reconstruction: full‑depth asphalt removal, new 15‑in. HMA‑LV pavement, cold‑planing, and overlays. • Minor concrete and structural work: curb, gutter, sidewalks, curb‑ramps, bridge elements, detectable warning surfaces. • Storm‑water BMPs, SWPPP, landscaping, irrigation, and public‑art sand‑blasting. • Mandatory traffic‑lane‑open requirements and M/WBE participation goals.