Digital sign boards to appear on South Dakota interstates as early as 2025 — South Dakota News

… )- If you travel South Dakota’s interstate system you will … the South Dakota Department of Transportation says the state’s current … 09/signboards1.mp3
South Dakota will replace all of … 47;signboards3.mp3
The South Dakota Transportation Commission awarded a …… )- If you travel South Dakota’s interstate system you will … the South Dakota Department of Transportation says the state’s current … 09/signboards1.mp3
South Dakota will replace all of … 47;signboards3.mp3
The South Dakota Transportation Commission awarded a … …Read More