Bridge inspection program

AN EVALUATION

Bridge Inspection Program

Department of Transportation

01-17

October 2001

2001-2002 Joint Legislative Audit Committee Members

Senate Members:Assembly Members:

Gary R. George, Co-chairperson Joseph K. Leibham, Co-chairperson Judith Robson Samantha Starzyk

Brian Burke John Gard

Joanne Huelsman David Cullen

Mary Lazich Barbara Gronemus

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LEGISLATIVE AUDIT BUREAU

The Bureau is a nonpartisan legislative service agency responsible for conducting financial and program evaluation audits of state agencies. The Bureau’s purpose is to provide assurance to the Legislature that financial transactions and management decisions are made effectively, efficiently, and in compliance with state law and that state agencies carry out the policies of the Legislature and the Governor. Audit Bureau reports typically contain reviews of financial transactions, analyses of agency performance or public policy issues, conclusions regarding the causes of problems found, and recommendations for improvement. Reports are submitted to the Joint Legislative Audit Committee and made available to other committees of the Legislature and to the public. The Audit Committee may arrange public hearings on the issues identified in a report and may introduce legislation in response to the audit recommendations. However, the findings, conclusions, and recommendations in the report are those of the Legislative Audit Bureau. For more information, write the Bureau at 22 E. Mifflin Street, Suite 500, Madison, WI 53703, call (608) 266-2818, or send e-mail to @. Electronic copies of current reports are available on line at /lab/windex.htm.

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State Auditor - Janice Mueller

Editor of Publications - Jeanne Thieme

Audit Prepared by

Kate Wade, Director and Contact Person

Dean Swenson

Jessica Lathrop

David Miller

Michael Oakleaf

CONTENTS

Letter of Transmittal1

Summary3

Introduction7 Bridge Inspection Process8 Condition of Wisconsin’s Bridges12

Expenditures and Staffing17 Inspection Expenditures17 Expenditures for State-Staffed Inspections19 State Staff Qualifications22 Expenditures for Consultant-Staffed Inspections22 Consultant Evaluations25

Bridge Inspection Issues29 Frequency of Routine Inspections29 Routine Bridge Maintenance34 Maintenance Expenditures35

District Oversight of Maintenance Work37 Other Inspection Issues38 Average Daily Traffic Counts39

Master Bridge Lists40

Hoan Bridge41 Hoan Bridge Failure41 Inspection History44 Routine Inspections44

Fracture Critical Inspections45 Inspection of Bridges Similar to the Hoan Bridge46 Appendix 1—Structurally Deficient Bridges, by District and County

Appendix 2—Bridge Maintenance Expenditures, by District and County

Appendix 3—Response from the Department of Transportation

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