Belle Chasse Tunnel now permanently closed; traffic shift in effect
Wednesday, December 20, 2023 at 8:16:05 AM
BELLE CHASSE, LA. - The Belle Chasse Bridge and Tunnel Replacement Project announces the permanent closure of the Belle Chasse Tunnel effective today, Wednesday, 12/20/23. The closure is now in place.

Vehicles traveling southbound on LA 23 will now utilize the constructed portion of the new Belle Chasse Bridge. The existing Belle Chasse Bridge will be utilized when traveling northbound on LA-= 23 until the final completion of the new Belle Chasse Bridge.

In addition, there will be a temporary detour of the right southbound turn from Engineers Road onto LA 23. Between Thursday, December 21, 2023, and Monday, January 29, 2024, motorists wishing to turn right from Engineers Rd. onto LA 23 will need to turn left from Engineers Rd onto LA 23 and use the Burmaster St. U-turn to then travel southbound on LA 23.

Tolling does not begin on the new Belle Chasse Bridge until its final completion, slated for Spring 2024. Public information regarding tolling for the new Belle Chasse Bridge will be disseminated starting January 2024.

To sign up for project updates, please visit and provide your email address for notifications to go directly to your inbox as the new bridge construction continues. Interested parties can submit questions to the project team via email at You can also follow the project on Facebook @BelleChasseBridge and Twitter @Bridge_BC.