does south dakota use salt on their roads
Salt Belt The term Salt Belt refers to states, in the United States, in which large quantities of salt are applied to roads during the winter season to control snow and ice. States in the salt belt include Connecticut, Delaware, Illinois, Indiana, Iowa, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, North Dakota, Ohio, Pennsylvania, Rhode Island, South Dakota, Vermont, Virginia, West Virginia, Wisconsin, and Washington DC.[1][2][3] Other states such as Colorado and Utah are also considered part of the Salt Belt but use less corrosive substances.[3]
Interstate 90 in South Dakota Since April 2015 the speed limit is 80 miles per hour (130 km/h), except it is 65 miles per hour (105 km/h) between I-229 and Marion Road in Sioux Falls; or through Rapid City. The speed limit remains 75 miles per hour (121 km/h) between Rapid City and the Wyoming state line.