5 resultados para Trophic cascade

em Iowa Publications Online (IPO) - State Library, State of Iowa (Iowa), United States


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City Audit Report

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City Audit Report

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This project concept and assessment of impacts includes information on future four-lane construction of U.S. 151 from the existing four-lane section near Cedar Rapids to Dubuque.

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Report on a special investigation of the Cascade Municipal Utilities (CMU) for the period July 1, 2009 through March 16, 2016

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The Iowa Department of Transportation is evaluating the use of discarded tires in asphalt rubber cement. There have been five projects completed in Iowa. This project is located on US 151 north of Cascade to US 61 in Dubuque. One section consists of an asphalt rubber cement surface and a conventional binder and two sections contain both asphalt rubber cement surface and binder. The control section of conventional asphalt was completed this spring. Information included in this report consists of test results, construction reports, and cost comparisons.