 Groundbreaking for the third rink expansion at South Bend's Icebox is planned for this morning at 11.30. It'll happen indoors on the ice. The $12 million expansion coming just in time for the 50th anniversary of the popular Icebox skating rink over there on South Walnut Street in South Bend. That facility plays host to area hockey teams and more. Attending the event will be South Bend Mayor James Mueller, members of the Icebox board, South Bend Regional Chamber President Jeff Rhee,