Federal Highway Administration Finding of No Significant Impacts and Programmatic Section 4(f) Evaluation for Broadway Viaduct Improvements Council Bluffs, Iowa, Pottawattamie County, Iowa DOT Project Number: NHSX-6-1(109)-3H-78
Federal Highway Administration Finding of No Significant Impacts and Programmatic Section 4(f) Evaluation for Broadway Viaduct Improvements Council Bluffs, Iowa, Pottawattamie County, Iowa DOT Project Number: NHSX-6-1(109)-3H-78

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Published: 2006

Total Pages: 258

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The purpose of this project is to maintain a safe and efficient flow of traffic over the Broadway Viaduct by providing a facility that meets Iowa DOT's current design standards for a principal arterial highway. The Broadway Viaduct is part of U.S. 6 connecting Council Bluffs, Iowa, and Omaha, Nebraska, and needs to be replaced to maintain the connectivity between the two cities. The project is located within the City of Council Bluffs in Pottawattamie County, Iowa. This Environmental Assessment evaluates alternatives for improvements to the existing viaduct and replacing the viaduct, with viaduct replacement identified as the preferred alternative.

Federal Highway Administration Finding of No Significant Impacts (FONSI) and de Minimus Section 4(f) Finding for West 23rd Street Bridge Over Perry Creek from West of Silver Street to West of Geneva Street, Sioux City, Iowa, Woodbury County
Federal Highway Administration Finding of No Significant Impacts (FONSI) and de Minimus Section 4(f) Finding for West 23rd Street Bridge Over Perry Creek from West of Silver Street to West of Geneva Street, Sioux City, Iowa, Woodbury County

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Published: 2009

Total Pages: 70

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The proposed project, located in northwest Sioux City, consists of reconstructing West 23rd Street from west of Silver Street to west of Geneva Street. The project is approximately 621 feet long and includes a new bridge over Perry Creek at West 23rd Street. The project is located on the northwest side of the City of Sioux City, Iowa. It passes through residential and recreational areas, and crosses over Perry Creek. The bridge will replace a previously existing bridge that was removed with the Perry Creek reconstruction project, which was a US Army Corps of Engineers (USACE) flood control project.