I-43 Bridge Failure: Investigation and Repair
Join us for the fall Engineering Seminar Series as Brian Roper, P.E., Wisconsin Department of Transportation, presents I-43 Bridge Failure: Investigation and Repair. On September 25, 2013, the Interstate 43 Leo Frigo Bridge over the Fox River in Green Bay, Wisconsin was closed to traffic after Pier 22 settled over two feet. This presentation will highlight the investigation, design, and construction challenges of the Leo Frigo Bridge repair. This includes topics related to the complex structural/geotechnical scope, accelerated schedule, and $20M budget. Other elements such as managing regional traffic and public involvement will also be addressed. Finally, the presentation will summarize the ongoing monitoring activities.

About the presenter
Brian Roper is a transportation engineering manager with over 3 decades of experience in the public and private sectors, including the past 18 years at the Wisconsin Department of Transportation. Over the course of his career, he has performed or managed a wide variety of traffic, planning, environmental, design, construction, and consulting activities. Since November 2020, he has led the Systems Operations Section in Southeast Region, which encompasses the Milwaukee-Racine-Kenosha metropolitan area and surrounding counties. With 55 dedicated professionals, WisDOT’s largest section of engineers and specialists apply their talents across a diverse range of practice. These include signal operations & maintenance, lighting, safety, signing & marking, traffic operations & modeling, work zones, and roadway maintenance. In other roles, Brian has led multi-billion-dollar freeway expansion programs, large bridge reconstructions & repairs, and the statewide consultant services section. He earned his BS in Civil Engineering from Iowa State University and his MS in Civil Engineering with a transportation focus from Purdue University. He is a registered Professional Engineer in Wisconsin and Minnesota. Brian is a member both the American Society of Civil Engineers (ASCE) and the Institute of Transportation Engineers (ITE).
About the company
The Wisconsin Department of Transportation (WisDOT) is dedicated to creating transportation solutions through innovation and exceptional service. We strive each day to provide leadership in the development and operation of a safe and efficient transportation system for the people of Wisconsin. With over 700 statewide, WisDOT is the state’s largest employer of civil engineers.
About the Engineering Seminar Series
The University of Wisconsin-Platteville Engineering Seminar Series is offered on campus and via zoom. Free and open to the public, these presentations showcase the plan, design, construction, and maintenance of real-world engineering projects and how they change our community. Attendees are eligible for one professional development hour.
For more information or to request disability accommodations, contact the UW-Platteville College of Engineering, Mathematics and Science Dean's Office at 608.342.1561 or emsdeansoffice@uwplatt.edu.