Fillmore County Bridge 23536

Bridge 23536 has been selected as a winner of the 2019 MnDOT-AGC Bridge Construction Award in the under-$1.5 million construction cost category.

The bridge was designed by Erickson Engineering and built by ICON Constructors. Located on Heron Road over the South Branch Root River, the bridge consists of a 3-span continuous concrete slab structure with a total length of 132 ft and clear width of 28 ft. The north span of the bridge is located within a 20 mph horizontal curve. Substructures consist of concrete integral abutments and pile bent piers encased in concrete. Design included 970 ft of approach roadway reconstruction consisting of a combination of urban paved curb / gutter section and rural aggregate surface section.

Erickson Engineering’s services included hydraulic analysis, geotechnical and utility coordination, permits, preliminary / final bridge design, preliminary / final roadway design, specifications, and cost estimate.

According to Kevin Western, State Bridge Engineer with the MnDOT Bridge Office:

“Notable things about this project that resulted in high marks during judging include:

• Innovation: Innovative use of sequencing and staging to meet project needs. Innovative use of design and construction methods not always used on local projects.
• Complexity: Limited access near active resort facility and golf course, specific construction sequencing and timelines to meet area needs, bridge and roadway geometry, varied foundations.
• Timeliness: Meeting not just one, but two completion dates with the interim completion date for the substructure protecting a DNR designated trout stream.
• Workmanship: Deck finish and ride quality are very good and overall aesthetics of the bridge are excellent with very good concrete finish and workmanship throughout.
• Other: Contractor and Owner’s safety record working in close proximity to popular area attractions. Successful public-private partnership with multiple stakeholders.”

Congratulations to all involved in the project.