A residential area located near the Neebing River in Thunder Bay used to be flooded in 5 of the 20 years before the Thunder Bay Floodway became operational in 1983. What is the return period of this flood? What is the probability that the residential area will not be flooded next year? What is the probability that the residential area will be flooded at least once in the next 3 years? You as a novice EIT wishes to design a small dam to provide flood protection to a community from flood events whose return period is 50 years. Compute the risk that you are willing to accept for the expected flood event to occur in the next 2 years

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Concepts of Flood Control

Flooding is a temporary overflow of water that submerges or covers the the usually dry land. It can also be defined as the overflow of the excess amount of water that covers a huge area of land which is normally dry.