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was damaged and the streambank eroded. Between Lincoln Avenue and the Yampa River, Soda creek was from 300 to 500 feet wide, Along the Yampa River, the railroad was badly damaged at several locations between the depot and the upper end of town, Railroad traffic and power generation were interrupted, masses of debris collected at bridges and had to be removed, and other miscellaneous flood damage occurred. Measured stage of the Yampa River in Steamboat Springs indicated a flow of 7000 cubic feet per second, 1000 cubic feet per second greater than any previous flow of record. Flow in Soda Creek was estimated at 2000 cubic feet per second and flow in Walton Creek was measured at 2800 cubic feet per second. In April 1974, all of the streams in the Steamboat Springs area were higher than at any other time in recent history, but damage occurred principally along Butcherknife Creek. Three days of unseasonably warm weather (which accelerated snowmelt) and a heavy rain triggered flooding that began at 6 p,m, on April 25, and lasted until midnight of the 27th. Flooding of disastrous levels along the Yampa River and Fish Creek was prevented by 200 to 300 volunteer floodfighters who filled and placed sandbags and built emergency berms at critical locations. However, approximately 50 homes along Butcherknife Creek were surrounded by floodwater and approximately 300 homes were threatened. A state of emergency was declared on the 26th. Flow in the river was approximately 500 cubic feet per second above flood stage. There was some structural damage to the foundations, floors, and walls of the 50 homes inundated, but the principal flood losses comprised damage to basement appliances, such as furnaces, water heaters, freezers, washers, and dryers. Other flood losses included the costs of floodfighting and the cost of cleaning rubble covered streets, lawns, and fields. Photographs of the 1974 floods follow. 2.4 Flood Protection Measures There are no flood control projects that have an effect in the study area, and flood damage prevention comprises emergency operations during floods. The steamboat Springs zoning ordinance does not provide for flood zones, but it does require that the following be submitted to the Planning Commission for consideration if property proposed for development is suspected of being located in whole or in part within a lOa-year flood plain: a. A flood plain report including a plot of the lOO-year flood plain b. Cross sections of the stream channel c. Flow projections d. The site regrading plan 14