It has always been the weekend after our labor day which is the first Monday in September.
Looks like they have the park reserved for September 7th, 8th and 9th.
http://www.riversidemo.com/recreation/page/2018-midwest-all-truck-nationals
There is not much other info out yet though.

Don


1967 GMC 9500 Fire Ladder Truck
"The Flag Pole"
In the Stovebolt Gallery
1946 2-Ton grain truck
1946 3/4-ton pickup,
1953 1-ton pickup
1957 1-ton flatbed dually,
1954 Pontiac Straight Eight
Of all the things I've lost in my life, I miss my mind the most!