Factual background of the case
In Nov. 2015, Mark Krein was walking on a suspended steel footbridge at his job at the Tuolomne Water District. The bridge had been constructed in 1974 as a part of a wastewater treatment plant, and it connected one digester tank to another. While Krein was walking across the footbridge, it suddenly collapsed beneath him. He plummeted to the ground and suffered severe injuries that resulted in paraplegia.