Bridge replacement on US 285 over South Fork of South Platte postponed until Spring 2022

Travel Advisory

September 28, 2021 - Southeastern Colorado

CO 9 and US 285 bridge replacement map

PARK COUNTY — The Colorado Department of Transportation will postpone bridge replacement operations on US 285 over South Fork of South Platte between Fairplay and Antero Junction. To reduce impacts to I-70 detours following extended closures due to mudslides, CDOT has rescheduled construction on the US 285 bridge site until spring of 2022.

The project, located in Park County, began in late July 2021. There are three locations on the project (see map): Site A - US 285 at MP 172.2 to 172.5, Site B - CO 9 at MP 47.57 to MP 47.65, and Site C - CO 9 at MP 63.66 to MP 63.73. 

Site A consists of one bridge replacement as well as relieving wetland impacts and redirecting streams. Additionally, the bridge maintenance consists of bridge rail and guardrail replacement, as well as roadway reconstruction for the bridge approach. Work will require a three month full closure on US 285 with an offsite detour utilizing CO 9 and US 24.This location will resume in Spring 2022. 

Bridge maintenance at site B and C on CO 9 were completed in September 2021. Bridge maintenance at these locations consisted of bridge rail and guardrail replacement, as well as rebuilding the approaches to the bridge. This project will benefit motorists by making the bridge safer and improving the driving experience. Zak Dirt Inc. is the contractor for this project. 

Stay Informed 

For additional information about this project, contact the project team. 

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

Notice to Commercial Truckers and Through Travelers on US 50

West bound commercial truck drivers and other travelers should be aware of major closures due to the US 50 Little Blue Creek Canyon project, located west of Gunnison. Travel time between Sargents and the Little Blue Creek Canyon closure point is approximately 1.5 hours. Travelers are urged to plan ahead. Visit the project website for more information about the US 50 Little Blue Creek Canyon Project:

About CDOT

CDOT’s Whole System-Whole Safety program has one simple mission — to get everyone home safely. Our approximately 3,000 employees work tirelessly to reduce the rate and severity of crashes and improve the safety of all modes of transportation. The department manages more than 23,000 lane miles of highway, more than 3,000 bridges and 35 mountain passes. CDOT also manages grant partnerships with a range of agencies, including metropolitan planning organizations, local governments and airports. It also operates Bustang, the state-owned interregional express bus service. Gov. Jared Polis has charged CDOT to further build on the state’s intermodal mobility options.