For the second year in a row, the State Water Project will cut deliveries to 5% of requested supplies amid a continuing drought that officials Thursday termed “a new era.” The network of 21 dams and hundreds of miles of canals, pipelines and tunnels serves 27 million Californians from Chico through the Central Valley to Los Angeles, though not San Diego County.
It was a harrowing vision of the vulnerability of aging California dams — crews laboring feverishly to sandbag and drain the lower San Fernando Reservoir, as billions of gallons of Los Angeles drinking water lapped at the edge of a crumbling, earthquake-damaged embankment that threatened catastrophe on the neighborhoods below. Although the 1971 San Fernando earthquake and the near failure of the Lower Van Norman Dam have given rise to construction improvements — the much newer Los Angeles Dam survived an equivalent shaking in the 1994 Northridge quake — the overwhelming majority of California dams are decades past their design life span.
A recent UCLA study says that in the next 40 years, California could likely see a flood massive enough to cause nearly $1 trillion of damage, force millions of people to evacuate, and leave houses in California’s Central Valley 30 to 40 feet underwater. And the state is ill-prepared when it comes to infrastructure like dams that could prevent flooding.
The Water News Network is San Diego County’s source for water news and information.
