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Geographic Information Systems (GIS) & Mapping Subcommittee . Land use planning . Ma1UJ(/ing roads & traffic . Policy TIl4king . Facility planning . Gatm,ring and distributing do.ta . Infrastructure management Several municipalities and counties in Colorado have purchased ARCllNFO Geographic Infonnation Systems (GIS) and are currently using the system. These municipal and county GIS data bases serve multiple departments of government. Although the activities of various departments may be different, they share at least one common interest. Local of. fices that use data from the same base maps include: . Administration . Utilities . Fire-Police . Land Records . Planning.Zoning . Building Inspector . Environmental.Health . Rood and Bridge The automated processing of geographic data per- mits planners to make more infonned and efficient decisions. In many local jurisdictions, floodplain maps, landslide studies and maps, dam site inunda- tion zones, known earthquake fault zones, high haz- ard steep-slope wildfire areas, and other geologic hazard data bases are filed away in various books, maps, studies and other locations. The absence of this infonnation in planning decisions has often proven dangerous or costly. A GIS can manage, dis- play, and overlay necessary geographic elements used in land development decisions much more effec- tively than ever before. E""mple - During spring runoff and the wet season of 1984 along 1-70 lrear the west side of Rifle, Colorado, a high voltage power lilre and power poles collapsed at the site of an old landslide. The failure of this high voltage transmission lilre stopped traffic along 1-70 until work crews could remove live wires (27,000 volt) from the roadway. GIG would hlrDe indicated the problem with hazard overlays. 20