WIS 78 (Elma Ave to County DL & Box Culvert repairs)

Project location | Project overview | Public involvement | Schedule | Traffic impacts/detours | Status/phase | Contact information

​Project location

WIS 78 (Elma Ave to County DL & Box Culvert repairs), Sauk City to I-39 – Columbia & Sauk Counties

Project overview

The projects will address a deteriorating box culvert structure and 2.85 miles of deteriorating pavement on WIS 78 between Sauk City and I-39 in Columbia County and Sauk County. The projects will consist of replacing the box culvert structure 0.23 miles north of Blau Drive​ (C-11-3005), and resurfacing WIS 78 from V Merrimac N Limit to County DL in with a 3 ½ - inches mill and asphalt​​ overlay.

Additional improvements include:

  • Replace the approach asphaltic material at C-11-3005 with structure replacement
  • Structure work on box culvert C-11-2027
  • Installation of new guardrail to meet current standards
  • Installation of gravel shoulders to match the final roadway elevation
  • Installation of permanent pavement marking

Public involvement

November 2020 - Virtual public involvement meeting (PIM)



Traffic impacts/detours

​WIS 78 will be closed to thru traffic during construction.

  • ​A detour will utilize the following routes:
    • Northbound WIS 78:
      • US 12 West to WIS 33 East
    • Southbound WIS 78:
      • WIS 33 West to US 12 East​

Detour Map



Contact information

Josh Koebernick, P.E.
WisDOT Project Manager
(608) 246-3859

Michael Bie
WisDOT Southwest Region Communications Manager
(608) 246-7928

Wisconsin Department of Transportation (WisDOT)
Southwest Region, Madison Office
2101 Wright Street
Madison, WI 53704
Phone: (608) 246-3800
Fax: (608) 246-3843
TTY: 711
Email: swr.dtsd@dot.wi.gov​​