Effective Friday March 20th, 2020 - Building access CLOSED to the Public except with a SCHEDULED APPOINTMENT  For details:

Road and Bridge Construction

RoundaboutEach year the Cass County Highway Department engages in construction activity to improve the County Highway System. These improvements include such projects as constructing new roads, replacing deficient bridges and structures, adding turn lanes or other facility improvements such as bike lanes or multi-use paths, surface rehabilitation or improvements, and many other activities.

County construction projects typically take place during the summer months where County engineering staff provides oversight to all construction projects.  Winter months are typically devoted to planning & design for upcoming projects.  County construction engineers also play an important role in supporting flood related operations. For questions on County construction projects please contact the Highway Department.


The County Highway Department annually schedules next year’s construction projects during the budget process.  In an effort to increase efficiency and maintain a high level of transparency, a Cass County Comprehensive Highway Plan has been developed.

This Plan acts as a document that more efficiently displays our data and serves as a 5 year Capital Improvement Plan (CIP) and is revisited annually.  Included in the plan is a discussion of land use, highway safety, maintenance and construction.

Click on the links to explore more:


Road Closures for Cass Highways for the 2020 Construction Season



Cass County Highway 10 between Cass County Highway 11 and 9th Ave N in Casselton will be closed starting May 4th, 2020.  The highway will remain closed until August 31st or until project completion to regrade road surface from Cass County Highway 11 to 9th Ave N in Casselton. Alternate route is Interstate 94, via Cass County Highway 11 or State Highway 18.



Construction Projects Interactive Mapping:

(Click HERE for full screen or mobile)