Stormwater and Water Quality Design

Delaware DOT is seeking two qualified consulting firms to provide comprehensive engineering design and related professional services for storm‑water and water‑quality projects, including planning, detailed design, regulatory compliance, and construction support under the NPDES Section. The work will be performed under a three‑year cost‑plus fixed‑fee agreement with the possibility of two one‑year extensions, and each award cannot exceed $2‑3 million. Proposals must be submitted electronically via the Bonfire portal by the September 10, 2026 deadline. • Scope includes planning studies, watershed prioritization, BMP design (standard and new‑technology), stream/outfall restoration, and construction‑phase support (schedules, utility coordination, contract preparation, field review). • Technical requirements mandate use of MicroStation/Inroads and adherence to DelDOT CADD standards, AASHTO, and state environmental regulations (DNREC, MS4, TMDL). • Submissions must include a completed SF‑330, certifications, and both original and redacted PDFs; joint ventures are not permitted.