MY RAW VIDEO - As seen on KCRG TV-9 - http://www.kcrg.com/news/local/Waterloo--214425821.html Waterloo Fire officials confirm a woman has died in a trench collapse in Waterloo. Waterloo rescue crews responded to the scene of a trench collapse around 2 p.m. this afternoon. The construction site sits on part of San Marnan Drive near the Sunnyside Country Club. Waterloo Fire Chief Pat Treloar said the woman who died was a construction worker. Emergency crews recovered her body after about three hours. The woman's name is not public at this time. Authorities are still investigating.