Jan 11, 2005
Rock and mudslides closed Highways 18, 330, 138, and 173. Huge sinkholes opened up on Highway 330. Flash Flooding undermined portions of Highway 18. Flooding made Highway 138 impassible. Huge boulders littered many stretches of all major mountain highways. Some roads remained closed for month so that the damage could be repaired and the debris cleaned up. The heavy rains and flash floods resulted in 16 major storm related construction projects on San Bernardino County mountain roads.
Source: NOAA National Weather Service Storm Events Database (event 5436675). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in San Bernardino County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.