I-70 CORRIDOR PROGRAMMATIC ENVIRONMENTAL IMPACT STUDY

The recent rise in Colorado's population has led to detailed studies for options to increase the transportation capacity of the I-70 corridor. This corridor is the primary access route through the mountains of Colorado for trucking industries as well as recreation and tourist activities. Yeh and Associates was responsible for performing the geotechnical, geological, and hazardous materials evaluation of the programmatic environmental impact study of the I-70 corridor from Denver to Glenwood Springs, Colorado. This project involved identifying and describing the geologic and soil conditions along the highway and the potential hazards and engineering constraints posed to the present and proposed highway system by these conditions. The geologic hazards identified include: rockfall, debris flows, landslides, avalanches, collapsible and swelling soils, and the hazards related to past mining activity such as heavy metals in mill tailings and mine subsidence. The study area varied but generally encompassed the I-70 corridor and the ground to the ridgelines on either side. Through research of existing maps, aerial photos, and site-specific studies, a geologic hazards inventory map was produced. The second phase involved observation of each geologic condition that affects the existing I-70 corridor. Preliminary field verification was conducted to verify the hazards and their impacts on current and proposed alignments. Evaluation included the history (cause, origin) and the current condition (size, materials, stability) of the hazard as well as any mitigation procedures previously performed. In addition, alternative routes for tunnels were investigated for future expansion of the highway and/or railway.

  • Supplemental Notes:
    • Unlike most groups and organizations that meet on a regular basis, the Highway Geology Symposium has no central headquarters, no annual fees, and no formal membership requirements. The governing body of the Symposium is a Steering Committee. Recent proceedings may be obtained from the Treasurer of the Symposium, Mr. Russell Glass.
  • Corporate Authors:

    Mr. Russell Glass

    100 Wolf Cove Road
    Asheville, NC  United States  28804
  • Authors:
    • Andrew, R
    • Lovekin, J R
  • Conference:
  • Publication Date: 2002

Language

  • English

Media Info

  • Features: Figures; References;
  • Pagination: p. 195-203

Subject/Index Terms

Filing Info

  • Accession Number: 00962023
  • Record Type: Publication
  • Report/Paper Numbers: CD-ROM
  • Files: TRIS
  • Created Date: Aug 8 2003 12:00AM