MD1745 Stormwater Pond Retrofit

The County of Loudoun, Virginia is requesting bids from qualified general contractors to retrofit and convert Stormwater Facility MD1745 from a Level I Wet Pond to Wetlands under IFB, with bids due October 30, 2026 at 4:00 p.m. Eastern Time. A virtual pre-bid conference is scheduled for October 6, 2026 at 11:00 a.m., and a mandatory site inspection is October 7, 2026 at 11:00 a.m. at 22660 Executive Drive, Sterling, Virginia.

The scope includes removal and disposal of approximately 4,200 cubic yards of accumulated sediment, vegetation, and earthwork; installation of one sediment forebay, one plunge pool, and one deep plunge pool at existing inflows; construction of three wetland cells with intercell berms and one flow channel; and landscape plantings. The facility is located on County property PIN# 045-17-3780 with access through an easement on the adjacent property.

Bidders must provide a lump sum bid price, bid security equal to at least five percent of the bid amount, performance and payment bonds each equal to 100 percent of the contract price, a Class A Virginia Contractor license, proof of bonding capability from a surety with A.M. Best Financial Strength Rating of A- or better and Financial Size Category VII or higher, and three project references of similar scope completed within the past seven years with minimum construction costs of $500,000 each. Prevailing wage rates apply to all workers. The contractor must achieve Substantial Completion within 365 calendar days after Notice to Proceed, with Final Completion 30 calendar days thereafter. Liquidated damages of $1,000 per calendar day apply for failure to meet the Substantial Completion deadline. Progress payments are made at 95 percent of earned sums with five percent retained; contractors may request an escrow account procedure for retained funds if the bid price exceeds $200,000. The County will award to the lowest responsive and responsible bidder. WSP Environment & Infrastructure is the Architect/Engineer. Contact Beth A. Cioni, Contracting Officer, at Beth.Cioni@loudoun.gov or (571) 627-7414 to request plans and specifications via secure file transfer.