MADERA, Calif. — A series of errors by contractors and consultants caused support cables to fail on a massive bridge in central California that’s key to the state’s bullet train project.

Documents obtained by the Los Angeles Times reveal steel supports snapped as a result of neglect, work damage, miscommunications and possible design problems.

The problems triggered an order to stop work on the bridge in Madera County that further delayed the bullet train project that’s already years behind schedule.

Late last year, crews installed temporary steel supports on the span to prevent it from collapsing.