Warren County, June 30, 2002

County Audit Report

Warren County, June 30, 2003

County Audit Report

Warren County, Independent Auditor's Reports, Basic Financial Statements and Supplementary Information, Schedule of Findings and Questioned Costs, June 30, 2004

County Audit Report

Warren County, Independent Auditor's Reports, Basic Financial Statements and Supplementary Information, Schedule of Findings and Questioned Costs, June 30, 2005

County Audit Report

Audit report on Warren County, Iowa for the year ended June 30, 2007

Audit report on Warren County, Iowa for the year ended June 30, 2007

Audit report on Warren County, Iowa for the year ended June 30, 2008

Audit report on Warren County, Iowa for the year ended June 30, 2008

Audit report on Warren County, Iowa for the year ended June 30, 2009

Audit report on Warren County, Iowa for the year ended June 30, 2009

Audit report on Warren County, Iowa for the year ended June 30, 2010

Audit report on Warren County, Iowa for the year ended June 30, 2010

Audit report on Warren County, Iowa for the year ended June 30, 2011

Audit report on Warren County, Iowa for the year ended June 30, 2011

Audit report on Warren County, Iowa for the year ended June 30, 2012

Audit report on Warren County, Iowa for the year ended June 30, 2012

Road Safety Audit for IA 28 from the South Corporate Limits of Norwalk in Warren County through the IA 5 Interchange in Polk County, Iowa, November 2012

In response to local concerns, the Iowa Department of Transportation (DOT) requested a road safety audit (RSA) for the IA Highway 28 corridor through the City of Norwalk in Warren County, Iowa, from the south corporate limits of Norwalk through the IA 5 interchange in Polk County, Iowa. The audit included meeting with City staff to discuss concerns, review crash history and operational issues, observe the route under daylight and nighttime conditions, and analyze available data. This report outlines the findings and recommendations of the audit team for addressing the safety concerns and operational matters along this corridor.

A Comparison of Mobile Scanning to a Total Station Survey at the I-35 and IA 92 Interchange in Warren County, Iowa, August 15, 2012

The purpose of this project was to investigate the potential for collecting and using data from mobile terrestrial laser scanning (MTLS) technology that would reduce the need for traditional survey methods for the development of highway improvement projects at the Iowa Department of Transportation (Iowa DOT). The primary interest in investigating mobile scanning technology is to minimize the exposure of field surveyors to dangerous high volume traffic situations. Issues investigated were cost, timeframe, accuracy, contracting specifications, data capture extents, data extraction capabilities and data storage issues associated with mobile scanning. The project area selected for evaluation was the I-35/IA 92 interchange in Warren County, Iowa. This project covers approximately one mile of I-35, one mile of IA 92, 4 interchange ramps, and bridges within these limits. Delivered LAS and image files for this project totaled almost 31GB. There is nearly a 6-fold increase in the size of the scan data after post-processing. Camera data, when enabled, produced approximately 900MB of imagery data per mile using a 2- camera, 5 megapixel system. A comparison was done between 1823 points on the pavement that were surveyed by Iowa DOT staff using a total station and the same points generated through the MTLS process. The data acquired through the MTLS and data processing met the Iowa DOT specifications for engineering survey. A list of benefits and challenges is included in the detailed report. With the success of this project, it is anticipate[d] that additional projects will be scanned for the Iowa DOT for use in the development of highway improvement projects.

Audit report on Warren County, Iowa for the year ended June 30, 2013

Audit report on Warren County, Iowa for the year ended June 30, 2013

Audit report on Warren County, Iowa for the year ended June 30, 2014

Audit report on Warren County, Iowa for the year ended June 30, 2014

Warren County, Township 76 North Range 22 West

Des Moines River Plat Maps.