Abstract: At approximately 12:30 pm. on July 12, 2011, Employee # 1, of Harris Salinas Rebar, Inc. was repositioning himself on a shear wall on the new U.N.R. Living Learning Community (BLD #004), Reno, Nevada. The shear wall which was located on the northwest end of the project was approximately 40 feet in height with an excavated trench located below on the north side of the wall. Employee # 1 was working his way down the wall when he stopped to tie an area off, apparently only connecting his one positioning hook and not his lanyard. Employee # 1 continued to work on the rebar when his positioning hook slid off the horizontal rebar member, which had not been completely tied off at the intersection and fell to the north, landing in the trench. Employee # 1 fell approximately 45 feet into the trench suffering injuries including fractured ribs.