On 11/12/13 EE was unplugging sections of the material pipeline from dredge. On a trip from the dredge to the bank, EE exited Jon Boat, his feet slipped on muddy bank. EE put left hand down to brace himself, due to force his arm slipped. EE saw Ortho on 3/13/14 diagnosed as shoulder tendonitis/labrum sprain. Ordered physical therapy 4 weeks and EE was released w/out restriction.