13 Jan 2023

DRAFT Supplemental Environmental Assessment (EA) and Unsigned Finding of No Significant Impact for Chickamauga Lock Replacement, Hamilton County, Tennessee

Expiration date: 2/10/2023

The U. S. Army Corps of Engineers, Nashville District has prepared a Draft Supplemental Environmental Assessment and unsigned Finding of No Significant Impact to evaluate effects to the human environment associated with placement of excess materials and incorporation of construction laydown areas associated with the Chickamauga Lock Replacement Project.

11 Apr 2022

Navigation Notice 22-13: Daylight closures scheduled at Chickamauga Lock

Chickamauga Lock at Tennessee River mile 471 in Chattanooga, Tennessee, is undergoing valve maintenance May 9-26, 2022. During this time, the lock is closing 7 a.m. to 5:30 p.m. daily with special consideration afforded to commercial tows.

10 Mar 2021

Navigation Notice 21-08: Chickamauga Lock closure, intermittent closures announced

Navigation Notice 21-08: Chickamauga Lock at Tennessee River mile 471 in Chattanooga, Tennessee, is closing 7 a.m. May 3 to noon May 24 to allow a contractor to complete a full electrical rehab on the lock operating system. The lock will then undergo intermittent closures during daylight hours May 24 to June 7 to allow the contractor to continue to install non-mission-critical equipment.

11 Sep 2020

Navigation Notice 20-38: Intermittent closures at Chickamauga Lock

Chickamauga Lock at Tennessee River mile 471 in Chattanooga, Tennessee, is closing intermittently from 9 a.m. to 4 p.m. Sept. 16 and 17, 2020 while Tennessee Wildlife Resource Agency performs mussel surveys at the tailwater lower approach to the lock. Mariners should stay clear of the area during this time period due to divers in the water. Contact Chickamauga Lock at 426-875-6230 or via Marine channel 13/16 with any questions or concerns.

7 Aug 2020

Navigation Notice 20-30: Intermittent closure of Chickamauga Lock scheduled Aug. 11-12, 2020

Intermittent closures are expected on the lower end of Chickamauga Lock at Tennessee River mile 471 due to a survey 7 a.m. to 5 p.m. Aug. 11 and 7 a.m. to 1 p.m. Aug. 12. No lockage on either day will be started that cannot be completed by 7 a.m. Contact the lock at 423-875-6230 for more information.