Rock County Bridge 67564

Rock County Bridge 67564

Bridge 67564, located in Rock County on CR 55, consists of an 82 ft long single-span prestressed concrete box girder structure utilizing Geosynthetic Reinforced Soil Integrated Bridge System (GRS-IBS) technology. The abutments consist of geosynthetic reinforced soil (GRS) design, founded on a reinforced soil foundation. The total height of the abutments from top of reinforced soil foundation to bridge low member is 22 ft. The concrete box girders are post-tensioned transversely along the deck. The bridge has a roadway width of 30 ft.

This project received special federal funding to showcase GRS abutment design in Minnesota, and was completed on an expedited schedule to qualify for this funding.

Services Performed: Geotechnical Coordination, Preliminary/Final Design, Specifications, Cost Estimate

Construction Completion Date: 2012

Bridge Cost: $661,719

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