County Highway YY
Underwood Creek Structure
City of Brookfield
Welcome to Waukesha County Public Works'
info page for the 2026 project on CTH YY - Underwood Creek Structure
Please find regular updates on project impacts to residents, businesses, and Waukesha County drivers. Thank you!
Questions and comments? Contact us!
Kevin Yanny
Project Manager
262-548-7750
Project Form Project Summary Project and Detour Plans News Release
Project Updates
January 5, 2026
CTH YY over the Underwood Creek Structure will be completely closed between January 12, 2026 and May 22, 2026
January 5, 2026
New Materials for your review: Updated project summary and news release.
Click the matching buttons above to review.
April 18, 2025
New Materials for your review: Project form, project summary, project and detour plans
Click the matching buttons above to review.
