Contract · Federal · Small Business Set Aside - Total

Z--C&O CANAL NATIONAL HISTORICAL PARK - FY26 REPAIR I

Agency: INTERIOR, DEPARTMENT OF THE / NATIONAL PARK SERVICE
Location: WASHINGTON, DC
Amount: Amount not listed
Posted: Sep 10, 2026
Set-aside: Small Business Set Aside - Total
NAICS code: 237990 - Other Heavy and Civil Engineering Construction look up NAICS codes
PSC code: Z2KB - Maintenance, Repair, or Alteration of Real Property (general category)

Timeline

Posted

Sep 10, 2026
Status

Closing soon

What contracts like this typically pay

est. $55K-$1.4M

Estimated from 28 similar past awards nationwide, NAICS 237990.

This is not this contract’s value. It’s what the government has actually paid for comparable work in the past. How we estimate this.

What this contract is for

Agency: INTERIOR, DEPARTMENT OF THE / NATIONAL PARK SERVICE
Location: WASHINGTON, DC
Set-aside: Small Business Set Aside - Total
NAICS: 237990 - Other Heavy and Civil Engineering Construction
Scope: Federal

Amendment P0001 is to revise solicitation and add additional attachments.

See Amendment P0001 for further details.

The Department of Interior, National Park Service, C&O Canal National Historical Park has a requirement for construction services for Repair to Inlet Lock 2 in Potomac, Maryland.

Work consists of replacing deteriorated lock gates and miter sill and repairing stone masonry, remove sediment and debris around the gates and locks, repairs to the berms upstream of Violette's Lock (Lock 23).

This is a solicitation for construction services prepared in accordance with FAR Part 15.

This announcement constitutes as the only solicitation (140P3026R0002) for Repair to Inlet Lock 2 and is issued as a Request for Proposal on Standard Form (SF)1442.

This requirement is a 100% total small business set-aside.

The associated NAICS code is 237990 - Other Heavy and Civil Engineering Construction.

The small business size standard is $45M.

The solicitation incorporates provisions and clauses by reference.

The full text of provisions and clauses may be accessed electronically at www.acquisition.gov The contract awarded as a result of this solicitation will be a firm-fixed price contract/award.

The estimated magnitude of this requirement is between $500,000 and $1,000,000.

Proposals are due September 18, 2026, at 12:00PM ED.

Official solicitation and documents

The full solicitation, any attachments, and the actual submission instructions live on the official listing, not on this page. Oppward summarizes public record data; it does not host or mirror the source documents.

View the official listing on SAM.gov

Oppward is an independent service and is not affiliated with, endorsed by, or sponsored by SAM.gov or any government agency. This page is a plain-English summary of public record data; the linked source above is the authoritative listing.

How to bid on this

This is a contract solicitation, not a grant. To bid, you submit a proposal (usually a price and a description of how you would do the work) directly to the government, through the channel the official listing specifies, not through Oppward.

Make sure your business has an active SAM.gov registration. You cannot be paid on a federal contract without one.
Read the full solicitation on the official listing above, especially the scope of work, not just this summary. Our guide to reading a solicitation walks through what to look for.
Check the set-aside listed above and confirm your business actually qualifies for it before you spend time on a proposal. See our guide to set-asides if the category is unfamiliar.
Submit your proposal by the deadline, using the exact submission method the official listing states. A technically on-time bid sent the wrong way is often treated as late.

Read our guide: Government construction and trades contracts: how they work