The Colorado Department of Transportation and Hamon Infrastructure will perform night work on the Interstate 25 between 136th and 120th avenues requiring a full closure of southbound lanes on Sept. 18 and Sept. 19, followed by another full closure of northbound lanes on Sept. 20 and Sept. 21. Detour routes are expected to have up to 25 minute delays.
All work will be done between 10 p.m. and 5:30 a.m. to create the least impact possible to travelers, CDOT spokeswoman Tamara Rollison said.
Monday and Tuesday nights, the detour for southbound traffic will take travelers west on 136th Avenue to southbound Huron Street then left onto eastbound 120th Avenue and back to southbound Interstate 25.
On Tuesday night, the left two lanes of northbound Interstate 25 will also be closed at 120th Avenue with only one lane open for traffic. Wednesday the left two lanes of southbound Interstate 25 will be closed at 136th Avenue with only one lane open for traffic.
Northbound Interstate 25 will see full closure starting at 120th Avenue both Wednesday and Thursday nights. The detour for southbound traffic will take travelers eastbound on 120th Avenue to northbound Washington Street, then left onto westbound 136th Avenue and back to northbound Interstate 25.
The closures are necessary for installation of new storm sewer infrastructure across I-25 that goes under all lanes of the highway. The construction work is apart of a $97.5 million project that is extending the Express Lanes from 120th Avenue to Northwest Parkway/E-470. CDOT says the project will improve safety, capacity and user choice in quickly developing metro area.
Rollins also wanted to remind commuters of upcoming closures on Arapahoe Road and Interstate 25 –a bridge replacement project—and possible others over the next few weeks. Visiting CDOT can give commuters a bigger picture of all the projects underway and what to expect for travel while warm weather persists.
“We still have a few weeks of warm weather and we will try to get as much construction done as we can while the ground is still warm,” she said. “Commuters can expect to see a big push to get it done.”



