CDOT to close US Highway 85 Nov. 7-20 between Weld County Roads 86 and 88

November 1, 2016 - Northeastern Colorado/CDOT Region 4 - WELD COUNTY — The Colorado Department of Transportation will continue work to increase traveler safety on US 85 from Ault to the Wyoming state line this month.

Starting in Nov. 7, a full closure of US 85 will be in place with a signed detour. The closure is scheduled to last until Nov. 20.

The detour will take traffic off US 85 to Weld County Road 86, to Weld County Road 33, to Weld County Road 88. During the closure, crews will be replacing the bridge structure that is between County Road 86 and County Road 88. Crews will also widen the shoulders and place new and temporary pavement in this closure area. Following the closure, crews will continue to work on the structure through the winter months. Impacts to traffic during the winter will be minimal with an occasional lane closure.

Since the start of this project, crews have made significant progress, including the completion of the full roadway section improvements from Ault to Mile Point 301, new signage between Ault and the Wyoming border, installation of a new guard rail and bridge rail at various drainage structures north of Pierce, new rumble strip from Ault to the Wyoming border, and multiple shoulder improvements along US 85 north of Ault.

TRAVEL IMPACTS: Motorists and Travelers should expect a detour around the highway closure Nov. 7-20. Once open to the public, travelers should expect occasional lanes closures with delays up to 10 minutes.  Construction work hours will run from 7 a.m. to 5 p.m., Monday through Friday. Speed limits through the project work zone will be reduced to 40 mph at all times, including nights and weekends, due to new lane alignments. Width restrictions of 12 feet will be in place from 6 a.m. to 6 p.m. Motorists should exercise caution at all times while navigating the work zone.

For additional information about this project, call the project information line at 970-373-1584, email the team at 

[email protected], or visit the website and sign up for updates at For information on travel conditions, visit, sign up for GovDelivery or call 511. Updates are also available via Twitter @coloradodot and CDOT’s Facebook page at