I-70 Frontage Road - East of Idaho Springs
What is the I-70 Frontage Road Improvements Project?
The Colorado Department of Transportation (CDOT) has initiated the I-70 Frontage Road Improvements project as part of the commitments from the I-70 Mountain Corridor Programmatic Environmental Impact Statement (PEIS). The goal of this project is to develop context sensitive solutions (CSS) for the Frontage Road to provide enhanced safety and mobility for vehicles, pedestrians, and bicyclists. Project ideas will be developed and studied in coordination with the Project Leadership Team and will be evaluated for environmental impacts in a Categorical Exclusion (Cat Ex).
The frontage road project will be developed in two phases:
The final Cat Ex will provide environmental clearance for both Phase I and Phase II of the Frontage Road.
How does this project interact with the Twin Tunnels Environmental Assessment (EA)?
The I-70 Frontage Road project is independent of the Twin Tunnels project, but elements of the Frontage Road are expected to be used as part of the detour during construction of the Twin Tunnels project. Both projects have similar core values and stakeholders. Phase I of the I-70 Frontage Road project is state funded and will provide immediate safety benefits to the existing Frontage Road with construction starting in Spring/Summer 2012. It is anticipated that Phase I of the Frontage Road project will be completed in time for use as part of the detour for Twin Tunnels improvements.