The South Dakota Department of Transportation says two exit ramps will be closed the nights of September 15, 16 and 17 at the I-29 and I-229 interchange.

The I-29 southbound to I-229 northbound ramp and the I-229 southbound to I-29 southbound ramp will be closed from 8:00 PM to 5:00 PM on Thursday, Friday and Saturday while the contractor sets girders for the new northbound bridge on I-29.

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