Wikipedia:WikiProject U.S. Roads/South Dakota/Resources/DOTViewer
This is a short tutorial on how to get lengths for the South Dahota DOT Viewer, link to the DOT Viewer.
1. In the top left of the map select tools.
2. Under the drop down menu select "Draw_Measure" it open on the right side on the screen.
3. In the title line, of the Draw_Measure tool, click the right triangle.
4. On that page make sure a check mark is next to "Show Measurements."
5. Click the penile, to go back to the first page, and select the "Draw Freehand hand," the third tool from left. (The other tools seem not to work with lengths.)
6. select the route you need to find the length of, the measurement will be on the online that was tracked.