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A section of the the Friant-Kern Canal in Tulare County is sinking so much that it’s lost about 60 percent of its flow. Doug DeFlitch with the Friant Water Authority says the canal that helps irrigate a million acres of farmland has sunk two to three feet in some places over about a 25 mile area. The original design capacity in the area is about 4,000 cubic feet per second and he says it’s dropped to 1,600 cfs. The 152-mile canal from Millerton Lake to Kern County was built in the 1940s. It also supplies water to places like Lindsey, Orange Cove and Terra Bella. DeFlitch blames the subsidence on five years of drought, the over-pumping of groundwater and the geology of the region. As water is pumped out of the ground the clay the area is made up of collapses causing subsidence. “One of the ways we discovered the subsidence was we were delivering some floods waters in January down the Friant-Kern Canal and underneath the bridge at Avenue 96 the water was impounding on the side of the
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