EMPLOYEES WERE LIFTING A 10 BY 10' TAKE UP BEAM,. THEY WERE GOING TO PUT IT IN TO CONNECT IT TO A CROSSBEAM. WHEN THEY PUT THE BEAM IN PLACE EE SLIPPED IN THE MUD AND FELL TO THE GROUND. WHEN HE FELL HE STRUCK ANOTHER BEAM THAT WAS THERE FOR THE JOB. HE HAD PAIN IN RIGHT LEG.