EE was placing concrete forms on a pallet when one 2'x4' section slipped and hit his left leg. Doctor initially said was just bruised and to come back in one week. The next day the EE's leg was severely swollen and went to ER. Doctor said he had severed blood vessel in leg. Had to do surgery on 7/19/2012 to relieve pressure. EE will be out-of-work for 6-8 weeks.