By 11 a.m., the state DOT opened the closed portion of Interstate 90 between Rapid City and the Wyoming border.
An extreme travel caution is still effect, DOT officials said, as winds remained high through Thursday afternoon and much of I-90 was covered with a half-inch of ice until the afternoon sun and above-freezing temperatures turned it to water. State officials urged drivers of tall, high-profile vehicles to wait until later Thursday to travel when the winds decrease and crews have had more time to reduce the amount of ice on the roadway.
I-90 remains closed between Rapid City and Exit 260 at Oacoma/Chamberlain. Roads across much of the rest of the state have “No Travel Advised” or are marked as “Impassable/Blocked”. Crews are out where visibility allows.
There is also significant flooding in the south central, southeastern part of the state, including a section of I-90 between Exits 264 and 268 just east of Chamberlain.
If you must travel, the departments of Transportation and Public Safety recommend motorists not only take the usual winter precautions, but also to confirm you have your winter survival kit in your car. The kit should include blankets, warm clothing, water, energy bars, a flashlight, a distress flag, a shovel and matches. If you get stranded, stay in your vehicle.