First one are photos from the June 15, 1976 flood that struck Houston.
South Belt Houston Digital History Archive
http://southbelthouston.blogspot.com/20 ... oding.html
The only 'rainout' in Astrodome history occurred 39 years ago today
http://www.chron.com/news/houston-texas ... to-8155920
Houston Chronicles have many photos from the 1976 flood. It is very similar to the most recent flood.