Utility Services

CAD Submittal Standards

The purpose of Computer Aided Drawing (CAD) Submittal Standards is to depict water, sewer and reclaim infrastructure data in an electronic format that can be used directly with CAD and GIS software. Providing a CAD file to consultants will reduce or eliminate their need to convert information from PDF maps to CAD data. Requiring a CAD file from consultants will reduce or eliminate the City’s need to convert information from PDF sheets to GIS data. 

The Department of Utility Services will provide to consultants upon request a CAD file containing existing water, sewer and reclaim data which follow the standards that will be required in return. The CAD Submittal Standards outlined below apply only to water, sewer and reclaim asset data applicable to the City of Henderson Department of Utility Services.

CAD files submitted to the City must adhere to the following standards:

  1. AutoCAD DWG file format with an accompanying text file listing and describing the files being submitted.

     

  2. DWG file must match the information represented in the mylars at the time of submittal.

     

  3. DWG file must be defined in the NAD83 State Plane Nevada East Survey Feet (FIPS 2701; WKID 3421; EPSG 3421) coordinate system.
    1.  coordinate_system_library

  4. DWG file must contain data specific to water, sewer and reclaim utilities only and be named with an underscore UT (i.e. PROJECTNAME_UT).
  5. The CAD data must be stored using simple points, polylines and closed polylines.
  6. Each drawing layer in the CAD file may only store a single data type. For example, if a layer is created to store proposed water valves, only simple points representing water valves may be stored in that layer. Extraneous information such as text blocks, annotation, leader lines, etc. may not be stored in the data layer.
  7. CAD data stored in the CAD layers must be contiguous and coincident where appropriate. For example, a sewer main pipe will be drawn using a polyline that extends to and whose endpoint is coincident with the end of the adjoining sewer main pipe.The coincident endpoints will also be coincident with the point representing the center of the sewer manhole located between the two sewer main pipes.
  8. CAD layers must adhere to the following naming convention.
    1. A prefix of “EX_", "PR_", or "DM_” will indicate whether the layer will store Existing, Proposed, or Demolition utility data.
    2. A “W_” “R_” or “S_” will indicate whether the layer will store data associated with the water system, reclaim water system, or sewer system respectively.
    3. The layer name will follow to indicate what type of data is stored in the layer, for example, MAIN for main pipes or LATERAL for lateral pipes.For example, PR_S_MAIN will be the layer storing polylines representing proposed sewer mains. The layer types are as follows:

       

    Prefix

    System

    Name

    Feature Type

    Description

    EX_, PR_, DM_

    W_, R_, S_

    MAIN

    Polyline

    Represents main pipe centerline. Drawn with straight polyline consisting of two end points. End points will be coincident with points representing a system valve, hydrant, meter, CCCD, pump assembly, reservoir, lift station, network structure, or fitting of all types except wye and true wye.

    EX_, PR_, DM_

    W_, R_, S_

    LATERAL

    Polyline

    Represents lateral pipe centerline. Drawn with straight polyline consisting of two end points. End points will be coincident with points representing a system valve, hydrant, meter, CCCD, network structure, cleanout, or fitting of all types.

    EX_, PR_, DM_

    W_, R_, S_

    CASING

    Polyline

    Represents extents of pipe encasement, typically drawn as a rectangular, closed polyline overlapping with a MAIN or LATERAL pipe.

    EX_, PR_, DM_

    W_, R_, S_

    EASEMENT

    Polyline

    Represents extents of easement drawn as a closed polyline.

    EX_, PR_, DM_

    W_, R_, S_

    SYSTEM_VALVE

    Point

    Represents horizontal center of valve operating nut

    EX_, PR_, DM_

    W_, R_

    HYDRANT

    Point

    Represents horizontal center of hydrant assembly

    EX_, PR_, DM_

    W_, R_, S_

    VAULT

    Closed Polyline

    Represents vault horizontal extents

    EX_, PR_, DM_

    S_

    MANHOLE

    Point

    Represents horizontal center of manhole (not lid)

    EX_, PR_, DM_

    W_, R_, S_

    FITTING

    Point

    Represents horizontal center of fitting (types below)

  9. CAD entities must include attribution that is digitally transferable. One of four options is recommended:
    1. Include CAD Object Data attached to each CAD entity with fields and values following the layer attribute table below. For an example, please see the CAD template of existing utility data provided by COH DUS.
    2. Include CAD Extended Data attached to each CAD entity with fields and values following the layer attribute table below.
    3. Include a comma separated value (CSV) file with fields and values following the layer attribute table below and a unique identifier linking individual rows in the CSV file to individual entities in the CAD layer.
    4. Use the free ArcGIS for AutoCAD downloadable plug-in application for AutoCAD to enter values following the format provided by COH DUS.Note: this option requires a DWG seed file created for use with this application.

     

    Layer (Entity) attribute details:

    Attribute

    Applies To

    Acceptable Values (include) – Description (do not include)

    PIPE_FUNCTION

    MAIN, LATERAL

    Distribution, Transmission

    MATERIAL

    (Water & Reclaim)

    W_MAIN, W_LATERAL, R_MAIN, R_LATERAL

    AC - Asbestos Cement Pipe

    BRASS - Brass

    C-900 - PVC (Polyvinyl Chloride Pressure Pipe C-900)

    C-905 - PVC (Polyvinyl Chloride Pressure Pipe C-905)

    CI - Cast Iron

    CMLC - Concrete-Mortar Lined and Coated

    COP - Copper Pipe

    COPTKPEC – Copper Type K PE Coated

    COPTKPES – Copper Type K PE Sleeved

    DI150 - Ductile Iron Pipe Pressure Class 150

    DI200 - Ductile Iron Pipe Pressure Class 200

    DI250 - Ductile Iron Pipe Pressure Class 250

    DI300 - Ductile Iron Pipe Pressure Class 300

    DI350 - Ductile Iron Pipe Pressure Class 350

    DI50 - Ductile Iron Pipe Pressure Class 50

    ELC - Epoxy-Lined Coated Pipe (Steel)

    HDPE - High Density Polyethylene

    MLCP - Mortar Lined Coated Pipe (Steel)

    MLTCP - Mortar Lined and Tape Wrapped and Coated Pipe (Steel)

    PE - Polyethylene

    RCCP - Reinforced Concrete Cylinder Pipe (Steel)

    RCP - Reinforced Concrete Pipe (Steel)

    SS - Stainless Steel

    STL40 - Steel Pipe Schedule 40

    WSP - Welded Steel Pipe

    MATERIAL

    (Sewer)

    S_MAIN, S_LATERAL, VAULT

    C-900 - PVC (Polyvinyl Chloride Pressure Pipe C-900)

    C-905 - PVC (Polyvinyl Chloride Pressure Pipe C-905)

    CCP - Concrete Cylinder Pipe (Steel)

    CI - Cast Iron

    CMLC - Concrete-Mortar Lined and Coated

    CPE - Corrugated Polyethylene

    DI250 - Ductile Iron Pipe Pressure Class 250

    FRP - Fiberglass Reinforced Polymer (HOBAS)

    HDPE - High Density Polyethylene

    MLCP - Mortar Lined Coated Pipe (Steel)

    PE - Polyethylene

    RCP - Reinforced Concrete Pipe (Steel)

    CIPP - Cured In Place Pipe

    AC - Asbestos Cement Pipe

    PVC80 - Polyvinyl Chloride Schedule 80

    PVC35 - Polyvinyl Chloride Schedule 35

    DIAMETER

    MAIN, LATERAL, SYSTEM_VALVE, METER

    0, 0.75, 1, 1.25, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 33, 36, 40, 42, 44, 48, 54, 56, 60, 64, 66, 72, 76, 78, 84, 90, 96, 102, 108, 109, 120, 138, 144, 149, 156, 180

    CASING_TYPE

    MAIN, LATERAL

    STEEL, CONCRETE

    EASEMENT_TYPE

    EASEMENT

    E - MUNICIPAL UTILITY EASEMENT

    D - DEED

    G - BLM GRANT

    C - BOR CONTRACT

    LATERAL_TYPE

    LATERAL

    HYDRANT, RESIDENTIAL, COMMERCIAL, IRRIGATION, AIR VAC, BLOW OFF

    MAIN_TYPE

    S_MAIN

    GRAVITY, FORCE

    OUT_OF_ZONE

    W_MAIN

    YES, NO

    PRESSURE_ZONE

    W_MAIN, HYDRANT, SYSTEM_VALVE

    1640 - 3540

    DIST_TYPE

    HYDRANT, MANHOLE, SYSTEM_VALVE

    POTABLE WATER, RAW WATER, SEWER, RECLAIMED WATER, EFFLUENT WATER (TREATED), LAKE WATER, PROCESS, GROUNDWATER

    MH_TYPE

    MANHOLE

    STANDARD, TERMINAL, DROP, FLOW DIVERSION STRUCTURE

    OUT_INV_ELEV

    MANHOLE

    Out Invert Elevation Integer Number in Feet

    TMH_ELEV

    MANHOLE

    Top of Manhole Elevation Integer Number in Feet

    VALVE_TYPE

    SYSTEM_VALVE

    SLEEVE, CONE, DIAPHRAGM, GLOBE, GATE, TAPPING, SOLENOID, BACKPRESSURE, BUTTERFLY, PINCH, REGULATING, CHECK, BLOWOFF, PLUG, NEEDLE, COMBINATION AIR RELIEF VACUUM, RELIEF, CORPORATION STOP, ANGLE STOP, BALL, SAFETY RELIEF, FLOAT, GATE SLUICE, GATE KNIFE, GATE SLIDE, GATE WEIR, GATE FLAP, CHECK BALL, CHECK SWING, CHECK FOOT, CHECK SILENT, CHECK GLOBE, CHECK DIAPHRAGM, CHECK DUCKBILL

    VALVE_POSITION

    SYSTEM_VALVE

    OPEN, CLOSED, CLOSED ZONE BOUNDARY

    SOGITYPE

    S_SOGI

    SAND-OIL, GREASE

    DEVICE_TYPE

    CCCD

    DCDA – Double Check Detector Assembly

    RPDA – Reduced Pressure Detector Assembly

    RPDAII – RPDA Type II

    RPPA – Reduced Pressure Principal Assembly

    PVB – Pressure Vacuum Breaker

    DC – Double Check

    CV – Check Valve

    FITTING_TYPE

    FITTING

    REDUCER, TEE, CROSS, PLUG, CAP, WYE, TRUE WYE, ELBOW, VERTICAL ELBOW, COUPLING, HALF COUPLING, FALNGED COUPLING ADAPTER, REDUCING ELBOW, WALL SPOOL, VENT

    BEND_ANGLE

    FITTING

    11.25, 11.5, 22.5, 45.0, 90.0