Rehabilitation of Storm Water Management Detention Facilities

The County of Loudoun, Virginia is requesting bids for rehabilitation of three stormwater management detention facilities (BC26, BC38, BC124) under IFB, with bids due September 9, 2026 at 4:00 p.m. Eastern time. An optional virtual pre-bid conference is scheduled for August 13, 2026 at 1:00 p.m. via Microsoft Teams.

The scope comprises cleaning, surface preparation, and geopolymer lining of corrugated metal pipes across three separate county locations: a 72-inch diameter CMP at BC26 (approximately 85 linear feet), a 60-inch diameter CMP at BC38 (approximately 142 linear feet), and two 66-inch diameter CMPs at BC124 (approximately 205 linear feet total). The work includes removal of unsuitable soils and rock, with unit prices required for contingencies. Substantial completion is required within 180 calendar days after Notice to Proceed, with final completion 30 calendar days thereafter. Liquidated damages of $200 per consecutive calendar day apply for failure to meet the substantial completion deadline.

Bidders must hold Class A Virginia contractor licensure and provide a surety bond letter confirming bonding capacity at 100 percent of the estimated contract value from a surety rated A- or better by A.M. Best with Financial Size Category VII or higher. Four project references demonstrating extensive experience with geopolymer materials in similar stormwater detention structure rehabilitation projects completed within the last ten years are mandatory. Prevailing wage rates apply to all workers per Attachment 3. Performance and payment bonds of 100 percent of the contract price are required within 15 days of contract execution. Contract award is made to the lowest responsive and responsible bidder based on lump sum bid price plus unit price items. Payment terms are net 30 days with 95 percent of earned sums paid upon invoice and five percent retained until final completion; if the bid price exceeds $200,000, the contractor may elect to use an escrow account for retained funds. Specifications and plans dated August 9, 2022 with revisions dated February 23, 2026 were prepared by Johnson, Mirmiran & Thompson, Inc.