The Department of Defense, specifically the Department of the Army through the W072 Endist Louisville office, is soliciting proposals for the Phase 4-Johnsontown Closure Vault project. This procurement involves construction services categorized under Other Heavy and Civil Engineering Construction, focusing on the construction of miscellaneous buildings. The successful contractor will play a crucial role in ensuring the integrity and functionality of the closure vault, which is essential for maintaining operational standards. Interested parties can find more details by logging into the PIEE system and searching for the solicitation number W912QR42204152. For inquiries, Amber Drones can be contacted at amber.l.drones@usace.army.mil or by phone at 502-315-6479.