STH 22 is a two-lane, primarily rural roadway in central Wisconsin. A 10-mile section in Waupaca County was experiencing deterioration of pavement, beamguard, and culverts. In addition, a multiuse path parallel to the roadway required upgrades to achieve compliance with ADA standards. The WisDOT North Central Region tasked Foth with analysis and design of improvements to the pavement and other structures.
Our team prepared plans for a 2-inch mill and overlay perpetuation project of the roadway pavement, and analyzed beamguard to determine where replacements were needed. We also replaced four corrugated metal cross-culverts with new concrete culverts and apron endwalls. Most of these culverts were shallow enough for replacement without disrupting traffic, though one required a five-day road closure and detour to complete.
Pedestrian ramps along the multiuse path were analyzed for ADA compliance, with grading changes and raised detectable warning fields being added to non-compliant ramps. Along with these changes, curb and gutter repairs were made at 14 intersections along the corridor.
Final project plans included ADA ramp design, beam guard details, culvert replacement details, curb and gutter design, and a striping plan. Our team prepared environmental documentation and created a traffic control plan that incorporated the detour for culvert replacement. We also provided agency and local government coordination throughout the project.