Today marks the anniversary of the deadliest man-made disaster in California history. It’s a largely forgotten event which killed hundreds of people in Ventura County. On March 12th, 1928, the St. Francis Dam collapsed, sending a wall of water more than 50 miles from the Santa Clarita area through the Santa Clara River Valley. More than 400 people died.
The urgent evacuation of 10,000 people from communities below two failing dams in central Michigan last month prevented the loss of life, but the collapsed dams expelled billions of gallons of water from two large lakes, sending them hurtling downstream in a powerful rush of destruction. Water ripped buildings off their foundations, smashed and twisted roads and bridges, damaged or destroyed an estimated 2,500 properties and triggered fears of contamination as it swept by a chemical plant and hazardous waste sites and submerged downtown Midland — a city of 40,000 people — under 9 feet of water.
With winter rains on their way, officials worry a dam that creates a small lake 17 miles west of Redding could collapse, inundating downstream homes with up to 20 feet of water if sediment and debris clogging two outlet pipes is not cleared.
Two 30-inch outlet pipes at Misselbeck Dam have been clogged with silt and debris since last summer, forcing water from Rainbow Lake to flow over the top of a deteriorated 100-year-old spillway, said Charles Tucker, president of the Igo-Ono Community Services District, which owns the dam.
The Water News Network is San Diego County’s source for water news and information.
