Bridges in Sanborn County, South Dakota
54Total Bridges
18Good
29Fair
7Poor
Sanborn County, South Dakota has 54 bridges tracked in the National Bridge Inventory. Of these, 7 (12%) are rated in poor condition and 18 are rated good. The oldest bridge in Sanborn County is 225th St. over Ck, built in 1905. The longest is Sd037 S over James Rv at 353.0 feet.