Drainage and Stormwater Improvement Construction MAC IDIQ

This solicitation is for a Multiple‑Award IDIQ contract to design, install, rehabilitate, and repair drainage and storm‑water management facilities throughout the District of Columbia and adjacent counties. Bidders will price a series of lump‑sum, prorated line items (e.g., LID under‑drain connections, stream‑flow maintenance, turbidity and vibration monitoring, traffic‑control devices, demolition, and field layout) using the revised Master Unit Price Book (Attachment J13). The award will be made on a lowest‑cost basis for individual task orders, with minority and female workforce participation goals and an on‑the‑job‑training component. • Scope includes civil‑engineering construction, monitoring, and related specialty services for storm‑water infrastructure. • Pricing must follow the updated J13 unit‑price book and be submitted by March 18 2026, 11:00 AM EST. • Contractor must meet workforce participation goals (28 % minority, 6.9 % female) and provide 18 OJT trainees over the life of the contract.