A faulty cable from the Bismarck Civic Center caused a three-hour blackout Thursday night at the Civic Center, the Bismarck Tribune, portions of Main Avenue and Front Avenue, a Montana-Dakota Utilities spokesman said.
The power went out around 7:30 p.m., midway through a Bismarck-Mandan girls basketball game and Bismarck-Mandan Chamber of Commerce dinner, both held at the Civic Center.
The outage was caused by equipment owned by the Civic Center, MDU spokesman Mark Hanson said.
"They have four transformers and a backup generator. A transformer cable from their equipment failed and that tripped a circuit from our sub-station (at Fourth Street and Main Avenue),” he said.
Charlie Jeske, manager of the Civic Center, said emergency lighting automatically went on for the basketball game and the chamber dinner and there was no panic.
"There was enough light for people to let themselves out. People finished eating at the banquet and the chamber event was released early," he said. "There was enough power for emergency lighting at the game, but not for a (public address) system or a scoreboard."
The crowds were good for both the game and dinner, Jeske said, though he could not give an exact count.
The interrupted girls game will continue 6 p.m. Monday and the boys match will follow sometime around 7 p.m. Monday, Jeske said.
Jeske said there was not enough power for the microphones at the chamber banquet.
"Our staff is trained for emergencies, but nobody had to be guided out," he said.
Hanson, who was attending the dinner, said it continued because generator power brought back the lights.
The source of the problem was found after crews shut down the backup power at the Civic Center, Hanson said.
At 10:45 p.m. power remained off at the Civic Center, he said.
The outage did not reach Kirkwood Mall, but caused a blackout at Denny's restaurant, across from the Civic Center.