Projects by Region Curious about the projects and construction taking place near you? Navigate projects by region below. View Projects in Your Area Denver Metro/Central Colorado Northwestern Colorado Northeastern Colorado Southeastern Colorado Southwestern Colorado Project News Stay up-to-date on the latest project news and construction updates across the state. Sign Up for CDOT Alerts Subscribe to Alerts Sign up for project newsletters for updates on construction in your area or along your route. Sign Up for CDOT Project Alerts Major Interstate Projects View information and updates on some of the key interstate projects in Colorado. Browse Interstate Projects Central 70 (I-70 East) Eisenhower Johnson Memorial Tunnels Infrastructure Repairs I-25 South Gap I-70 Mountain Corridor I-70 Floyd Hill to Veterans Memorial Tunnels North I-25 Express Lanes Studies &Assessments All projects go through a study, environmental assessment and design phase to evaluate need and scope. Browse Studies & Assessments CO 119 Safety & Mobility Project Design CO 12 Southern Mountain Loop Planning & Environmental Linkages Study CO 21 (Powers Blvd.) & Research Parkway Interchange Design Eastern Timber Bridge Replacement Program in Rural Colorado I-70 Floyd Hill to Veterans Memorial Tunnels Improvements I-70 Exit 203 Interchange Improvements Study in Frisco I-25 Central Planning & Environmental Linkages Study O Street & US 85 Intersection Improvements Design Phase Santa Fe Drive Planning & Environmental Linkages Study | C-470 to I-25 US 34 at 35th & 47th Avenues Interchanges Design Study I-270 Corridor Improvements Study Previous Studies & Assessments Closures & Travel Impacts View travel impacts for active construction projects using this online reporting tool. Construction/Maintenance Portal Project Map Click on the region below to to be taken to projects specific to locations across the state. CDOT Region Map Mapa de regiones del Departamento de Transporte de Colorado