Expect Significant I-25 Closures Overnight Sept. 18-21 for Express Lanes Construction in Broomfield County
Prepare for traffic impacts to I-25, Huron Street and Washington Street from 10 p.m. to 5:30 a.m.
DENVER—From Monday, Sept. 18 through Thursday, Sept. 21, crews will close I-25 between 136th Avenue and 120th Avenue as they install new storm sewer infrastructure beneath the highway.
Expect delays of up to 25-minutes on detour routes.
Southbound I-25 Closure at 136th Avenue:
10 p.m. - 5:30 a.m. overnight Monday, Sept. 18 and Tuesday, Sept. 19
- Tuesday night: the left two lanes of northbound I-25 will be closed at 120th Avenue with only one lane open for traffic.
- Detour: Head west on 136th Avenue to southbound Huron Street, and turn left on to eastbound 120th Avenue to I-25 southbound.
Northbound I-25 Closure at 120th Avenue:
10 p.m. - 5:30 a.m. overnight Wednesday, Sept. 20 and Thursday, Sept. 21
- Wednesday night: The left two lanes of southbound I-25 will be closed at 136th Avenue with only one lane open for traffic.
- Detour: Take eastbound 120th Avenue to northbound Washington Street, then turn left on to westbound 136th Avenue to northbound I-25.
Traffic Impacts
- Expect delays and follow detours as directed.
- Expect delays of up to 25-minutes on detour routes, depending on traffic.
- Crews have scheduled late-night weekday work to minimize traffic delays.
Stay Informed
- Project website
- Project hotline: 720-737-5118
- Project email: [email protected].
- See scheduled lane closures.
- Get real-time road conditions on COtrip, or by dialing 511 from anywhere in the state.
- Follow us on Facebook or Twitter
The $97.5 million project is extending Express Lanes on I-25 from 120th Avenue to Northwest Parkway/E-470. The project will add capacity and construct a new asphalt surface from 120th Avenue to Colorado Highway 7. The project will improve safety, capacity and user choice in a rapidly developing region.
