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The INTERNATIONAL BOUNDARY AND WATER COMMISSION: U.S.-MEXICO has issued a Tender notice for the procurement of a Amistad Reservoir Plugging of Penstock 4 in the USA. This Tender notice was published on 23 Apr 2026 and is scheduled to close on 13 May 2026, with an estimated Tender value of Refer Document. Interested bidders can access detailed Tender information, eligibility criteria, and complete bidding documents by referencing TOT Ref No. 139978068, while the tender notice number is FY26PresolicitationNotice and Registering on the platform.
Procurement Summary
Country: USA
Summary: Amistad Reservoir Plugging of Penstock 4
Deadline: 13 May 2026
Posting Date: 23 Apr 2026
Other Information
Notice Type: Tender
TOT Ref.No.: 139978068
Document Ref. No.: FY26PresolicitationNotice
Competition: ICB
Financier: Self Financed
Purchaser Ownership: Public
Tender Value: Refer Document
Purchaser's Detail
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Email: Login to see tender_detailsLogin to see details Tender Details The United States Section of the International Boundary and Water Commission (USIBWC) is issuing a Solicitation (sealed bid) for the purpose of permanently plugging of Penstock #4 to eliminate the need for continued maintenance of penstock and irrigation gates. Most work takes place 190 feet below Amistad Dam's service deck. Contractor must manage the confined space and any water infiltrations. Documents
The major construction efforts include, but not limited to, the following tasks:
Installation of bulkhead
Removal and storage of irrigation gate
Installation of manlift and unwatering system
Lock out/tag out of penstock gate
Unwatering of the work area and verification of penstock gate seating
Installation of concrete forms, grouting tubes, and bypass pipe
Installation of concrete for penstock plug
Repair of penstock invert slab and removal of orifice structure
Grouting of penstock plug
Removal of upstream penstock form
Epoxy grouting of penstock plug, if required
Removal of manlift and unwatering system
Removal and storage of penstock gate
Reinstallation of hoists or other equipment moved to facilitate work
The following site constraints apply:
The working hours of the adjacent USIBWC facility are 7:00 am to 3:30 pm, Monday through Friday. The Contractor, and any subcontractors, shall only work onsite during these proposed hours. USIBWC facilities, including the dam, are closed during all Federal Holidays.
There is currently only 1 penstock bulkhead, located at Amistad Dam. The Contractor must move it via mobile crane. Use of the bulkhead must be coordinated with Amistad Field Office Area Operations Manager through the COR. The bulkhead is approximately 14.3 feet wide by 24.6 feet tall. The weight of the bulkhead gate with lifting beam is approximately 33, 000 pounds (16.5 tons).
Access to the site is made via Texas Spur 349. Texas Spur 349 bridge inventory rating is limited to HS-20. The load capacity ...
Notice ID: fy26presolicitationnotice
Department/Ind. Agency: international boundary and water commission: us-mexico
Sub-tier: international boundary and water commission: us-mexico
Office: internat boundary and water comm
Product Service Code: z2ka - repair or alteration of dams
NAICS Code: 237990 - Other Heavy and Civil Engineering Construction
Inactive Dates: may 13, 2026
Inactive Policy: manual
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