MileCheck Highway Report

MileCheck Highway Report: Colorado, September 2026

by MileCheck · October 1, 2026

What Colorado's department of transportation (DOT) feed showed in September 2026. Part of the national MileCheck Highway Report, September 2026.

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How we got these numbers: These counts come from a daily copy of Colorado's department of transportation (DOT) feed, Sept. 1 through Sept. 30, 2026. Each alert was counted once. An alert posted and removed between two daily copies is not counted. Not all states report the same data. Fire figures are as of Sept. 30, 4 PM Pacific.

65crashes reported in September

2closures on the feed

849roadwork records on the feed

6wildfires on the national list, as of Sept. 30, 4 PM Pacific

Crashes

65 crashes were reported in Colorado in September.

Routes with the most crash alerts

I-25 — 23
I-70 — 11
US-50 — 4

Closures and roadwork

2 closures and 849 roadwork records were on Colorado's feed in September, out of 990 alerts of all types.

The routes with the most alerts were I-70, I-25 and SH-470.

Winter closures

Roads that usually close for winter

CO-82, Independence Pass — Usually closes late October or early November and reopens the week before Memorial Day weekend. Source
US-34, Trail Ridge Road (NPS park road) — Park road. Usually closes mid to late October and reopens the last week of May. Source

Timing comes from each agency's own page. Exact dates depend on snow. We update this list each month through winter.

Wildfires

Colorado had 6 fires on the national wildfire list as of Sept. 30, 4 PM Pacific.

Largest fires, as of Sept. 30, 4 PM Pacific

Aspen Acres (Custer County), 102,004 acres, 82% contained
Gold Mountain (Ouray County), 39,747 acres, 92% contained
Willow (Lake County), 7,359 acres, 80% contained
Elk (Hinsdale County), 7,257 acres, 73% contained

Thank you to the firefighters and crews who worked these fires all season.

Live fire perimeters are at milecheckapp.com/fire.

See the national report or another state.

The live version is in the app.

MileCheck shows state DOT feeds for crashes, closures, and delays in all 50 states, British Columbia, Alberta and Manitoba as they are published, with your nearest mile marker.

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Built from MileCheck's archive of state DOT road feeds. A new Highway Report comes out at the start of every month.