GIS Data Catalog

Open Conveyance Ditch and Natural Drainage

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Summary

Open Conveyance features convey stormwater along a channel that is not enclosed.

Description

Components of Open Conveyance (Ditch and Natural Drainage)--Ditch: A long narrow constructed channel.--Natural Drainage: Non-engineered, non-constructed flow paths following existing land contours.

When a stream isn’t mapped and the natural drainage system (stream) may be confused with a ditch that is part of King County’s MS4, the stream is mapped as Natural Drainage to prevent future confusion.

Layer information

Layer Name	sw_conv_ditchnaturaldrainage_line
Subject Category	Utilities
Title	Open Conveyance Ditch and Natural Drainage
Feature Count	44037
Feature Type	Line
Next Update	Continually
Spatial reference	EPSG:2926
Control ID	2509
Place Keywords	Pacific NW, King County, WA, Washington State
Theme Keywords	Utility, MS4, Stormwater, Drainage, Municipal Separate Stormwater Sewer System, NPDES Municipal Stormwater Permit
Supplemental Information	None

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Attribute information

OBJECTID From Esri	Description Internal feature number. Domain Sequential unique whole numbers that are automatically generated.
Shape From King County	Description Feature geometry. Domain Coordinates defining the features.
DBAssetID From SOP Chapter 2: Database Design	Description DBAssetID is the unique identifier that is used to tie to Cityworks, MIS, or some other database. The DBAssetID is unique for each feature class and is generated by a script that runs nightly. Users should not modify the DBAssetID. Domain Not Found
Component From Puget Sound Regional Stormwater Infrastructure Framework	Description Within the Puget Sound Stormwater Infrastructure Framework, Component is the broadest classification for a set of structures with a similar Function and Function Type. Domain Ditch, Natural Drainage
DitchWidth From SOP Chapter 2: Database Design	Description The average estimated extent of a ditch from side to side. Domain Not Found
DitchDepth From SOP Chapter 2: Database Design	Description The average estimated extent of a ditch from top to bottom. Domain Not Found
MeasSource From SOP Chapter 2: Database Design	Description MeasSource is the source of the DitchWidth and DitchDepth. Domain Field estimate, Field measurement
Material From SOP Chapter 2: Database Design	Description Material tracks the primary material that the Connect feature is constructed of. Domain Asphalt - Asphalt Concrete - Concrete Grass - Grass Ground - Ground Riprap - Riprap
FlowDirection From SOP Chapter 2: Database Design	Description Flow direction tracks the function of the pipe in terms of direction of conveyance. Domain Bi-Directional, Downflow, Upflow
OverflowType No Source Noted	Description Not Found Domain Not Found
Intent From SOP Chapter 2: Database Design	Description Intent tracks whether the infrastructure was designed primarily to convey stormwater or a natural water body. Domain Convey natural water body, Convey stormwater
OwnerEntity From SOP Chapter 2: Database Design	Description OwnerEntity tracks the owner of the particular feature. Domain FMD, Incorporation, Parks, Private, Roads, WLRD
Jurisdiction From SOP Chapter 2: Database Design	Description Jurisdiction tracks the jurisdiction that governs the land that the asset resides in. Domain Bellevue, Black Diamond, Bothell, Carnation, Duvall, Enumclaw, Kenmore, Kent, King County, Kirkland, Lake Forest Park, Maple Valley, North Bend, Redmond, Sammamish, Snoqualmie, Woodinville
KingCountyMS4 No Source Noted	Description Not Found Domain Not Found
XYSource From SOP Chapter 2: Database Design	Description XYSource tracks the method in which the geographic location of the asset was recorded. Domain GPS, Picked from aerial, Plans
FieldVisitDate From SOP Chapter 2: Database Design	Description FieldVisiteDate tracks the date that staff last visited the feature in the field. Domain Not Found
LastEditDate From SOP Chapter 2: Database Design	Description LastEditDate tracks the date that staff last edited the feature. Domain Not Found
DataStage From SOP Chapter 2: Database Design	Description DataStage tracks the status of the data as it moves through the QAQC process. Domain Acquire, Process
CurrentStatus From SOP Chapter 2: Database Design	Description CurrentStatus tracks the status of the data as it moves through the lifecycle of an asset. Domain Active, Delete, Retired
DataSource From SOP Chapter 2: Database Design	Description DataSource tracks the group, program, or process that added the data. Domain Roads Digitized, Roads NPDES Mapping, Roads RNIS Mapping, SWSS Mapping
FacilityID From SOP Chapter 2: Database Design	Description FacilityID tracks the FacilityID number that the feature is a part of. Domain Not Found
PlanLink From SOP Chapter 2: Database Design	Description When digital plans are available, PlanLink provides a hyperlink to plan files. Domain Not Found
GlobalID From King County	Description GlobalID is a 36 character string that ArcGIS uses to uniquely identify features or table rows within a geodatabase and across geodatabases. Domain Not Found
AssetID From SOP Chapter 2: Database Design	Description AssetID is the unique identifier that is used to tie to Cityworks, MIS, or some other database. The AssetID is unique for each feature class and is generated by a script that runs nightly. Users should not modify the AssetID. Domain Not Found
PAA From SOP Chapter 2: Database Design	Description PAA tracks which Potential Annexation Area an asset intersects, if applicable. Domain Not Found
Shape.STLength() From SQL Server	Description Returns the total length of the elements in a geometry instance. Domain Double

Contact information

Maintained by	DNRP - Water and Land Resources
Primary	Harkeerat Kang Harkeerat.Kang@kingcounty.gov

Terms of Use

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