Cobb Island and Hill Road Pump Station Improvements (UN 1308\UN 1309)

The Board of Commissioners for Charles County, Maryland is seeking bids for construction services to improve two sewage pump stations (Cobb Island and Hill Road) under ITB solicitation #27-010, with bids due October 28, 2026 at 11:00 a.m. A mandatory MWBE subcontractor participation goal of 9.5% applies.

The scope includes demolition of existing mechanical and electrical equipment; installation of new process mechanical piping and equipment; civil site work and temporary bypass pumping; electrical work; and instrumentation and system integration at Cobb Island Sewage Pump Station (15255 Potomac River Drive, Cobb Island, Maryland) and Hill Road Sewage Pump Station (13250 Hill Road, Newburg, Maryland). The contractor must provide a detailed bypass pumping plan sealed by a Maryland licensed professional engineer at least three weeks prior to scheduled shutdowns and furnish operation and maintenance manuals with manufacturer's certificates. Facility shutdowns are restricted to four-hour periods during low-flow conditions (11:00 p.m. to 3:00 a.m.). Process Demonstration and Testing must occur for five to fourteen consecutive days. All work must be completed within 630 consecutive calendar days after the mutually agreed-upon Notice to Proceed date, which must be negotiated within six months of contract award.

All County-financed construction projects exceeding $500,000 are subject to prevailing wage rates; mechanical services contracts including electrical work are subject to prevailing wage for any services valued over $2,500. A 5% Bid Bond, Performance Bond and Labor & Material Payment Bond (each at 100% of contract price from Maryland-licensed sureties), Vendor Disclosure Form, Experience Form demonstrating at least five years in the field with three comparable projects, MWBE Compliance Plan or Good Faith Effort forms, Intended Sub-Contractors Form, and Non-Collusion Affidavit are required. Award basis is the lowest responsive, responsible bidder on the sum of Base Bid Items plus Contingency Items. A non-mandatory pre-bid meeting will be held virtually October 5, 2026 at 11:00 a.m. (registration deadline 8:00 a.m. same day), and a non-mandatory site visit occurs October 8, 2026 at 10:00 a.m. at the Cobb Island location. Questions are due October 13, 2026 at 12:00 p.m. Bids must be submitted electronically via https://secure.procurenow.com/portal/charlescountymd and remain valid for 120 days from the due date.