UPDATE (3:33 p.m.) - All lanes of Highway 101 have been reopened.
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(2:20 p.m.) - A jack-knifed semi truck was causing a traffic backup on Highway 101 over the Cuesta Grade on Monday afternoon.
It happened shortly before 2 p.m. in the northbound lanes just south of the Cuesta Grade summit.
According to the California Highway Patrol, the #2 and #3 lanes of the highway were blocked, but the #1 (fast) lane remained open.
The truck was reportedly hauling several thousand pounds of squid, according to the CHP.
