This polyline shapefile depicts centerlines for the linear referencing route system on Major Creeks in the County of Santa Clara, California. The Santa Clara Valley Water District manages an integrated water resources system that includes the supply of clean, safe water, flood protection and stewardship of streams on behalf of Santa Clara County's 1.8 million residents. This layer is part of a collection of GIS data for Santa Clara County, California.To create a linear referencing route system on major creeks in Santa Clara County based on the 2001 countywide orthophotos. This coverage can be used for basic applications such as viewing, querying, and map output production, or to provide a basemap to support graphical overlays and analyses of geospatial data.