Description: The Master Plan of Highways was originally developed by the County of Los Angeles Department of Public Works (DPW); it designates roadways in Los Angeles County by their planned capacity. Categories include major highway, secondary highway, limited secondary highway, parkway, and expresswayUPDATE HISTORY:12/27/12 - for latest updates reflected in the Santa Clarita Valley Area Plan--went into effect on this day.6/17/15 - for latest updated reflected in the Antelope Valley Area Plan, adopted by the Board of Supervisors on 6/16/15.11/5/15 - for latest updates reflected in the General Plan 2035, adopted by the Board of Supervisors on 10/6/15 - effective on this day.1/10/17 - for removal of Limited Secondary Highway near Castaic along Sloan Canyon. Adopted by BOS on 12/20/16 (link to BOS resolution is here).5/30/19 - for the adoption of the Centennial Specific Plan (which became effective on this day). A link to the BOS resolution is here.4/9/25 - for the adoption of the South Bay Area Plan, removal of Del Amo Blvd between Normandie Ave and Vermont Ave.
OBJECTID (Type: Int32, Visible: False, Searchable: False, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: True, Addressable: True)
TYPE (Type: Int16, Visible: False, Searchable: False, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: True, Addressable: True)
NAMEA_ALF [Road Name] (Type: String, Visible: True, Searchable: False, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: False, Addressable: True)
NUMBER [Route] (Type: String, Visible: False, Searchable: False, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: True, Addressable: True)
HCODE_NAME [Road Type] (Type: String, Visible: True, Searchable: False, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: False, Addressable: True)
NO_LANES (Type: Int16, Visible: False, Searchable: False, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: True, Addressable: True)
Shape (Type: Object, Visible: False, Searchable: False, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: True, Addressable: True)