Description
This solicitation seeks a qualified contractor to perform a maintenance dredging project at the San Francisco Marina West Harbor. The work includes mobilization/demobilization, pre‑ and post‑hydrographic surveys, mechanical dredging of designated areas (A, B, D) to required elevations, optional dredging of areas C and E, supply and installation of PATON navigation buoys and staff gauges, and proper disposal of dredged material at approved offshore sites. The contract is capped at $1.17 million, with a $900 k cost estimate, and must be completed within a tight 30‑day performance window after notice to proceed, subject to strict environmental and seasonal restrictions.
• Base‑bid items: mobilization, surveys, dredging (Areas A, B, D), PATON buoys, staff gauges.
• Optional additive items: dredging of Areas C and E (same unit price as base dredge).
• Mandatory regulatory compliance: USACE, BCDC, RWQCB, and herring‑spawning seasonal prohibitions (Dec 1 – May 31).
• Payment structure: lump‑sum milestones for mobilization and surveys; unit‑price per cubic yard for dredging; 5 % retention; performance and payment bonds required.