Highway 70 reopens after big rig rollover

6:45 p.m. update:  The CHP announced that the highway has reopened.

A big rig has jack-knifed in the Feather River Canyon on Highway 70 west of Twain. A reporter on scene said that both lanes are closed at this time — 4 p.m. on Monday, April 1. Updates will be posted as they become available.