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Current version – January 1, 2013 This layer contains Legal City boundaries (as opposed to Postal City) within L.A. County. The boundaries will not line up with the Thomas Brothers city layer. Link to DPW GIS Data Site: http://dpw.lacounty.gov/general/spatiallibrary
Keywords: Bikeway, Bicycle, off-road Abstract: The dataset includes the bikeway network proposed in the 2012 County of Los Angeles Bicycle Master Plan. Purpose: The dataset includes the bikeway network proposed in the 2012 County of Los Angeles Bicycle Master Plan. The Plan proposes more than 800 miles of bikeways to be installed throughout the [...] Address Points Current data date: June 2012 – we will be releasing new versions of this data periodically. This dataset contains address points from the Countywide Address Management System, a collaborative program between the County’s Registrar/Recorder, Chief Information Officer, Public Works Department, Department of Regional Planning, and many local cities [...] CAMS Data (October 2011) Current data date: August 2012 – we will be releasing new versions of this data periodically. Important note: This file is not final – it is an intermediate step and should be used with the understanding that further work is being performed. Description The LA County Street Center TIGER [...] Abstract: This layer contains the 2011 Official Supervisorial District Boundary for the County of Los Angeles. Purpose: Supervisorial District Boundary map for the County of Los Angeles Access Constraints: Sharable Data can be downloaded here Note: the shoreline boundary shown on this layer is approximate and subject to change. [...] Abstract: Los Angeles County Boundary Purpose: General mapping use Data can be downloaded here Abstract: Los Angeles Basin, Santa Clara River Basin, and Antelope Valley are divided into zones that yield similar volumes of sediment under similar conditions. These are called Debris Potential Area (DPA) zones. Sediment production from a watershed is a rate at which sediment passes a particular point, usually expressed as cubic yards per square [...] Abstract: This layer contains Garbage Collection boundaries within the contract cities serviced by L.A. County DPW. Disposal districts maintained by other agencies, like City of LA or LA County Sanitation District, are not shown here. Purpose: General mapping use Data can be downloaded here [...] Abstract: County Lighting Maintenance District shows the boundaries where Los Angeles County Traffic & Lighting Division maintains the street lights. Data can be downloaded here Abstract: Areas maintained by the Los Angeles County Flood Maintenance District. Purpose: General mapping use Data can be downloaded here Abstract: Areas maintained by Los Angeles County Department of Public Works – Road Maintenance Division. Purpose: General mapping use Data can be downloaded here Abstract: This is the grid used to create the Los Angeles County cadastral database. The grids are 15,000 feet high and 20,000 wide. Purpose: Base map for the cadastral database Data can be downloaded here [...] Abstract: This represents the groundwater basins and sub-basins as defined by the California Department of Water Resources. Groundwater basins are designated on the basis of geological and hydrological conditions, these usually being the occurrence of alluvial or unconsolidated deposits. When practical, large basins are also subdivided by political boundaries, as in the Central Valley. [...] Abstract: The location of the ALERT(Automatic Local Evaluation in Real Time)/Automatic rain gages; These sites use tipping buckets with real-time data telemetry and/or electronic data loggers to indicate rainfall totals and intensities. Purpose: Data collected is used for calculating rainfall totals and intensities. Data can be downloaded here [...] Abstract: Location of manually Observed Non-Mechanical Rain Gages; These gages are measured once daily by volunteers and reported monthly. Purpose: For calculating rainfall totals and intensity Data can be downloaded here [...] Abstract: This data set depicts Los Angeles County precipitation intensity for 24-hour events and return periods of 50 years. Purpose: Display and/or analyses requiring precipitation intensity for Los Angeles County Supplemental Information: The latest version of this data is available at http://ladpw.org/wrd/publication/. Please contact Ben Willardson (626-458-6117) for information about this data. Abstract: Stream Gage locations. Purpose: General mapping use Data can be downloaded here Abstract: This layer is a representation of the Water Purveyor Service Areas within Los Angeles County. Purpose: General mapping, long term water supply planning, and to aid in emergency management during drought. Data can be downloaded here A list of Water Companies is attached in this Excel File: Water Company Database.xls [...] Abstract: Watershed Management Area. Based on sub-watershed boundaries, which were digitized by Public Works from USGS quads. Purpose: To determine subareas within NPDES Municipal Stormwater Permit Data can be downloaded here [...] Abstract: Direction of water flow between sub watersheds (or watershed sub basins). Data can be downloaded here Abstract: Parks maintained by Los Angeles County Department of Parks & Recreation. Purpose: For general mapping use. Data can be downloaded here Abstract: A polygon layer showing soil types in Los Angeles County. This layer shows the delineation and the county soil number (2-180). These soils have runoff coefficient curves associated with them found in the hydrology manual (http://ladpw.org/wrd/publication/) that allow an individual to determine how much runoff results from rainfall. This includes soils in the [...] Abstract: Location of Community Libraries that provide service to residents living in the Los Angeles County Unincorporated areas and residents of 51 of the 88 incorporated cities of Los Angeles County. Purpose: For general mapping use Data can be downloaded here [...] Abstract: Sanitary Sewers Maintained by the Los Angeles County Sewer Maintenance Districts (SMD). Purpose: Identifies sanitary sewers (gravity sewers, siphons and force mains) maintained by the Department of Public Works. Supplemental Information: The Los Angeles County Department of Public Works operates two special districts for the purpose of maintaining sanitary sewers: The Marina del [...] Abstract: City Sanitary and Private Sewers not Maintained by LA County. Purpose: To identify nearby private and city sanitary sewers that county sewer crews do not maintain Data can be downloaded here [...] Abstract: Sewer Maintenance Operations Map Sub Grid. Each Op map originally divided into 12 sub grids A1 through D3. Purpose: For showing and querying facilities that lie within different Sewer Maintenance operations map sub grids Data can be downloaded here [...] Abstract: Annotation for the Storm Drains. Purpose: To be used with the storm drains line work. Data can be downloaded here Abstract: The Los Angeles County Sanitation Districts spearheaded the SDI to tie all of the sources of information together for the benefit of local cities, county, regional authorities, and environmental interest groups. Purpose: The Storm Drain Initiative (SDI) is a cooperative effort to develop and maintain a complete geographical information systems (GIS) layer of [...] Abstract: Storm Drains within Los Angeles County. Purpose: Used for the Los Angeles County Drain Book (2002). Data can be downloaded here Abstract: Point layer of street lights in Los Angeles County.. Purpose: This dataset keeps a graphical inventory of the street lights in Los Angeles County and is updated by Los Angeles County Department of Public Works (Traffic and Lighting Division). Data can be downloaded here [...] Abstract: Maintenance Holes Maintained by the Los Angeles County Sewer Maintenance Districts (SMD). Purpose: Identifies sanitary sewer maintence holes maintained by the Department of Public Works Data can be downloaded here [...] Abstract: City Sanitary and Private Sewer Maintenance Holes not Maintained by LA County. Purpose: To identify nearby private and city sanitary sewer structures that county sewer crews do not maintain Data can be downloaded here [...] Abstract: Sewer Maintenance Operations Map Grid. Purpose: For showing and querying facilities that lie within different Sewer Maintenance operations maps Abstract: Each grid in the Index Map was divided into 25 grids to create the House Numbering (HN) Map. The grids in the HN map are 3000 ft high and 4000 ft wide. The Mat_No refers to the House Numbering Grid and the IM_No refers to the Index Map grid. Purpose: Base map for [...] Abstract: Pump Stations Maintained by the Los Angeles County Sewer Maintenance Districts (SMD). Purpose: Identifies sanitary sewer lift stations maintained by the Department of Public Works
Abstract: Boundaries of sub watersheds or watershed sub areas. Original areas were drawn on U.S.G.S. 7 ½ minute, 1:24,000 scale topo quad sheets by Hydraulic Water Conservation Division. Digitized into ComputerVision CADDS4 by Environmental Programs Division (EPD). Converted to Atlas GIS Atlas Graphic Format (.agf) by EPD. Cleaned up, topology built, downstream connectivity developed [...] Abstract: Major individual Watersheds within the Santa Monica Bay Watersheds. Purpose: To identify Major watersheds within the Santa Monica Bay Watersheds Abstract: This data set contains Los Angeles County spreading ground data as provided by the LA County Public Works Department (Water Resources). The use of water conservation facilities adjacent to river channels and in soft-bottom channels permits water to percolate into groundwater basins for later pumping. These water spreading facilities are located in areas [...] Abstract: The debris basin right of way depicts the limits of ownership or access rights in fee or ease within the facility. The debris basin itself consists of an earth dam or other barrier constructed across a drainageway or other suitable location for collecting sediment. The dam is provided with properly designed spillways to [...] Abstract: Debris Basins are key components of the Los Angeles County Flood Control District’s flood control system. Typically located at the mouths of canyons, debris basins capture sediment, gravel, boulders, and vegetative debris that are washed out of the canyons during storms but allow water to flow into the downstream storm drain system, thereby [...] Abstract: Location of DPW, LACFCD and some City catchbasins. Purpose: To map Catch Basin locations for cleanout contracts. Also for general mapping purposes. Data can be downloaded here [...] Abstract: Polygon layer showing areas serviced by the different building and safety district offices within unincorporated county areas. Purpose: Building and Safety Permits Data can be downloaded here [...] Abstract: Catch basins retrofitted with manually retractable screen (MRS), automatic retractable screen (ARS) or fixed basket insert (FBI). Purpose: To identify and locate catch basins with retrofit for inspection purposes. This is to ensure that they are functioning properly during a storm event. Data can be downloaded here [...] This aerial imagery was captured in 2001 in a cooperative project between the Los Angeles County Department of Public Works and Regional Planning. It represents the initial imagery capture by the County of Los Angeles, which later become the Los Angeles Regional Imagery Acquisition Consortium (LAR-IAC). Three imagery resolutions were captured: 1 foot [...] The Los Angeles County Department of Public Works provides a Spatial Information Library for CAD and GIS data. The data is not loaded from this Data Portal, but can be viewed by visiting the link below. Spatial Information Downloads Download GIS files in ArcView shapefile format and examine their metadata. DGN Downloads Search [...] |
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