Work zone impact thresholds
On high-volume, high-speed traffic roadways in North Dakota where the entire roadway must be closed because of the work requirements such as erection of beams over the roadway, the state requires contractors to work at night when traffic is light. In areas that have lighter traffic, the contractor is required to close the roadway for 15 minutes or less and flag traffic.
State/Agency: North Dakota
Topics: Lane Closure