INDIANAPOLIS -- As the heaviest snowfall in 13 years buried central Indiana under a foot of snow, more than 100,000 homes and businesses in southern Indiana were without power because of ice.

As much as three-quarters of an inch of freezing rain accompanied snow and sleet in the Evansville and Louisville areas.

About 65,000 Vectren customers were without power in the Evansville area. Duke Energy reported more than 64,000 outages, most in Clark and Floyd counties near Louisville, Ky.

Vectren spokeswoman Chase Kelley said the ice was knocking down tree limbs and power lines even as workers were working on repairs.

"We're seeing it's just an absolute mess in terms of system-wide damage," she said. "There's not a county we serve that isn't touched by outages."

The Indiana Department of Transportation sent three bucket trucks to help with Vectren's efforts.

With nearly 13 inches on the ground in Bloomington and Muncie, Indiana University closed its 39,000-student campus for the day, as did Ball State University, because of hazardous travel conditions.

The University of Southern Indiana in Evansville, Vincennes University and IUPUI in Indianapolis were also closed for the day.

Travel was hazardous and most school districts in the southern-two thirds of the state closed for the day. Some rural counties also issued warnings asking drivers to stay off roads. Prison inmate were brought in by INDOT to help clear some of the state-managed roadways.

A car slid out of control Tuesday on snow-covered Indiana 64 about 30 miles west of Louisville and collided with another car, killing a Marengo woman.

Indiana State Police said Suzanne M. Mosson, 36, lost control of her car, which spun into the path of another car.

In Evansville, fire officials said the roof of a home collapsed Tuesday from the weight of snow and sleet. No one was hurt as the residents were on the first floor when the roof collapsed onto the second floor.

While snow piled up on roads in central Indiana, most were passable. Little to no wind accompanied the snowfall, which aided travelers who had to get to work.

The Indiana Department of Transportation said about 330 plow trucks were out all over the state Wednesday morning, with 60 of those focused on the Indianapolis area.

Snowplow drivers had a hard time keeping up, as snow fell heavily for several hours, covering spots that had just been plowed and salted.

The Department of Public Works in Indianapolis had its full fleet of trucks on the roads, but most secondary roads had been untreated as drivers focused on keeping the main thoroughfares open.