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  4. ›Z--GOGA 336173 - Repair Conzelman Road

U.S. Department Of The Interior·Colorado

Z--GOGA 336173 - Repair Conzelman Road

Closes 10/29/2026$1M – $5MRequest for Proposal
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Description

The National Park Service (NPS) is preparing to issue an RFP for repair work on Conzelman Road within the Golden Gate National Recreation Area, California. The contract will be a small‑business set‑aside, firm‑fixed‑price award valued between $1 million and $5 million, with a performance period of roughly 180 calendar days after a Notice to Proceed. Scope of work includes slope stabilization, construction of a concrete retaining wall, installation of deep‑pile foundations, and bridge railing. Proposals will be submitted electronically via SAM.gov; interested firms must maintain an active SAM registration and UEI. A pre‑proposal conference and site visit (virtual option) are anticipated prior to the proposal due date. • Location: Golden Gate National Recreation Area, CA • Scope: slope stabilization, concrete retaining wall, deep‑pile foundations, bridge railing • Contract type: Firm‑Fixed‑Price, Small‑Business Set‑Aside (NAICS 237310) • Estimated contract value: $1 M – $5 M • Performance period: 180 days after Notice to Proceed • Pre‑proposal conference & site visit (virtual option) expected • Submission via SAM.gov; active SAM registration required

Attached files

Contact

Shellie Murphy(Contracting Officer)

[email protected]

(720) 610-2690

Key dates

Opened
8/31/2026
Closes
10/29/2026
Duration
180 days

Last updated

Details

Type
Request for Proposal
Industry
Construction
NAICS
237310
Solicitation №
140P2026R0106

Budget estimate

$1,000,000 – $5,000,000

The solicitation indicates a total contract price range of $1 million to $5 million. Given the scope (slope stabilization, retaining wall, deep‑pile foundations, bridge railing) and a 180‑day performance period, the award is likely to fall near the mid‑range of that band, roughly $2 million‑$4 million, depending on contractor pricing, labor rates in California, and any optional scope changes.

AI estimate from the solicitation

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