Secure and Prepared Newsletter, April 8, 2010, Vol. 6, no. 7

A bi-weekly newsletter for those involved in the fields of homeland security and/or emergency management

Agri-News, April 25, 2006, Vol. 6, no. 7

Crop and livestock summaries for the state of Iowa, produced by the Iowa Department of Agriculture.

Lottery Action Newsletter, Vol. 20, No. 6, April 7-20, 2014

Iowa Lottery Retailer Newsletter

Ag Decision Maker, May 2002, Vol. 6, no. 7

A Business Newsletter for Agriculture

Improving Transition Outcomes: Henry County Transition Partners: Guidebook Part 6

Part 6 of 7 for Henry County's Transition Partners Guidebook specific to youth with disabilities transitioning from high school to employment, post-secondary education, or adult services.

Fast Track and Fast Track II Cedar Rapids, Iowa, HR-544, 1993

Two lanes of a major four-lane arterial street in Cedar Rapids, Iowa, needed reconstruction. Because of the traffic volume and the detour problem, closure of the intersections, even for 1 day was not feasible. Use of Fast Track concrete paving on the mainline portion of the project permitted achievement of the opening strength of 400 psi in less than 12 hr. Fast Track II, used for the intersections, achieved the opening strength of 350 psi in 6 to 7 hr. Flexural and compression specimens of two sections each in the Fast Track and Fast Track II sections were subjected to pulse velocity tests. Maturity curves were developed by monitoring the temperatures. Correlations were performed between the pulse velocity and flexural strength and between the maturity and flexural strength. The project established the feasibility of using Fast Track II to construct portland cement concrete pavement at night and opening the roadway to traffic the next day.

Transverse Joint Sealing with Various Sealants, HR-203, 1983

Iowa's first portland cement concrete pavement was constructed in 1904 in the City of LeMars. A portion of that pavement served traffic until 1974 at which time it was resurfaced. The first rural Iowa pee pavement (16' wide, 6" to 7" thick) was constructed under the direction of the Iowa State Highway Commission in 1913. Some of Iowa's early pavements had transverse joints at 25-foot spacings. At that time, joint spacings across the nation ranged from 24 to 100 ft. There have been many changes in joint design over the years with some pavements being constructed without transverse joints. Joint spacing on Iowa primary pavements has generally remained around 20 feet with this spacing having been adopted as an Iowa standard in 1954. Until 1978 it was common to specify a 40-foot joint spacing on secondary pavements. The performance of the pavements with joint spacings greater than 20 feet, and in some cases no contraction joints, generated a 1955 research project on joint spacing. This project was 16 miles long containing sections without contraction joints and sections with joints sawed at intervals of 20, 50 and 80 feet. Approximately half of the sawed joints were left unsealed. The results of this research supported the 20-foot spacing, but were inconclusive regarding the benefits of sealing. One of the desired characteristics of joint sealing material is that it should act as a moisture barrier and prevent the intrusion of surface water. It was generally accepted from past experience that the hot poured type joint seals did not provide this effective moisture barrier.

Service Station Sales in Eight Iowa Cities, 1963

What is the trend in service station sales and how does a change in the traffic pattern affect this trend? This report is a study of service station sales in eight Iowa cities that are experiencing changes in traffic patterns. The cities are: 1. Albia 2. Boone 3. Chariton 4. Decorah 5. Grinnell 6. Jefferson 7. Newton 8. Stuart. The Interstate Highway by-passes Newton, Grinnell and Stuart. Primary highways are being relocated around Boone, Decorah, and Albia. Primary highway relocations have been completed around Chariton and Jefferson.