County Highway K

Welcome to Waukesha County Public Works' info page for the 2026 project on CTH K.

Please find regular updates on project impacts to residents, businesses, and Waukesha County drivers. Thank you!

Questions and comments? Contact us!

Nate Beth
Project Manager
262-548-4720

New Materials for your review: Public Involvement Meeting #1 Exhibits and Comment Form.

Click the Public Info Meeting #1 Exhibits and Public Info Meeting #1 Comment Form tabs above to review.

New Materials for your review: Public Involvement Meeting #1 PowerPoint and 2007 CTH Feasibility Report.

Click the Public Info Materials and Project Resources tab above to review.

You are invited! Public Involvement Meeting #1

May 13, 2025
4:30-6:30pm (presentation scheduled at 5:00pm)

Sussex Civic Center
N64W23760 Main St.
Sussex, WI 53089

Click "Public Info Materials" above for more information.

Project Overview - work to be completed:

The CTH K project will examine a 5-mile segment from CTH JK (Lynndale Rd) to CTH Y (Lannon Rd). The project will address safety, pavement conditions, traffic operations, and railroad crossings.
Preliminary planning study to evaluate reconstruction alternatives which includes reconstruction without additional capacity and a future 4-lane expansion of CTH K.
Study to reevaluate whether a grade separation over the Canadian National Railroad is feasible and cost effective. This will be updating the previous study done in 2007.

Project Schedule: