The Iowa Perinatal Letter, 2014, Vol. 34, no. 1

This newsletter from The Department of Public Health about perinatal health care and statistics.

Lateral Load Resistance of Diaphragms in Prestressed Concrete Girder Bridges, HR-319, 1991

Each year several prestressed concrete girder bridges in Iowa and other states are struck and damaged by vehicles with loads too high to pass under the bridge. Whether or not intermediate diaphragms play a significant role in reducing the effect of these unusual loading conditions has often been a topic of discussion. A study of the effects of the type and location of intermediate diaphragms in prestressed concrete girder bridges when the bridge girder flanges were subjected to various levels of vertical and horizontal loading was undertaken. The purpose of the research was to determine whether steel diaphragms of any conventional configuration can provide adequate protection to minimize the damage to prestressed concrete girders caused by lateral loads, similar to the protection provided by the reinforced concrete intermediate diaphragms presently being used by the Iowa Department of Transportation. The research program conducted and described in this report included the following: A comprehensive literature search and survey questionnaire were undertaken to define the state-of-the-art in the use of intermediate diaphragms in prestressed concrete girder bridges. A full scale, simple span, restressed concrete girder bridge model, containing three beams was constructed and tested with several types of intermediate diaphragms located at the one-third points of the span or at the mid-span. Analytical studies involving a three-dimensional finite element analysis model were used to provide additional information on the behavior of the experimental bridge. The performance of the bridge with no intermediate diaphragms was quite different than that with intermediate diaphragms in place. All intermediate diaphragms tested had some effect in distributing the loads to the slab and other girders, although some diaphragm types performed better than others. The research conducted has indicated that the replacement of the reinforced concrete intermediate diaphragms currently being used in Iowa with structural steel diaphragms may be possible.

Thin Bonded Concrete Resurfacing U.S. 34 West Burlington, Iowa, HR-34

The Experimental Project was designated as Research Project No. HR-34, sponsored by the Iowa Highway Research Board and constructed by the Iowa Highway Commission. Construction was supervised cooperatively by Engineers of the Iowa Highway Commission and the Portland Cement Association. The objective of the experiment is to study the behavior of relatively thin portland cement concrete resurfacing courses placed with bond on old concrete pavements. The phase of the problem being studied now, involves only pavements in which the old concrete is structurally sound.

County grant program for veterans : status report on the implementation of 2006 Iowa Acts, Chapter 1185, Section 34, 2007

This is an overview of the program that the General Assembly of Iowa appropriated $1 million for to the Iowa Department of Veterans Affairs with the intent to improve delivery services by the various County Commissions of Veterans Affairs to veterans in their respective counties.

Water Summary Update, April 24, 2014, No. 34

A snapshot of water resource trends prepared by the Iowa DNR in collaboration with the Iowa Department of Agriculture and Land Stewardship, the U.S. Geological Survey, and The Iowa Homeland Security and Emergency Management Department.

CIRAS News, Winter 2000, Vol. 34, no. 2

CIRAS is to enhance the performance of Iowa industry, and associated entities, through education and technology-based services. This newsletter holds information regarding these services.

Soil Survey of Iowa. Report no. 34, Boone County soils, 1924

This report contains a general colored soil map of Boone County and information on the county's soil physiology, drainage and fertility. It also includes information on field experiments, rotation of crops, prevention of erosion, soil types and other vital soil information in Boone County.

Iowa Board of Nursing Newsletter, February, March, April 2015 Vol. 34, no. 1

Newsletter produced by the Iowa Board of Nursing for nurses to keep them informed to CE classes, renewals, board meetings, etc. Produced 4 times a year. Also known as Nursing Newsletter.