"Piling snow in the state highway right-of-way can be dangerous," says SDDOT Construction and Maintenance Engineer, John Forman. "Snow piles can restrict sight distance, as well as present an extreme hazard if a vehicle leaves the roadway. Snow piles that remain adjacent to the road may cause additional drifting and visibility problems posing more safety hazards to the traveling public."
Forman says it also creates problems for SDDOT crews trying to clear snow from the highways. It is the policy of the SDDOT to remove snow that has been piled within the highway right-of-way that may be a safety hazard. A violation of the law is a Class 1 misdemeanor.