aside - I've witnessed that scene in my backyard. There was an 11 inch concrete sewer main, from 1957, running along the creek. About 15 years ago they installed three of those manholes along the line, in my yard. Every time there was a heavy rain all three would blow off, just like that picture, and dump into the creek. After complaining for 5 years, they replaced the line with a new 29 inch line and eliminated the manholes, but it sure was disgusting for awhile.
