"The Colorado Department of Transportation (CDOT) and Federal Highway Administration (FHWA) (lead agencies) prepared this Final Programmatic Environmental Impact Statement (PEIS) to provide reader-friendly, concise information about the major findings of the Interstate 70 (I-70) Mountain Corridor National Environmental Policy Act (NEPA) process. This Final PEIS encompasses data gathered and presented over a ten-year period..."-- p. I-1.

"I-70 Mountain Corridor Programmatic Environmental Impact Statement (PEIS) addresses travel demand of the Corridor between Glenwood Springs and C-470, from approximately mileposts 116 to 260, and traverses five counties in Colorado: Garfield, Eagle, Summit, Clear Creek, and Jefferson. This PEIS includes an examination of the purpose and need, alternatives under consideration, affected environment, environmental consequences, cumulative impacts, and mitigation measures for proposed alternatives. The purpose of the PEIS is to take a broad view of the transportation issues and to develop alternatives to reduce future congestion and improve mobility within the Corridor. The PEIS provides an independent and systematic process of developing and analyzing the need, safety, implementation strategies, environmental sensitivity, and community values of alternatives for the Corridor at a Tier 1 level ... Subsequent National Environmental Policy Act (NEPA) environmental analysis, documentation, and review will be prepared at the Tier 2 level to enable decisions regarding site-specific, project-level details on alignments, high- capacity transit technology, project impacts, costs, and mitigation measures after a preferred alternative has been identified"--Abstract.

"The Colorado Department of Transportation and Federal Highway Administration prepared this Revised Draft Programmatic Environmental Impact Statement to provide reader-friendly, concise information about the major findings of the I-70 Mountain Corridor National Environmental Policy Act (NEPA) process. This Revised Draft ... replaces the 2004 Draft."--Abstract.

In a cooperative effort, the Federal Highway Administration (FHWA), the Colorado Department of Transportation (CDOT), and the City and County of Denver (CCD) have prepared this Environmental Assessment (EA) for a proposed new interchange on Interstate 70 (I-70) with Central Park Boulevard (CPB) in Denver, Colorado. The proposed project will create new access to I-70, constituting a Federal Action subject to the National Environmental Policy Act (NEPA). This EA evaluates the socioeconomic and environmental impacts of the project as well as the traffic impacts to I-70 at the proposed interchange location.