SH 119 tunnel lighting project will cause some delays beginning June 1

May 29, 2015 - Northeastern Colorado/CDOT Region 4 - BOULDER COUNTY – The tunnel on SH119 west of Chapman Drive will be getting some new LED lighting from the Colorado Department of Transportation to improve both safety and efficiency while decreasing operational costs.

The changing of the lights will begin June 1 with normal working hours from 7 a.m. to 7 p.m. Monday through Friday through June 26. During this time, there will be some single lane closures and drivers should expect some delays.

On June 21 and 22, the tunnel will be closed intermittently from 9 p.m. to 6 a.m.

Anyone with questions or concerns, can call (844) 253-3185, option 4 or email