Iowa Spirits Price Book, July 2014,

Iowa Spirits Price Book is produced monthly details of the current prices of liquors in Iowa. Formerly titled Iowa Liquor Quarterly Spirits Price Book.

Iowa Spirits Price Book, August 2014,

Iowa Spirits Price Book is produced monthly details of the current prices of liquors in Iowa. Formerly titled Iowa Liquor Quarterly Spirits Price Book.

Iowa Spirits Price Book, September 2014,

Iowa Spirits Price Book is produced monthly details of the current prices of liquors in Iowa. Formerly titled Iowa Liquor Quarterly Spirits Price Book.

Iowa Spirits Price Book, October 2014,

Iowa Spirits Price Book is produced monthly details of the current prices of liquors in Iowa. Formerly titled Iowa Liquor Quarterly Spirits Price Book.

Iowa Spirits Price Book, November 2014,

Iowa Spirits Price Book is produced monthly details of the current prices of liquors in Iowa. Formerly titled Iowa Liquor Quarterly Spirits Price Book.

Iowa Spirits Price Book, December 2014,

Iowa Spirits Price Book is produced monthly details of the current prices of liquors in Iowa. Formerly titled Iowa Liquor Quarterly Spirits Price Book.

Iowa Spirits Price Book, January 2015

Iowa Spirits Price Book is produced monthly details of the current prices of liquors in Iowa. Formerly titled Iowa Liquor Quarterly Spirits Price Book.

Iowa Spirits Price Book, February 2015

Iowa Spirits Price Book is produced monthly details of the current prices of liquors in Iowa. Formerly titled Iowa Liquor Quarterly Spirits Price Book.

Iowa Spirits Price Book, March 2015

Iowa Spirits Price Book is produced monthly details of the current prices of liquors in Iowa. Formerly titled Iowa Liquor Quarterly Spirits Price Book.

Iowa Spirits Price Book, April 2015

Iowa Spirits Price Book is produced monthly details of the current prices of liquors in Iowa. Formerly titled Iowa Liquor Quarterly Spirits Price Book.

Best Practices for Low-Cost Safety Improvements on Iowa’s Local Roads, 2008

Many good maintenance practices are done routinely to ensure safe travel on low-volume local roads. In addition, there are many specific treatments that may go beyond the point of routine maintenance and in fact provide additional safety benefits with a relatively low price tag. The purpose of this publication is to try to assemble many of these treatments that are currently practiced in Iowa by local agencies into one, easy-to-reference handbook that not only provides some clarity to each treatment with photos and narrative, but also features references to agencies currently using that technique. Some strategies that are utilized by Iowa, other states, and are topics of research have also been included to allow the user more information about possible options. Even though some areas overlap, the strategies presented have been grouped together in the following areas: Signing and Delineation, Traffic "Calming," Pavement Marking and Rumble Strips/Stripes, Roadside and Clear Zone, Guardrail and Barriers, Lighting, Pavements and Shoulders, Intersections, Railroad Crossings, Bridges and Culverts, and Miscellaneous. The intention is to make this a “living” document, which will continue to be updated and expanded periodically as other existing practices are recognized or new practices come into being.

Iowa Spirits Price Book, May 2015

Iowa Spirits Price Book is produced monthly details of the current prices of liquors in Iowa. Formerly titled Iowa Liquor Quarterly Spirits Price Book.

Alkali Content of Fly Ash – Measuring and Testing Strategies for Compliance, TR-628, 2015

Sodium and potassium are the common alkalis present in fly ash. Excessive amounts of fly ash alkalis can cause efflorescence problems in concrete products and raise concern about the effectiveness of the fly ash to mitigate alkali-silica reaction (ASR). The available alkali test, which is commonly used to measure fly ash alkali, takes approximately 35 days for execution and reporting. Hence, in many instances the fly ash has already been incorporated into concrete before the test results are available. This complicates the job of the fly ash marketing agencies and it leads to disputes with fly ash users who often are concerned with accepting projects that contain materials that fail to meet specification limits. The research project consisted of a lab study and a field study. The lab study focused on the available alkali test and how fly ash alkali content impacts common performance tests (mortar-bar expansion tests). Twenty-one fly ash samples were evaluated during the testing. The field study focused on the inspection and testing of selected, well documented pavement sites that contained moderately reactive fine aggregate and high-alkali fly ash. A total of nine pavement sites were evaluated. Two of the sites were control sites that did not contain fly ash. The results of the lab study indicated that the available alkali test is prone to experimental errors that cause poor agreement between testing labs. A strong (linear) relationship was observed between available alkali content and total alkali content of Class C fly ash. This relationship can be used to provide a quicker, more precise method of estimating the available alkali content. The results of the field study failed to link the use of high-alkali fly ash with the occurrence of ASR in the various concrete sites. Petrographic examination of the pavement cores indicated that Wayland sand is an ASR-sensitive aggregate. This was in good agreement with Iowa DOT field service records. It was recommended that preventative measures should be used when this source of sand is used in concrete mixtures.

Iowa Spirits Price Book, June 2015

Iowa Spirits Price Book is produced monthly details of the current prices of liquors in Iowa. Formerly titled Iowa Liquor Quarterly Spirits Price Book.

Strategies to Address Nighttime Crashes at Rural, Unsignalized Intersections, TR-540, 2008

Citizens request the installation of roadway lighting in their communities based on several motivations, including the experience or perception that lighting improves traffic safety and reduces crime, while also providing a tangible benefit of taxpayer dollars at work. Roadway authority staff fully appreciate these citizen concerns; however, roadway lighting is expensive to install, supply energy to, and maintain in perpetuity. The installation of roadway lighting is only one of a number of strategies agencies have to address nighttime crash concerns. This research assists local agencies in deciding when, where, and how much rural intersection lighting to provide.