CO 257 from Greeley Crossroads in Windsor will close for three weeks starting Sept. 5

Project Update

August 24, 2023 - Northeastern Colorado - 20-day closure needed for major bridge work

Windsor – CO 257 from north of 10th Street (US 34 Business in Greeley) to south of Crossroads Boulevard will close for 20 days for major bridge repairs over a drainage south of Crossroads Boulevard.

From 7 a.m. on Tuesday, Sept. 5, through 7 p.m. on Monday, Sept. 25, approximately two miles of CO 257 between the Town of Windsor and the City of Greeley will close to through-traffic.

Significant travel delays are expected. Drivers should plan ahead and seek alternate routes. Access to businesses and adjacent properties will be maintained from either side of the bridge (Mile Point 7.6), which is less than half of a mile south of Crossroads Boulevard.

Two signed detour routes will be in place:

  • The local detour will direct drivers around the west side of the closure using US 34, County Road 17 and Crossroads Boulevard
  • Commercial truck traffic must use either US 34, 83rd Avenue, CR 64 ½, CR 64 ¾ and Eastman Park Drive to the east or US 34, CR 17, Crossroads Boulevard, and Colorado Boulevard to the west due to size and weight restrictions on local roads
CO 257 resurfacing detour map
CO 257 resurfacing detour map. Work will be conducted from Sept. 5 to Sept. 25.

Crews will work extended hours and perform some activities over the weekend to complete this work as quickly as possible. Planned work includes extensive repairs to the bridge supports and deck, replacing bridge railing and paving the bridge. Vehicle traffic must stay off the bridge while work is performed. Any changes to the closure schedule will be posted on message boards, and on the project web page.

The Colorado Department of Transportation has coordinated closing CO 257 with the Town of Windsor’s CO 257 / Eastman Park Drive intersection project.

CDOT and Coulson Excavating Company are improving nearly five miles of CO 257 between US 34 Business (Mile Point 5.6) in Greeley and Walnut Street (MP 10.4) in Windsor this year. Over 75 percent of the planned work is now complete, including reconstructing CO 257 between Walnut Street and Eastman Park Drive. Northbound CO 257 between Crossroads Boulevard and Poudre Trail Drive reopened today after a four-week closure.

This project resurfaces CO 257 to provide a smoother driving surface and increase the longevity of the highway. Intersection improvements at Crossroads Boulevard enhance mobility by adding a second eastbound left turn lane to northbound CO 257. Safety improvements include installing new guardrail, roadside delineators and rumble strips. The project is on schedule to be complete this fall.

General work hours are Monday through Friday from 7 a.m. to 7 p.m. with occasional extended hours and weekend work. The construction schedule is weather-dependent and subject to change.

Stay Informed

Know Before You Go

Travelers are urged to “know before you go.” Gather information about weather forecasts and anticipated travel impacts and current road conditions prior to hitting the road. CDOT resources include:

Remember: Slow For The Cone Zone

The following tips are to help you stay safe while traveling through maintenance and construction work zones.

  • Do not speed in work zones. Obey the posted speed limits.
  • Stay Alert! Expect the unexpected.
  • Watch for workers. Drive with caution.
  • Don't change lanes unnecessarily.
  • Avoid using mobile devices such as phones while driving in work zones.
  • Turn on headlights so that workers and other drivers can see you.
  • Be especially alert at night while driving in work zones.
  • Expect delays, especially during peak travel times.
  • Allow ample space between you and the car in front of you.
  • Anticipate lane shifts and merge when directed to do so.
  • Be patient!

Download the COtrip App!

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