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mapping services: standard maps: planning map series
Planning Map Series

The Planning Map Series is intended to provide a generalized geographic context for a moderately large area, using a scale of 1:9600 (1 inch on the map = 800 feet on the ground). Available Themes include: Critical Areas, Street Network, Topography & Drainage, Public Facilities, Present Land Use. Each theme, with the exception of Present Land Use is also available as a single preprinted, City Wide map.

 
Critical Areas
critical areas map A Critical Areas Map is used by planners when performing site suitability analysis, or to identify potential building restrictions in environmentally sensitive areas. It is also used by emergency staff to define areas of interest for earthquake mitigation and response.

Themes
Critical areas include liquefaction zones, wildlife corridors, steep slopes over 40%, potential slides areas, known slide areas, wetlands, and riparian corridors. The boundaries are generalized from several data sources and should be verified in the field if accuracy is important.

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