The Colorado Department of Transportation plans to fully close a stretch of US 6 next week for routine maintenance.
The highway will be closed from Highway 93 to Highway 119 from 7 p.m. to 5 a.m. in both directions on Nov. 9 and Nov. 10.
CDOT says the closure is necessary to keep crews safe at night.
Workers will change the bulbs in the tunnels and clean out shoulders and ditches as needed.
CDOT recommends driver use Golden Gate Canyon to Highway 119, Interstate 70 to Central City Parkway or I-70 to Golden as detours.