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Caltrans InfoEdge

Caltrans News Release

District 11

Wednesday, Jan. 27, 2016

Contact: Caltrans Public Relations Officer Edward Cartagena, (619) 688-6670

Fix in the Works for I-8 Drainage System

SAN DIEGO –– Caltrans technical experts performed a thorough investigation into the 30-foot long, 20-foot wide and 20-foot deep sinkhole that appeared Thursday on the shoulder of Interstate 8 near College Avenue. The investigating team concluded that a 42-inch storm drain pipe installed in 1958, had become separated from the elbow joint approximately 40 feet below the freeway.

Caltrans is developing construction plans that will install a new drain pipe adjacent to the existing one. The work will take place beneath the highway and will require minimal highway lane closures.

“Caltrans crews have stabilized the area where the sinkhole occurred and we will continually monitor the area until the new system is in place,” said Caltrans Chief Deputy District Director Cory Binns. “We will keep the public informed of the progress as we develop the construction plans.”

Caltrans District 11 maintains more than 10,000 drainage systems, with 18,000 inlets from adjoining properties along the 1,000 center-line miles of highway in San Diego and Imperial counties.


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