Interstate 24
Hamilton County
The Tennessee Department of Transportation (TDOT) is completing Preliminary Engineering and Environmental Studies for improvements along the Interstate 24 corridor in Chattanooga, from the interchange with Interstate 59 in Georgia to the interchange with Interstate 124 (US 27) in downtown Chattanooga. The project is intended to increase capacity, relieve congestion, and improve operations along the corridor by widening I-24 from the current four-lane section to six lanes. TDOT plans to construct the first 2 sections from the Georgia State Line to Chattanooga.
Current Status: Preliminary engineering and environmental review is underway for the entire corridor.
Estimated construction start: The first two segments scheduled for construction, from the Georgia State Line to
Exit 175 and from Exit 175 to I-124, is scheduled in TDOT’s 10-Year Project Plan to begin construction in Fiscal Year 2027.
Estimated completion*: TBD
Funding Type: TDOT anticipates that a portion of this project will be funded through the Transportation Modernization Fund.
History and Background
A 2014 Corridor Study recommended a capacity project on I-24 within Hamilton County. TDOT completed a more detailed Technical Report in 2018 and begin Preliminary Engineering shortly after.
TDOT plans to deliver this project using the Construction Manager/General Contractor (CM/GC) delivery method. The construction contractor will be selected during the design process to facilitate coordination and arrive at a design that reflects constructability constraints, based on the contractor’s experience and expertise.
Environment
A single Environmental Assessment (EA) will be completed for the entire corridor. Environmental review is currently underway.
Key Project Milestones
| I-59 to Georgia State Line | |
|---|---|
| Preliminary Engineering | 2024 (underway) |
| Right-of-Way | TBD (awaiting funding) |
| Construction | TBD (awaiting funding) |
| Georgia State Line to Exit 175 | |
| Preliminary Engineering | 2024 (underway) |
| Right-of-Way | 2026 (projected) |
| Construction | 2027 (projected) |
| Exit 175 to I-124 | |
| Preliminary Engineering | 2024 (underway) |
| Right-of-Way | 2026 (projected) |
| Construction | 2027 (projected) |
Project Contacts
Rae Anne Bradley
TDOT Region 2 Regional Communications Officer (media)
Phone: (423) 510-1164
Email: Rae-Anne.Bradley@tn.gov
Michael O’Donnell
TDOT Region 2 Project Management
Phone: (423) 634-8622
Email: Michael.Odonnell@tn.gov
*Subject to change