Rehabilitation of mall tunnel (TN #1142)

The District of Columbia Department of Public Works received a $1.37 million formula grant from the Federal Highway Administration (FHWA) under the Highway Planning and Construction program (CFDA 20.205) on September 12, 2025, for the rehabilitation of the Mall Tunnel (TN #1142). The project will deliver comprehensive infrastructure restoration services to ensure the continued state of good repair of this critical transportation facility. Key deliverables include replacement of traffic lights and lighting systems, repair of deteriorated concrete walls and ceilings, replacement of the fire detection system, and replacement of deteriorated ceiling panels, among other rehabilitation efforts identified through condition assessment. The project is scheduled for completion by August 30, 2027.

As a local government entity responsible for managing Washington, D.C.'s transportation infrastructure, DC Public Works is administering this formula grant award to address structural and safety deficiencies in the tunnel. The Highway Planning and Construction program, authorized under the Infrastructure Investment and Jobs Act, provides federal funding to states and local governments for the preservation and improvement of highways and related transportation infrastructure. This award represents typical FHWA support for transportation facility rehabilitation to maintain safe and functional public infrastructure.

Project description

Condition assessment has identified important rehabilitation efforts required for the continued state of good repair of the mall tunnel. This project will fund these rehabilitation efforts including, replacement of traffic lights and lighting systems, repair to deteriorated concrete walls and ceilings, replacement of the fire detection system, and replacement of deteriorated ceiling panels, among other items.