WisDOT

CTH K Widening

Kenosha County, WI

Heavy traffic congestion, plus its impact on a nearby public school, led the Wisconsin Department of Transportation (WisDOT) to reconstruct and widen CTH K (60th Street) from the Union Pacific Railroad to STH 31 in Kenosha County. This $2.3 million project appears to be a traditional widening project, but came with its own set of unique challenges. CTH K was widened from a two-lane to a four-lane highway and was expected to require extensive excavation. Upon construction, it was found that the soils were very poor for engineering purposes at the site, further complicating the project with additional excavation. As construction manager, Benesch implemented innovative techniques to address these stability challenges such as the use of fly ash and undercutting and placing large “breaker run” stone. This project also required the extensive coordination with the Union Pacific Railroad, as the road intersects with the tracks on one end of the project site. Additionally, storm water detention and ADA-compliant features were implemented during construction.

Project highlights

  • Fly ash stabilization
  • Detention pond dewatering and expansion
  • Curb ramp layout and inspection
  • ADA compliance
  • Coordination with the Union Pacific Railroad
  • Lighting and traffic signal installation