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  5. ›TMDL Areawide Impervious Surface Restoration Design-Build…

Maryland Department of Transportation·Maryland

TMDL Areawide Impervious Surface Restoration Design-Build Project

Closes 10/28/2026$5M – $75MRequest for Proposal
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Description

The Maryland State Highway Administration (SHA) is seeking design‑build firms to deliver MS4 Impervious Surface Restoration (ISR) credits across multiple watersheds in 15 Maryland counties. Each “Project” is a single physical site where the contractor will handle planning, design, permitting, construction, property acquisition, post‑construction monitoring, maintenance, and adaptive management. Proposers may submit one common Volume I (Statement of Qualifications) for all sites and separate Volumes II‑IV (Project Viability Form, Technical Proposal, Price Proposal) for each individual site. The SHA may award one or more contracts up to a total ceiling of approximately $75 million on a best‑value basis. Key deadlines: questions due September 10 2026; hard‑copy and electronic proposals due October 28 2026 (12 noon ET). The solicitation is an RFP with a double‑envelope format (technical and price). • Scope covers full design‑build delivery for ISR credits (planning, design, permitting, construction, acquisition, monitoring, maintenance). • Applicable to any watershed within SHA’s MS4 area (15 counties). • Single‑site projects; multiple sites can be proposed by the same contractor. • Mandatory submission of a common qualifications volume plus a separate technical/price package per site. • Total contract ceiling ≈ $75 million; individual project values not disclosed. • Questions must be submitted by 4 p.m. EST, September 10 2026; answers distributed via eMMA. • Proposals submitted to MDOT SHA, Attn: Jeffrey Folden, 707 N. Calvert St., Baltimore, MD.

Attached files

Contact

Catherine Agostino(Procurement Officer)

[email protected]

(410) 545-8500

Key dates

Opened
6/17/2026
Questions due
9/10/2026
Closes
10/28/2026

Last updated

Details

Type
Request for Proposal
Industry
Engineering Services
NAICS
541330
Solicitation №
BPM057567

Budget estimate

$5,000,000 – $75,000,000

The solicitation states a total contract ceiling of approximately $75 million for all awarded projects. Individual site values are not disclosed, but typical design‑build ISR projects can range from a few million dollars up to tens of millions depending on site size and complexity. Assuming a minimum viable single‑site award of about $5 million and a maximum possible award up to the full ceiling, the estimated budget range for a winning contractor is roughly $5 million to $75 million. Factors influencing the final amount include the number of sites awarded to the contractor, site-specific engineering and construction scope, and any additional maintenance or adaptive‑management obligations.

AI estimate from the solicitation

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