Colorado State Patrol says as of Saturday, the number of Country Jam related DUI's is up 100 percent.
Last year State Patrol issued 15 DUI's. This year they've already handed out 30.
On Saturday night troopers set up a check point catching seven people for drinking and driving.
State Patrol says they have the same man power they had last year but the check point is a new thing.
Sunday night troopers plan to crack down again.