List of former state highways in South Dakota
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The following is a list of former state highways in South Dakota. These roads are now either parts of other routes or no longer carry a route number.
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Quick Facts System information, Notes ...
![]() ![]() ![]() Standard South Dakota highway shields | |
System information | |
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Notes | South Dakota highways are generally state-maintained. |
Highway names | |
Interstates | Interstate X (I-X) |
US Highways | U.S. Highway X (US X) |
State | (State) Highway X (SD X) |
System links | |
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