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This physical structures points feature class represents current wastewater information in the City of Los Angeles. The maintenance hole structure is used to provide access to the sewer from the surface. The Mapping and Land Records Division of the Bureau of Engineering, Department of Public Works provides the most rigorous geographic information of the sanitary sewer system using a geometric network model, to ensure that its sewers reflect current ground conditions. The sanitary sewer system, pump plants, wyes, maintenance holes, and other structures represent the sewer infrastructure in the City of Los Angeles. Wye and sewer information is available on NavigateLA, a website hosted by the Bureau of Engineering, Department of Public Works.Associated information about the wastewater Physical_structure is entered into attributes. Principal attributes include:JUNCTION_SUBTYPE: junction subtype is the principal field that describes various types of points as either Diversion Structure, Drop or Drop Trap, Flush, Junction Chamber, Junction Structure, Maintenance, Offset, Other Structure, Siphon, Special Shallow, Special Structure, Terminal, Transition, Trap, Valve Vault, Weir. For a complete list of attribute values, please refer to (TBA Wastewater data dictionary).  Wastewater Physical Structures points layer was created in geographical information systems (GIS) software to display the location of wastewater structures. The structures points layer is a feature class in the LACityWastewaterData.gdb Geodatabase dataset. The layer consists of spatial data as a points feature class and attribute data for the features. The points are entered manually based on wastewater sewer maps and BOE standard plans, and information about the points is entered into attributes. The physical structures points data layer differs from non-structures points data layer, such that physical structures points are maintenance holes. Reference the JUNCTION_SUBTYPE and MH_TYPE field for the type of structure. The STRUCTURE_ID field value is the unique ID. The wastewater structures points are inherited from a sewer spatial database originally created by the City's Wastewater program. The database was known as SIMMS, Sewer Inventory and Maintenance Management System. Structures information should only be added to the Wastewater Structures layer if documentation exists, such as a wastewater map approved by the City Engineer. Sewers plans and specifications proposed under private development are reviewed and approved by Bureau of Engineering. The Department of Public Works, Bureau of Engineering's, Brown Book (current as of 2010) outlines standard specifications for public works construction. For more information on sewer materials and structures, look at the Bureau of Engineering Manual, Part F, Sewer Design section, and a copy can be viewed at http://eng.lacity.org/techdocs/sewer-ma/f400.pdf. For more information on maintenance holes, a copy can be viewed at http://boemaps.eng.ci.la.ca.us/reports/pdf/s140-0_std_pl.pdf.List of Fields:SERVICEID: User-defined unique feature number that is automatically generated.OBJECTID: Internal feature number.FACILITY_NO: This field is currently not being edited.ENG_DIST: LA City Engineering District. The boundaries are displayed in the Engineering Districts index map. Values:     • W - West LA Engineering District.     • H - Harbor Engineering District.     • C - Central Engineering District.     • V - Valley Engineering District.CNCL_DIST: LA City Council District. Values:     • (numbers 1-15) - Current City Council Member for that District can be found on the mapping website http://navigatela.lacity.org/index.cfm, click Council Districts layer name, under Boundaries layer group.CRTN_DT: Creation date of the point feature.MDIST: This value is the maintenance district identifier. Bureau of Sanitation needs to provide BOE with updated definitions. This field is currently not being edited.LAT: The value is the latitude coordinate of the point.USER_ID: The name of the user carrying out the edits of the structure data.LON: The value is the longitude coordinate of the point.NAME: This field is currently not being edited.VDATUM: This is the year of the standard plan, which contains the information the user enters into pipe data.MHMATERIAL: The value is the material that the structure is made from. This information is not specified on the standard plan. Values:     • UNK - Unknown.     • RCP - Reinforced Concrete Pipe.     • CSP - Corrugated Steel Pipe.     • CIPC - Cast in place concrete.     • C - Concrete.     • BRK - Brick.     • PRC - Precast Reinforced Concrete.     • B - Brick.     • CON - Concrete.     • VCP - Vitrified Clay Pipe.     • O - Other.     • P - Plastic.BLKNO: The value is the block number of the street on which the physical structure is located.STREET2: The value is the cross street name on which the physical structure hole is located, if applicable.COVERDIAM: The value diameter of the physical structure cover expressed in feet.BARRELDIAM: The value diameter of the inside of the physical structure expressed in feet.STATUS: This value is the active or inactive status of the structure. Values:     • ABAN - Proposed Inactive.     • PROP_ACT - Proposed Active.     • INACT - Inactive.     • ACT - Active.     • ABAN - Abandoned.SEQ: The value is the sequence number of the maintenance hole.SHAPE: Feature geometry.STREET1: The value is the street name on which the physical structure is located.MH_BASE: The value is the non-structure base, used by Bureau of Sanitation to describe the direction of flow at the intersection of a pipe and a non-structure. Values:     • F - F.     • B - B.     • G - G.     • H - H.     • Q - Q.MH_TYPE: The value signifies the maintenance hole type or other structure type. Values:     • DMH - Drop Maintenance Hole.     • CFS - Confluence Structure.     • DMT - Drop trap Maintenance Hole.     • ABN - Abandoned.     • BPS - Bypass Structure.     • DI - Diversion Structure.     • SH - Shallow Maintenance Hole.     • OMH - Offset Maintenance Hole.     • RV - Relief Valve.     • SIP - Siphon.     • VV - Valve vault.     • LH - Lamp Hole.     • FL - Flush Station.     • GV - Gate Valve.     • TRP - Trap maintenance hole. This type of structure is used to prevent sewer gases from flowing upstream in the sewer line.     • HD - Transition.     • TRS - Transition structure.     • FT - Flush Tank.     • WMH - Weir maintenance hole. This type of structure is used to gauge sewer flows. Automatic recording devices may be installed for flow measurement.     • INA - Inactive.     • MH - Maintenance Hole.     • OTH - Other structure.     • FS - Flush Station.     • WW - Wet well.     • JT - Junction Chamber Trap.     • JC - Junction Chamber.     • PMH - Pressure Maintenance Hole.     • PS - Pump Station.     • FMH - Flush Maintenance Hole.     • TMH - Terminal maintenance hole.     • GS - Gauging Structure.     • JS - Junction Structure.LID_ELEV: The value is the lid elevation of the structure, in decimal feet.BASIN: The value is basin number.OWNER: This value is the agency or municipality that constructed the physical structure. Values:     • CTY - City of LA.     • FED - Federal Facilities.     • OUTLA - Adjoining cities.     • COSA - LA County Sanitation.     • PVT - Private.COMMENTS: This attribute contains comments of structures and structure status.MH_DEPTH: The value is the depth of the physical structure expressed in decimal feet.JUNCTION_SUBTYPE: The value is the type of physical structure. Values:     • 1 - Maintenance.     • 4 - Offset.     • 15 - Valve Vault.     • 6 - Diversion Structure.     • 8 - Flush.     • 9 - Junction Chamber.     • 5 - Trap.     • 7 - Special Shallow.     • 3 - Terminal.     • 10 - Siphon.     • 13 - Junction Structure.     • 16 - Transition.     • 2 - Drop or Drop Trap.     • 11 - Weir.     • 12 - Special Structure.     • 14 - Other Structure.LAST_UPDATE: Date of last update of the point feature.YEAR_INST: This is the year of the structure installation.ROUTE: The value is the sewer maintenance route number.ADDRESS: This field is currently not being edited.ENABLED: Internal feature number.STRUCTURE_ID: The value is the ID of the structure. It could be either the value from the UP_STRUCT or DN_STRUCT fields. This point is the structure that may be a maintenance hole, junction, siphon, etc. The field STRUCTURE_ID is a key attribute to relate the physical structures feature class to the UP_MH field or the DN_MH field in pipe lines feature class.ASSETID: User-defined unique feature number that is automatically generated.

Dataset Attributes

  • OBJECTID
    Number
  • Shape
    Number
  • Enabled
    Number
    {"value"=>"True", "count"=>156591, "code"=>1} ()
  • ASSETID
    Number
    1 to 1853720
  • SERVICEID
    Text
    {"value"=>" ", "count"=>1} ()
  • BASIN
    Text
    {"value"=>"E15", "count"=>3450} (), {"value"=>"Z18", "count"=>3037} (), {"value"=>"W01", "count"=>2939} (), {"value"=>"C08", "count"=>2493} (), {"value"=>"W18", "count"=>2474} (), {"value"=>"E20", "count"=>2471} (), {"value"=>"N07", "count"=>1957} (), {"value"=>"W10", "count"=>1949} (), {"value"=>" ", "count"=>1901} (), {"value"=>"P01", "count"=>1673} ()
  • OWNER
    Text
    {"value"=>"PVT", "count"=>1} (), {"value"=>"CTY", "count"=>1} (), {"value"=>" ", "count"=>1} ()
  • STATUS
    Text
    {"value"=>"ACT", "count"=>4} (), {"value"=>"ABAN", "count"=>1} (), {"value"=>" ", "count"=>1} ()
  • STRUCTURE_ID
    Number
    0 to 62516153
  • JUNCTION_SUBTYPE
    Number
    0 to 16
  • LID_ELEV
    Number
    -99 to 1961992.2
  • VDATUM
    Text
    {"value"=>" ", "count"=>1} ()
  • MHMATERIAL
    Text
    {"value"=>"UNK", "count"=>105103} (), {"value"=>"PRC", "count"=>38893} (), {"value"=>"C", "count"=>4405} (), {"value"=>"B", "count"=>2544} (), {"value"=>"BRK", "count"=>976} (), {"value"=>"CSP", "count"=>608} (), {"value"=>"P", "count"=>377} (), {"value"=>"O", "count"=>22} (), {"value"=>"CE", "count"=>5} (), {"value"=>"VCP", "count"=>4} ()
  • YEAR_INST
    Text
    {"value"=>" ", "count"=>55221} (), {"value"=>"0000", "count"=>19877} (), {"value"=>"-99", "count"=>4038} (), {"value"=>"1927", "count"=>2245} (), {"value"=>"1925", "count"=>2137} (), {"value"=>"1926", "count"=>2108} (), {"value"=>"1928", "count"=>2032} (), {"value"=>"1961", "count"=>1978} (), {"value"=>"1930", "count"=>1770} (), {"value"=>"1956", "count"=>1743} ()
  • MH_TYPE
    Text
    {"value"=>"MH", "count"=>126452} (), {"value"=>"HX", "count"=>7446} (), {"value"=>"TM", "count"=>4960} (), {"value"=>"ABN", "count"=>3418} (), {"value"=>"JC", "count"=>3033} (), {"value"=>"DMH", "count"=>2202} (), {"value"=>"LH", "count"=>2054} (), {"value"=>"HD", "count"=>1974} (), {"value"=>"TCS", "count"=>1242} (), {"value"=>"CN", "count"=>1001} ()
  • MH_BASE
    Text
    {"value"=>"B", "count"=>64215} (), {"value"=>"Q", "count"=>27802} (), {"value"=>"F", "count"=>24182} (), {"value"=>"G", "count"=>3881} (), {"value"=>"H", "count"=>3202} (), {"value"=>"D", "count"=>1} ()
  • MH_DEPTH
    Text
    {"value"=>"0.0", "count"=>7525} (), {"value"=>"0", "count"=>4572} (), {"value"=>"0.00", "count"=>4267} (), {"value"=>" ", "count"=>2628} (), {"value"=>"7.0", "count"=>2109} (), {"value"=>"6.9", "count"=>1884} (), {"value"=>"6.8", "count"=>1881} (), {"value"=>"7.1", "count"=>1740} (), {"value"=>"6.6", "count"=>1703} (), {"value"=>"7.3", "count"=>1647} ()
  • COVERDIAM
    Number
    0 to 0
  • BARRELDIAM
    Number
    0 to 0
  • STREET1
    Text
    {"value"=>" ", "count"=>839} (), {"value"=>"FIGUEROA ST", "count"=>691} (), {"value"=>"VANOWEN ST", "count"=>556} (), {"value"=>"SEPULVEDA BLVD", "count"=>504} (), {"value"=>"VERMONT AVE", "count"=>372} (), {"value"=>"PACIFIC COAST HWY", "count"=>358} (), {"value"=>"SUNSET BLVD", "count"=>349} (), {"value"=>"SAN FERNANDO RD", "count"=>323} (), {"value"=>"8TH ST", "count"=>316} (), {"value"=>"SATICOY ST", "count"=>307} ()
  • STREET2
    Text
    {"value"=>" ", "count"=>50697} (), {"value"=>"EASEMENT", "count"=>1664} (), {"value"=>"ALLEY", "count"=>1571} (), {"value"=>"N/O PICO BLVD", "count"=>218} (), {"value"=>"N/O SUNSET BLVD", "count"=>218} (), {"value"=>"E/O BROADWAY", "count"=>193} (), {"value"=>"FIGUEROA ST", "count"=>159} (), {"value"=>"N/O OLYMPIC BLVD", "count"=>146} (), {"value"=>"E/O VERMONT AVE", "count"=>143} (), {"value"=>"3RD ST", "count"=>134} ()
  • BLKNO
    Text
    {"value"=>" ", "count"=>12268} (), {"value"=>"7000", "count"=>3108} (), {"value"=>"5000", "count"=>2811} (), {"value"=>"6000", "count"=>2726} (), {"value"=>"300", "count"=>2322} (), {"value"=>"600", "count"=>2321} (), {"value"=>"4000", "count"=>2305} (), {"value"=>"700", "count"=>2299} (), {"value"=>"1000", "count"=>2262} (), {"value"=>"200", "count"=>2241} ()
  • COMMENTS
    Text
    {"value"=>" ", "count"=>104070} (), {"value"=>"DATABASE REVIEW", "count"=>4427} (), {"value"=>"STUB MANHOLE", "count"=>246} (), {"value"=>"ON LAX PROPERTY", "count"=>181} (), {"value"=>"FAKE MANHOLE", "count"=>163} (), {"value"=>"8\" STUB", "count"=>120} (), {"value"=>"NEW TRAP PER B-4657 01/27/14", "count"=>102} (), {"value"=>"INSTALL TRAP MH PER B-4658 (02/2011)", "count"=>99} (), {"value"=>" - Abandoned to active -", "count"=>81} (), {"value"=>"STUB @ MH PER B-4535", "count"=>64} ()
  • MDIST
    Text
    {"value"=>"373", "count"=>29184} (), {"value"=>"372", "count"=>26865} (), {"value"=>" ", "count"=>22663} (), {"value"=>"374", "count"=>21204} (), {"value"=>"376", "count"=>13724} (), {"value"=>"371", "count"=>10490} (), {"value"=>"375", "count"=>10186} (), {"value"=>"378", "count"=>9611} (), {"value"=>"388", "count"=>6122} ()
  • ROUTE
    Text
    {"value"=>" ", "count"=>46667} (), {"value"=>"8", "count"=>2788} (), {"value"=>"14", "count"=>1966} (), {"value"=>"4", "count"=>1909} (), {"value"=>"9", "count"=>1856} (), {"value"=>"15", "count"=>1823} (), {"value"=>"18", "count"=>1811} (), {"value"=>"16", "count"=>1659} (), {"value"=>"5", "count"=>1588} (), {"value"=>"7", "count"=>1571} ()
  • SEQ
    Text
    {"value"=>" ", "count"=>46610} (), {"value"=>"0027", "count"=>470} (), {"value"=>"0042", "count"=>467} (), {"value"=>"0047", "count"=>466} (), {"value"=>"0046", "count"=>466} (), {"value"=>"0038", "count"=>465} (), {"value"=>"0043", "count"=>464} (), {"value"=>"0029", "count"=>464} (), {"value"=>"0035", "count"=>464} (), {"value"=>"0032", "count"=>463} ()
  • ENG_DIST
    Text
    {"value"=>"V", "count"=>63020} (), {"value"=>"C", "count"=>54283} (), {"value"=>"W", "count"=>27960} (), {"value"=>"H", "count"=>10976} (), {"value"=>"O", "count"=>477} (), {"value"=>" ", "count"=>6} ()
  • CNCL_DIST
    Number
    0 to 15
  • FACILITY_NO
    Number
  • NAME
    Text
    {"value"=>"MCDONNELL DOUGLAS HELICOPTER CO", "count"=>1} ()
  • ADDRESS
    Text
    {"value"=>"ADDED PER B-4724", "count"=>2} (), {"value"=>"REMOVE LH & INSTALL NEW MH PER B-4692", "count"=>1} (), {"value"=>"REMOVE LH & INSTALL NEW MH PER B-4675", "count"=>1} (), {"value"=>"REMOVE FT & REMODEL MH BASE PER B-4696", "count"=>1} (), {"value"=>"REMOVE FT & REMODEL MH BASE PER B-4672", "count"=>1} (), {"value"=>"CONSTRUCTED PER D-15061 (04/1959)", "count"=>1} (), {"value"=>"REMODEL MH BASE PER B-4700", "count"=>1} (), {"value"=>"5000 DENSMORE AVE", "count"=>1} (), {"value"=>"VALVE ACCESS VAULT", "count"=>1} (), {"value"=>"REPLACE DC & REMODEL MH BASE PER B-4672", "count"=>1} ()
  • CRTN_DT
    Date
    -2209161600000 to 1506470400000
  • LAST_UPDATE
    Date
    761529600000 to 1508716800000
  • USER_ID
    Text
    {"value"=>"PLNGUYEN", "count"=>30688} (), {"value"=>"RZGARCIA", "count"=>8284} (), {"value"=>"NWEIKEL", "count"=>5719} (), {"value"=>"SCHIT", "count"=>5599} (), {"value"=>"EGEORGES", "count"=>3097} (), {"value"=>"AHILARIO", "count"=>380} (), {"value"=>"GJOHNSON", "count"=>203} (), {"value"=>"THERNAND", "count"=>202} (), {"value"=>"SMORGAN", "count"=>174} (), {"value"=>"VMURILLO", "count"=>169} ()
  • LON
    Number
    -118.6676721 to 6474577.65833333
  • LAT
    Number
    33.70557949 to 1941186.78333333
  • LAYER
    Number
    5 to 11
  • NLA_URL
    Text
  • MH_DESCRIPTION
    Text
    {"value"=>"Maintenance Hole", "count"=>114713} (), {"value"=>"Terminal Maintenance Structure", "count"=>12722} (), {"value"=>"Stub", "count"=>7325} (), {"value"=>"Abandoned", "count"=>5326} (), {"value"=>"Drop Maintenance Hole", "count"=>2172} (), {"value"=>"Junction Structure", "count"=>2043} (), {"value"=>"Flush", "count"=>2039} (), {"value"=>"Lamp Hole", "count"=>1977} (), {"value"=>"Transition Non-Structure", "count"=>1852} (), {"value"=>"Junction Chamber", "count"=>1338} ()
  • TOOLTIP
    Text
  • MHMATERIAL_DESC
    Text
    {"value"=>"Unknown", "count"=>104934} (), {"value"=>"Precast Concrete", "count"=>38893} (), {"value"=>"C", "count"=>4405} (), {"value"=>"B", "count"=>2544} (), {"value"=>"Brick", "count"=>976} (), {"value"=>"CSP", "count"=>608} (), {"value"=>"P", "count"=>377} (), {"value"=>" ", "count"=>171} (), {"value"=>"O", "count"=>22} (), {"value"=>"CE", "count"=>5} ()
  • JUNCTION_SUBTYPE_DESC
    Text
  • ENG_DIST_DESC
    Text
    {"value"=>"Valley", "count"=>63020} (), {"value"=>"Central", "count"=>54283} (), {"value"=>"West Los Angeles", "count"=>27960} (), {"value"=>"Harbor", "count"=>10976} (), {"value"=>"Outside City Limits", "count"=>483} ()

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