A Waikato man was crushed in a cow underpass this morning after the bank he was working on gave way. The man suffered a broken arm and dislocated shoulder when the bank on Ngahinapouri Road, 16km southwest of Hamilton, collapsed about 7.40am, Senior Sergeant Kevin Anderson said. The man, working for a local contracting company, was fitting the underpass at the time. "He was trapped from about the chest down and his co-workers dug him out by hand," Mr Anderson said. He was taken to Waikato Hospital for treatment, he said. The Department of Labour was investigating.