Southbound lanes of Battery Street Tunnel to close overnight Thursday, June 13
Crews working for the Washington State Department of Transportation will close all southbound lanes of the State Route 99 Battery Street Tunnel at 10 p.m. Thursday. Lanes will be reopened by 5 a.m. Friday. Northbound lanes will remain open.
Thursday, June 13:
- All southbound lanes of SR 99 between Denny Way and the Elliott Avenue on-ramp will be closed from 10 p.m. Thursday to 5 a.m. Friday.
- Use the Elliott Avenue on-ramp to southbound SR 99.
The closure will allow crews to install ground monitors as part of a comprehensive program to protect structures above and near the SR 99 tunnel route.