Changes the milepost marker from 331.12 to 254.00 on a portion of state route number 97 for the heavy haul industrial corridor for the movement of overweight vehicles to and from the Oroville railhead.

Requires the department of transportation to designate that portion of state route number 155 from the intersection with state route number 97 to milepost 78.86 as a heavy haul industrial corridor for the movement of overweight vehicles to the Omak mill site.