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storm drainage, and meeting FEMA and City flood plain criteria. Flood Plain Administration oversees FEMA and City regulations and provides information to the community about flood hazards, Water Quality studies watersheds and works with the schools to teach kids about water quality and flooding. Master Planning takes a long term view of solutions to problems in the different basins. The Stormwater Utility has divided the city into II basins for the purpose of planning and management (Figure 11). The basins most impacted by the July 1997 flood were Spring Creek, the Canal Importation Basin, the Old Town area, which includes the CSU campus, and the West Vine Basin to the north, Figure 11, 12 The damages at the trailer park show that normal stormwater planning will not handle extraordinary hazards and that there are many features in a stormwater system other than culverts, pipes; and detention ponds. Near the trailer park, the railroad embankment was designed to hold back the 500-year flow, but the ponded area behind the embankment exceeded the 500-year design, and the culverts under the embankment, which were designed for the lOO-year flow, could not handle this particular storm, and the water overtopped the embankment. Railroad ties were pushed out of place, there was severe erosion on the downstream face of the embankment, and some ballast was eroded as water spilled into the trailer court from the ponded area. Blockages were a primary problem with the storm drainage system, and College Avenue just downstream of the trailer park was the worst case. Debris from homes and cars floated allover town, and cars were found a week later upside down in a box of one of the bridges, Since 1989, over $5 million has been spent on storm drainage improvements in the Spring Creek basin, including acquisition and relocation of structures, channelization projects, storm drainage improvements, reinforcement of the railroad embankment, and bridge improvements. In that period, thirty trailers, two homes and a business were removed, and Creekside Park was developed. In many cases Fort Collins goes beyond federal regulations in flood mitigation work. One example is restrictions on homes built in the flood plain. Other measures include using developed flows rather than current hydrology to size facilities, Land use planning and zoning are also emphasized. In spite of Fort Collins' preparation, damages were significant, including the CSU campus, flooding in the trailer park, fires, gas explosions, a train derailment, and many individual losses. Flood Documentation, The City was very concerned about documenting the flood, and on the morning after the disaster, volunteers from local engineering firms and several state and federal agencies were organized to help document the high water marks. Teams 9