The employee and another team member had been on the dredge pond adding pipeline to the dredge from 6:30a.m. to 8:30a.m. At about 9:30a.m., Darrell approached his team member to tell them that he had strained something in his right hand while pulling on a wrench tightening bolts. His right hand began to swell a little and had some discoloration. He was taken to the doctor.