September 2026 News

CDOT will begin safety and traffic flow improvements to four intersections along US 287 in Broomfield County in September

Sept. 1, 2026 - Denver Metro/Central Colorado - Work includes adding extra travel lanes and making signal and pedestrian improvements

CDOT urges drivers to never leave vulnerable passengers alone in hot cars

Sept. 1, 2026 - Colorado - Vehicular heatstroke can occur in temperatures as low as 57°F

Thirty-five deaths with suspected impairment occurred during 100 Deadliest Days this summer, preliminary data shows

Sept. 3, 2026 - Colorado - Labor Day DUI enforcement period is underway

Summer travel season wraps up this weekend

Sept. 3, 2026 - Colorado - Leaf Peeping season ahead

All left turns at CO 119 and Hover Street in Longmont will close for construction starting Wednesday

Sept. 4, 2026 - Northeastern Colorado - Team will start traffic switch the evening of Sept. 8

Emergency Culvert Repair Project set to begin on Sept. 8

Sept. 7, 2026 - Denver Metro/Central Colorado - Work will occur along US Highway 85

Second phase of bridge maintenance on I-270 & US 36 bridge over I-25 in Adams County begins Sept. 10

Sept. 8, 2026 - Denver Metro/Central Colorado - Lane closures will change as improvements to bridge infrastructure progress

CDOT urges fall travelers to plan ahead for a popular and potentially earlier leaf-peeping season

Sept. 8, 2026 - Colorado - Never stop in travel lanes, park in designated turnouts

Fall Foliage Prediction Map 2026.png

I-25 cable rail installation north of Pueblo is complete

Sept. 8, 2026 - Southeastern Colorado - New median barrier improves safety along this vital corridor

CDOT and FHWA publish Final Environmental Impact Statement and Record of Decision for I-270 Corridor Improvements project

Sept. 8, 2026 - Denver/Central Colorado - Decision clears the way for design and construction on an aging six-mile highway segment linking I-25 and I-70

‘Every Click Counts’ coalition confronts Pueblo County’s persistent traffic safety issue, seat belts

Sept. 9, 2026 - Southeastern Colorado - New displays, fresh voices, and a proclamation signal urgency

CDOT begins resurfacing project on US 6 east of Fruita

Sept. 11, 2026 - Northwestern Colorado - Motorists can expect traffic impacts beginning Sept. 13

CDOT, Thornton & Broomfield celebrate completion of fourth mobility hub on I-25 north

Sept. 11, 2026 - Denver Metro/Central Colorado - The facility will provide people in northern Colorado with additional transit options and connections to other locations across the state

Extended weekend I-70 closures scheduled Sept. 18 and Sept. 25 to complete critical bridge repairs

Sept. 14, 2026 - Denver/Central Colorado - Expect significant delays up to 30 minutes or longer; alternative route advised