Interstate 24 Bridge Replacement

Hamilton County

TRAFFIC ALERT: Weekend Closure Set for I-24 over Germantown Road in Chattanooga, Hamilton County - April 15, 2021 - Click link to view news release for details on the scheduled closure, expected traffic impacts, and planned detours. Detailed closure video can be viewed below.

NOTICE: As of Wednesday, March 31, 2021, Belvoir Avenue is now OPEN between the intersections at North Terrace and South Terrace (the section over I-24).   


Originally built in 1964, the bridges along Interstate 24 at Germantown Road and Belvoir Avenue in downtown Chattanooga have structural deterioration and deficiencies that need to be addressed.

TDOT plans to replace the two structures in a $32.9 million bridge replacement project using traditional techniques and an innovative process called Accelerated Bridge Construction (ABC). ABC requires short-term, total road closures to allow crews the space to do their jobs and the freedom to work around the clock. The closures will also allow construction to be finished in months instead of years.

The bridge work and the temporary closures will also allow crews to widen I-24 (for future use) and improve the area near the bridges.

This project will provide a safer commute for the roughly 114,000 vehicles that travel this section of I-24 every day, as well as the roughly 9,000 motorists who travel Belvoir Avenue.

Construction is expected to be finished in August 2021.


I-24 at Germantown Road with design rendering

For the bridge replacement on I-24 over Germantown Road, a portion of the interstate will be closed to all traffic for UP TO FOUR WEEKENDS in the spring of 2021. During the scheduled closures, I-24 will be closed between Germantown Road and Belvoir Avenue. North Terrace and South Terrace will be used as detour routes during the interstate closures. The detours will vary depending on the location of the work.

click image rendering for larger view

I-24 at Belvoir Avenue with design rendering

For the bridge replacement on Belvoir Avenue over I-24, a portion of the roadway will be closed to all traffic for the duration of construction. During the closure, Belvoir Avenue will be closed between the intersections at North Terrace and South Terrace. North Terrace and South Terrace will be used as detour routes during the closure.

click image rendering for larger view

Various parts of the project will be done at night and during off-peak travel times and will require temporary lane closures on the interstate, ramps, and adjacent streets. Any scheduled closures (excluding the weekend interstate closures and the Belvoir Avenue closure) will occur Sunday through Thursday, between 9:00 p.m. and 6:00 a.m.

Detours on local streets will be dependent upon specific bridge work. Bicycle and pedestrian traffic should follow directional signage near the work zone.


I-24 Belvoir Detour Map (PDF)
I-24 Germantown Detour (PDF)

NOTE: Additional Interstate and Local Access Maps are provided in the Timeline section for this project. Specific closure dates for each bridge location will be provided once scheduled by the contractor. Please check back for updates.

Email Updates

To receive email updates on this project, including lane closure information, follow the instructions below.

  • Click the email link: LISTSERV@LISTSERV.TN.GOV
  • In the message body, cut and paste the following information: Subscribe I-24-BRIDGE-REPLACEMENT
  • Send email. (no subject line necessary)