NHDPoint FEATURE CLASSES - Amazon Web Services · 2020. 4. 8. · The Catalog View FCode (Feature)...
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August 1, 2016 The Catalog View FCode (Feature) Domains Coded value domain Coded value domain NHD Geodatabase Coded value domain Coded value domain Object table Relationship Area of Complex Channels FCode Gate FCode Playa FCode Spillway FCode Description Description Description Description Feature dataset EXTERNALCROSSWALK NHDMetadataHasSourceCitation Field type Long integer Field type Long integer Field type Long integer Field type Long integer Model Changes Split policy Duplicate Split policy Duplicate Split policy Duplicate Split policy Duplicate Hydrography Object table Merge policy Default value Merge policy Default value Relationship ComID field deleted from all feature classes/tables Merge policy Default value Merge policy Default value Code Description Code Description HYDRO_NET_BUILDERR Geometric network NHDMetaToFeature DuuID field deleted from metadata tables Code Description Code Description 36100 Playa 45500 Spillway 53700 Area of Complex Channels 36900 Gate Relationship HYDRO_NET Relationship All other changes indicated as follows: Simple feature class Geometry Point Contains points representing Coded value domain NHDAreaEventFCToMeta Point feature class NHDPointEventFCToMeta New element Update Deletion Coded value domain SpringSeep FCode Contains Z values Yes NHDPoint Contains M values No NHD hydrographic landmark features. Area to be Submerged FCode Coded value domain Description Relationship HYDRO_NET_Junctions Relationship Allow Prec- Description Coded value domain Rapids FCode Field type Long integer NHDPointToMeta Field name Data type nulls Default value Domain ision Scale Length Field type Long integer Ice Mass FCode Split policy Duplicate Polygon feature class NHDAreaToMeta FEATURE CLASSES Description Split policy Duplicate Merge policy Default value OBJECTID Object ID Description Field type Long integer Merge policy Default value NHDArea Object table Shape Field type Long integer Split policy Duplicate Code Description Code Description Split policy Duplicate Merge policy Default value 45800 Spring/Seep Object table Geometry Yes Permanent_Identifier String No 40 40-char GUID value that uniquely identifies the occurrence of each feature in The National Map. Polygon feature class NHDProcessingParamaters 30700 Area to be Submerged Merge policy Default value NHDFCode Code Description FDate Date No 0 0 8 Date of last feature modification. Code Description 43100 Rapids NHDAreaEventFC Resolution Long integer No Resolution 0 Object table Code for source resolution: 1=Local resolution, 2=High resolution, 3=Medium resolution. 37800 Ice Mass Object table Coded value domain 10 Unique identifier assigned by GNIS, length 10. Coded value domain GNIS_ID String Yes StreamRiver FCode Line feature class NHDReachCodeMaintenance NHDFeatureToMetadata 65 Proper name, specific term, or expression by which a particular geographic entity is known. ArtificialPath FCode Unique identifier composed of two parts. The first eight digits are the subbasin code defines by FIPS 103, GNIS_Name String Yes Description 14 Description ReachCode String Yes NHDFlowline Field type Long integer next six digits is a randomly assigned sequential number unique within a Cataloging Unit, length 14. Object table Geometry Polygon Field type Long integer Coded value domain Object table Split policy Duplicate FType Long integer No 458 0 Three-digit integer value, unique identifier of a feature type. Simple feature class Contains M values No Contains regions representing areal Split policy Duplicate Line feature class Reef FCode Merge policy Default value Coded value domain FCode Long integer Yes 45800 0 NHDReachCrossReference Five-digit integer value comprised of the feature type and combinations of characteristics and values. NHDFlow NHDArea Contains Z values Yes NHD hydrographic waterbody features. Merge policy Default value Description Code Description GLOBALID Global ID Inundation Area FCode Code Description NHDLine Field type Long integer 46000 Stream/River Description Relationship Object table Allow Prec- 55800 Artificial Path Split policy Duplicate Field type Long integer 46003 Stream/River: Hydrographic Category = Intermittent Field name Data type nulls Default value Domain ision Scale Length Line feature class Merge policy Default value NHDFlowlineToMeta NHDSourceCitation Split policy Duplicate 46006 Stream/River: Hydrographic Category = Perennial Code Description Subtypes of NHDPoint OBJECTID Object ID Merge policy Default value NHDLineEventFC 46007 Stream/River: Hydrographic Category = Ephemeral Coded value domain 43400 Reef Shape Geometry Yes Object table Object table Description Subtype field FType Permanent_Identifier String No Point feature class 40 40-char GUID value that uniquely identifies the occurrence of each feature in The National Map. BayInlet FCode Code 40300 Inundation Area Default subtype 458 List of defined default values and domains for subtypes in this class NHDFlowlineVAA NHDStatus Description 40308 Inundation Area; Inundation Control Status = Controlled FDate Date No 0 0 8 Date of last feature modification. Subtype Subtype Field type Long integer Coded value domain NHDPoint Relationship Code for source resolution: 1 = Local resolution, 2 = High resolution, 3 = Medium resolution. 40309 Inundation Area; Inundation Control Status = Controlled; Stage = Flood Elevation Resolution Long integer No Resolution 0 Code Description Field name Default value Domain Definitions of features Split policy Duplicate Object table Submerged Stream FCode GNIS_ID String Yes 10 Unique identifier assigned by GNIS, length 10. Merge policy Default value 40307 Inundation Area; Inundation Control Status = Not Controlled Resolution Resolution Point feature class NHDLineEventFCToMeta Coded value domain Description 343 DamWeir Barrier constructed to control the flow, or raise the level, of water. 65 Proper name, specific term, or expression by which a particular geographic entity is known, length 65. Code Description NHDVerticalRelationship GNIS_Name String Yes FCode 34305 DamWeir FCode Reservoir FCode Field type Long integer NHDPointEventFC AreaSqKm Double Yes 0 0 Relationship Split policy Duplicate Area of areal features, Albers Equal Area Conic, length 8. 31200 Bay/Inlet Resolution Resolution Description 367 Gaging Station Relationship Structure used to measure the characteristics of a hydrographic feature. Elevation Double Yes ElevationRange 0 0 Elevation, in meters, of water surfaces where water pools are encoded for a few features. Field type Long integer Merge policy Default value FCode 36700 Gaging Station FCode Polygon feature class NHDLineToMeta Split policy Duplicate Code Description FType Long integer No 460 0 Three-digit integer value, unique identifier of a feature type. Resolution Resolution NHDWaterbodyToMeta Coded value domain Coded value domain 369 Gate Merge policy Default value 46100 Submerged Stream FCode 36900 Gate FCode Structure that may be swung, drawn, or lowered, to block an entrance or passageway. FCode Long integer Yes 46006 0 NHDWaterbody Five-digit integer value comprised of the feature type and combinations of characteristics and values. Object table Bridge FCode LakePond FCode Code Description VisibilityFilter Long integer No 0 VisibilityFilter Domain 0 Represents the appropriate use of individual features through scale. Does not reflect capture conditions. Resolution Resolution Description Description 43600 Reservoir 398 Lock Chamber Enclosure on a waterway used to raise or lower the vessels as they pass from one level to another. Shape_Area Double Yes 0 0 NHDMetadata FCode 39800 Lock Chamber FCode Field type Long integer Field type Long integer 43618 Reservoir: Construction Material = Earthen Split policy Duplicate Split policy Duplicate Resolution Resolution GLOBALID Global ID 43619 Reservoir: Construction Material = Nonearthen Coded value domain 431 Rapids Merge policy Default value Merge policy Default value Code Description Code Description 43601 Reservoir: Reservoir Type = Aquaculture SwampMarsh FCode FCode 43100 Rapids FCode Area of swift current in a stream or river characterized by standing waves, boulders, or rocks. Resolution Resolution 31800 Bridge 39000 Lake/Pond 43609 Reservoir: Reservoir Type = Cooling Pond Description 436 Reservoir Constructed basin formed to contain water or other liquids. FCode 43600 Reservoir FCode Field type Long integer 39001 Lake/Pond: Hydrographic Category = Intermittent 43603 Reservoir: Reservoir Type = Decorative Pool Subtypes of NHDArea Split policy Duplicate 441 Rock Resolution Resolution 39006 Lake/Pond: Hydrographic Category = Intermittent; Stage = Date of Photography 43606 Reservoir: Reservoir Type = Disposal Subtype field FType Merge policy Default value Concreted mass of stony material. Default subtype 460 List of defined default values and domains for subtypes in this class Coded value domain 39005 Lake/Pond: Hydrographic Category = Intermittent; Stage = High Water Elevation 43625 Reservoir: Reservoir Type = Disposal; Construction Material = Earthen FCode 44101 Rock FCode Code Description Resolution Resolution CanalDitch FCode 39004 Lake/Pond: Hydrographic Category = Perennial 43626 Reservoir: Reservoir Type = Disposal; Construction Material = Nonearthen 450 SinkRise 46600 Swamp/Marsh Subtype Subtype Code Description Field name Default value Domain Definitions of features Description 39009 Lake/Pond: Hydrographic Category = Perennial; Stage = Average Water Elev 43607 Reservoir: Reservoir Type = Evaporator FCode 45000 SinkRise FCode Place at which a stream disappears underground, or reappears at the surface in a karst area. 46601 Swamp/Marsh: Hydrographic Category: Intermittent Resolution Resolution Field type Long integer 39011 Lake/Pond: Hydrographic Category = Perennial; Stage = Date of Photography 43623 Reservoir: Reservoir Type = Evaporator; Construction Material = Earthen 458 SpringSeep 46602 Swamp/Marsh: Hydrographic Category: Perennial Resolution Resolution FCode 45800 SpringSeep FCode Place where water issues from the ground naturally. Attribute Tables Area where a stream or river flows in an intricate network of interlacing channels. Split policy Duplicate 39010 Lake/Pond: Hydrographic Category = Perennial; Stage = Normal Pool 43610 Reservoir: Reservoir Type = Filtration Pond 537 Area of Complex Channels Elevation ElevationRange Merge policy Default value Resolution Resolution 485 Water IntakeOutflow 39012 Lake/Pond: Hydrographic Category = Perennial; Stage = Spillway 43611 Reservoir: Reservoir Type = Settling Pond FCode 53700 Area of Complex Channels FCode Structure through which water enters or exits a conduit. FCode 48500 Water IntakeOutflow FCode Code Description 43612 Reservoir: Reservoir Type = Sewage Treatment Pond Resolution Resolution 33600 Canal Ditch Resolution Resolution Feature Detail Known extent of the intended lake that will be created behind a dam under construction. 43608 Reservoir: Reservoir Type = Swimming Pool Coded value domain 487 Waterfall 307 Area to be Submerged Elevation FCode 48700 Waterfall FCode Vertical or near vertical descent of water over a step or ledge in the bed of a river. ElevationRange 33601 Canal Ditch: Canal Ditch Type = Aqueduct 43605 Reservoir: Reservoir Type = Tailings Pond Tunnel FCode FCode 30700 Area to be Submerged FCode 33603 Canal Ditch: Canal Ditch Type = Stormwater Resolution Resolution Table 43604 Reservoir: Reservoir Type = Tailings Pond; Construction Material = Earthen Description 488 Well Pit or hole, dug or bored into the earth for the extraction of water or other fluids, or gasses. Resolution Resolution FCode 48800 Well FCode Water opening that is an opening into the sea/ocean into the land, or of an estuary, lake, or NHDFCode Field type Long integer Coded value domain 43624 Reservoir: Reservoir Type = Treatment 312 BayInlet Elevation ElevationRange river into its shore. Split policy Duplicate Allow Prec- Levee FCode 43617 Reservoir: Reservoir Type = Water Storage Merge policy Default value FCode 31200 BayInlet FCode Coded value domain Field name Data type nulls Default value Domain ision Scale Length Description 43614 Reservoir: Reservoir Type = Water Storage; Construction Material = Earthen; Hydro Cat = Intermittent Resolution Coastline FCode Resolution Code Description Field type Long integer OBJECTID Object ID 43615 Reservoir: Reservoir Type = Water Storage; Construction Material = Earthen; Hydro Cat = Perennial Description 47800 Tunnel 318 Bridge Elevation Five-digit integer value comprised of the feature type and the combinations ElevationRange Structure spanning and providing passage over a waterway, railroad, or other obstacle. Geometry Polyline Split policy Duplicate Simple feature class Contains M values No Contains routes representing linear FCode Long integer No 0 Field type Long integer 43613 Reservoir: Reservoir Type = Water Storage; Construction Material = Nonearthen of characteristics and values. FCode 31800 Bridge FCode Merge policy Default value Split policy Duplicate Description String No 255 NHDLine Contains Z values Yes NHD hydrographic landmark features. 43621 Reservoir: Reservoir Type = Water Storage; Hydrographic Category = Perennial Resolution Resolution Merge policy Default value Code Description 32 Function or purpose (Aqueduct or Unspecified). CanalDitchType String Yes Artificial open waterway constructed to transport water, to irrigate or drain land, 56800 Levee 336 CanalDitch Elevation ElevationRange Coded value domain Allow Prec- to connect two or more bodies of water, or to serve as a waterway for watercraft. Code Description Field name Data type nulls Default value Domain ision Scale Length 32 Predominant material used (Earthen, Nonearthen, or Unspecified. ConstructionMaterial String Yes FCode 33600 CanaDitch FCode 56600 Coastline Underground Conduit FCode 32 Portion of the year the feature contains water (Intermittent or Perennial). HydrographicCategory String Yes Resolution Resolution Description OBJECTID Object ID 343 DamWeir 32 Existence of functional control sturctures (Controlled or Not Controlled). InundationControlStatus String Yes Elevation Field type Long integer ElevationRange Barrier constructed to control the flow or raise the level of water. Coded value domain FCode 34305 DamWeir FCode Coded value domain Shape Geometry Yes OperationalStatus String Yes 32 State or condition (Abandoned or Operational). Split policy Duplicate PipelineType String Yes Rock FCode 32 Function or purpose (Aqueduct, General, Penstock, or Siphon). Merge policy Default value 40 40-char GUID value that uniquely identifies the occurrence of each feature in The National Map. Permanent_Identifier String No Resolution Connector FCode Coded value domain Resolution Description 32 The accuracy a feature can be confidently positioned (Approximate or Definite). PositionalAccuracy String Yes 0 0 8 Date of last feature modification. Code Description FDate Date No Description Lock Chamber FCode 362 Flume Elevation Field type Long integer ElevationRange Open, inclined, artificial channel constructed of wood, metal, or concrete; generally elevated. 32 Vertical location relative to the surface (Abovewater or Underwater). RelationshipToSurface String Yes 42000 Underground Conduit Field type Long integer Description Split policy Duplicate Code for source resolution: 1=Local resolution, 2=High resolution, 3=Medium resolution. Resolution Long integer No Resolution 0 FCode 36200 Flume FCode 32 Function or purpose (Aquaculture, Decorative Pool, Disposal, Evaporator, Swim Pool, Treatment, Unspecified, or Water Storage). ReservoirType String Yes Split policy Duplicate Field type Long integer Merge policy Default value 42001 Underground Conduit: Positional Accuracy = Definite 10 Unique identifier assigned by GNIS, length 10. GNIS_ID String Yes Resolution Resolution Merge policy Default value Split policy Duplicate Stage String Yes 32 Height of water surface is the basis for elevation. Code Description 42002 Underground Conduit: Positional Accuracy = Indefinite 65 Proper name, specific term, or expression by which a particular geographic entity is known. GNIS_Name String Yes 364 Foreshore Elevation ElevationRange Part of a seashore between high-water and low-water marks. Code Description Merge policy Default value LengthKm Double Yes 44100 Rock 42003 Underground Conduit: Positional Accuracy = Approx 0 0 Length of linear feature, Albers Equal Area Conic, length 8. FCode 36400 Foreshore FCode 33400 Connector Code Description 44101 Rock: Relationship to Surface = Abovewater FType Long integer No 411 0 Three-digit integer value, unique identifier of a feature type. 39800 Lock Chamber Resolution Resolution 44102 Rock: Relationship to Surface = Underwater FCode Long integer Yes 41100 0 Five-digit integer value comprised of the feature type and combinations of characteristics and values. 403 Inundation Area Elevation ElevationRange Area of land subject to flooding. Visibility Filter Long integer No 0 VisibilityFilter Domain 0 Coded value domain Represents the appropriate use of individual features through scale. Does not reflect capture conditions. FCode 40308 Inundation FCode Coded value domain GLOBALID Global ID Wall FCode DamWeir FCode Table Flow table values are derived from the topologic connectivity of the Resolution Resolution A natural or manmade embankment along the edge of a stream/river, canal/ditch, or Description Shape_Length Double Yes 0 0 Description 568 Levee Elevation ElevationRange NHDFlow geometric network and attribute values of NHDFlowline features. waterbody, that protects the surrounding land from flooding. Field type Long integer Field type Long integer Coded value domain FCode 56800 Levee FCode Split policy Duplicate Allow Prec- Split policy Duplicate Nonearthen Shore Subtypes of NHDLine Merge policy Default value Description Resolution Field name Data type nulls Default value Domain ision Scale Length Resolution Merge policy Default value Coded value domain OBJECTID Object ID Code Description Subtype field FType 398 Lock Chamber Elevation ElevationRange Enclosure on a waterway used to raise/lower vessels as they pass from one level to another. Code Description Field type Long integer SeaOcean FCode Default subtype 411 List of defined default values and domains for subtypes in this class 48300 Wall FCode 39800 Lock Chamber FCode 34300 Dam/Weir Split policy Duplicate DeltaLevel Long integer Yes 0 Description Direction Long integer Yes Difference in level from first reach to second reach. Resolution Resolution 34305 Dam/Weir: Construction Material = Earthen Merge policy Default value Field type Long integer Subtype Subtype FlowDirection 0 Integer code for the direction of flow. Code Description Field name Default value Domain Definitions of features 431 Rapids Elevation ElevationRange Area of swift current in a stream or river, characterized by standing waves or by boulders and rocks. 34306 Dam/Weir: Construction Material = Nonearthen Code Description Split policy Duplicate From_Permanent_Identifier String No 40 Permanent_Identifier from which feature flows. Merge policy Default value Coded value domain Resolution Resolution FCode 43100 Rapids FCode 41100 Nonearthen Shore To_Permanent_Identifier String No 40 Permanent_Identifier to which feature flows. 318 Bridge Structure spanning and providing passage over a waterway, railway, or other obstacle. Code Description Wash FCode FCode 31800 Bridge FCode Resolution Resolution 44500 Sea Ocean Description ElevationRange Great body of salt water that covers much of the earth. Resolution Resolution 445 SeaOcean Elevation Coded value domain 343 DamWeir Barrier constructed to control the flow, or raise the level, of water. Field type Long integer FCode 34305 DameWeir FCode FCode 44500 SeaOcean FCode Estuary FCode Split policy Duplicate Resolution Resolution Resolution Resolution Description Merge policy Default value 362 Flume Open inclined artificial channel constructed of wood, metal, or concrete; generally elevated. ElevationRange Constructed passage for surplus water to run over or around a dam. Field type Long integer FCode 36200 Flume FCode 455 Spillway Elevation Coded value domain Code Description Split policy Duplicate Resolution Resolution FCode 45500 Spillway FCode Pipeline FCode 48400 Wash Structure that may be swung, drawn, or lowered, to block an entrance or passageway. 369 Gate Merge policy Default value Coded value domain FCode 36900 Gate FCode Resolution Resolution Description Code Description ElevationRange Body of flowing water. Field type Long integer SinkRise FCode Resolution 460 StreamRiver Elevation Resolution A natural or manmade embankment along the edge of a stream/river, canal/ditch, or waterbody, that protects the 49300 Estuary 568 Levee Split policy Duplicate Description FCode 56800 Levee FCode surrounding land from flooding. FCode 46006 StreamRiver FCode Table NHDFlowline Value Added Attributes are entirely derived from Merge policy Default value Field type Long integer Coded value domain Resolution Resolution Resolution Resolution 398 Lock Chamber Enclosure on a waterway used to raise or lower vessels as they pass from one level to another. NHDFlowlineVAA the NHDFlowline features and the Flow table values. Split policy Duplicate Water IntakeOutflow FCode Code Description ElevationRange Old river course inundated by an impounded water body. FCode 39800 Lock Chamber FCode 461 Submerged Stream Elevation Merge policy Default value Description Coded value domain 42800 Pipeline Allow Prec- Resolution Resolution FCode 46100 Submerged Stream FCode Code Description Field type Long integer Field name Data type nulls Default value Domain ision Scale Length Flume FCode 42816 Pipeline: Pipeline Type = Aqueduct 411 Nonearthen Shore Structure built of stone, concrete, or other building material, that borders a body of water. FCode 41100 Nonearthen Shore FCode Resolution Resolution 45000 Sink/Rise Split policy Duplicate Usually dry portion of a stream bed that contains water only Description 42801 Pipeline: Pipeline Type = Aqueduct; Relationship to Surface = At or Near OBJECTID Object ID Merge policy Default value Permanent_Identifier String No Resolution Resolution 484 Wash Elevation ElevationRange during or after a local rainstorm or heavy snowmelt. Field type Long integer 42802 Pipeline: Pipeline Type = Aqueduct; Relationship to Surface = Elevated 431 Rapids 40 40-char GUID value that uniquely identifies the occurrence of each feature in The National Map. Area of swift current in a stream or river characterized by standing waves, or by boulders and rocks. Code Description FCode 43100 Rapids FCode FCode 48400 Wash FCode Split policy Duplicate 42803 Pipeline: Pipeline Type = Aqueduct; Relationship to Surface = Underground FDate Date Yes 0 0 8 Date of last feature modification. 48500 Water Intake/Outflow StreamLevel Long integer Yes Resolution Merge policy Default value Resolution Resolution Resolution 42804 Pipeline: Pipeline Type = Aqueduct; Relationship to Surface = Underwater 434 Reef Drain_level of the downstream mainstem drain. 0 Chain of rocks or coral at, or near, the surface of the water. ElevationRange Structure through which water enters or exits a conduit. Code Description FCode 43400 Reef FCode 485 Water IntakeOutflow Elevation 42814 Pipeline: Pipeline Type = General Case Strahler stream order number for the drain. StreamOrder Long integer Yes 0 36200 Flume FromNode Double Yes Resolution Resolution FCode 48500 Water IntakeOutflow FCode 42805 Pipeline: Pipeline Type = General Case; Relationship to Surface = At or Near 450 SinkRise 0 0 Nationally unique ID for the "from" node endpoint of the drain. Place at which a stream disappears underground or reappears at the surface in a karst area. Coded value domain FCode 45000 SinkRise FCode 42806 Pipeline: Pipeline Type = General Case; Relationship to Surface = Elevated Sounding Datum Line FCode Coded value domain ToNode Double Yes 0 0 Nationally unique ID for the "to" node endpoint of the drain. Resolution Resolution 503 Sounding Datum Line 42807 Pipeline: Pipeline Type = General Case; Relationship to Surface = Underground Description Waterfall FCode HydroSeq Double Yes 0 0 Nationally unique sequence number that places the reach in hydrologic sequence. Line representing the tidal datum to which bathymetric contours are referenced. FCode 50302 Sounding Datum Line FCode Coded value domain 42808 Pipeline: Pipeline Type = General Case; Relationship to Surface = Underwater Field type Long integer Description LevelPathID Double Yes 0 0 Hydro Sequence No. of downstream drain that is on the same level path as this drain according to the DFlow Table. Resolution Resolution Split policy Duplicate Field type Long integer 478 Tunnel Underground or underwater passage. Foreshore FCode 42815 Pipeline: Pipeline Type = Penstock PathLengthKM Double Yes 0 0 Distance from this drain pourpoint to its terminal drain's pourpoint according to the DFlow Table. FCode 47800 Tunnel FCode Merge policy Default value Split policy Duplicate Description 42809 Pipeline: Pipeline Type = Penstock; Relationship to Surface = At or Near TerminalPathID Double Yes 0 0 Hydrologic sequence number of terminal flowline. Merge policy Default value Resolution Resolution Upright structure of masonry, wood, plaster, or other building material serving to Code Description Field type Long integer 42810 Pipeline: Pipeline Type = Penstock; Relationship to Surface = Elevated 483 Wall ArbolateSumKM Double Yes 0 0 Sum of the lengths of all the drains that drain to the downstream end of the current drain. FCode 48300 Wall FCode enclose, divide, or protect an area. 50300 Sounding Datum Line Code Description Split policy Duplicate Geometry Polygon 42811 Pipeline: Pipeline Type = Penstock; Relationship to Surface = Underground DivergenceFlag Long integer Yes 0 If this drain is 1 branch of a flow split, 1=drain is main branch, 2=otherwise, 0= drain not a branch of flow split. Simple feature class Contains regions representing areal Merge policy Default value 50301 Sounding Datum Line: Positional Accuracy = Approx 48700 Waterfall Resolution Resolution Contains M values No Vertical or near vertical descent of water over a step or ledge in the bed of a river. 42812 Pipeline: Pipeline Type = Penstock; Relationship to Surface = Underwater 487 Waterfall StartFlag Long integer Yes 0 Set to '1' if the drain is a headwater drain according to the DFlow Table, otherwise '0'. FCode 48700 Waterfall FCode NHDWaterbody Contains Z values Yes NHD hydrographic waterbody features. Code Description 50302 Sounding Datum Line: Positional Accuracy = Definite 42813 Pipeline: Pipeline Type = Siphon TerminalFlag Long integer Yes 0 Set to '1' if drain is a terminal drain (flows into ocean, Great Lakes, Canada, Mex. or the ground) otherwise set to '0'. 36400 Foreshore DnLevel Long integer Yes 42820 Pipeline: Pipeline Type = Stormwater 0 Stream level of drain. Allow Prec- 42821 Pipeline: Pipeline Type = Stormwater; Relationship to Surface = At or Near ThinnerCode Long integer Yes 0 Field name Data type nulls Default value Domain ision Scale Length Ordinal value designed to allow selection of progressively more dense networks. Least dense network=1. Coded value domain Geometry Polyline Simple feature class Coded value domain 42822 Pipeline: Pipeline Type = Stormwater; Relationship to Surface = Elevated UpLevelPathId Double Yes 0 0 Contains M values Yes Consists of routes that make up a linear LevelPathID of upstream mainstream drain. OBJECTID Object ID Well FCode NHDFlowline Contains Z values Gaging Station FCode 42823 Pipeline: Pipeline Type = Stormwater; Relationship to Surface = Underground UpHydroSeq Double Yes 0 0 Hydro Sequence No. of upstream mainstem drain. Description UpMinHydroSeq Double Yes Shape Geometry Yes Yes surface water drainage network. Description 42824 Pipeline: Pipeline Type = Stormwater; Relationship to Surface = Underwater Field type Long integer 0 0 Minimum Hydro Sequence No. of all upstream drains. 40 40-char GUID value that uniquely identifies the occurrence of each feature in The National Map. Permanent_Identifier String No Allow Prec- Field type Long integer Split policy Duplicate DnLevelPathID Double Yes 0 0 Level path ID of downstream drain. FDate Date No 0 0 8 Date of last feature modification. Field name Data type nulls Default value Domain ision Scale Length Split policy Duplicate Merge policy Default value DnMinHydroSeq Double Yes 0 0 At a divergence, the Hydro sequence number of the minor downstream drain. Code for source resolution: 1 = Local resolution, 2 = High resolution, 3 = Medium resolution. Merge policy Default value Resolution Long integer No Resolution 0 OBJECTID Object ID Code Description DnDrainCount Long integer Yes 0 Number of drains immediately downstream. 10 Unique identifier assigned by GNIS, length 10. Code Description 48800 Well GNIS_ID String Yes Shape Geometry Yes GLOBALID Global ID 65 Proper name, specific term, or expression by which a particular geographic entity is known, length 65. 36700 Gaging Station Permanent_Identifier String No GNIS_Name String Yes 40 40-char GUID value that uniquely identifies the occurrence of each feature in The National Map. Area of areal features, Albers Equal Area Conic, length 8. 36701 Gaging Station: Gaging Station Status = Active; Record = Continuous FDate Date No AreaSqKm Double Yes 0 0 0 0 8 Date of last feature modification. Elevation, in meters, of water surfaces where water pools are encoded for a few features. Resolution Long integer No Elevation Double Yes ElevationRange 0 0 Code for source resolution: 1=Local resolution, 2=High resolution, 3=Medium resolution. Resolution 0 Unique identifier composed of two parts, first eight digits is subbasin code as defined by FIPS 103, ReachCode String Yes 14 Table Only NHDFlowline features can next six digits is randomly assigned sequential number unique within a Cataloging Unit, length 14. 10 Unique identifier assigned by GNIS, length 10. GNIS_ID String Yes FType Long integer No 390 0 Three-digit integer value, unique identifier of a feature type. FCode Long integer Yes 39004 65 Proper name, specific term, or expression by which a particular geographic entity is known, length 65. NHDVerticalRelationship participate in vertical relationships. GNIS_Name String Yes 0 Five-digit integer value comprised of the feature type and combinations of characteristics and values. Length of linear feature, Albers Equal Area Conic, length 8. LengthKm Double Yes 0 0 Unique identifier composed of two parts. The first eight digits is the subbasin code as defined by FIPS 103. The next Allow Prec- VisibilityFilter Long integer No 0 VisibilityFilter Domain 0 Represents the appropriate use of individual features through scale. Does not reflect capture conditions. Field name Data type nulls Default value Domain ision Scale Length ReachCode String Yes 14 six digits are randomly assigned, sequential numbers that are unique within a Cataloging Unit, length 14. Shape_Area Double Yes 0 0 OBJECTID Object ID FlowDir Long integer No 0 HydroFlowDirections 0 Direction of flow relative to coordinate order, length 4. GLOBALID Global ID Permanent_Identifier String No WBArea_Permanent_Identifier String Yes 40 Permanent_Identifier of the waterbody through which the Flowline (Artificial Path) flows. 40 40-char GUID value that uniquely identifies the occurrence of each feature in The National Map. Non-FCode Domains Three digit integer value, unique identifier of a feature type. FType Long integer No 460 0 Above_Permanent_Identifier String No 40 Permanent Identifier of feature above vertical offset. FCode Long integer Yes 46003 0 Below_Permanent_Identifier String No Five-digit integer value comprised of the feature type and combinations of characteristics and values. 40 Permanent Identifier of feature below vertical offset. Coded value domain GLOBALID Global ID Subtypes of NHDWaterbody MainPath Long integer No 0 MainPath Domain 0 Area Event Type InNetwork Long integer Yes 0 NoYes Domain 0 Subtype field FType Description Coded value domain Coded value domain Default subtype 390 List of defined default values and domains for subtypes in this class Field type Long integer Split policy Duplicate Represents the appropriate use of individual features through scale. Does not reflect capture conditions. VisibilityFilter Long integer No 0 VisibilityFilter Domain 0 Event Feature Class Reference HydrologicUnitSource Subtype Subtype Shape_Length Double Yes 0 0 Coded value domain Merge policy Default value Description Description Code Description Field name Default value Domain Definitions of features GLOBALID Global ID Field type Long integer Field type Long integer Organization Type Code Description Split policy Duplicate Split policy Default value Resolution Resolution Description Table Contains associations of Permanent_Identifiers Lower end of a river, or a semi-enclosed coastal body of water with access to the open ocean, ElevationRange Merge policy Default value Merge policy Default value Field type Long integer 493 Estuary Elevation which is affected by the tides and where fresh and salt water mix. ExternalCrosswalk to external source identifiers. (1:M) Code Description Code Description Split policy Duplicate FCode 49300 Estuary FCode Subtypes of NHDFlowline Coded value domain Coded value domain 1 NHDArea 0 Watershed Boundaries Dataset Merge policy Default value Allow Prec- Resolution Resolution VisibilityFilter Domain Subtype field FType Field name Data type nulls Default value Domain ision Scale Length Line Event Type 2 NHDFlowline 1 NHD Code Description 378 Ice Mass Elevation ElevationRange A field of ice, formed in regions of perennial frost. Description VisibilityFilter OBJECTID Object ID Default subtype 460 List of defined default values and domains for subtypes in this class 0 Unknown Description 3 NHDLine 2 Other Field type Domain FCode 37800 Ice Mass FCode Subtype Subtype Field type Long integer 40 40-char GUID value that uniquely identifies the occurrence of each feature in The National Map. 1 International Split policy Long integer Permanent_Identifier String No 4 NHDPoint ExternalID String Yes Code Description Field name Default value Domain Definitions of features Resolution Resolution Split policy Duplicate 2 Federal Merge policy Duplicate 40 Uniquely identifies the occurrence of each feature in the source dataset. 5 NHDWaterbody ElevationRange Standing body of water with a predominantly natural shoreline surrounded by land. Merge policy Default value 390 LakePond Elevation Default value Resolution Resolution 50 Field name in the external source dataset that contains the unique IDs. 3 Tribal Code Description ExternalIDName String Yes Coded value domain FCode 39004 LakePond FCode 558 Artificial Path Code Description FlowDir 0 HydroFlowDirections Abstraction to facilitate hydrologic modeling through open water bodies and along coastal and 4 State 0 Unspecified 130 Name of the organization or individual who developed the external dataset/features. ExternalIDOriginator String Yes MainPath Domain Resolution Resolution FCode 55800 Artificial Path FCode Great Lakes shorelines and to act as a surrogate for lakes and other water bodies. 5 Regional 4800 Approximately 1:4,800 or Larger Scale OrganizationType Long integer Yes Organization Type 0 Administrative level of the organization who developed the external dataset/features. Description MainPath Domain 361 Playa Elevation ElevationRange Resolution Resolution Coded value domain Field type Long integer 6 County 12500 Approximately 1:12,500 or Larger Scale Flat area at the lowest part of an undrained desert basin, generally devoid of vegetation. ExternalIDEntryDate Date Yes Coded value domain 0 0 8 LoadDate of ExternalID record. FCode 36100 Playa FCode FlowDir 0 HydroFlowDirections Artificial open waterway constructed to transport water, to irrigate or drain land, to connect 336 CanalDitch Point Event Type FlowDirection Split policy Duplicate 7 Municipal 24000 Approximately 1:24,000 or Larger Scale GLOBALID Global ID two or more bodies of water, or to serve as a waterway for watercraft. Resolution Resolution Merge policy Default value FCode 33600 CanalDitch FCode 8 Private 50000 Approximately 1:50,000 or Larger Scale Description Description Point Event Type ElevationRange Constructed basin formed to contain water or other liquids. 436 Reservoir Elevation Field type Long integer Code Description Resolution Resolution 100000 Approximately 1:100,000 or Larger Scale 566 Coastline Field type Domain FCode 43600 Reservoir FCode Split policy Long integer FlowDir 0 HydroFlowDirections Line that follows the main outline of the land, including bays, but crosses rivers at their mouth. Split policy Default value 0 Unspecified 150000 Approximately 1:150,000 or Larger Scale Resolution Merge policy Duplicate Merge policy Default value In the NHD, the outline of selected coastal islands are included as part of the coastline. Resolution 1 Confluence Main FCode 56600 Coastline FCode 250000 Approximately 1:250,000 or Larger Scale Noncultivated, vegetated area that is inundated or saturated for a significant part of the year. Default value 466 SwampMarsh Elevation ElevationRange Code Description Code Description 2 Divergence Main Resolution Resolution 500000 Approximately 1:500,000 or Larger Scale The vegetation is adapted for life in saturated soil conditions. Coded value domain FCode 46600 SwampMarsh FCode 57001 Streamgage: Streamgage Status = Active; Record = Continuous 709 In 3 Both Confluence and Divergence 334 Connector FlowDir 0 HydroFlowDirections Known, but unspecific, connection between two nonadjacent network segments. 1000000 Approximately 1,000,000 or Larger Scale Resolution 57002 Streamgage: Streamgage Status = Active; Record = Partial 712 NetworkStart FCode 33400 Connector FCode 2000000 Approximately 1:2,000,000 or Larger Scale 57003 Streamgage: Streamgage Status = Inactive 713 NetworkEnd Description Resolution Resolution 5000000 Approximately 1:5,000,000 or Larger Scale Field type Long integer Closed conduit with pumps, valves, and control devices, for conveying fluids, gasses, or 57004 Water Quality Station 714 Non-Flowing 428 Pipeline FlowDir 0 HydroFlowDirections Split policy Duplicate 57100 Dam finely divided solids. Coded value domain Merge policy Default value FCode 42805 Pipeline FCode Processing NoYes Domain 57201 Flow Alteration = Addition Resolution Resolution Code Description Description NoYes Domain 57202 Flow Alteration = Removal 1 Local Coded value domain 460 StreamRiver FlowDir 0 HydroFlowDirections Body of flowing water. Field type Long integer Table Parameters used for 57203 Flow Alteration = Unknown HydroFlowDirections Duplicate 2 High FCode 46006 StreamRiver FCode Split policy NHDProcessingParameters 57300 Hydrologic Unit Outlet Description Merge policy Default value 3 Medium processing data. Resolution Resolution Field type Long integer Allow Prec- Code Description FlowDir 0 HydroFlowDirections Underground passage of surface water. 420 Underground Conduit Split policy Duplicate Field name Data type nulls Default value Domain ision Scale Length 0 No FCode 42000 Underground Conduit FCode Merge policy Default value OBJECTID Object ID 1 Yes Range domain Description ParameterName String No 24 ParameterName Domain ElevationRange Code 0 Uninitialized ParameterValue String No 100 Description 1 WithDigitized Field type Double Split policy Default value Merge policy Default value Minimum value Maximum value Relationship class -400 9000 Table NHDStatus is used to track data changes for Relationship class NHDAreaToMeta NHDAreaEventFCToMeta NHDStatus transaction uploads to the central depository. One to many Event Feature Classes One to many Allow Prec- Field name Data type nulls Default value Domain ision Scale Length Geometry Polygon OBJECTID Object ID Simple feature class No Relationship class Contains M values Relationship class NHDFlowlineToMeta ID String No 0 40 NHDAreaEventFC Contains Z values No Relationship class NHDPointToMeta NHDLineEventFCToMeta One to many 40 Permanent_Identifier String No 0 Status Long integer No Status 0 One to many One to many Allow Prec- Field name Data type nulls Default value Domain ision Scale Length Relationship class Shape Geometry Yes NHDLineToMeta Table OBJECTID Object ID Relationship class One to many NHDMetadata Table Table used to maintain links for backward Permanent_Identifier String No 40 Relationship class NHDPointEventFCToMeta NHDWaterbodyToMeta NHDReachCodeMaintenance compatibility with FOD-based systems. EventDate Date Yes 0 0 8 One to many Allow Prec- One to many ReachCode String No 14 Allow Prec- Field name Data type nulls Default value Domain ision Scale Length Field name Data type nulls Default value Domain ision Scale Length ReachSMDate Date Yes 0 0 8 OBJECTID Object ID ReachResolution Long integer No Resolution 0 Meta_ProcessID String Yes OBJECTID Object ID 40 Unique permanent ID value which uniquely identifies a process in The National Map. 40 40-char GUID value that uniquely identifies the occurrence of each feature in The National Map. Feature_Permanent_Identifier String Yes Unique identifier composed of two parts, first eight digits = subbasin code as defined by FIPS 103, and next Permanent_Identifier String No 4000 Explanation of the process, including parameters or tolerances. ProcessDescription String No ReachCode String No 14 FeatureClassRef Long integer Yes Event Feature Class Reference 0 six digits = random-assigned sequential number unique within a Cataloguing Unit. 0 0 8 Date when the process was completed. ProcessDate Date No ReachSMDate Date Yes 0 0 8 Source_Originator String Yes 130 Reach Spatial Modification Date. 1800 Explanation of entities and assignments of values in dataset. AttributeAccuracyreport String Yes 40 Feature Resolution Long integer No Resolution 0 Source_DataDesc String Yes 100 LogicalConsistencyReport String Yes Code of source resolution: 1=Local resolution, 2=High resolution, 3=Medium Resolution. 1000 Explanation of fidelity of relationships in dataset, and tests used. GNIS_ID String Yes 10 Source_FeatureID String Yes 100 CompletenessReport String Yes Unique identifier assigned by GNIS. 2400 Information about omissions, criteria, definitions used to derive dataset. GNIS_Name String Yes 100 FeatureDetailURL String Yes 255 GLOBALID Global ID Proper name, specific term, or expression by which a particular geographic entity is known. HorizPositionalAccuracyReport String Yes 3100 Horizontal coordinate measurements and description of tests used. EventType Long integer No Area Event Type 0 VertPositionalAccuracyReport String Yes 3100 Vertical coordinate measurements and description of tests used. Shape_Length Double Yes 0 0 Metadata 100 Name of the metadata standard used to document the dataset. MetadataStandardName String Yes Shape_Area Double Yes 0 0 MetadataStandardVersion String Yes 40 Identification of the version of the metadata standard used to document the dataset. GLOBALID Global ID MetadataDate Date Yes 0 0 8 Date the metadata was last created or updated. In the NHD geodatamodel, feature-level metadata 4000 Recognition of those who contributed to the dataset. DataSetCredit String Yes Table 100 Name or organization to which type of contact applies. ContactOrganization String Yes information is included in three tables: NHDReachCrossReference Geometry Polyline 40 Information provided about the address, i.e.; mailing, physical, etc. Contains M values No AddressType String Yes Simple feature class NHDFeatureToMetadata, NHDMetdata, and Allow Prec- 100 Address line for the address. Address String Yes NHDLineEventFC Contains Z values No Field name Data type nulls Default value Domain ision Scale Length City String Yes 40 City of the address. NHDSourceCitation. The NHDFeatureToMetadata OBJECTID Object ID 30 State or province of the address. OldReachCode String Yes StateOrProvince String Yes 17 Reach code prior to change. table links the features to their instances of 20 ZIP or other postal code of the address. PostalCode String Yes Allow Prec- 0 0 8 Date when OldReachCode was originally assigned (yyyymmdd). OldReachDate Date Yes 40 Telephone number to reach organization or individual. ContactVoiceTelephone String Yes Field name Data type nulls Default value Domain ision Scale Length metadata. The NHDMetadata table contains the NewReachCode String Yes 17 Reach code after change. 120 Supplemental instructions to contact organization or individual NewReachDate Date Yes ContactInstructions String Yes Shape Geometry Yes 0 0 8 Date when NewReachCode was assigned (yyyymmdd). ContactEmailAddress String Yes 40 E-mail address to reach contact organization or individual. OldUPMI String Yes general metadata characteristics for each OBJECTID Object ID 5 Upstream Marker Index of Old Reach (RF-3-Alpha Only). GLOBALID Global ID Permanent_Identifier String No 40 collection of features. The NHDSourceCitation 5 Upstream Marker Index of New Reach (RF-3-Alpha Only). NewUPMI String Yes EventDate Date Yes 0 0 8 ChangeCode Domain 4 Type of change to the reach feature. ChangeCode String Yes ReachCode String No 14 table details the source associated with each Process String Yes Process Domain 6 Process where the change occurred. ReachSMDate Date Yes 0 0 8 For more information on the National Hydrography Dataset (NHD) and the ReachFileVersion Domain 10 Reach File Version in which change became effective. ReachFileVersion String Yes metadata instance. ReachResolution Long integer No Resolution 0 8 Hydrologic Unit of feature prior to migration. OldHUCode String Yes Feature_Permanent_Identifier String Yes 40 8 Hydrologic Unit of feature after migration. NewHUCode String Yes FeatureClassRef Long integer Yes Event Feature Class Reference 0 Watershed Boundary Dataset (WBD), including the latest news, user resources, GLOBALID Global ID Source_Originator String Yes 130 Source_DataDesc String Yes 100 Source_FeatureID String Yes 100 tools, tutorials and webinars, and to download NHD and WBD datasets, please visit: FeatureDetailURL String Yes 255 FMeasure Double No Relationship class 0 0 NHDMetadataHasSourceCitation TMeasure Double No 0 0 EventType Long integer No Line Event Type 0 One to many http://nhd.usgs.gov EventOffset Double Yes 0 0 Shape_Length Double Yes 0 0 Table Coded value domain GLOBALID Global ID NHDFeatureToMetadata ChangeCode Domain Allow Prec- Description Field type String Field name Data type nulls Default value Domain ision Scale Length Processing Domains OBJECTID Object ID Split policy Duplicate Merge policy Default value Coded value domain Permanent_Identifier String Yes 40 Geometry Point Simple feature class Meta_ProcessID String Yes Contains M values No 40 Code Description Status NHDPointEventFC Contains Z values No To learn about NHDPlus, an integrated suite of geospatial products that builds upon 11 Old reach to new reach GLOBALID Global ID Description Coded value domain Coded value domain Field type Long integer 1P 1P Old reach to part of new reach ParameterName Domain Process Domain Split policy Default value P1 P1 Part of old reach to new reach Description Description Merge policy Default value Allow Prec- A A Add new reach and extends the capabilities of the NHD, and the WBD, and the National Elevation Table Field type String Field type String Field name Data type nulls Default value Domain ision Scale Length Code Description D D Delete old reach Split policy Duplicate Split policy Duplicate NHDSourceCitation 1 Add Feature Shape Geometry Yes Merge policy Default value Merge policy Default value PP PP Part of old reach to part of new reach Allow Prec- 2 Modify Feature Attribute OBJECTID Object ID 1M 1M (historic) Old reach split to multiple new reaches Code Description Code Description Field name Data type nulls Default value Domain ision Scale Length Dataset (NED) data, please visit: 3 Modify Feature Geometry Version Version Permanent_Identifier String No 40 AVEDIT AVEDIT M1 M1 (historic) Mult old reaches merged to single new reach Relationship class OBJECTID Object ID 5 Delete Feature Resolution Resolution EventDate Date Yes 0 0 8 GDBEDT GDBEDT NHDMetaToFeature Source_DatasetID String Yes 40 Unique permanent ID value which uniquely identifies a source dataset used in The National Map. 6 Delete Relationship Processing_Organization Processing_Organization 100_24 100_24 ReachCode String No 14 Coded value domain Title String Yes 255 Name by which the dataset is known. One to many 7 Add Metadata SchemaVersion SchemaVersion 24_loc 24_loc ReachSMDate Date Yes 0 0 8 ReachFileVersion Domain SourceCitationAbbreviation String Yes 255 Short form alias for source citation. 8 Modify VAA ReachResolution Long integer No Resolution 0 Work_Type Work Type AK2FOD AK2FOD (historic) Description http://www.epa.gov/waterdata/ Originator String Yes 400 Name of an organization or individual that developed the dataset. JTXWorkflow JTX Workflow Type ARCUPD ARCUPD (historic) 9 Add Event Feature_Permanent_Identifier String Yes 40 Field type String PublicationDate Date Yes 0 0 8 Date the dataset is published or made available for release. 10 Modify Event Split policy Duplicate Jobid JTX Job Id FODGDB FODGDB (historic) FeatureClassRef Long integer Yes Event Feature Class Reference 0 BeginningDate Date Yes 0 0 8 First year of the event (if Range_of_Dates applies). Merge policy Default value ReachFileVersion Reach File Version FTIEDT FTIEDT (historic) 11 Delete Event Source_Originator String Yes 130 EndingDate Date Yes 0 0 8 Last year of the event (if Range_of_Dates applies). Code Description WBDSchemaVersion WBDSchemaVersion FTIFLO FTIFLO (historic) 12 Modify VAA All Source_DataDesc String Yes 100 SourceContribution String Yes 255 Brief statement identifying information contributed by source to dataset. M002.00000 M002.00000 GEO Medium Resolution ReleaseBuild ReleaseBuild GDBCVN GDBCVN (historic) 13 Add Relationship Source_FeatureID String Yes 100 SourceScaleDenominator Long integer Yes 0 Denomination of representative fraction on a map. H002.00000 H002.00000 GEO High Resolution 14 Add Metadata All (historic) FeatureDetailURL String Yes 255 SourceDB SourceDB NHDVIS NHDVIS (historic) TypeOfSourceMedia String Yes 255 The medium of the source dataset, i.e. paper, CD-ROM, online, etc. L002.00000 L002.00000 GEO Local Resolution 15 Add FeatureToMetadata All (historic) Measure Double No 0 0 PNWNHD PNWNHD (historic) 0 0 8 The year (if Single_Date applies). CalendarDate Date Yes TBD TBD 16 Add FeatureToMeta Relationship EventOffset Double Yes 0 0 The basis on which the source time period of content information of the RF3DBL RF3DBL (historic) SourceCurrentnessReference String Yes 255 M001.00000 M001.00000 (historic) FOD Medium Resolution 17 Create External Crosswalk source data set is determined. EventType Long integer No Point Event Type 0 Meta_ProcessID String Yes 40 Unique permanent ID value which uniquely identifies a process used in The National Map. H001.00000 H001.00000 (historic) FOD High Resolution 18 Modify External Crosswalk GLOBALID Global ID GLOBALID Global ID L001.00000 L001.00000 (historic) FOD Low Resolution 19 Process External Crosswalk All M000.00000 M000.00000 (historic) Pre-FOD 11
Transcript of NHDPoint FEATURE CLASSES - Amazon Web Services · 2020. 4. 8. · The Catalog View FCode (Feature)...
August 1, 2016
The Catalog View FCode (Feature) Domains Coded value domain Coded value domain NHD Geodatabase Coded value domain Coded value domain Object table Relationship Area of Complex Channels FCode Gate FCode Playa FCode Spillway FCode Description Description Description Description Feature dataset EXTERNALCROSSWALK NHDMetadataHasSourceCitation Field type Long integer Field type Long integer Field type Long integer Field type Long integer Model Changes
Split policy Duplicate Split policy Duplicate Split policy Duplicate Split policy Duplicate Hydrography Object table Merge policy Default value Merge policy Default value Relationship ComID field deleted from all feature classes/tables Merge policy Default value Merge policy Default value Code Description Code Description HYDRO_NET_BUILDERR Geometric network NHDMetaToFeature DuuID field deleted from metadata tables Code Description Code Description 36100 Playa 45500 Spillway 53700 Area of Complex Channels 36900 Gate
RelationshipHYDRO_NET Relationship All other changes indicated as follows: Simple feature class Geometry Point Contains points representing Coded value domain NHDAreaEventFCToMeta Point feature class NHDPointEventFCToMeta New element Update Deletion Coded value domain SpringSeep FCode
Contains Z values Yes NHDPoint Contains M values No NHD hydrographic landmark features. Area to be Submerged FCode Coded value domain Description Relationship HYDRO_NET_Junctions Relationship Allow Prec- Description Coded value domain Rapids FCode Field type Long integer NHDPointToMeta Field name Data type nulls Default value Domain ision Scale Length Field type Long integer Ice Mass FCode Split policy Duplicate Polygon feature class NHDAreaToMeta FEATURE CLASSES Description Split policy Duplicate Merge policy Default value OBJECTID Object ID Description Field type Long integer Merge policy Default value NHDArea Object table Shape Field type Long integer Split policy Duplicate Code Description
Code Description Split policy Duplicate Merge policy Default value 45800 Spring/Seep Object table Geometry Yes
Permanent_Identifier String No 40 40-char GUID value that uniquely identifies the occurrence of each feature in The National Map. Polygon feature class NHDProcessingParamaters 30700 Area to be Submerged Merge policy Default value NHDFCode Code Description FDate Date No 0 0 8 Date of last feature modification. Code Description 43100 Rapids NHDAreaEventFC Resolution Long integer No Resolution 0Object table Code for source resolution: 1=Local resolution, 2=High resolution, 3=Medium resolution. 37800 Ice Mass Object table Coded value domain 10 Unique identifier assigned by GNIS, length 10. Coded value domain GNIS_ID String Yes StreamRiver FCode Line feature class NHDReachCodeMaintenance NHDFeatureToMetadata 65 Proper name, specific term, or expression by which a particular geographic entity is known. ArtificialPath FCode
Unique identifier composed of two parts. The first eight digits are the subbasin code defines by FIPS 103, GNIS_Name String Yes Description
14 Description ReachCode String Yes NHDFlowline Field type Long integer next six digits is a randomly assigned sequential number unique within a Cataloging Unit, length 14. Object table Geometry Polygon Field type Long integer Coded value domain Object table Split policy Duplicate FType Long integer No 458 0 Three-digit integer value, unique identifier of a feature type. Simple feature class Contains M values No Contains regions representing areal Split policy Duplicate Line feature class Reef FCode Merge policy Default value Coded value domain FCode Long integer Yes 45800 0NHDReachCrossReference Five-digit integer value comprised of the feature type and combinations of characteristics and values. NHDFlow NHDArea Contains Z values Yes NHD hydrographic waterbody features. Merge policy Default value Description Code Description GLOBALID Global ID Inundation Area FCode Code Description NHDLine Field type Long integer 46000 Stream/River Description Relationship Object table Allow Prec- 55800 Artificial Path Split policy Duplicate Field type Long integer 46003 Stream/River: Hydrographic Category = Intermittent Field name Data type nulls Default value Domain ision Scale Length Line feature class Merge policy Default value NHDFlowlineToMeta NHDSourceCitation Split policy Duplicate 46006 Stream/River: Hydrographic Category = Perennial Code Description Subtypes of NHDPoint OBJECTID Object ID Merge policy Default value NHDLineEventFC 46007 Stream/River: Hydrographic Category = Ephemeral Coded value domain 43400 Reef Shape Geometry Yes Object table Object table Description Subtype field FType
Permanent_Identifier String NoPoint feature class 40 40-char GUID value that uniquely identifies the occurrence of each feature in The National Map. BayInlet FCode Code 40300 Inundation Area Default subtype 458 List of defined default values and domains for subtypes in this class NHDFlowlineVAA NHDStatus Description 40308 Inundation Area; Inundation Control Status = Controlled FDate Date No 0 0 8 Date of last feature modification. Subtype Subtype Field type Long integer Coded value domain NHDPoint Relationship Code for source resolution: 1 = Local resolution, 2 = High resolution, 3 = Medium resolution. 40309 Inundation Area; Inundation Control Status = Controlled; Stage = Flood Elevation Resolution Long integer No Resolution 0Code Description Field name Default value Domain Definitions of features Split policy Duplicate Object table Submerged Stream FCode GNIS_ID String Yes 10 Unique identifier assigned by GNIS, length 10. Merge policy Default value 40307 Inundation Area; Inundation Control Status = Not Controlled Resolution Resolution Point feature class NHDLineEventFCToMeta Coded value domain Description 343 DamWeir Barrier constructed to control the flow, or raise the level, of water. 65 Proper name, specific term, or expression by which a particular geographic entity is known, length 65. Code Description NHDVerticalRelationship GNIS_Name String Yes FCode 34305 DamWeir FCode Reservoir FCode Field type Long integer NHDPointEventFC AreaSqKm Double Yes 0 0Relationship Split policy Duplicate Area of areal features, Albers Equal Area Conic, length 8. 31200 Bay/Inlet Resolution Resolution Description 367 Gaging Station Relationship Structure used to measure the characteristics of a hydrographic feature. Elevation Double Yes ElevationRange 0 0 Elevation, in meters, of water surfaces where water pools are encoded for a few features. Field type Long integer Merge policy Default value FCode 36700 Gaging Station FCode Polygon feature class NHDLineToMeta Split policy Duplicate Code Description FType Long integer No 460 0 Three-digit integer value, unique identifier of a feature type. Resolution Resolution NHDWaterbodyToMeta Coded value domain Coded value domain 369 Gate Merge policy Default value 46100 Submerged Stream FCode 36900 Gate FCode Structure that may be swung, drawn, or lowered, to block an entrance or passageway. FCode Long integer Yes 46006 0NHDWaterbody Five-digit integer value comprised of the feature type and combinations of characteristics and values. Object table Bridge FCode LakePond FCode Code Description VisibilityFilter Long integer No 0 VisibilityFilter Domain 0 Represents the appropriate use of individual features through scale. Does not reflect capture conditions. Resolution Resolution Description Description 43600 Reservoir 398 Lock Chamber Enclosure on a waterway used to raise or lower the vessels as they pass from one level to another. Shape_Area Double Yes 0 0NHDMetadata FCode 39800 Lock Chamber FCode Field type Long integer Field type Long integer 43618 Reservoir: Construction Material = Earthen
Split policy Duplicate Split policy Duplicate Resolution Resolution GLOBALID Global ID 43619 Reservoir: Construction Material = Nonearthen Coded value domain 431 Rapids Merge policy Default value Merge policy Default value
Code Description Code Description 43601 Reservoir: Reservoir Type = Aquaculture SwampMarsh FCode FCode 43100 Rapids FCode Area of swift current in a stream or river characterized by standing waves, boulders, or rocks.
Resolution Resolution 31800 Bridge 39000 Lake/Pond 43609 Reservoir: Reservoir Type = Cooling Pond Description 436 Reservoir Constructed basin formed to contain water or other liquids. FCode 43600 Reservoir FCode Field type Long integer 39001 Lake/Pond: Hydrographic Category = Intermittent 43603 Reservoir: Reservoir Type = Decorative Pool Subtypes of NHDArea Split policy Duplicate
441 Rock Resolution Resolution
39006 Lake/Pond: Hydrographic Category = Intermittent; Stage = Date of Photography 43606 Reservoir: Reservoir Type = Disposal Subtype field FType Merge policy Default value Concreted mass of stony material. Default subtype 460 List of defined default values and domains for subtypes in this class Coded value domain 39005 Lake/Pond: Hydrographic Category = Intermittent; Stage = High Water Elevation 43625 Reservoir: Reservoir Type = Disposal; Construction Material = Earthen
FCode 44101 Rock FCode Code Description Resolution Resolution CanalDitch FCode 39004 Lake/Pond: Hydrographic Category = Perennial 43626 Reservoir: Reservoir Type = Disposal; Construction Material = Nonearthen 450 SinkRise 46600 Swamp/Marsh Subtype Subtype
Code Description Field name Default value Domain Definitions of features Description 39009 Lake/Pond: Hydrographic Category = Perennial; Stage = Average Water Elev 43607 Reservoir: Reservoir Type = Evaporator FCode 45000 SinkRise FCode Place at which a stream disappears underground, or reappears at the surface in a karst area.
46601 Swamp/Marsh: Hydrographic Category: Intermittent Resolution Resolution Field type Long integer 39011 Lake/Pond: Hydrographic Category = Perennial; Stage = Date of Photography 43623 Reservoir: Reservoir Type = Evaporator; Construction Material = Earthen 458 SpringSeep 46602 Swamp/Marsh: Hydrographic Category: Perennial Resolution Resolution FCode 45800 SpringSeep FCode Place where water issues from the ground naturally. Attribute Tables Area where a stream or river flows in an intricate network of interlacing channels. Split policy Duplicate 39010 Lake/Pond: Hydrographic Category = Perennial; Stage = Normal Pool 43610 Reservoir: Reservoir Type = Filtration Pond 537 Area of Complex Channels Elevation ElevationRange Merge policy Default value Resolution Resolution 485 Water IntakeOutflow 39012 Lake/Pond: Hydrographic Category = Perennial; Stage = Spillway 43611 Reservoir: Reservoir Type = Settling Pond FCode 53700 Area of Complex Channels FCode Structure through which water enters or exits a conduit. FCode 48500 Water IntakeOutflow FCode Code Description 43612 Reservoir: Reservoir Type = Sewage Treatment Pond Resolution Resolution 33600 Canal Ditch Resolution Resolution Feature Detail Known extent of the intended lake that will be created behind a dam under construction. 43608 Reservoir: Reservoir Type = Swimming Pool Coded value domain 487 Waterfall 307 Area to be Submerged Elevation FCode 48700 Waterfall FCode Vertical or near vertical descent of water over a step or ledge in the bed of a river. ElevationRange 33601 Canal Ditch: Canal Ditch Type = Aqueduct
43605 Reservoir: Reservoir Type = Tailings Pond Tunnel FCode FCode 30700 Area to be Submerged FCode 33603 Canal Ditch: Canal Ditch Type = Stormwater Resolution Resolution Table 43604 Reservoir: Reservoir Type = Tailings Pond; Construction Material = Earthen Description 488 Well Pit or hole, dug or bored into the earth for the extraction of water or other fluids, or gasses. Resolution Resolution FCode 48800 Well FCode Water opening that is an opening into the sea/ocean into the land, or of an estuary, lake, or NHDFCode Field type Long integer Coded value domain 43624 Reservoir: Reservoir Type = Treatment 312 BayInlet Elevation ElevationRange river into its shore. Split policy Duplicate Allow Prec- Levee FCode 43617 Reservoir: Reservoir Type = Water Storage Merge policy Default value FCode 31200 BayInlet FCode Coded value domain Field name Data type nulls Default value Domain ision Scale Length Description 43614 Reservoir: Reservoir Type = Water Storage; Construction Material = Earthen; Hydro Cat = Intermittent Resolution Coastline FCode Resolution Code Description Field type Long integer OBJECTID Object ID 43615 Reservoir: Reservoir Type = Water Storage; Construction Material = Earthen; Hydro Cat = Perennial Description 47800 Tunnel 318 Bridge Elevation Five-digit integer value comprised of the feature type and the combinations ElevationRange Structure spanning and providing passage over a waterway, railroad, or other obstacle. Geometry Polyline Split policy Duplicate Simple feature class Contains M values No Contains routes representing linear FCode Long integer No 0 Field type Long integer 43613 Reservoir: Reservoir Type = Water Storage; Construction Material = Nonearthen of characteristics and values. FCode 31800 Bridge FCode Merge policy Default value Split policy Duplicate Description String No 255 NHDLine Contains Z values Yes NHD hydrographic landmark features. 43621 Reservoir: Reservoir Type = Water Storage; Hydrographic Category = Perennial Resolution Resolution Merge policy Default value Code Description 32 Function or purpose (Aqueduct or Unspecified). CanalDitchType String Yes Artificial open waterway constructed to transport water, to irrigate or drain land, 56800 Levee 336 CanalDitch Elevation ElevationRange Coded value domain Allow Prec- to connect two or more bodies of water, or to serve as a waterway for watercraft. Code Description
Field name Data type nulls Default value Domain ision Scale Length 32 Predominant material used (Earthen, Nonearthen, or Unspecified. ConstructionMaterial String Yes FCode 33600 CanaDitch FCode 56600 Coastline Underground Conduit FCode 32 Portion of the year the feature contains water (Intermittent or Perennial). HydrographicCategory String Yes
Resolution Resolution Description OBJECTID Object ID 343 DamWeir 32 Existence of functional control sturctures (Controlled or Not Controlled). InundationControlStatus String Yes Elevation Field type Long integer ElevationRange Barrier constructed to control the flow or raise the level of water. Coded value domain
FCode 34305 DamWeir FCode Coded value domain Shape Geometry Yes OperationalStatus String Yes 32 State or condition (Abandoned or Operational). Split policy Duplicate
PipelineType String Yes Rock FCode 32 Function or purpose (Aqueduct, General, Penstock, or Siphon). Merge policy Default value 40 40-char GUID value that uniquely identifies the occurrence of each feature in The National Map. Permanent_Identifier String No Resolution Connector FCode Coded value domain Resolution Description 32 The accuracy a feature can be confidently positioned (Approximate or Definite). PositionalAccuracy String Yes 0 0 8 Date of last feature modification. Code Description FDate Date No Description Lock Chamber FCode 362 Flume Elevation Field type Long integer ElevationRange Open, inclined, artificial channel constructed of wood, metal, or concrete; generally elevated. 32 Vertical location relative to the surface (Abovewater or Underwater). RelationshipToSurface String Yes 42000 Underground Conduit Field type Long integer Description Split policy Duplicate Code for source resolution: 1=Local resolution, 2=High resolution, 3=Medium resolution. Resolution Long integer No Resolution 0 FCode 36200 Flume FCode 32 Function or purpose (Aquaculture, Decorative Pool, Disposal, Evaporator, Swim Pool, Treatment, Unspecified, or Water Storage). ReservoirType String Yes Split policy Duplicate Field type Long integer Merge policy Default value 42001 Underground Conduit: Positional Accuracy = Definite 10 Unique identifier assigned by GNIS, length 10. GNIS_ID String Yes Resolution Resolution Merge policy Default value Split policy Duplicate Stage String Yes 32 Height of water surface is the basis for elevation. Code Description 42002 Underground Conduit: Positional Accuracy = Indefinite 65 Proper name, specific term, or expression by which a particular geographic entity is known. GNIS_Name String Yes 364 Foreshore Elevation ElevationRange Part of a seashore between high-water and low-water marks. Code Description Merge policy Default value
LengthKm Double Yes 44100 Rock 42003 Underground Conduit: Positional Accuracy = Approx 0 0 Length of linear feature, Albers Equal Area Conic, length 8. FCode 36400 Foreshore FCode 33400 Connector Code Description 44101 Rock: Relationship to Surface = Abovewater FType Long integer No 411 0 Three-digit integer value, unique identifier of a feature type. 39800 Lock Chamber Resolution Resolution 44102 Rock: Relationship to Surface = Underwater FCode Long integer Yes 41100 0 Five-digit integer value comprised of the feature type and combinations of characteristics and values. 403 Inundation Area Elevation ElevationRange Area of land subject to flooding. Visibility Filter Long integer No 0 VisibilityFilter Domain 0 Coded value domain Represents the appropriate use of individual features through scale. Does not reflect capture conditions. FCode 40308 Inundation FCode Coded value domain GLOBALID Global ID Wall FCode DamWeir FCode Table Flow table values are derived from the topologic connectivity of the Resolution Resolution
A natural or manmade embankment along the edge of a stream/river, canal/ditch, or Description Shape_Length Double Yes 0 0 Description 568 Levee Elevation ElevationRange NHDFlow geometric network and attribute values of NHDFlowline features. waterbody, that protects the surrounding land from flooding. Field type Long integer Field type Long integer Coded value domain FCode 56800 Levee FCode Split policy Duplicate Allow Prec- Split policy Duplicate Nonearthen Shore Subtypes of NHDLine Merge policy Default value Description
Resolution Field name Data type nulls Default value Domain ision Scale Length Resolution Merge policy Default value Coded value domain OBJECTID Object ID Code Description Subtype field FType 398 Lock Chamber Elevation ElevationRange Enclosure on a waterway used to raise/lower vessels as they pass from one level to another. Code Description Field type Long integer SeaOcean FCode
Default subtype 411 List of defined default values and domains for subtypes in this class 48300 Wall FCode 39800 Lock Chamber FCode 34300 Dam/Weir Split policy Duplicate DeltaLevel Long integer Yes 0 Description Direction Long integer Yes
Difference in level from first reach to second reach. Resolution Resolution 34305 Dam/Weir: Construction Material = Earthen Merge policy Default value Field type Long integer Subtype Subtype FlowDirection 0 Integer code for the direction of flow. Code Description Field name Default value Domain Definitions of features 431 Rapids Elevation ElevationRange Area of swift current in a stream or river, characterized by standing waves or by boulders and rocks. 34306 Dam/Weir: Construction Material = Nonearthen Code Description Split policy Duplicate From_Permanent_Identifier String No 40 Permanent_Identifier from which feature flows. Merge policy Default value Coded value domain Resolution Resolution FCode 43100 Rapids FCode 41100 Nonearthen Shore To_Permanent_Identifier String No 40 Permanent_Identifier to which feature flows. 318 Bridge Structure spanning and providing passage over a waterway, railway, or other obstacle. Code Description Wash FCode FCode 31800 Bridge FCode Resolution Resolution
44500 Sea Ocean Description ElevationRange Great body of salt water that covers much of the earth. Resolution Resolution 445 SeaOcean Elevation Coded value domain 343 DamWeir Barrier constructed to control the flow, or raise the level, of water. Field type Long integer FCode 34305 DameWeir FCode FCode 44500 SeaOcean FCode Estuary FCode Split policy Duplicate Resolution Resolution Resolution Resolution Description Merge policy Default value 362 Flume Open inclined artificial channel constructed of wood, metal, or concrete; generally elevated. ElevationRange Constructed passage for surplus water to run over or around a dam. Field type Long integer FCode 36200 Flume FCode 455 Spillway Elevation Coded value domain Code Description Split policy Duplicate Resolution Resolution FCode 45500 Spillway FCode Pipeline FCode 48400 Wash Structure that may be swung, drawn, or lowered, to block an entrance or passageway. 369 Gate Merge policy Default value Coded value domain FCode 36900 Gate FCode Resolution Resolution Description Code Description ElevationRange Body of flowing water. Field type Long integer SinkRise FCode Resolution 460 StreamRiver Elevation Resolution A natural or manmade embankment along the edge of a stream/river, canal/ditch, or waterbody, that protects the 49300 Estuary 568 Levee Split policy Duplicate Description FCode 56800 Levee FCode surrounding land from flooding. FCode 46006 StreamRiver FCode Table NHDFlowline Value Added Attributes are entirely derived from Merge policy Default value Field type Long integer Coded value domain Resolution Resolution Resolution Resolution
398 Lock Chamber Enclosure on a waterway used to raise or lower vessels as they pass from one level to another. NHDFlowlineVAA the NHDFlowline features and the Flow table values. Split policy Duplicate Water IntakeOutflow FCode Code Description ElevationRange Old river course inundated by an impounded water body. FCode 39800 Lock Chamber FCode 461 Submerged Stream Elevation Merge policy Default value Description Coded value domain 42800 Pipeline Allow Prec- Resolution Resolution FCode 46100 Submerged Stream FCode Code Description Field type Long integer Field name Data type nulls Default value Domain ision Scale Length Flume FCode 42816 Pipeline: Pipeline Type = Aqueduct 411 Nonearthen Shore Structure built of stone, concrete, or other building material, that borders a body of water. FCode 41100 Nonearthen Shore FCode Resolution Resolution 45000 Sink/Rise Split policy Duplicate Usually dry portion of a stream bed that contains water only Description 42801 Pipeline: Pipeline Type = Aqueduct; Relationship to Surface = At or Near OBJECTID Object ID Merge policy Default value
Permanent_Identifier String No Resolution Resolution 484 Wash Elevation ElevationRange during or after a local rainstorm or heavy snowmelt. Field type Long integer 42802 Pipeline: Pipeline Type = Aqueduct; Relationship to Surface = Elevated 431 Rapids 40 40-char GUID value that uniquely identifies the occurrence of each feature in The National Map. Area of swift current in a stream or river characterized by standing waves, or by boulders and rocks. Code Description FCode 43100 Rapids FCode FCode 48400 Wash FCode Split policy Duplicate 42803 Pipeline: Pipeline Type = Aqueduct; Relationship to Surface = Underground FDate Date Yes 0 0 8 Date of last feature modification. 48500 Water Intake/Outflow
StreamLevel Long integer Yes Resolution Merge policy Default value Resolution Resolution Resolution
42804 Pipeline: Pipeline Type = Aqueduct; Relationship to Surface = Underwater 434 Reef Drain_level of the downstream mainstem drain. 0 Chain of rocks or coral at, or near, the surface of the water. ElevationRange Structure through which water enters or exits a conduit. Code Description FCode 43400 Reef FCode 485 Water IntakeOutflow Elevation 42814 Pipeline: Pipeline Type = General Case Strahler stream order number for the drain. StreamOrder Long integer Yes 0 36200 Flume
FromNode Double Yes Resolution Resolution FCode 48500 Water IntakeOutflow FCode
42805 Pipeline: Pipeline Type = General Case; Relationship to Surface = At or Near 450 SinkRise 0 0 Nationally unique ID for the "from" node endpoint of the drain. Place at which a stream disappears underground or reappears at the surface in a karst area. Coded value domain FCode 45000 SinkRise FCode 42806 Pipeline: Pipeline Type = General Case; Relationship to Surface = Elevated Sounding Datum Line FCode Coded value domain ToNode Double Yes 0 0 Nationally unique ID for the "to" node endpoint of the drain. Resolution Resolution
503 Sounding Datum Line 42807 Pipeline: Pipeline Type = General Case; Relationship to Surface = Underground Description Waterfall FCode HydroSeq Double Yes 0 0 Nationally unique sequence number that places the reach in hydrologic sequence. Line representing the tidal datum to which bathymetric contours are referenced. FCode 50302 Sounding Datum Line FCode Coded value domain 42808 Pipeline: Pipeline Type = General Case; Relationship to Surface = Underwater Field type Long integer Description LevelPathID Double Yes 0 0 Hydro Sequence No. of downstream drain that is on the same level path as this drain according to the DFlow Table. Resolution Resolution Split policy Duplicate Field type Long integer 478 Tunnel Underground or underwater passage. Foreshore FCode 42815 Pipeline: Pipeline Type = Penstock PathLengthKM Double Yes 0 0 Distance from this drain pourpoint to its terminal drain's pourpoint according to the DFlow Table. FCode 47800 Tunnel FCode Merge policy Default value Split policy Duplicate Description 42809 Pipeline: Pipeline Type = Penstock; Relationship to Surface = At or Near TerminalPathID Double Yes 0 0 Hydrologic sequence number of terminal flowline. Merge policy Default value Resolution Resolution Upright structure of masonry, wood, plaster, or other building material serving to Code Description Field type Long integer 42810 Pipeline: Pipeline Type = Penstock; Relationship to Surface = Elevated 483 Wall ArbolateSumKM Double Yes 0 0 Sum of the lengths of all the drains that drain to the downstream end of the current drain. FCode 48300 Wall FCode enclose, divide, or protect an area. 50300 Sounding Datum Line Code Description Split policy Duplicate Geometry Polygon 42811 Pipeline: Pipeline Type = Penstock; Relationship to Surface = Underground DivergenceFlag Long integer Yes 0 If this drain is 1 branch of a flow split, 1=drain is main branch, 2=otherwise, 0= drain not a branch of flow split. Simple feature class Contains regions representing areal Merge policy Default value 50301 Sounding Datum Line: Positional Accuracy = Approx 48700 Waterfall Resolution Resolution Contains M values NoVertical or near vertical descent of water over a step or ledge in the bed of a river. 42812 Pipeline: Pipeline Type = Penstock; Relationship to Surface = Underwater 487 Waterfall StartFlag Long integer Yes 0 Set to '1' if the drain is a headwater drain according to the DFlow Table, otherwise '0'. FCode 48700 Waterfall FCode NHDWaterbody Contains Z values Yes NHD hydrographic waterbody features. Code Description 50302 Sounding Datum Line: Positional Accuracy = Definite
42813 Pipeline: Pipeline Type = Siphon TerminalFlag Long integer Yes 0 Set to '1' if drain is a terminal drain (flows into ocean, Great Lakes, Canada, Mex. or the ground) otherwise set to '0'. 36400 Foreshore DnLevel Long integer Yes 42820 Pipeline: Pipeline Type = Stormwater 0 Stream level of drain. Allow Prec-
42821 Pipeline: Pipeline Type = Stormwater; Relationship to Surface = At or Near ThinnerCode Long integer Yes 0 Field name Data type nulls Default value Domain ision Scale Length Ordinal value designed to allow selection of progressively more dense networks. Least dense network=1. Coded value domain Geometry Polyline Simple feature class Coded value domain 42822 Pipeline: Pipeline Type = Stormwater; Relationship to Surface = Elevated UpLevelPathId Double Yes 0 0 Contains M values Yes Consists of routes that make up a linear LevelPathID of upstream mainstream drain. OBJECTID Object ID Well FCode NHDFlowline Contains Z values Gaging Station FCode 42823 Pipeline: Pipeline Type = Stormwater; Relationship to Surface = Underground UpHydroSeq Double Yes 0 0 Hydro Sequence No. of upstream mainstem drain. Description UpMinHydroSeq Double Yes
Shape Geometry Yes Yes surface water drainage network. Description 42824 Pipeline: Pipeline Type = Stormwater; Relationship to Surface = Underwater Field type Long integer 0 0 Minimum Hydro Sequence No. of all upstream drains. 40 40-char GUID value that uniquely identifies the occurrence of each feature in The National Map. Permanent_Identifier String NoAllow Prec- Field type Long integer Split policy Duplicate DnLevelPathID Double Yes 0 0 Level path ID of downstream drain. FDate Date No 0 0 8 Date of last feature modification. Field name Data type nulls Default value Domain ision Scale Length Split policy Duplicate Merge policy Default value DnMinHydroSeq Double Yes 0 0 At a divergence, the Hydro sequence number of the minor downstream drain. Code for source resolution: 1 = Local resolution, 2 = High resolution, 3 = Medium resolution. Merge policy Default value Resolution Long integer No Resolution 0OBJECTID Object ID Code Description DnDrainCount Long integer Yes 0 Number of drains immediately downstream. 10 Unique identifier assigned by GNIS, length 10. Code Description 48800 Well GNIS_ID String Yes Shape Geometry Yes GLOBALID Global ID 65 Proper name, specific term, or expression by which a particular geographic entity is known, length 65. 36700 Gaging Station
Permanent_Identifier String No GNIS_Name String Yes
40 40-char GUID value that uniquely identifies the occurrence of each feature in The National Map. Area of areal features, Albers Equal Area Conic, length 8. 36701 Gaging Station: Gaging Station Status = Active; Record = Continuous
FDate Date No AreaSqKm Double Yes 0 0
0 0 8 Date of last feature modification. Elevation, in meters, of water surfaces where water pools are encoded for a few features. Resolution Long integer No
Elevation Double Yes ElevationRange 0 0 Code for source resolution: 1=Local resolution, 2=High resolution, 3=Medium resolution. Resolution 0 Unique identifier composed of two parts, first eight digits is subbasin code as defined by FIPS 103, ReachCode String Yes 14Table Only NHDFlowline features can next six digits is randomly assigned sequential number unique within a Cataloging Unit, length 14. 10 Unique identifier assigned by GNIS, length 10. GNIS_ID String Yes FType Long integer No 390 0 Three-digit integer value, unique identifier of a feature type.
FCode Long integer Yes 39004 65 Proper name, specific term, or expression by which a particular geographic entity is known, length 65. NHDVerticalRelationship participate in vertical relationships. GNIS_Name String Yes 0 Five-digit integer value comprised of the feature type and combinations of characteristics and values. Length of linear feature, Albers Equal Area Conic, length 8. LengthKm Double Yes 0 0 Unique identifier composed of two parts. The first eight digits is the subbasin code as defined by FIPS 103. The next
Allow Prec- VisibilityFilter Long integer No 0 VisibilityFilter Domain 0 Represents the appropriate use of individual features through scale. Does not reflect capture conditions. Field name Data type nulls Default value Domain ision Scale Length ReachCode String Yes 14 six digits are randomly assigned, sequential numbers that are unique within a Cataloging Unit, length 14. Shape_Area Double Yes 0 0 OBJECTID Object ID FlowDir Long integer No 0 HydroFlowDirections 0 Direction of flow relative to coordinate order, length 4. GLOBALID Global ID
Permanent_Identifier String No WBArea_Permanent_Identifier String Yes 40 Permanent_Identifier of the waterbody through which the Flowline (Artificial Path) flows. 40 40-char GUID value that uniquely identifies the occurrence of each feature in The National Map. Non-FCode Domains Three digit integer value, unique identifier of a feature type. FType Long integer No 460 0Above_Permanent_Identifier String No 40 Permanent Identifier of feature above vertical offset.
FCode Long integer Yes 46003 0Below_Permanent_Identifier String No Five-digit integer value comprised of the feature type and combinations of characteristics and values. 40 Permanent Identifier of feature below vertical offset. Coded value domain GLOBALID Global ID Subtypes of NHDWaterbody MainPath Long integer No 0 MainPath Domain 0 Area Event Type
InNetwork Long integer Yes 0 NoYes Domain 0 Subtype field FType Description Coded value domain Coded value domain Default subtype 390 List of defined default values and domains for subtypes in this class Field type Long integer
Split policy Duplicate Represents the appropriate use of individual features through scale. Does not reflect capture conditions. VisibilityFilter Long integer No 0 VisibilityFilter Domain 0 Event Feature Class Reference HydrologicUnitSource
Subtype Subtype Shape_Length Double Yes 0 0 Coded value domain Merge policy Default value Description Description Code Description Field name Default value Domain Definitions of features GLOBALID Global ID Field type Long integer Field type Long integer Organization Type Code Description Split policy Duplicate Split policy Default value Resolution Resolution Description Table Contains associations of Permanent_Identifiers Lower end of a river, or a semi-enclosed coastal body of water with access to the open ocean, ElevationRange Merge policy Default value Merge policy Default value Field type Long integer 493 Estuary Elevation which is affected by the tides and where fresh and salt water mix. ExternalCrosswalk to external source identifiers. (1:M) Code Description Code Description Split policy Duplicate FCode 49300 Estuary FCode Subtypes of NHDFlowline Coded value domain
Coded value domain 1 NHDArea 0 Watershed Boundaries Dataset Merge policy Default value Allow Prec- Resolution Resolution VisibilityFilter Domain Subtype field FType Field name Data type nulls Default value Domain ision Scale Length Line Event Type 2 NHDFlowline 1 NHD Code Description 378 Ice Mass Elevation ElevationRange A field of ice, formed in regions of perennial frost. Description VisibilityFilter OBJECTID Object ID Default subtype 460 List of defined default values and domains for subtypes in this class 0 Unknown Description 3 NHDLine 2 Other Field type Domain FCode 37800 Ice Mass FCode Subtype Subtype Field type Long integer 40 40-char GUID value that uniquely identifies the occurrence of each feature in The National Map. 1 International Split policy Long integer Permanent_Identifier String No 4 NHDPoint ExternalID String Yes
Code Description Field name Default value Domain Definitions of features Resolution Resolution Split policy Duplicate 2 Federal Merge policy Duplicate 40 Uniquely identifies the occurrence of each feature in the source dataset. 5 NHDWaterbody ElevationRange Standing body of water with a predominantly natural shoreline surrounded by land. Merge policy Default value 390 LakePond Elevation Default value Resolution Resolution 50 Field name in the external source dataset that contains the unique IDs. 3 Tribal Code Description ExternalIDName String Yes Coded value domain FCode 39004 LakePond FCode 558 Artificial Path Code Description FlowDir 0 HydroFlowDirections Abstraction to facilitate hydrologic modeling through open water bodies and along coastal and 4 State 0 Unspecified 130 Name of the organization or individual who developed the external dataset/features. ExternalIDOriginator String Yes MainPath Domain Resolution Resolution FCode 55800 Artificial Path FCode Great Lakes shorelines and to act as a surrogate for lakes and other water bodies. 5 Regional 4800 Approximately 1:4,800 or Larger Scale OrganizationType Long integer Yes Organization Type 0 Administrative level of the organization who developed the external dataset/features. Description MainPath Domain 361 Playa Elevation ElevationRange Resolution Resolution Coded value domain Field type Long integer 6 County 12500 Approximately 1:12,500 or Larger Scale Flat area at the lowest part of an undrained desert basin, generally devoid of vegetation. ExternalIDEntryDate Date Yes Coded value domain 0 0 8 LoadDate of ExternalID record. FCode 36100 Playa FCode FlowDir 0 HydroFlowDirections Artificial open waterway constructed to transport water, to irrigate or drain land, to connect 336 CanalDitch Point Event Type FlowDirection Split policy Duplicate 7 Municipal 24000 Approximately 1:24,000 or Larger Scale GLOBALID Global ID two or more bodies of water, or to serve as a waterway for watercraft. Resolution Resolution Merge policy Default value FCode 33600 CanalDitch FCode 8 Private 50000 Approximately 1:50,000 or Larger Scale Description Description Point Event Type ElevationRange Constructed basin formed to contain water or other liquids. 436 Reservoir Elevation Field type Long integer Code Description Resolution Resolution 100000 Approximately 1:100,000 or Larger Scale 566 Coastline
Field type Domain FCode 43600 Reservoir FCode Split policy Long integer FlowDir 0 HydroFlowDirections Line that follows the main outline of the land, including bays, but crosses rivers at their mouth. Split policy Default value 0 Unspecified 150000 Approximately 1:150,000 or Larger Scale
Resolution Merge policy Duplicate Merge policy Default value In the NHD, the outline of selected coastal islands are included as part of the coastline. Resolution 1 Confluence Main FCode 56600 Coastline FCode 250000 Approximately 1:250,000 or Larger Scale Noncultivated, vegetated area that is inundated or saturated for a significant part of the year. Default value 466 SwampMarsh Elevation ElevationRange Code Description Code Description 2 Divergence Main Resolution Resolution 500000 Approximately 1:500,000 or Larger Scale The vegetation is adapted for life in saturated soil conditions. Coded value domain FCode 46600 SwampMarsh FCode 57001 Streamgage: Streamgage Status = Active; Record = Continuous 709 In 3 Both Confluence and Divergence 334 Connector FlowDir 0 HydroFlowDirections Known, but unspecific, connection between two nonadjacent network segments. 1000000 Approximately 1,000,000 or Larger Scale Resolution 57002 Streamgage: Streamgage Status = Active; Record = Partial 712 NetworkStart FCode 33400 Connector FCode 2000000 Approximately 1:2,000,000 or Larger Scale 57003 Streamgage: Streamgage Status = Inactive 713 NetworkEnd Description Resolution Resolution 5000000 Approximately 1:5,000,000 or Larger Scale Field type Long integer Closed conduit with pumps, valves, and control devices, for conveying fluids, gasses, or 57004 Water Quality Station 714 Non-Flowing 428 Pipeline FlowDir 0 HydroFlowDirections Split policy Duplicate 57100 Dam finely divided solids. Coded value domain
Merge policy Default value FCode 42805 Pipeline FCode Processing NoYes Domain 57201 Flow Alteration = Addition Resolution Resolution Code Description Description NoYes Domain 57202 Flow Alteration = Removal 1 Local Coded value domain 460 StreamRiver FlowDir 0 HydroFlowDirections Body of flowing water. Field type Long integer Table Parameters used for 57203 Flow Alteration = Unknown HydroFlowDirections Duplicate 2 High FCode 46006 StreamRiver FCode Split policy NHDProcessingParameters 57300 Hydrologic Unit Outlet Description Merge policy Default value 3 Medium processing data. Resolution Resolution Field type Long integer Allow Prec- Code Description FlowDir 0 HydroFlowDirections Underground passage of surface water. 420 Underground Conduit Split policy Duplicate Field name Data type nulls Default value Domain ision Scale Length 0 NoFCode 42000 Underground Conduit FCode Merge policy Default value OBJECTID Object ID 1 Yes Range domain Description ParameterName String No 24ParameterName Domain ElevationRange
Code 0 Uninitialized ParameterValue String No 100 Description 1 WithDigitized
Field type Double Split policy Default value
Merge policy Default value Minimum value Maximum value
Relationship class -400 9000 Table NHDStatus is used to track data changes for Relationship class NHDAreaToMeta NHDAreaEventFCToMeta NHDStatus transaction uploads to the central depository. One to many Event Feature Classes One to many Allow Prec-
Field name Data type nulls Default value Domain ision Scale Length Geometry Polygon OBJECTID Object ID Simple feature class No Relationship class Contains M values Relationship class NHDFlowlineToMeta ID String No 0 40 NHDAreaEventFC Contains Z values No Relationship class NHDPointToMeta
NHDLineEventFCToMeta One to many 40Permanent_Identifier String No 0 Status Long integer No Status 0 One to many
One to many Allow Prec-Field name Data type nulls Default value Domain ision Scale Length
Relationship class Shape Geometry Yes NHDLineToMeta Table OBJECTID Object ID Relationship class One to many NHDMetadata Table Table used to maintain links for backward Permanent_Identifier String No 40 Relationship class NHDPointEventFCToMeta NHDWaterbodyToMeta NHDReachCodeMaintenance compatibility with FOD-based systems. EventDate Date Yes 0 0 8
One to many Allow Prec-One to many ReachCode String No 14Allow Prec- Field name Data type nulls Default value Domain ision Scale Length Field name Data type nulls Default value Domain ision Scale Length ReachSMDate Date Yes 0 0 8 OBJECTID Object ID ReachResolution Long integer No Resolution 0
Meta_ProcessID String Yes OBJECTID Object ID
40 Unique permanent ID value which uniquely identifies a process in The National Map. 40 40-char GUID value that uniquely identifies the occurrence of each feature in The National Map. Feature_Permanent_Identifier String Yes Unique identifier composed of two parts, first eight digits = subbasin code as defined by FIPS 103, and next
Permanent_Identifier String No 4000 Explanation of the process, including parameters or tolerances. ProcessDescription String NoReachCode String No 14 FeatureClassRef Long integer Yes Event Feature Class Reference 0
six digits = random-assigned sequential number unique within a Cataloguing Unit. 0 0 8 Date when the process was completed. ProcessDate Date NoReachSMDate Date Yes 0 0 8 Source_Originator String Yes 130Reach Spatial Modification Date. 1800 Explanation of entities and assignments of values in dataset. AttributeAccuracyreport String Yes
40
FeatureResolution Long integer No Resolution 0 Source_DataDesc String Yes 100 LogicalConsistencyReport String Yes Code of source resolution: 1=Local resolution, 2=High resolution, 3=Medium Resolution. 1000 Explanation of fidelity of relationships in dataset, and tests used. GNIS_ID String Yes 10 Source_FeatureID String Yes 100
CompletenessReport String Yes Unique identifier assigned by GNIS. 2400 Information about omissions, criteria, definitions used to derive dataset. GNIS_Name String Yes 100 FeatureDetailURL String Yes 255 GLOBALID Global ID
Proper name, specific term, or expression by which a particular geographic entity is known. HorizPositionalAccuracyReport String Yes 3100 Horizontal coordinate measurements and description of tests used. EventType Long integer No Area Event Type 0 VertPositionalAccuracyReport String Yes 3100 Vertical coordinate measurements and description of tests used. Shape_Length Double Yes 0 0 Metadata
100 Name of the metadata standard used to document the dataset. MetadataStandardName String Yes Shape_Area Double Yes 0 0 MetadataStandardVersion String Yes 40 Identification of the version of the metadata standard used to document the dataset. GLOBALID Global ID
MetadataDate Date Yes 0 0 8 Date the metadata was last created or updated. In the NHD geodatamodel, feature-level metadata 4000 Recognition of those who contributed to the dataset. DataSetCredit String Yes Table 100 Name or organization to which type of contact applies. ContactOrganization String Yes information is included in three tables: NHDReachCrossReference Geometry Polyline 40 Information provided about the address, i.e.; mailing, physical, etc.
Contains M values No AddressType String Yes Simple feature class NHDFeatureToMetadata, NHDMetdata, and Allow Prec- 100 Address line for the address. Address String Yes NHDLineEventFC Contains Z values NoField name Data type nulls Default value Domain ision Scale Length City String Yes 40 City of the address. NHDSourceCitation. The NHDFeatureToMetadata OBJECTID Object ID 30 State or province of the address.
OldReachCode String Yes StateOrProvince String Yes
17 Reach code prior to change. table links the features to their instances of 20 ZIP or other postal code of the address. PostalCode String Yes Allow Prec-0 0 8 Date when OldReachCode was originally assigned (yyyymmdd). OldReachDate Date Yes 40 Telephone number to reach organization or individual. ContactVoiceTelephone String Yes Field name Data type nulls Default value Domain ision Scale Length metadata. The NHDMetadata table contains the NewReachCode String Yes 17 Reach code after change. 120 Supplemental instructions to contact organization or individual
NewReachDate Date Yes ContactInstructions String Yes Shape Geometry Yes
0 0 8 Date when NewReachCode was assigned (yyyymmdd). ContactEmailAddress String Yes 40 E-mail address to reach contact organization or individual. OldUPMI String Yes
general metadata characteristics for each OBJECTID Object ID 5 Upstream Marker Index of Old Reach (RF-3-Alpha Only). GLOBALID Global ID Permanent_Identifier String No 40 collection of features. The NHDSourceCitation 5 Upstream Marker Index of New Reach (RF-3-Alpha Only). NewUPMI String Yes
EventDate Date Yes 0 0 8ChangeCode Domain 4 Type of change to the reach feature. ChangeCode String Yes
ReachCode String No 14 table details the source associated with each Process String Yes Process Domain 6 Process where the change occurred. ReachSMDate Date Yes 0 0 8 For more information on the National Hydrography Dataset (NHD) and the ReachFileVersion Domain 10 Reach File Version in which change became effective. ReachFileVersion String Yes metadata instance. ReachResolution Long integer No Resolution 08 Hydrologic Unit of feature prior to migration. OldHUCode String Yes
Feature_Permanent_Identifier String Yes 408 Hydrologic Unit of feature after migration. NewHUCode String Yes FeatureClassRef Long integer Yes Event Feature Class Reference 0 Watershed Boundary Dataset (WBD), including the latest news, user resources, GLOBALID Global ID
Source_Originator String Yes 130 Source_DataDesc String Yes 100 Source_FeatureID String Yes 100 tools, tutorials and webinars, and to download NHD and WBD datasets, please visit: FeatureDetailURL String Yes 255
FMeasure Double No Relationship class 0 0 NHDMetadataHasSourceCitation TMeasure Double No 0 0
EventType Long integer No Line Event Type 0 One to many http://nhd.usgs.gov EventOffset Double Yes 0 0 Shape_Length Double Yes 0 0 Table
Coded value domain GLOBALID Global ID NHDFeatureToMetadata ChangeCode Domain Allow Prec-Description Field type String
Field name Data type nulls Default value Domain ision Scale Length Processing Domains OBJECTID Object ID Split policy Duplicate
Merge policy Default value Coded value domain Permanent_Identifier String Yes 40Geometry Point Simple feature class Meta_ProcessID String Yes Contains M values No 40Code Description Status NHDPointEventFC Contains Z values No To learn about NHDPlus, an integrated suite of geospatial products that builds upon 11 Old reach to new reach GLOBALID Global ID Description Coded value domain Coded value domain Field type Long integer 1P 1P Old reach to part of new reach ParameterName Domain Process Domain Split policy Default value P1 P1 Part of old reach to new reach Description Description Merge policy Default value Allow Prec-A A Add new reach and extends the capabilities of the NHD, and the WBD, and the National Elevation Table Field type String Field type String Field name Data type nulls Default value Domain ision Scale Length Code Description D D Delete old reach Split policy Duplicate Split policy Duplicate NHDSourceCitation 1 Add Feature Shape Geometry Yes Merge policy Default value Merge policy Default value PP PP Part of old reach to part of new reach Allow Prec-2 Modify Feature Attribute OBJECTID Object ID 1M 1M (historic) Old reach split to multiple new reaches Code Description Code Description Field name Data type nulls Default value Domain ision Scale Length Dataset (NED) data, please visit: 3 Modify Feature Geometry Version Version Permanent_Identifier String No 40AVEDIT AVEDIT M1 M1 (historic) Mult old reaches merged to single new reach Relationship class OBJECTID Object ID 5 Delete Feature Resolution Resolution EventDate Date Yes 0 0 8GDBEDT GDBEDT NHDMetaToFeature Source_DatasetID String Yes 40 Unique permanent ID value which uniquely identifies a source dataset used in The National Map. 6 Delete Relationship Processing_Organization Processing_Organization 100_24 100_24 ReachCode String No 14Coded value domain Title String Yes 255 Name by which the dataset is known. One to many 7 Add Metadata SchemaVersion SchemaVersion 24_loc 24_loc ReachSMDate Date Yes 0 0 8ReachFileVersion Domain SourceCitationAbbreviation String Yes 255 Short form alias for source citation. 8 Modify VAA ReachResolution Long integer No Resolution 0Work_Type Work Type AK2FOD AK2FOD (historic) Description http://www.epa.gov/waterdata/Originator String Yes 400 Name of an organization or individual that developed the dataset. JTXWorkflow JTX Workflow Type ARCUPD ARCUPD (historic) 9 Add Event Feature_Permanent_Identifier String Yes 40Field type String PublicationDate Date Yes 0 0 8 Date the dataset is published or made available for release. 10 Modify Event Split policy Duplicate Jobid JTX Job Id FODGDB FODGDB (historic) FeatureClassRef Long integer Yes Event Feature Class Reference 0 BeginningDate Date Yes 0 0 8 First year of the event (if Range_of_Dates applies). Merge policy Default value ReachFileVersion Reach File Version FTIEDT FTIEDT (historic) 11 Delete Event Source_Originator String Yes 130 EndingDate Date Yes 0 0 8 Last year of the event (if Range_of_Dates applies). Code Description WBDSchemaVersion WBDSchemaVersion FTIFLO FTIFLO (historic) 12 Modify VAA All Source_DataDesc String Yes 100 SourceContribution String Yes 255 Brief statement identifying information contributed by source to dataset. M002.00000 M002.00000 GEO Medium Resolution ReleaseBuild ReleaseBuild GDBCVN GDBCVN (historic) 13 Add Relationship Source_FeatureID String Yes 100 SourceScaleDenominator Long integer Yes 0 Denomination of representative fraction on a map. H002.00000 H002.00000 GEO High Resolution 14 Add Metadata All (historic) FeatureDetailURL String Yes 255SourceDB SourceDB NHDVIS NHDVIS (historic) TypeOfSourceMedia String Yes 255 The medium of the source dataset, i.e. paper, CD-ROM, online, etc. L002.00000 L002.00000 GEO Local Resolution 15 Add FeatureToMetadata All (historic) Measure Double No 0 0PNWNHD PNWNHD (historic) 0 0 8 The year (if Single_Date applies). CalendarDate Date Yes TBD TBD 16 Add FeatureToMeta Relationship EventOffset Double Yes 0 0 The basis on which the source time period of content information of the RF3DBL RF3DBL (historic) SourceCurrentnessReference String Yes 255M001.00000 M001.00000 (historic) FOD Medium Resolution 17 Create External Crosswalk source data set is determined. EventType Long integer No Point Event Type 0 Meta_ProcessID String Yes 40 Unique permanent ID value which uniquely identifies a process used in The National Map. H001.00000 H001.00000 (historic) FOD High Resolution 18 Modify External Crosswalk GLOBALID Global ID
GLOBALID Global ID L001.00000 L001.00000 (historic) FOD Low Resolution 19 Process External Crosswalk All M000.00000 M000.00000 (historic) Pre-FOD
11
