Rain Creates Sinkhole On I-90 Business Loop By Chamberlain

(Chamberlain, SD) — The rainfall this week has created a sinkhole on the north shoulder of the I-90 business loop between Chamberlain and Oacoma. The road is open to one-lane traffic only and stop signs have been placed around the area that is one mile east of exit 260. The South Dakota Department of Transportation had originally planned to rehabilitate the area in 2025 with an 11-foot metal culvert. However, the original project has been pushed forward with reconstruction work to be completed during this summer and fall. Drivers are being encouraged to use exits 260 or 263 to avoid the one-lane traffic in the area.

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