Flood in Charles Mix County, South Dakota

Rainfall amounts across Charles Mix County from June 20-22 generally ranged from 2 to 5 inches. This rainfall worsened some minor water issues from thunderstorms earlier in the week, especially near Choteau Creek.

Some overland flooding resulted in damage to many roads and culverts across the county. South Dakota Highway 46-50 was closed just west of Wagner in a construction zone where there was active work on replacing culverts. In addition, there were a few homes that reported water in their basements. Preliminary damage assessments estimate loss to public infrastructure to be 3 million dollars.

A multi-day significant heavy rainfall event from June 20-22 resulted in widespread rain totals between 5 and 10 inches with pockets in excess of 15 inches across portions of southeast South Dakota, northwest Iowa, and southwest Minnesota. As rainfall reached area streams and rivers, major to record flooding was observed, devastating several towns and communities. Extensive overland flooding also resulted in significant impacts and damages. All river crest information is preliminary until made official by the gauge owner.

A Presidential Disaster Declaration was signed for Aurora, Bon Homme, Brule, Charles Mix, Clay, Davison, Douglas, Gregory, Hanson, Hutchinson, Lake, Lincoln, McCook, Miner, Minnehaha, Moody, Sanborn, Turner, Union, and Yankton Counties.