Area	Geyserville
Topic	Sediment: Road Densities for Geyserville Calwaters

 

Caption:  The chart above shows a summary of road densities in miles per square mile for the Geyserville Calwater Planning Watersheds. All Calwater Planning Watersheds, except Edwards Creek, Sausal Creek, and McDonnell Creek, have road densities exceeding properly functioning condition according to the National Marine Fisheries Service (1996), which is less than 3 miles per square mile, a value shown for reference. Cedarholm, et. al. (1981) suggests that road densities should not exceed 1.6 mi/sq. mi, which includes all Calwater Planning Watersheds in the Geyserville sub-basin. High road densities are mainly associated with urban areas. Road data originates from 1:24,000 scale topographic maps and under represent road densities, especially in urban and timber harvest areas. Roads densities are calculated by KRIS IFR staff in Arc Info. See Map for a map layer of basin wide roads. See InfoLinks for more information.

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To view the table with the chart's data, click Chart Table web page.
To download the table with the chart's data, click roads_russian_geyserville_24k.dbf (size 4,134 bytes) .
To view the table with the chart's source data, click Source Table web page.
To download the table with the chart's source data, click roads_russian_calwaters_24k.dbf (size 27,124 bytes)
 
 

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