RFIs and Responses FR Seal Supply_4.13.26.pdf

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Draft Tube Bulkhead Seal Supply
Solicitation number
W9128F26QA048
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This is a Questions and Answers document for a federal contracting solicitation issued by the U.S. Army Corps of Engineers (USACE) for draft tube bulkhead seal supply at Fort Randall Dam, South Dakota under Solicitation #W9128F26QA048, dated 13 April 2026.

The document addresses a single inquiry regarding seal profile specifications and technical details that manufacturers have indicated appear outdated or based on legacy designs no longer supported by modern extrusion tooling. USACE clarifies that per Statement of Work paragraph 3.1.3, the seals must be fully molded rubber products and extruded seals will not be accepted. The response identifies that hydraulic gate seal manufacturers are capable of fabricating this type of molded rubber seal. The seals were last replaced in 1995, and USACE acknowledges that a custom mold may be required if the selected manufacturer has not previously fabricated this particular corner detail or if the original mold was not retained by the previous supplier.

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Other files

File Type Posted
Solicitation Amendment W9128F26QA0480001 SF 30.pdf PDF
Attachment 1 Statement of Work - FR DTB Seals Supply.pdf PDF
Attachment 2 Reference Drawings - Fort Randall DTB Seal Supply.pdf PDF
Attachment 3 Supply Contract Drawings v2 - Fort Randall Draft Tube Bulkhead Seal Supply.pdf PDF
Solicitation - W9128F26QA048 Professional Appearance.pdf PDF

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Questions and Answers

Draft Tube Bulkhead Seal Supply

Fort Randall Dam, SD

Solicitation #W9128F26QA048

13 April 2026

1. After sending the drawings and specifications to multiple rubber manufacturers, several of them have informed the seal profiles and technical details appear to be outdated or based on legacy designs that are no longer supported by modern extrusion tooling.

USACE Response: Per the statement of work paragraph 3.1.3, these seals are required to be fully molded; extruded seals will not be accepted. There are several “Hydraulic Gate Seal” manufacturers that are capable of fabricating this type of molded rubber seal. These seals were replaced in 1995. A custom mold may be required if the manufacturer has not fabricated this particular corner detail or if this mold was not saved by the previously supplier.

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