Bridge Deck Expansion Assembly on U.S. 20 in Sioux City, HR-505A, 1990

This project was to determine possible construction problems and evaluate the performance of experimental joint seals. Joints were installed in Woodbury County on US 20 over the Missouri River. ACME-Beta B-520 joints were used. Visual inspections were made yearly. Although the joints performed well for eight years, they deteriorated rapidly and have failed. It was concluded these joints did not perform satisfactorily.

Supplemental Pre-Location Report, U.S. 18, Mason City Bypass I-35 to Rudd : Cerro Gordo and Floyd Counties, 1992

The purpose of this report is to compile and update the prior studies in order to select viable alternatives for inclusion in the Environmental Assessment to be prepared for this project.

Sioux City's Grand Avenue Viaduct, 1936-2010

For almost 75 years, the Grand Avenue Viaduct (known today as the Gordon Drive Viaduct) has been a familiar feature of Sioux City's urban landscape. With the exception of bridges over the Mississippi River, the Grand Avenue Viaduct is Iowa's longest grade separation as well as its longest bridge. For nearly a mile, from the eastern suburbs west to the central business district, the viaduct carries Gordon Drive and the city route of U.S. 20 over the Floyd River valley, which includes the remnants of the city's famed stockyards and the South Bottoms neighborhood, as well as a maze of railroad tracks and the present channel of the Floyd River. Constructed in 1937 and known simply as "The Viaduct" to local residents, the massive structure is as fundamental to Sioux City as were its stockyards just a few decades ago.

Iowa Historic Property Study: Iowa-Illinois Memorial Bridge Carrying I-74 and U.S. 6 over Mississippi River between Bettendorf, Scott County, Iowa and Moline, Rock Island County, Illinois, 2012

The 1935 Iowa-Illinois Memorial Bridge is being documented at this time to fulfill the requirements of the Memorandum of Agreement regarding the removal of the Iowa-Illinois Memorial Bridge and the Iowana Farms Milk Company Building for the proposed improvements to Interstate 7 4 in Bettendorf, Iowa, and Moline, Illinois.1 The 1959 twin suspension bridge will be removed as well, but it was determined to be ineligible for the National Register of Historic Places. Discussion of the history of the 1959 twin span is included, however, in the current report as part of the overall history of the Iowa-Illinois Memorial Bridge. Fieldwork for the documentation occurred in November 2009 and October 2010 (Fig. 1). Limitations on photography included limited shoreline access on the Illinois side, making good views of the bridge from the south somewhat challenging. Also, photographs on the bridge deck were not possible because of interstate traffic and prohibitions on pedestrian traffic. Within the last few years, online primary sources have proliferated, along with historical materials regarding the Iowa-Illinois Memorial Bridge. Sources available online for this report included numerous historical photographs, as well as historical Davenport, Iowa, and U.S. newspapers that document the bridge planning and construction. Additional primary source material was found at the University of Iowa Libraries, the State Historical Society of Iowa in Iowa City, the Bettendorf Public Library, the Richardson-Sloane Special Collections Center at the Davenport Public Library, and the Iowa State University Special Collections in Ames.

U.S. Highway 20 Corridor Development Study, Task A Report, 1992

This Task A Report summarizes the initial activities of the U.S. 20 Corridor Development Study. Task A constitutes a review of the portion of existing U.S. 20 from the Nebraska state line on the south side of Sioux City to the junction with U.S. 169 south of Ft. Dodge. · Preliminary study findings for this 119 mile corridor are summarized below.

U.S. Highway 20 Corridor Development Study, 1992

This study examines the feasibility of making a major financial investment in the improvement of U.S. 20 between Sioux City and Fort Dodge, Iowa. This 119-mile (191-km) highway segment of U.S. 20 currently includes 97 miles (156 km) of 2-lane highway and 22 miles (35 km) of 4-lane highway (on the west end near Sioux City and a short section near Holstein). This 119-mile (191-km) segment is predominantly rural in nature, and serves a region of Iowa that has not been economically prospering. Local business leaders and residents have long desired major improvements to this highway segment, not only because of the safety and travel efficiency implications, but also because of the belief that the highway, as mainly a two-lane facility, is retarding the corridor area's economic growth and well being. The study was divided into five sequential tasks: (A) Evaluation of Existing U.S. 20; (B) Improvement Alternatives, Costs and Traffic; (C) Screening of Alternative Candidate Improvements; (D) Economic Feasibility Analysis; and (E) Interpretation and Comparisons.

City of Bloomfield, June 30, 2002

City Audit Report

City of Carlisle, June 30, 2002

City Audit Report

City of Carter Lake, June 30, 2002

City Audit Report

City of Cascade, June 30, 2002

City Audit Report

City of Center Point, June 30, 2002

City Audit Report

City of Clarence, June 30, 2002

City Audit Report

City of Clarinda, June 30, 2002

City Audit Report

City of Council Bluffs, June 30, 2002

City Audit Report

City of Davis City, June 30, 2002

City Audit Report