Comprehensive Bridge Deck Deterioration Mapping of Nine Bridges by Nondestructive Evaluation Technologies Final Report, January 2011

The primary objective of this research was to demonstrate the benefits of NDT technologies for effectively detecting and characterizing deterioration in bridge decks. In particular, the objectives were to demonstrate the capabilities of ground-penetrating radar (GPR) and impact echo (IE), and to evaluate and describe the condition of nine bridge decks proposed by Iowa DOT. The first part of the report provides a detailed review of the most important deterioration processes in concrete decks, followed by a discussion of the five NDT technologies utilized in this project. In addition to GPR and IE methods, three other technologies were utilized, namely: half-cell (HC) potential, electrical resistivity (ER), and ultrasonic surface waves (USW) method. The review includes a description of the principles of operation, field implementation, data analysis, and interpretation; information regarding their advantages and limitations in bridge deck evaluations and condition monitoring are also implicitly provided.. The second part of the report provides descriptions and bridge deck evaluation results from the nine bridges. The results of the NDT surveys are described in terms of condition assessment maps and are compared with the observations obtained from the recovered cores or conducted bridge deck rehabilitation. Results from this study confirm that the used technologies can provide detailed and accurate information about a certain type of deterioration, electrochemical environment, or defect. However, they also show that a comprehensive condition assessment of bridge decks can be achieved only through a complementary use of multiple technologies at this stage,. Recommendations are provided for the optimum implementation of NDT technologies for the condition assessment and monitoring of bridge decks.

State of Iowa Improving Transition Outcomes Resource Mapping Workshops, 2003-2004

Iowa Vocational Rehabilitation Services, a Division of the State of Iowa Department of Education, in partnership with seven other state agencies, applied for and was awarded funding for “Improving Transition Outcomes for Youth with Disabilities Through the Use of Intermediaries.” This Innovative State Alignment Grant is funded by the Department of Labor, Office of Disability Employment Policy. For clarity and brevity, the Iowa team chose to use “Improving Transition Outcomes” as the project name, thus providing the acronym ITO. Grant funding began October 1, 2003 with the possibility of renewal for five years.

GIS Mapping: Creating Solutions for Rock Creek Lake, 2004

Rock Creek Lake is at risk. The centerpiece of Rock Creek State Park in Jasper County, Rock Creek Lake offers visitors a range of recreational opportunities, including the second busiest campground in Iowa and great fishing. However, many different factors are threatening the lake. Action is being taken to improve the lake for today’s visitors and to preserve the lake for future generations. GIS mapping is helping to make those improvements possible.

DNR Interactive Mapping: A tool for Iowa Agriculture, 2006

The planning tools you need to improve both your farming operation and Iowa’s streams and lakes are right at your fingertips. With DNR interactive mapping online, you can access a large amount of information for free and without special software.

Improving Transition Outcomes: Resource Mapping Workshop: Additional Information

Information used/presented during the Improving Transition Outcomes Resource Mapping Workshops

Improving Transition Outcomes: Resource Mapping Workshop: Service Matrix

Resource Mapping tool from the Improving Transition Outcomes Resource Mapping Workshops

Improving Transition Outcomes: Resource Mapping Workshop: Resource List

Resource Mapping resources shared during the Improving Transition Outcomes Resource Mapping Workshops

Improving Transition Outcomes: Resource Mapping Workshop: Business Survey

Business survey tool from the Improving Transition Outcomes Resource Mapping Workshops

Improving Transition Outcomes: Resource Mapping Workshop: Content Outline

Content outline used during the Improving Transition Outcomes Resource Mapping Workshops

Improving Transition Outcomes: Resource Mapping Workshop: Activities

Activities used during the Improving Transition Outcomes Resource Mapping Workshops

Improving Transition Outcomes: Resource Mapping Workshop: Announcement

Announcement of the Improving Transition Outcomes Resource Mapping Workshops

Improving Transition Outcomes: Resource Mapping Workshop: General Information

Information shared at the Improving Transition Outcomes Resource Mapping Workshops

Improving Transition Outcomes: Resource Mapping Workshop: Youth Survey

Youth survey tool from the Improving Transition Outcomes Resource Mapping Workshops

Improving Transition Outcomes: Resource Mapping Workshop: Service Provider Survey

Service provider survey tool from the Improving Transition Outcomes Resource Mapping Workshops

Improving Transition Outcomes: Resource Mapping Workshop: Community Organizations Survey

Community organizations survey tool from the Improving Transition Outcomes Resource Mapping Workshops