Closures & Construction

Closures & Construction

Boulder County Transportation manages the construction projects for roads, bridges, pathways, drainage improvements and trails. The projects listed on this page are related to flood recovery and regularly scheduled roadway maintenance.

County Road Projects with Travel Impacts

The following county roadway projects result in travel impacts to both motorists and cyclists. All dates and times listed are weather dependent. Please visit this page regularly for updates on the projects listed and for information on new projects. View the Roadway Closure Map to see these projects and where roads/bridges remain closed due to the 2013 flood.

  • Dillon Road Flood Recovery Project
    • The project to reconstruct the culvert on Dillon Road between US 287 and 120th Street has begun
    • The road remains closed until the new culvert and roadway reconstruction is complete – May/June 2017
    • Project Contact – Andrew Barth – email – 303-441-1032

Cycling – Projects impacting cycling

  • IBM – LoBo Connector Trail – Construction Underway
    • Western portion complete – Eastern portion under construciton
    • Please do not use the unfinished trail as it is unsafe in its current condition
    • Info – Matt Wempe – email or 303-441-3900

View the Cycling Closure Map .

Other Non-County Construction and Events resulting in travel restrictions

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2525 13th Street
Boulder, CO 80304

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P.O. Box 471
Boulder, CO 80306