Years back I lived in a town where they dug up and changed out the storm water sewer system that ran under my street. The original was 3' in diameter and they not only replaced MOST of it with new 10' diameter concrete pipe, they extended all the way across town into that pipe, adding a whole lot more storm water into that pipe, which all came down hill from the other side of town, and there was a major problem with that design. The last 200 or so feet of it before it ran into another huge main remained the same old 3' diameter steel pipe that they sleaved down to from the new 10' diameter concrete pipe. What do you think happened when we got our first real hard rainfall after that Coke bottle design was implemented? Well, when all of that rushing rain water bottle necked at the smaller 3' diameter pipe, but continued to fill that much larger 10' diameter pipe as the water kept rushing down hill and filling that pipe at an incredible amount of pressure, one by one manhole covers started getting blown off of openings, heading up hill...pow, pow, pow manhole covers went flying like frisbies, just not as far.
It didn't take a rocket scientist to figure out what and where the problem was. I saw the problem before they buried it. I stood right there and looked down in the hole shaking my head before they buried it, and went to a village meeting and warned them before we even got a good rain. Four times I tried to explain to the Mayor, Board, and planners what was going to happen if we got a hard rain. They all told me that I was nuts. First hard rain, pow, pow, pow with the manhole covers and turning the low land into a lake and flooding everyone's homes and basements. That never happened once ever before the upgrade. I went to the next meeting and said I told you so, but they countered with it was an uncommon 100 year rain, a fluke. A week or two later we got another one of those fluke 100 year rains, and a couple or few weeks again, and folks were pretty angry. The village dug up that 200 or so feet of smaller pipe and replaced it with what thet should've done the first time, same diameter into same diameter without a choke point. In the long run that may not totally take care of the increased volume brought from across town, but as far as I know from friends that still live there, manhole covers don't fly and basements don't get flooded by a manmade lake every other week anymore. Common sense and basic mechanics aren't reserved for rocket scientists.
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Today's Featured Article - Show Coverage: Journey to Ankeny - by Cindy Ladage. We left Illinois on the first day of July and headed north and west for Ankeny, Iowa. Minus two kids, we traveled light with only the youngest in tow. As long as a pool was at the end of our destination she was easy to please unlike the other two who have a multitude of requirements to travel with mom and dad. Amana Colonies served as a respite where we ate a family style lunch that sustained us with more food than could reasonably fit into our ample physiques. The show at Ankeny
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