CO 66 to close between WCR 19 and 21 for three days on March 19

Project Update

March 13, 2024 - Northeastern Colorado - Culvert work needs to be done; detours use county roads

Weld County – Colorado Highway 66 between Weld County Road 19 and WCR 21 will close for up to three days starting at 7 a.m. on March 19 to replace culverts and irrigation systems before highway resurfacing later this spring.

The signed detour route will direct drivers north to bypass the closed work area using WCR 19, WCR 34 and WCR 21. Access to adjacent properties within the closure will be provided.

Before and after the full closure, flaggers will continue to alternate traffic in a single lane from 8 a.m. to 3 p.m, Monday through Friday, as needed. Drivers should plan on travel delays of up to 10 minutes. An oversized vehicle width restriction of 10 feet is in place.

CDOT is coordinating traffic control with at least two other projects on the CO 66 corridor between Mead and Platteville this construction season. A critical culvert replacement project is starting up soon less than a mile east of the CO 66/WCR 21 intersection project. Overnight (9 p.m. to 5 a.m.) closures of CO 66 are expected for three consecutive nights between Weld County Road 21 and WCR 30½ to replace two culverts. More information on overnight CO 66 closure dates will follow. Drivers are encouraged to take alternate routes, use extra caution in the work zones, and follow all signs and markings.

Construction schedules are weather-dependent and subject to change.

About the Project

This work is part of a safety improvement project at the intersection of CO 66 and WCR 21. After the drainage and irrigation systems are reconstructed, the intersection will be widened to add left turn lanes on all approaches. The entire work area will be resurfaced with asphalt pavement to provide a smoother riding surface and increase the longevity of the highway. CR 21 stop signs will be upgraded to flashing light displays for improved visibility. Project completion is anticipated in late summer.

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