Almost 75 years ago, the city fathers of Portsmouth, Ohio, ordered the sewers opened so that high water from the Ohio River would inundate the town gradually rather than violently. As a journalist of the time commented, â??The people knew better than to argue with the river.â? Triggered by days of torrential rainstorms that astounded even many veterans of earlier floods, the waters in January 1937 would eventually crest 15 feet above flood stage and earn the engineering designation of â??thousand- year flood,â? one statistically expected to occur once in a millennium.
