CORRE, Inc.
Madison | Oconomowoc | Eau Claire | Green Bay | Wittenberg

CTH A over Sioux Creek Project Profile

Barron County, WisDOT ID 8837-00-00

Client

  • Barron County

Dates

  • Design: 11/2014-08/2016
  • Construction: 2017

Barron County, WisDOT ID 8837-00-00

This rural design project includes minor approach work and the complete replacement of the existing single-span bridge that carries CTH A over Sioux Creek. CTH A is considered a heavy-haul truck route that sees more than 100 trucks per day due to a nearby frac sand mine operated by Superior Silica. Barron County requested that CORRE look into the feasibility of utilizing Geosynthetic Reinforced Soil (GRS) abutments to reduce the timeline for construction.

Challenges

  • Environmental constraints identified by the WisDNR included providing a three-foot wide flat “bench” on the riprap slope of the north abutment to accommodate a small animal crossing.
  • GRS abutments are a new technology for bridge construction and required a great deal of coordination with WisDOT’s Bureau of Structures (BOS) to determine applicability, costs, implementation challenges, etc.
  • Since CTH A is a heavy-haul route, the timeline for construction was critical to minimize adverse impacts to Superior Silica’s trucking operations. A temporary bypass was evaluated in the event a conventional bridge type (i.e. concrete flat slab) would be used.

Results

  • This project was constructed in fall of 2017.
CTH A over Sioux Creek
CTH A over Sioux Creek
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