Road Construction & Projects

Washington County Highway Department Projects

Washington County road construction is prioritized on the basis of need and roads are built with federal aid if possible with contracts let to the lowest bidder. See the map below for the County's 5-year Highway Improvement Plan for 2018-2022. All County and State projects displayed are subject to change.

5-Year Highway Improvement Plan (2018-2022)

Safety is also a primary factor when determining which roads should be improved. Washington County's GIS division has produced the following accident severity map that summarizes where roadway accidents have occurred throughout Washington County from 2012 to 2016 and how severe they were. This information is a key component when determining where safety should be improved on Washington County's highway system.

Washington County Accident Severity Map - 2012-2016

Jurisdictional Transfers

The following links summarize jurisdictional transfers being discussed between Washington County, the State of Wisconsin, and local municipalities. Washington County is spearheading discussions and aiming for win-win solutions with all parties involved. Additional details regarding proposed jurisdictional transfers can be found in agenda packets of the Public Works Committee dating back to November of 2017.

Proposed Jurisdictional Transfers 2017 (Map)
2017 Jurisdictional Transfer Draft Plan
CTH W - Proposed Improvements - STH 83 to STH 175 (as of 1/19/18) - Option 1
CTH W - Proposed Improvements - STH 83 to STH 175 (as of 2/7/18) - Option 2

Washington County Section Corner Monument Survey

Washington County has contracted with the Southeastern Wisconsin Regional Planning Commission (SEWRPC) to conduct a countywide update to the Public Land Survey System (PLSS) section corners in Washington County. SEWRPC surveyors will be collecting survey measurements on these monuments from now until the end of 2018. Work will occur within roadways and in off-road locations including on private property. Please exercise caution if you encounter such work in progress.

For more information, please see the press release and the State of Wisconsin's Right of Trespass Law below.

If you have any questions, please call Ted Dumke, Project Manager/Deputy Surveyor at (262)335-4436.

     Press Release

     State of Wisconsin's Right to Trespass Law (pdf)


CTH P Reconstruction


The Washington County Highway Department is reconstructing County Trunk Highway P from State Highway 60 north to Woodland Drive in the Village and Town of Jackson in 2018. The project area will be designed to meet current and future traffic needs and improve the safety for the traveling public. The roadway is closed to through traffic during construction.

A public meeting was held on Thursday, September 14, 2017 at the Gathering Hall at the Jackson Community Center (N165 W20330 Hickory Lane) from 6:00-7:30 p.m.


Public Notice - Public Informational Meeting on 9/14/17

CTH P Reconstruction Project Area Map (General)

CTH P Reconstruction Project Area Map (Detailed - 2,924 KB)

CTH Z/NN Reconstruction and Resurfacing


The Washington County Highway Department is reconstructing and resurfacing CTH Z/NN around Little Cedar Lake in 2018. The purpose and need for the project is to improve the long-term pavement conditions of the roadway, improve drainage and the failing slope on the west side, and reduce future roadway maintenance costs.

A second public informational meeting was held at the West Bend Town Hall on June 8, 2017 to inform the public about the project. Please see the following links for more information.


Project Area Map

Project Detour Route

Public Informational Meeting Handout

Public Informational Meeting Map Exhibit


CTH K Reconstruction

Washington County is planning to reconstruct a 2.6-mile section of CTH K from State Trunk Highway (STH) 83 to Interstate 41 in 2019. The project is located in the Towns of Addison and Hartford.

The project will improve the poor condition of the existing roadway pavement. Turn lanes at intersections and upgrades to the vertical curves are being evaluated to improve safety for the traveling public.

A public meeting was held on Thursday, February 22, 2018 at the Addison Town Hall (127 1st St Allenton, WI 53002) from 6:00-7:30 p.m.

Public Notice - Public Informational Meeting on 2/22/18

Public Comment Form (accepted via mail or email until March 9, 2018)

2018-0222 PIM Detour
2018-0222 PIM Overview 1
2018-0222 PIM Overview 2
2018-0222 PIM Overview 3
PIM Handout
GRAEF Presentation

CTH K Reconstruction Project Area Map

WisDOT Construction Projects In Washington County

For updates and information regarding WisDOT construction projects in Washington County and southeastern Wisconsin, please visit: or call 511.