IH 39 Central Segment

Transportation – Design

Looking North on IH 39 in Janesville, Wisconsin

KL Engineering was the prime engineering consultant for the design of 13 miles of IH 39 from County Highway O to the Rock/Dane County line. The interstate was completely reconstructed and expanded to eight lanes from County O to WIS 26 and six lanes from WIS 26 to the Rock/Dane County line.

Key features of the proposed improvements included urban multi-lane roundabouts, local roadway improvements, over thirty bridges, retaining walls, noise barriers, complex construction staging, pedestrian and bicycle accommodations, and two park & ride lots. Complex drainage design included water quality analysis, storm sewer design and TMDLs. KL designed the sanitary sewer and water main adjustments related to local infrastructure improvements too.

Lighting design for roundabouts, urban roadways, freeways, bridges and park and ride lots and  traffic analysis, traffic signals, adaptive signal control system design were included in this effort.

Coordination with railroads, real estate acquisition, and general public involvement were key elements that supported the roadway design.

2019 WisDOT Excellence in Highway Design Award – Best Structure (Rock River)

2020 WisDOT Excellence in Highway Design Award Finalist – Best Urban Project (CTH O-USH 14)

2014 WisDOT Excellence in Highway Design Award Finalist – Best Urban Project (STH 11 / Racine Street)

Project Details

Client:Wisconsin Department of Transportation (WisDOT) & City of Janesville
Derek Potter, WisDOT Southwest Region Project Manager
Limits:CTH O to the Rock / Dane County Line
(13 miles) in Wisconsin
Service Dates:November 2011 – November 2017
WisDOT ID:1005-10-01
KL Contact:Brad Halvensleben, PE

Project Elements

  • Rural Interstate / Urban / Intersection Roadway Design
  • Multi-Modal Accommodations
  • Bridges & Retaining Wall Design
  • Drainage Improvements
  • Roundabout Design
  • Utility Coordination
  • Public Involvement
  • Traffic Control & Construction Staging
  • Traffic Signal & Lighting Design
  • Local Infrastructure Improvements
IH 39 & STH 11 / E. Racine Street Interchange with Park & Ride Lot