Super 99 Drive-In Theater

From the research I have done so far for the Oregon Theater Project, I have noticed a pattern with Drive-ins in the state of Oregon, it seems that it was the most successful for rural/suburban neighborhoods and towns outside of the bigger cities like Portland. The Super 99 Drive-In located outside Portland in Milwaukie was one of the more well known drive-in theaters for the mid century, like most drive-ins, it could house many cars (692 to be exact) which allowed more people meaning more ticket sales. Drive-ins faced a lot of environmental impacts. The Super 99 faced multiple storms in the first decade of operation. I've included some clippings I have found so far.