US Hwy 36 To Close

On Feb. 17, the Colorado Department of Transportation and Flatiron Constructors will begin work on US 36 near the Lion Gulch trailhead between Lyons and Estes Park.

Drivers can expect delays with intermittent single lane closures until March 9 when there will be a 30-day closure of US 36 to allow crews to permanently repair the road from the 2013 floods.

Three open house public meetings are planned to inform residents and commuters about the closure:

Feb. 24, 6-8 p.m. at the Pinewood Springs Fire Station, 61 Kiowa Road.

Feb. 25, 6-8 p.m. at the Lyons Community Library, 451 4th Ave.

Feb. 26, 6-8 p.m. at the Estes Park Town Hall Board Room, 170 MacGregor Ave.

US 36 Milepost 8 Project Detour Map

CDOT and contractor staff will be on-hand at each of the meetings to answer any questions people may have.

The closure will start at 12:01 a.m. on March 9 until the week of April 7, with crews working around the clock. Detours will need to be used. School buses and emergency responders will be able to get through. The project teams have been talking to these groups for months to plan for this closure.

“We know this closure is going to inconvenience people,” said Regional Transportation Director for Northeast Colorado for CDOT Heather Paddock. “But when we talked to officials from these communities and spelled out that the other alternative was to have 24/7 one-lane roads that would have lasted four months and backed deep into the tourist season, the choice was unanimous to do the closure and get done as soon as possible.”

Following the closure, there will still be work that needs to happen that will require occasional single-lane closures with delays through February 2021.


Beginning Feb. 17, there will be intermittent single lane closures, speed restrictions to 25 mph and width restrictions of 10 feet from mile point 7.6 to MP 8. Work will take place Monday to Friday from 7 a.m. – 7 p.m. resulting in a maximum of 15 minute delays. These slight delays will occur from Feb. 17 until February 2021 except during the full closure period. During the full closure, March 9 to the week of April 7 crews will be working 24/7. During this time no vehicles will be allowed through. Detours are Colorado Highway 7 and US 34.


The purpose of this project is to improve overall safety, reduce future closures and permanently fix the damages caused by the 2013 flood. The 2013 floods were devastating to this region, and this project will help decrease the impact of future floods. This will be accomplished by installing two major drainage structures under US 36. This will return the Little Thompson River back to its original, natural channel. This project will also increase safety for everyone using the roadway by increasing visibility around a blind corner, as well as increasing the size of the shoulder. The increased shoulder will make travel safer for cyclists and motorists, as well as increase space for safe snow removal. This will be accomplished through light blasting of the surrounding walls. This project is also being completed in conjunction with another project to install fiber optic cable for future cell towers in the area. Flatiron Construction will be installing conduit under the road to allow fiber optic to be run through later in the year. This will eventually increase cell coverage and add safety cameras to the corridor.


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