VIDEO: While the shores of Lake Winnebago see ice shoves annually, massive ice mounds and strong winds this week are providing a stark reminder of just how powerful those shoves can be. State Senator Roger Roth witnessed it first hand, as he watched an ice shove destroy his boathouse Wednesday afternoon. It's one of the many buildings that were damaged along the lake's east shore this week. "The [boathouse's] basement is full of ice," says Chief Michael Funk of the Stockbridge Fire Department," all the way from one end to the other."