Bid guide
How to bid on C&O Canal National Historical Park FY26 Repair I
What the agency is buying
The National Park Service, part of the Department of the Interior, is seeking construction services for repairs to Inlet Lock 2 at C&O Canal National Historical Park in Potomac, Maryland. This project involves replacing deteriorated lock gates and the miter sill, repairing stone masonry, and removing sediment and debris around the gates and locks.
Additionally, the work includes repairs to the berms upstream of Violette's Lock (Lock 23). This is a firm-fixed price contract with an estimated value between $500,000 and $1,000,000.
Key dates and deadlines
This solicitation was published on August 19, 2026. A pre-proposal site visit is scheduled for Tuesday, September 1, 2026, at 9:00 AM Eastern Daylight Time. The site visit will take place at C&O Canal National Historical Park, 13948 Violettes Lock Rd., Potomac, MD 20854.
Proposals are due by September 18, 2026, at 12:00 PM Eastern Daylight Time. All proposals must be submitted by this deadline.
Who this opportunity suits
This opportunity is a 100% total small business set-aside, making it suitable for small businesses specializing in construction services. The relevant NAICS code is 237990, which covers Other Heavy and Civil Engineering Construction. The small business size standard for this NAICS code is $45 million.
Firms with experience in historical preservation, waterway infrastructure repair, masonry, and civil engineering construction will find this opportunity relevant.
How to respond
This is a Request for Proposal (RFP) issued as solicitation number 140P3026R0002, prepared in accordance with FAR Part 15. The solicitation uses Standard Form (SF)1442. You can access the opportunity on the portal by clicking the “View original source” link. If the first click leads to the portal’s homepage, click it again to go directly to the bid.
You may need a free account on the portal to view all documents, though this is not always required. The solicitation incorporates provisions and clauses by reference, which can be accessed electronically at www.acquisition.gov.
Tips for preparing a competitive response
Attend the pre-proposal site visit on September 1, 2026. This is a crucial step to understand the full scope of work and site conditions, which can inform your proposal and pricing. Pay close attention to the specific repair requirements for lock gates, miter sills, stone masonry, and berms.
Ensure your proposal clearly addresses all aspects of the work described, including sediment and debris removal. Since this is a firm-fixed price contract, accurately estimating costs and potential challenges is vital. Highlight any relevant experience your firm has with similar historical or waterway infrastructure projects.
See the live bid — deadline, agency details, and how to respond
Dates and requirements can change via addenda; always verify on the bid page and at the original source before responding.
View this bid on BiddingSimpleThis guide was prepared by BiddingSimple from the solicitation’s public posting. It is not official guidance from National Park Service; the original posting controls.

