EE WAS INSTALLING PUNCH PLATE ON THE NEW RIP RAP SCREEN. AS HE WAS ATTEMPTING TO FREE THE LIFTING CHAIN (WHICH WAS WEDGED UNDERNEATH) FROM THE SCREEN PANEL, THE BAR HE HAD WEDGED UNDER THE PANEL SLIPPED AND THE PANEL DROPPED ABOUT A HALFINCH AND PINCHED THE END OF HIS FINGER, FRACTURING IT.