PRESOLICITATION for MUD MOUNTAIN DAM 9FT TUNNEL STEEL LINER REPAIR
Closed Pre-Solicitation Posted
This opportunity was awarded. See the award notice from , or the latest special notice from .
- Solicitation number
- W912DW26BA002
- Agency
-
ENDIST Seattle
US Army Corps of Engineers, Department of Defense
- Responses due
- Set-aside
- Total Small Business
Opportunity facts
- NAICS code
- 237990 Other Heavy and Civil Engineering Construction
- Place of performance
- Enumclaw, Washington 98022, United States
Notice details come from SAM.gov. Updated .
About this opportunity
The Department of the Army Corps of Engineers Engineering District Seattle is seeking contractors to restore the steel liner at the Mud Mountain Dam 9-foot tunnel inlet in Enumclaw, Washington. The work involves completely overlaying existing steel plates from the bellmouth to the steel transition ramp, including dewatering the tunnel, removing approximately 25 cubic yards of river sediment, installing new steel plates, welding joints, and injecting epoxy grout. Contractors must provide all shop drawings, as-built drawings, equipment, supplies, labor, facilities, tools, materials, and supervision while adhering to federal, state, and local codes and industry standards. The work is currently in pre-solicitation phase with industry questions due by October 8, 2025 at 11:00 AM PST. The formal solicitation W912DW26BA002 is expected to be available on SAM.gov no later than October 15, 2025, with the Period of Performance anticipated to be 300 days from the Notice to Proceed date.
This procurement is designated as a total small business set-aside under NAICS code 237990 for Other Heavy and Civil Engineering Construction. No incumbent contractors are identified in the current documentation. The estimated contract value ranges between $1,000,000 and $5,000,000, reflecting the magnitude of the specialized dam infrastructure repair work required. The project must be completed during a specific tunnel closure window from July 20, 2026 to September 30, 2026, with work restricted to Monday through Friday between 6:30 AM and 4:00 PM. The contractor must maintain dewatering capabilities ranging from 50 to 700 gallons per minute and be prepared for emergency demobilization if high river flows threaten the tunnel operations.
Notice text
Presolicitation Notice/Synopsis for the upcoming Effort IAW FAR 36.213-3 Invitation for Bids. This presolicitation/synopsis is a notification to the industry for an upcoming solicitation for the MMD 9FT Tunnel Steel Liner Repair.
Please reference Statement of Work for more details.
Proposal submissions are not required at this time. A formal solicitation notice to submit proposals will be posted at a later date. This requirement will be a small business set aside. The Government is open to questions or concerns from the industry related to this notice. All questions are due 08 Octobert 2025 at 11AM PST.
(1) Describe the proposed work in sufficient detail to disclose the nature and volume of work (in terms of physical characteristics and estimated price range);
Provide all shop drawings, as-built drawings, equipment, supplies, labor, facilities, tools, materials, and supervision and perform all work in strict accordance with this Statement of Work, the contract and specifications, all Federal, State and Local codes and regulations, and all applicable industry standards to: Restore the steel the liner at the Mud Mountain Dam 9’ tunnel inlet, specifically from the bellmouth to the steel transition ramp in accordance with these specifications.
The magnitude of construction for the anticipated contract is estimated to be between $1,000,000.00 and $5,000,000.00.
(2) State the location of the work;
The work will be performed on Mud Mountain Dam Enumclaw, Washington 98022.
(3) Include tentative dates for issuing invitations, opening bids, and completing contract performance;
Solicitation W912DW26BA002 is expected to be available on the Government Point of Entry, https://sam.gov , no later than October 15, 2025.
The Period of Performance is expected to be 300 days from date of Notice to Proceed. Exact Period of Performance will be provided in the solicitation.
(4) State where plans will be available for inspection without charge;
All plans and attachment will be included with the solicitation. No charge.
(5) Specify a date by which requests for the invitation for bids should be submitted;
Solicitation closing date, and opening of bids, is expected to occur on November 19, 2025. Exact time/ date will be provided in the solicitation.
(6) State whether award is restricted to small businesses;
This solicitation will be a Small Business Total Set-Aside. Only bids from Small Businesses will be considered.
(7)Specify any amount to be charged for solicitation documents;
Solicitation W912DW26BA002 will be available on the Government Point of Entry, https://sam.gov for no charge.
Files
| File | Type | Posted |
|---|---|---|
| Steel Liner Repair SOW (Draft).pdf |
Notice history
| Notice | Type | Posted |
|---|---|---|
| Mud Mountain Dam Steel Liner Repair | Award Notice | |
| ABSTRACT for Mud Mountain Dam Steel Liner Repair | Special Notice | |
| Mud Mountain Dam Steel Liner Repair | Solicitation | |
| This notice | Pre-Solicitation | |
| Sources Sought for MUD MOUNTAIN DAM 9FT TUNNEL STEEL LINER REPAIR | Pre-Solicitation | |
| Notice of Industry Day for MUD MOUNTAIN DAM 9FT TUNNEL STEEL LINER REPAIR | Special Notice |
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