College Gardens Water Main Replacement

The Washington Suburban Sanitary Commission is soliciting sealed bids for College Gardens Water Main Replacement in Prince George's County and Robinwood, Maryland, with responses due July 8, 2026 at 2:00 p.m., questions due June 17, 2026 at 2:00 p.m. The scope includes replacement of approximately 589 feet of 4-inch, 46 feet of 6-inch, 3,760 feet of 8-inch, and 73 feet of 10-inch water main; relocation of approximately 108 feet of 4-inch, 283 feet of 6-inch, and 5,432 feet of 8-inch water main; and installation of approximately 4,620 feet of water house connections across Princeton Place, Auburn Avenue, Duke Street, Baylor Avenue, and surrounding roads.

Qualified contractors must demonstrate a minimum of five miles of water main installation experience (3-inch to 14-inch diameter) completed over the last five years using the contractor's own crews, with at least 2.5 miles of ductile iron pipe. Additional mandatory qualifications include an OSHA Total Recordable Incident Rate below 2.67 for the previous three years, certified traffic control personnel, erosion and sediment control supervision, pressure tapping certification, and chlorination/de-chlorination experience as specified in the contract documents.

Bids must be submitted electronically through WSSC's eProcurement Portal at https://procurement.opengov.com/portal/wsscwater. Bidders must submit Exhibit A Project Experience Summary with supporting documentation, certificates of insurance, completed vendor questionnaire, and a bid bond. All pricing must be firm for the duration of the contract. The contract imposes 5% retainage in accordance with the Maryland Little Miller Act, with final payment due within 30 days of project completion and acceptance. The contractor is responsible for all mobilization, demobilization, materials, labor, equipment, traffic control, and erosion control costs, with unit pricing on an 8-hour daily basis reflecting all-inclusive costs. The contract award will follow Maryland Public Utilities Code provisions for competitive sealed bidding.