I-235 AND I-80/I-35. DES MOINES AREA FREEWAY SYSTEM STUDY. REPORT 3 - DESIGN AND EVALUATION OF RECONSTRUCTION PLAN FOR I-235

Interstate Highways I-80, I-35 and I-235 are the backbone of the Des Moines area transportation system. A large portion of traffic through and within the metropolitan area uses one or more of these major facilities. A comprehensive study of the Des Moines area freeway system, encompassing 43 miles of rural, urban and suburban freeway, was conducted. The objectves were: (1) To systematically assess the location, extent and nature of the full range of physical, geometric and operational conditions on the freeway system; (2) To develop refined traffic forecasts for the year 2010 from Iowa DOT computer forecasts; (3) To develop a long range plan for the existing freeway system, such plan to address both existing problems and traffic needs for the year 2010; and (4) To recommend a staged approach by which freeway improvements are implemented in a systematic fashion. This report documents work peforrmed under Phase III of the project. The report describes detailed design, cost and impact evaluations of the alternatives for I-235 only. The work presented here is intended to assist the Iowa DOT in decision-making for specific improvements to the I-235 corridor.

• Supplemental Notes:
  • This is an oversize publication.
• Corporate Authors:

  Jack E Leisch & Associates

  1603 Orrington Avenue, Suite 1290
  Evanston, IL  United States  60201

  Iowa Department of Transportation

  800 Lincoln Way
  Ames, IA  United States  50010
• Publication Date: 1989-5

Media Info

• Features: Appendices; Figures; Tables;
• Pagination: v.p.

Subject/Index Terms

• TRT Terms: Costs; Decision making; Environmental impacts; Freeways; Highway design; Planning; Rural areas; Suburbs; Urban areas
• Identifier Terms: Interstate Highway System
• Geographic Terms: Des Moines (Iowa)
• Old TRIS Terms: Freeway design
• Subject Areas: Design; Economics; Environment; Finance; Highways; Planning and Forecasting; Society; I72: Traffic and Transport Planning;

Filing Info

• Accession Number: 00488235
• Record Type: Publication
• Files: TRIS, STATEDOT
• Created Date: Sep 30 1989 12:00AM