The Rolling Thunder Big Rig Semi-Truck races will come to Southern Oregon Speedway tonight.

The Rolling Thunder Big Rig Semi-Truck races will come to Southern Oregon Speedway tonight.

It's the first time the full-size semi-trucks will appear in Southern Oregon.

There also will be a $1,000-to-win modified race as well as dwarf cars, mini stocks and street stocks.

General admission is $20; kids, seniors and vets (with identification) cost $15; reserved seating is $25; and kids 5 and under get in free.

Gates open at 4 p.m., racing is at 6.