CO 170 Critical Culverts, Boulder County

About the Project:

Work consists of replacing a culvert with wing walls underneath the roadway and excavating and patching asphalt along the highway. 

Work will generally take place Monday through Friday, 7 a.m. to 7 p.m. at the intersection, with construction crews utilizing single lane closures and shoulder closures along CO 170 and Marshall Road. 24-hour single lane closures will be in effect utilizing traffic signals. Alternative routes along US 36 are advised. 

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Work Schedule:

• General working hours for this project are Monday through Friday, 7 a.m. to 7 p.m. 

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Traffic Impacts:

• Impacts include single lane closures and shoulder closures along CO 170
• Temporary traffic control
• Weekend work may occur