The Cass County Highway Department has finished posting new 65 mph speed limit signs on County Highway 6 from North Dakota Highway 18 to Cass 38; Cass 10 from Wheatland to Mapleton; Cass 4 from North Dakota Highway 38 to Argusville; Cass 26 from Barnes County to I-29; Cass 38 from North Dakota Highway 46 to I-94; and Cass 15 from Kindred to I-94.

The Cass County Commission approved an increase in the speed limit to 65 mph on these county highways on October 19. There was discussion about increasing the speed limit on Cass 11 from Mapleton to Cass 4, but that section was removed from the motion given the concerns from local residents about the speed increases and additional traffic.