Regional Freeway System Study
Regional Freeway System Study

Author: Des Moines Area Metropolitan Planning Organization

Publisher:

Published: 2007

Total Pages: 183

ISBN-13:

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The Des Moines Area MPO's Freeway System Study evaluated (7) new or modified interchange locations on the previously defined Interstate 35-80 roadway segment and did that evaluation for interchange location from west to east in the defined corridor: Meredith Drive (Urbandale-new); Iowa Highway 141 (Northwest Connector) (Urbandale-modified); 100th Street (Urbandale-new); 72nd Street (Urbandale-new); NW Beaver Drive (Polk County-new); NW26th Street (Polk County-new); and, NW 6th Drive (Polk County-new).

Configuration Study Northeast Interchange,I-35, I-80, I-235, Des Moines, Iowa
Configuration Study Northeast Interchange,I-35, I-80, I-235, Des Moines, Iowa

Author: HDR Engineering

Publisher:

Published: 2001

Total Pages: 44

ISBN-13:

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This report documents the procedures and findings of Phase I of the I-35/I-80/I-235 System Interchange Configuration Study. The purpose of the study is to identify the preferred configuration for the north junction of Interstates 35, 80 and 235 in Des Moines, Iowa. This system interchange serves as the northeastern terminus for I-235 and for the overlap section of I-80/I35. Originally constructed in 1969, the existing interchange configuration contains numerous substandard design features by today's standards, including left hand entrances and exits, lane imbalance and inadequate ramp tapers.

City of Des Moines Street Systems Study
City of Des Moines Street Systems Study

Author: Jack E. Leisch & Associates

Publisher:

Published: 1989

Total Pages: 62

ISBN-13:

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The Iowa Department of Transportation (IaDOT) has undertaken a major, planning effort to identify long-term system needs for I-235 in Des Moines, Iowa. A consulting team headed by Jack E. Leisch & Associates (JEL) conducted a two-year study of the freeway from 1987 through early 1989. As the study progressed, it became apparent that improvements to the freeway could have many potential impacts on the Des Moines street system. Also, development plans for the Des Moines CBD continued to surface, raising questions regarding local street traffic problems and impacts. In the Spring of 1988, the city of Des Moines contracted with Jack E. Leisch & Associates to perform a parallel study of street system needs and impacts. This study, reported here, focused on problems and solutions associated with reconstruction of I-235, long-term growth in the CBD, and other major changes in the transportation network.