County Highway K

The USDOT’s Better Utilizing Investments to Leverage Development (BUILD) Grant program provides funding for surface transportation projects with significant local or regional impact. It enables project sponsors to pursue complex, multi-modal, and multi-jurisdictional projects that are often difficult to finance through traditional grant sources. Waukesha County believes the County K Grade Crossing Elimination Project is a strong grant candidate that will perform well during evaluation and exceed the published grant merit criteria, project readiness determination, and benefit-cost analysis.

The proposed elimination of the at-grade CN Railroad crossing is part of our larger planned expansion and modernization of the CTH K (Lisbon Road) corridor between CTH JK (Lyndale Road) and Brookfield Road. The BUILD grant will help fund the expansion of CTH K between CTH F (Redford Blvd) and Roberta Drive, the construction of a new highway bridge over the CN Railroad, highway safety improvements, local road improvements, and new bike/pedestrian accommodations.

The County K Grade Crossing Elimination Project is the first step in completing the 6-mile CTH K Corridor expansion and modernization and would be constructed in 2031-32, subject to a successful BUILD grant application and USDOT awarding Waukesha County federal funding.

Click the drop-down menus above within the BUILD Grant Program Information section to view relevant documents.

July 10, 2025

New Materials for your review: Public Involvement Meeting #2 Exhibits and Information

Click the Public Info Meeting #2 Exhibits/Info tab above to review.

June 5, 2025

You are invited! Public Involvement Meeting #2

July 9, 2025
4:30-6:30pm (presentation scheduled at 5:00pm)

Sussex Civic Center
N64W23760 Main St.
Sussex, WI 53089

Click "Public Info Meeting #2 Mailer" above for more information.

May 19, 2025

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.

May 16, 2025

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.

May 1, 2025

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.

February 25, 2025

Project Overview - work to be completed:

The CTH K project will examine a 5-mile segment from CTH JK (Lynndale Rd) to Brookfield 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: