For safety and security reasons, the route for the trip is undisclosed, though the first leg snakes its way through San Bernadino and Riverside counties. The cargo will travel at night for minimal traffic, accompanied by the California Highway Patrol.

The whole rig weighs in at 700,000 pounds and can only travel at a maximum speed of 25 miles per hour.

An official says this special package could be the largest load ever to be moved such a distance distance.  In case you don't find one on your nightly commute, check out the  video.