If a sign is already up at a given location with one message facing traffic, the opposite face of the new sign is turned to traffic so that the message is not repeated. These campaign signs were introduced on the South Dakota state highway network in 1982, and over time the program has had some unexpected but generally beneficial side-effects, such as enabling motorists to recognize locations with several of these signs as accident black spots. Telecopier Permits Sign. As this sign indicates, South Dakota offers truckers the convenience of requesting permits by fax. This is a specimen of state-entry signs aimed at truckers which also confuse private passenger car drivers.
Colors are white on green.
Junction Interstate 90 South Dakota in Sioux Falls . Interstate 90 South Dakota and South Dakota Route 115 in Sioux Falls . Junction Interstate 29 South Dakota and U.S. 81 on South Dakota Route 10 near Sisseton. Unpaved Detour U.S. 212 near Gettysburg South Dakota Route 377. South Dakota Route 73 Shield.