The Department of Defense, through the Department of the Army, is seeking sources for the construction of the B-21 Alert Facility at Ellsworth Air Force Base in South Dakota. This procurement falls under the NAICS code 236220, which pertains to Commercial and Institutional Building Construction, and aims to establish a facility that will support the operational readiness of the B-21 aircraft. The construction of this facility is crucial for enhancing the capabilities of the U.S. Air Force and ensuring the effective deployment of advanced military assets. Interested parties should reach out to Margarette Wolfe at Margarette.E.Wolfe@usace.army.mil or Brittany Gull at brittany.c.gull@usace.army.mil for further details regarding this sources sought notice.