South Dakota Highway 89


South Dakota Highway 89 is a state highway in Fall River and Custer counties in South Dakota, United States, that travels from U.S. Route 18 near Minnekahta to SD 87 in Custer State Park. The portion of the highway from Custer to SD 87 is part of the Peter Norbeck Scenic Byway.

Route description

SD 89 begins at US 18 and runs for 15.4 miles before turning north onto US 385 in Pringle where the two head north for 11.5 miles to US 16 joining the two concurrent highways in Custer. The triple concurrency lasts until entering downtown Custer where SD 89 leaves the two and joins US 16A for under a mile before turning north on the east side of Custer. There, SD 89 ends six miles later at SD 87 in Custer State Park.

History

SD 89 was established in 1950 from Spearfish to Minnekahta. The section from SD 87 to Spearfish was redesignated as US 14 Alternate and U.S. Forest Service roads. The section of SD 89 from Custer to Sylvan Lake was once part of US 85 Alternate and replaced in December 1952.

Major intersections