Description
This opportunity is for the design‑build of new and rehabilitated sidewalks, bike lanes, curb‑and‑gutter, and minor concrete/CMU retaining walls along Stanton Avenue from Castro Valley Boulevard to Miramar Avenue in Castro Valley, CA. The work follows Alameda County standard detail SD‑304, includes bioretention curb‑and‑gutter, road‑way excavation (excluding structural excavation), and requires full compliance with prevailing‑wage rules and MBE/WBE good‑faith goals. The contractor must manage traffic control, pedestrian detours, and all QA/QC testing at its own expense. No job‑site trailer is required, and the project must be completed within 190 working days after the notice‑to‑proceed (anticipated February 2020).
• New/rehabilitated sidewalks and bike lanes, including curb‑and‑gutter per County Standard Detail SD‑304.
• Bioretention planters, minor concrete/CMU retaining walls, and associated excavation (Item #25 excludes structural excavation).
• Traffic‑control, lane‑closure, and pedestrian‑detour management; 500 LF maximum sidewalk disruption at any time.
• All work subject to prevailing‑wage requirements; contractor bears all QA/QC testing costs.