# Little Mountain Testing Facility (LMTF) Progress-Design-Build OT Canonical: https://abierto.us/opportunities/w91238269a001 - Solicitation number: W91238269A001 - Notice type: Solicitation (first published as special notice) - Status: Closed. Deadline was August 12, 2026 at 4:00 PM EDT - Department: Department of the Army - Agency: Department of the Army - Contracting office: W075 Endist Sacramento (W91238) - NAICS: 236210 Industrial Building Construction - Product or service code: Y1AZ Construction Of Other Administrative Facilities And Service Buildings - First posted: April 30, 2026 - Last posted: August 5, 2026 - SAM.gov: https://sam.gov/workspace/contract/opp/7e7e526a000049eaa18a4b29607ac3ef/view ## Description Amendment 0003 - The reason for this amendment is to update Division 01 LMTF RRF HILL AFB FINAL DIV01 Spec 24JULY2026 269A001 and provide information regarding the site visit. Amendment 0002 - The reason for this amendment is to incorporate the RFIs and provided additional attachments under Project Specific Requirements. Amendment 0001 - The reason for this amendment is to update DIV 01 Specs, file name: LMTF_RRF_HILL_AFB_FINAL_DIV01_Specs_08JULY2026_269A001. This is the Official Posting of the Program Solicitation for Little Mountain Testing Facility (LMTF) Progress-Design-Build OT.The U.S. Army Corps of Engineers (USACE), Sacramento District (SPK) is issuing Program Solicitation No. W91238-26-9-A001 as an Initial Announcement for the Little Mountain Test Facility (LMTF) Radiation Research Facility at Hill Air Force Base, Utah. The project will be awarded under the authority of Title 10 U.S.C. ? 2808a using a Progressive Design-Build (PDB) Other Transaction (OT) Agreement. The selected Design-Builder will perform Phase 1 Design and Pre-Construction Services, with the potential for Phase 2 Final Design and Construction through modification upon successful negotiation of a Fixed-Price (FP) or Guaranteed Maximum Price (GMP), subject to required approvals and funding availability. The project, classified under NAICS 236210 and PSC Y1AZ, has an estimated Not-to-Exceed (NTE) value of $111.5 million. The new Radiation Research Facility is required to modernize testing capabilities and provide dedicated space for critical equipment supporting the Sentinel weapon system while ensuring uninterrupted testing operations for the existing Minuteman III system. The Government intends to make a single OT award but reserves the right to select, not select, or continue discussions with any Design-Builder at any stage of the solicitation process. **Bidding Inquiry System:** All questions regarding this Program Solicitation must be submitted through the ProjNet Suite Bidder Inquiry System at https://www.projnet.org/projnet. **Solicitation Number:** **W91238-26-9-A001 Bidder Inquiry Key:** DSK6IU-VBHJM5 See all attachments in PIEE. ## Publications - April 30, 2026: Special notice, due May 11, 2026 at 6:00 PM EDT. Notice 65598a1983ce45c297a21da85d47d767. https://sam.gov/workspace/contract/opp/65598a1983ce45c297a21da85d47d767/view - April 30, 2026: Special notice, due May 11, 2026 at 6:00 PM EDT. Notice 68218df96e0440fca510ad0bfe893a3a. https://sam.gov/workspace/contract/opp/68218df96e0440fca510ad0bfe893a3a/view - May 5, 2026: Special notice, due May 11, 2026 at 6:00 PM EDT. Notice 90d79a32c3cc451393681eec069f1427. https://sam.gov/workspace/contract/opp/90d79a32c3cc451393681eec069f1427/view - May 8, 2026: Special notice, due May 11, 2026 at 6:00 PM EDT. Notice b59fc43a818c4fa6b87c3c681849c2d2. https://sam.gov/workspace/contract/opp/b59fc43a818c4fa6b87c3c681849c2d2/view - May 15, 2026: Special notice, due May 29, 2026 at 4:00 PM EDT. Notice dbbed91d443645e2894971c2f9168352. https://sam.gov/workspace/contract/opp/dbbed91d443645e2894971c2f9168352/view - May 16, 2026: Special notice, due May 29, 2026 at 4:00 PM EDT. Notice a71da592c34b4c0f917c22aeeccc86f2. https://sam.gov/workspace/contract/opp/a71da592c34b4c0f917c22aeeccc86f2/view - May 28, 2026: Presolicitation, due May 29, 2026 at 4:00 PM EDT. Notice 064e270c662648b7a0dc159879224dc7. https://sam.gov/workspace/contract/opp/064e270c662648b7a0dc159879224dc7/view - May 28, 2026: Special notice, due May 29, 2026 at 4:00 PM EDT. Notice 4c332064dab3499c8e94a5cb9f646d81. https://sam.gov/workspace/contract/opp/4c332064dab3499c8e94a5cb9f646d81/view - May 28, 2026: Special notice, due May 29, 2026 at 4:00 PM EDT. Notice 7e6aa2a7331d4e82ab1331f75d4597ac. https://sam.gov/workspace/contract/opp/7e6aa2a7331d4e82ab1331f75d4597ac/view - May 29, 2026: Presolicitation, due June 5, 2026 at 4:00 PM EDT. Notice 4e9587a2c77348928c359ba479c40438. https://sam.gov/workspace/contract/opp/4e9587a2c77348928c359ba479c40438/view - June 2, 2026: Presolicitation, due June 5, 2026 at 4:00 PM EDT. Notice fea8e1eab42545e18508f3a8e67b936b. https://sam.gov/workspace/contract/opp/fea8e1eab42545e18508f3a8e67b936b/view - July 7, 2026: Solicitation, due July 29, 2026 at 5:00 AM EDT. Notice aebbc068cf744ad298c78851a2321061. https://sam.gov/workspace/contract/opp/aebbc068cf744ad298c78851a2321061/view - July 9, 2026: Solicitation, due July 29, 2026 at 5:00 AM EDT. Notice 722152d60dc04469a4e500529649fd18. https://sam.gov/workspace/contract/opp/722152d60dc04469a4e500529649fd18/view - July 28, 2026: Solicitation, due August 12, 2026 at 5:00 PM EDT. Notice 4efebd4654aa4d4487966ee11cfd8b37. https://sam.gov/workspace/contract/opp/4efebd4654aa4d4487966ee11cfd8b37/view - August 5, 2026: Solicitation, due August 12, 2026 at 4:00 PM EDT. Notice 7e7e526a000049eaa18a4b29607ac3ef. https://sam.gov/workspace/contract/opp/7e7e526a000049eaa18a4b29607ac3ef/view ## Points of contact - Natalia Gomez, natalia.gomez@usace.army.mil - Michelle A Spence, michelle.a.spence@usace.army.mil, 9163476704 --- Source: SAM.gov Contract Opportunities bulk extract. Confirm deadlines on SAM.gov before responding. Cite https://abierto.us/opportunities/w91238269a001.