I-25 South Gap Project: I-25 from Castle Rock to Monument

Castle Rock to Monument

Colorado Department of Transportation

Project Lead:
CH2MHill (Now Jacobs)

Project Type:
Socioeconomic Impacts, NEPA

The Project:
Congestion, accidents, and delays have grown significantly along the 18 mile stretch of Interstate 25 from south of Castle Rock to Monument.  It is the only four lane section of the highway connecting Colorado’s two largest cities, Denver and Colorado Springs.  With forecast growth in the area, these issues are forecast to worsen.  Ch2MHill (now Jacobs) and team members, including ArLand, were selected to help CDOT conduct an environmental assessment of potential alternatives within record time.

Our Role:
ArLand provided a technical memo for the NEPA study describing the socioeconomic benefits of improvements to I-25 to the businesses and residents in the southern Denver and northern Colorado Springs region (CDOT Regions 1 and 2).  Topics focused on significant business and economic clusters, the movement of freight, and the benefits and costs of increased mobility in the region, which is among the most economically dynamic areas of the state.  It also participated in a number of public meetings for the project.  The analysis was part of the NEPA documentation for the project.

View All Projects