Twin tunnels environmental assessment and section 4(f) evaluation, Clear Creek County
Subtitle: submitted pursuant to 42 U.S.C. 4332 (2)(c), 23 U.S.C. 128(a), Executive Orders 11990, 12898, and 13112
By: by the U.S. Department of Transportation , Federal Highway Division Administration, and Colorado Department of Transportation
Contributors: Colorado. Department of Transportation. Region 1.
Publisher: Colorado Department of Transportation, Region 1; Federal Highway Administration
Published: 2012
Place of publication: [Denver, Colo.]
Language: eng
Subjects: Express highways; Roads; Design and construction; Environmental aspects
Other titles: CDOT Project C0703-379; I-70 twin tunnels environmental assessment; Twin tunnels portal to portal access road companion report to the Twin Tunnels environmental assessment and section 4(f) evaluation.
Description: The Twin tunnels project proposes to add a third eastbound travel lane on I-70 between the Idaho Springs East Interchange (milepost 241) to the base of Floyd Hill (milepost 244) where a three-lane highway section currently exists. The project is approximately two and a half miles long and includes widening the eastbound bore of the Twin tunnels.
Notes: "July 2012."--Cover

CDROM contains text from the 2 volumes as well as appendices and other supporting documentation.
Table of contents: title: [Vol. 1]: Twin tunnels environmental assessment and section 4(f) evaluation Clear Creek County; title: [vol. 2]: Twin tunnels portal to portal access road, companion report to the Twin Tunnels environmental assessment and section 4(f) evaluation.