The accident: Working in the December cold, a utility construction worker was helping install a sewer line in a 25- to 30-foot-deep trench. A steel trench box was in the excavation but was not large enough to reach the bottom of the trench.
The accident: Working in the December cold, a utility construction worker was helping install a sewer line in a 25- to 30-foot-deep trench. A steel trench box was in the excavation but was not large enough to reach the bottom of the trench.