Major Corridor Studies

• US 6 - Clifton Access Management Plan
• SH 7 (Arapahoe Rd.) Environmental Assessment
• US 24 West Environmental Assessment
• North I-25 Environmental Impact Study
• Valley Highway (I-25) EIS
• I-25 Corridor - Lincoln Avenue to Castle Rock
• The New Pueblo Freeway - I-25 through Pueblo
• US 6 and Wadsworth Blvd. Environmental Assessment
• US 34 Environmental Assessment
• US 34 Business Environmental Assessment
• US 36 Environmental Impact Study
• US 36 Major Investment Study 
• US 50 in Southeast Colorado
• SH 60 Environmental Overview Study
• I-70 West of Parachute Environmental Assessment
• I-70 West Vail Pass Environmental Assessment
• I-70B West Study
• I-70 West Mountain Corridor PEIS
• I-70 East Corridor Environmental Impact Statement
• SH 82 Corridor
• SH 82 Corridor Optimization Plan
• SH 82, Entrance to Aspen Reevaluation
• SH 83/86 Corridor Optimization Plan (pdf document)
• SH 119/SH 52; Newsletter
• US 160 Environmental Impact Study
• US 287 at Lamar
• US 287 Environmental Overview Study
• SH 392 Environmental Overview Study
• SH 402 Environmental Assessment
• C470 Corridor Project
• E-470/I-70 Interchange Complex Environmental Assessment
• US 550 Environmental Assessment and Finding of No Significant Impact
• Arapahoe Road Corridor Study
• Colorado Rail Relocation Implementation Study
• Eagle County Airport Interchange
• Eastern Colorado Mobility Study
• Federal Blvd - Alameda to 6th - Environmental Assessment
• Gaming Area Access Environmental Impact Study
• Glenwood Springs South Bridge Environmental Assessment
• North Front Range Transportation Alternatives Feasibility Study
• North Metro Transportation Study
• Northwest Corridor EIS
• Ports to Plains Corridor Study
• Powers Corridor Improvement Project - Colorado Springs
• Wadsworth/Grandview Environmental Asessment

Active Construction Projects