4133 Calmoor Street – Storm Drain Repair

The City of National City is soliciting bids for a storm‑drain repair project at 4133 Calmoor Street. The work includes invert grouting of an existing 24‑in. corrugated metal pipe, installation of a new 24‑in. cured‑in‑place pipe (CIPP) liner, sinkhole remediation, utility coordination, traffic and pedestrian control, and final site restoration. The contract is a direct award under the city’s CIP 26‑04, with a $115,000 estimated value and a 15‑working‑day construction schedule. Bidders must provide a 10 % bid bond, performance and payment bonds equal to 100 % of the contract price, and meet prevailing‑wage, licensing, and insurance requirements. • Invert grouting and CIPP lining of a 24‑in. storm‑drain pipe, plus sinkhole repair. • Required utility location/potholing, traffic‑control plan, and ADA‑compliant pedestrian detours. • Mandatory pre‑bid conference on March 5 2026; electronic bid submission due March 10 2026, with a 10 % bid bond. • Retention of 5 % held 30 days after notice of completion; liquidated damages $1,500 per day for overruns.