Have to go with Slick on this one. It happens. Initially, when the MUSCO lights were installed at the various tracks, they had only the "outfield" light towers and pit road lights. They didn't have the infield lights that were later installed for better perception and reduction of a strobe effect. They could easily have raced without them.
When I worked at Richmond, we laughed like crazy the year they had the big sewage backup at Charlotte and raw sewage was pouring across the backstretch causing a red flag. We quit laughing when at the very next Richmond race an employee of the Henrico County, Va. Utilities Department failed to open a valve to a main sewer trunk line used only on Richmond race weekends. We had bubbling goo coming up in the infield drains until the County properly set their valve. BUT... try telling an infield full of NASCAR racers that it wasn't a track problem!
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"Any Day is Good for Stock Car Racing"