This Spring there will be some major traffic impacts on I-24 and I-75 in Chattanooga, TN taking place over several weeks, and in some cases may limit oversize load travel. The Tennessee Department of Transportation (DOT) released the following info to help detour around closures.
I-24 Bridge replacement over S. Germantown Rd
The first project is the I-24 Bridge replacement over S. Germantown Rd. The bridge will be replaced using Accelerated Bridge Construction, just like Fast Fix Four in 
I-24 at I-75 interchange modification
The other project is I-24 at I-75 interchange modification. The contractor will be utilizing weekend lane closures to complete concrete repairs on I-75. This will involve closing two lanes on either I-75 NB or I-75 SB, while keeping two lanes open. The contractor is allowed 3 weekends for I-75 NB and 4 weekends for I-75SB. Again, traffic will have limited lane widths and several traffic shifts, especially in the NB direction. There is a possibility of the contractor closing the I-75NB to I-24WB ramp to align I-75 NB is its new alignment. The contractor is trying to figure a way to do this under nighttime lane closures though. This project’s restrictions aren’t as critical, but worth the note, especially for oversize/overweight loads.
Construction Schedule Through April 2021
| Contract | Route | Start | End |
| DB1801 | I-75 NB | 3/19/2021 9PM | 3/22/2021 6AM |
| DB1801 | I-75 NB | 3/26/2021 9PM | 3/29/2021 6AM |
| DB1801 | I-75 SB | 4/09/2021 9PM | 4/12/2021 6AM |
| CMGC03 | I-24 Both Directions | 4/16/2021 9PM | 4/19/2021 5AM |
| CMGC03 | I-24 Both Directions | 4/23/2021 9PM | 4/26/2021 5AM |
| CMGC03 (Contingency for weather) | I-24 Both Directions | 4/30/2021 9PM | 5/02/2021 5AM |


