Wye Connectors

This connector wye feature class represents current wastewater information in the City of Los Angeles. The connector wye is the location of a chimney. 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.For a complete list of attribute values, please refer to (TBA Wastewater data dictionary). Wastewater Connector Wye points layer was created in geographical information systems (GIS) software to display the location of wastewater connection points at the wye pipe lines. The connector wye layer is a feature class in the LACityWastewaterData.gdb Geodatabase dataset. The layer consists of spatial data as a point feature class and attribute data for the features. The connector wye points are entered when the wye pipe lines are edited based on wastewater sewer maps and BOE standard plans, and information about the points is entered into attributes. The connector wye is a structure connected to the wye pipe line. Reference the WYE_SUBTYPE field for the type of structure. The WYE_ID field value is the unique ID. The WYE_ID field relates to the Sewer Permit tables. The wastewater connector wye points are inherited from sewer spatial data originally created by the City's Wastewater program. The database was known as SIMMS, Sewer Inventory and Maintenance Management System. Wye pipe information should only be added to the Wastewater wye pipes 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, F 400 Sewer Materials and Structures section, and a copy can be viewed at [http://eng.lacity.org/techdocs/sewer-ma/f400.pdf]. List of Fields: REHAB: This attribute indicates if the pipe has been rehabilitated. BOTTOM: When a chimney is present, this is the depth at the bottom of the chimney. TOP_: When a chimney is present, this is the depth at the top of the chimney. PL_DEPTH: This value is the depth of the service connection at the property line. TYPE: This is the old wye status and is no longer referenced. SHAPE: Feature geometry. LAST_UPDATE: Date of last update of the point feature. USER_ID: The name of the user carrying out the edits of the wye data. SPECIAL_STRUCT: This describes the special structure. The design of the special structure doesn't follow the BOE Standard Plans. PIPE_ID: The value is a combination of the values in the UP_STRUCT, DN_STRUCT, and PIPE_LABEL fields. This is the 17 digit identifier of each pipe segment and is a key attribute of the pipe line data layer. This field named PIPE_ID relates to the field in the Annotation Pipe and to the field named PIPE_ID in the Pipe line feature class data layers. WYE_NO: This value is the number of the line segment for the wye structure located along the pipe segment. This is a 2 digit value. The number starts at 1 for the first wye connected to a pipe. The numbers increase sequentially with each wye being unique. C_HUNDS: This value is the hundreds portion of the stationing at the curb line. DEPTH: This value is the depth of the Wye from the surface in feet. STAT_TENS: This value is the tens portion of the stationing. WYE_SUBTYPE: This value is the type of sewer connection. Values: • 1 - Vertical tee. • 7 - . • 3 - Offset Chimney. • 4 - . • 2 - Chimney. ENABLED: Internal feature number. PL_TENS: This value is the tens portion of the stationing at the property line. SIDE: The side of the pipe looking up stream to which structure attaches. Values: • R - Right. • L - Left. • C - Centered. • U - Unknown. ENG_DIST: LA City Engineering District. The boundaries are displayed in the Engineering Districts index map. Values: • H - Harbor Engineering District. • C - Central Engineering District. • V - Valley Engineering District. • W - West LA Engineering District. STATUS: This value is the active or inactive status of the connector wye. Values: • INACT - Inactive. • ABAN - Abandoned. • ACT - Active. • PROP_ACT - Proposed Active. • ABAN - Proposed Inactive. BASIN: This attribute is the basin number. OBJECTID: Internal feature number. C_TENS: This value is the tens portion of the stationing at the curb line. STAT_HUND: This value is the hundreds portion of the stationing. SERVICEID: User-defined unique feature number that is automatically generated. CRTN_DT: Creation date of the point feature. WYE_ID: The value is a combination of PIPE_ID and WYE_NO fields, forming a unique number. This 19 digit value is a key attribute of the wye lines data layer. This field relates to the Permit tables. PL_HUNDS: This value is the hundreds portion of the stationing at the property line. REMARKS: This attribute contains additional comments regarding the wye line segment, such as a line through in all caps when lined out on wye maps. ASSETID: User-defined unique feature number that is automatically generated. C_DEPTH: This value is the depth of the service connection at the curb line.