Small business and disadvantaged business enterprises (DBE) in receiving nonfederal highway funding

Pursuant to H.F. 2460, passed during the 2010 session of the 83rd Iowa General Assembly, please find attached the recommendations regarding methods to track and assess the participation of small businesses and disadvantaged business enterprises (DBE) in receiving nonfederal highway funding.

European Corn Borer: Development and Management, 1989

Contains information on the European Corn Borer, an introduced species that came to North America during the early 1900's from central Europe. The insect damages corn plants, as well as peppers, beans, potatoes and other plants, by feeding on leaves, stalk tunneling and ear damage. This brochure gives summaries of management tactics. This is North central regional extension publication no. 327 sponsored by Iowa State University Extension.

Report on a review of selected application controls over the Iowa State University of Science and Technology Facilities Planning and Management - Facilities Administrative Management Information System for the period of April 18, 2011 through May 16, 2011

Report on a review of selected application controls over the Iowa State University of Science and Technology Facilities Planning and Management - Facilities Administrative Management Information System for the period of April 18, 2011 through May 16, 2011

2013 Iowa DOT Engineering Intern Development and Management Program, 13-464, 2013

The Institute for Transportation (InTrans) at Iowa State University (ISU) developed an internship mentoring program in collaboration with the Iowa Department of Transportation (DOT) to provide additional mentorship to both student interns and Iowa DOT intern managers. For the summer 2013 Iowa DOT Engineering Intern Development and Management Program, this report summarizes the following: * Mentoring activities conducted by ISU; * Results of the different intern program success assessments that were conducted; * Experiences, lessons learned, and recommendations; * Program benefits that were realized.

Optimization and Management of Materials in Earthwork Construction, TR-501, 2010

As a result of forensic investigations of problems across Iowa, a research study was developed aimed at providing solutions to identified problems through better management and optimization of the available pavement geotechnical materials and through ground improvement, soil reinforcement, and other soil treatment techniques. The overall goal was worked out through simple laboratory experiments, such as particle size analysis, plasticity tests, compaction tests, permeability tests, and strength tests. A review of the problems suggested three areas of study: pavement cracking due to improper management of pavement geotechnical materials, permeability of mixed-subgrade soils, and settlement of soil above the pipe due to improper compaction of the backfill. This resulted in the following three areas of study: (1) The optimization and management of earthwork materials through general soil mixing of various select and unsuitable soils and a specific example of optimization of materials in earthwork construction by soil mixing; (2) An investigation of the saturated permeability of compacted glacial till in relation to validation and prediction with the Enhanced Integrated Climatic Model (EICM); and (3) A field investigation and numerical modeling of culvert settlement. For each area of study, a literature review was conducted, research data were collected and analyzed, and important findings and conclusions were drawn. It was found that optimum mixtures of select and unsuitable soils can be defined that allow the use of unsuitable materials in embankment and subgrade locations. An improved model of saturated hydraulic conductivity was proposed for use with glacial soils from Iowa. The use of proper trench backfill compaction or the use of flowable mortar will reduce the potential for developing a bump above culverts.