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Flow velocities in the channel range from 5 to 8 1/2 feet per second and in the overbank area from 2 to 7 feet per second for the 100 year flood. The over- bank flow velocity in the vicinity of the residence hall would be approximately 4 feet per second. CORRECTIVE MEASURES Although the finish floor elevation of the new resi- dence hall is 0.3 feet above the 100 year flood plain level, the hall would be completely surrounded with floodwater with flow velocities of about 4 feet per second. Corrective measures are recommended to pre- vent damage to the structure and possible loss of life. Four basic approaches have been considered as follows: 1. Flood proof the structure. 2. Move the entire building to a new location. 3. Channelize the stream to lower the water surface elevation. 4. Construct a levee upstream from the residence hall which will divert flood waters around the building. The following advantages and disadvantages have been cal- culated for each of the alternatives. 1. Flood Proof Building Although the existing floor level is 0.3 foot above the 100 year flood plain level, the concrete foundation is actually below the flood plain. Construction of a parapet wall around the building extending up to the fin- ished floor level or slightly higher would protect the building from any possibility of movement from its foundation and also e- liminate flood damage to the floor structure. Although this would be the least expensive method of protecting the building, a safety problem still exists since flood waters would completely encircle the building during a 100 year flood event. The danger of children trying to leave the building during the flood and being swept away by the flood waters still exists. -5-