CYANOBACTERIA HARFUL ALGAL BLOOM (CHAB) MAINTENANCE DREDGING

The Stockton Port District is seeking qualified contractors to perform maintenance dredging of the surface sediment layer along the Stockton Waterfront. The work includes mobilization, dredging, proper handling, transportation, and placement of the dredged material at the Roberts Island Dredge Material Placement Site in accordance with federal and state permits. The contract is funded by a U.S. Army Corps of Engineers grant and is subject to prevailing‑wage (Davis‑Bacon) and Transportation Worker Identification Credential (TWIC) requirements. Bidders must hold a California “A” contractor license, submit extensive pre‑bid documentation (bonds, certifications, non‑collusion affidavit, etc.), and coordinate site visits during the pre‑bid period. The project must be completed by November 30 2026, with a 40 % progress payment after the pre‑dredge survey and the remaining 60 % after the post‑dredge survey. • Scope: surface‑layer maintenance dredging, sediment handling, transport, and placement at Roberts Island DMPS. • Funding: USACE Federal Grant No. W912HZ25C0003. • Schedule: Bids due Sep 30 2026; work to be finished by Nov 30 2026. • Requirements: California “A” license, TWIC for all site personnel, Davis‑Bacon prevailing‑wage compliance, detailed survey submittals, bonds (10 % of bid), and numerous certifications. • No pre‑bid conference; site visits by request. • Payment: 40 % after pre‑dredge survey, 60 % after post‑dredge survey.