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South Division Street Bridge Replacement

Upgraded safety, aesthetics, and traffic efficiency over the Little Wapsipinicon River.

City of Sumner / Sumner, IA


MSA provided comprehensive engineering services for the replacement of the South Division Street Bridge over the Little Wapsipinicon River in Iowa. The original structure, built in 1956, was a 152-foot, three-span multiple steel I-beam superstructure supported by timber-backed abutments and timber piles. Classified as being in “poor” condition, the bridge required a full replacement to ensure safety and reliability for the traveling public. 

The new bridge is a 188-foot, 10-inch, three-span pretensioned prestressed concrete beam (PPCB) structure featuring an open concrete railing and a widened 24-foot, 6-inch deck to improve traffic flow and safety. It is supported by integral abutments with pile bent piers, anchored on driven steel piling and encased in concrete, ensuring long-term stability and structural integrity. 

MSA’s role extended beyond design, encompassing a full suite of services, including:

  • Field Data Collection: Hydraulic conditions, structure geometry, and site topography. 
  • Public Involvement: Engaging stakeholders and the community throughout the process. 
  • Agency Coordination: Working closely with the Iowa Department of Natural Resources and the U.S. Army Corps of Engineers and preparing permit applications. 
  • Utility Coordination: Meeting and coordinating with utilities for their relocation. 
  • Public Engagement: Hosting a public information meeting to share concepts and gather feedback. 
  • Final Plans: Roadway approach and structure plans for a PPCB bridge. 
  • Bid Preparation: Submission of final plans, specifications, and estimates for bid letting. 
  • Construction Oversight & Material Testing: Ensuring quality and compliance during every phase. 

Partially funded through the Iowa DOT’s City Bridge Program, this project delivers enhanced safety, improved aesthetics, and greater traffic efficiency, while reflecting a commitment to sustainable infrastructure development. MSA’s comprehensive approach assured a successful bridge replacement that meets modern standards and serves the community for decades to come. 

Client

City of Sumner

Location

Sumner, IA

Services Provided


Bridges, Roads & Highways
Environmental Services

Contact Project Lead

Leah Rhodes, PE
Senior Team Leader - Bridge Design, Board of Directors







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    Construction began in January of 2023 and was completed in December 2023, allowing the DOT to utilize this stretch of 7th Street as an emergency detour route for upcoming construction work on IA 218.

    The City of Janesville and project partners celebrated the grand re-opening of the bridge on December 15, 2023, with a ribbon-cutting ceremony and parade across the new structure led by local police and fire personnel.

     

     

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