20220928
08151400
1.0
FALSE
DischargePoint_Clip
002
-117498300.000000
2512003.625566
-98850300.000000
1344192.122098
1
Projected
GCS_North_American_1983_HARN
Linear Unit: Foot_US (0.304801)
NAD_1983_HARN_StatePlane_Washington_South_FIPS_4602_Feet
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FGDC CSDGM Metadata
20220915
16295300
20220915
16295300
FGDC
150000000
5000
Version 6.2 (Build 9200) ; Esri ArcGIS 10.7.1.11595
WSDOT Stormwater Discharge Points
Washington State Department of Transportation (WSDOT), Environmental Services Office (ESO)
The Stormwater Features Inventory Database (SFID) was developed in response to WSDOT’s 2009 NPDES Municipal Stormwater Permit, issued by the Washington State Department of Ecology. Among other elements, the permit requires WSDOT to maintain an ongoing storm sewer system mapping program for areas within the permit’s jurisdictional boundaries
<DIV STYLE="text-align:Left;"><DIV><DIV><P STYLE="margin:0 0 14 0;"><SPAN><SPAN>This feature class contains WSDOT’s stormwater discharge points. A stormwater discharge point is the </SPAN></SPAN><SPAN><SPAN>point at which WSDOT loses, or obtains, jurisdictional responsibility of concentrated stormwater from a constructed stormwater conveyance feature. This includes locations where stormwater infiltrates into the ground at the end of a constructed stormwater conveyance, or enters surface waters of the state through a constructed stormwater conveyance. </SPAN></SPAN><SPAN>The majority of the data collected so far are within the Phase I and Phase II 2009 NPDES Municipal Stormwater Permit Areas. Additional data were collected during stormwater retrofit review and mapping in Total Maximum Daily Load areas that are outside of the permit area.</SPAN></P><P STYLE="margin:0 0 14 0;"><SPAN>This feature class has five subtypes: Incoming, Land Surface, Managed System, Subsurface, and Surface Water.</SPAN></P><P><SPAN /></P></DIV></DIV></DIV>
Stormwater Features Inventory activities are managed through WSDOT ESO's Stormwater and Watersheds Program. Associated operational procedures are administered by the Stormwater Features Inventory Group. Associated technical systems are administered by ESO's Environmental Information Program, as well as WSDOT Information Technology’s Data Management Services, with direction from the Stormwater and Watersheds Program.
Stormwater Features Inventory Database: Feature and Attribute Definitions
http://www.wsdot.wa.gov/NR/rdonlyres/E5988413-5AA0-434F-897F-F745A53F4A0C/0/SFID_Definitions.pdf
<DIV STYLE="text-align:Left;"><DIV><DIV><DIV STYLE="font-size:12pt"><P><SPAN>None</SPAN></P></DIV></DIV></DIV></DIV>
Cory Simon
WSDOT ESO Stormwater and Watersheds Program
Stormwater Features Inventory Coordinator
SimonC@wsdot.wa.gov
Tumwater
WA
360-570-2589
360-570-6633
M - Th 6:00 - 4:30
WSDOT ESO
stormwater
discharge point
NPDES Municipal Stormwater permit
outfall
discharge
connections
MS4 connections
Managed System Discharge
Surface Water Discharge
Land Surface Discharge
Subsurface Discharge
Incoming Discharge
MS4
Municipal Separate Storm Sewer System
Washington State
WA
None
1
-180.000000
180.000000
49.018113
-66.225925
-100000.000000
4504.378589
File Geodatabase Feature Class
Tim Hall
WSDOT ESO Stormwater and Watersheds Program
Stormwater Features/Data Steward
HallT@wsdot.wa.gov
360-570-2463
360-570-6633
M - Th 6:00 - 4:30
dataset
EPSG
8.9.3(9.0.0)
0
Simple
FALSE
0
TRUE
FALSE
DischargePoint_Clip
Feature Class
0
OBJECTID
OBJECTID
OID
4
0
0
Internal feature number.
ESRI
Sequential unique whole numbers that are automatically generated.
WSDOTownership
WSDOTownership
String
8
0
0
Indicates if WSDOT is the owner and/or operator of a feature. The final determination regarding ownership will rest with the WSDOT Real Estate Services office and/or Washington State Attorney General. (See also “City Streets as Part of State Highways.”)
WSDOT Stormwater Features Inventory Program
Yes
This feature is owned and/or Operated by WSDOT.
WSDOT Stormwater Features Inventory Program
No
This feature is not owned and/or Operated by WSDOT
WSDOT Stormwater Features Inventory Program
Unknown
At the time of data collection, it is unclear who is the owner/operator of the feature
WSDOT Stormwater Features Inventory Program
WSDOTresponsible
WSDOTresponsible
String
8
0
0
Indicates whether WSDOT has responsibility for maintaining a feature, regardless of ownership. The final determination regarding responsibility will rest with the WSDOT Real Estate Services office, WSDOT Maintenance and Operations, and/or Washington State Attorney General. (See also “City Streets as Part of State Highways.”)
WSDOT Stormwater Features Inventory Program
Yes
WSDOT is responsible for maintaining this Feature
WSDOT Stormwater Features Inventory Program
No
WSDOT is not responsible for maintaining this feature.
WSDOT Stormwater Features Inventory Program
Unknown
At the time of data collection, it is unclear who is responsible for maintaining this feature.
WSDOT Stormwater Features Inventory Program
AsBuiltPlanNum
AsBuiltPlanNum
String
50
0
0
The as-built plan number associated with the project where the feature first appears.
WSDOT Stormwater Features Inventory Program
ContractNum
ContractNum
String
50
0
0
The contract plan number associated with the project where the feature was constructed or first appears.
WSDOT Stormwater Features Inventory Program
DesignStandardRefDoc
DesignStandardRefDoc
String
80
0
0
The design reference document/manual used to construct the feature as indicated in the Hydraulic Report.
Design Manual
WSDOT Design Manual, M 22-01
WSDOT Stormwater Features Inventory Program
Highway Runoff Manual
WSDOT Highway Runoff Manual, M 31-16
WSDOT Stormwater Features Inventory Program
Hydraulics Manual
WSDOT Hydraulics Manual, M 23-03
WSDOT Stormwater Features Inventory Program
Standard Plans
WSDOT Standard Plans for Road, Bridge, and Municipal Construction, M 21-01
WSDOT Stormwater Features Inventory Program
Standard Specifications
WSDOT Standard Specifications for Road, Bridge, and Municipal Construction, M 41-10
WSDOT Stormwater Features Inventory Program
External Party
The reference document was generated by a non-WSDOT third party.
WSDOT Stormwater Features Inventory Program
WSDOT Stormwater Features Inventory Program
LandUse
LandUse
String
50
0
0
A WSDOT-specific description of the primary use for land on which the feature occurs.
Airport
Use designated for WSDOT-owned or -operated airport or airport facilities.
WSDOT Stormwater Features Inventory Program
Ferry Terminal
Use designated for WSDOT-owned or -operated ferry terminals or marine facilities.
WSDOT Stormwater Features Inventory Program
Highway
Use designated for WSDOT-owned or -operated highways.
WSDOT Stormwater Features Inventory Program
Maintenance Area
Use designated for WSDOT-owned or -operated maintenance facilities.
WSDOT Stormwater Features Inventory Program
Park and Ride
Use designated for WSDOT-owned or -operated park and ride facilities.
WSDOT Stormwater Features Inventory Program
Railroad
Use designated for WSDOT-owned or -operated railroad or rail facilities.
WSDOT Stormwater Features Inventory Program
Rest Area
Use designated for WSDOT-owned or -operated highway rest areas.
WSDOT Stormwater Features Inventory Program
Stockpile
Use designated for WSDOT-owned or -operated stockpile or borrow sites.
WSDOT Stormwater Features Inventory Program
WSDOT Stormwater Features Inventory Program
WaterFlowDirection
WaterFlowDirection
String
8
0
0
Primary direction, relative to true north, that water flows through the feature. For a point feature, this is the direction water flows out of the structure. In the event of bidirectional flow (e.g., tidal influence or flood conditions), the feature will typically have a primary flow direction during periods of ebb tide or low flow.
N
North (bearing 337.5-022.5)
WSDOT Stormwater Features Inventory Program
NE
Northeast (bearing 22.5-67.5)
WSDOT Stormwater Features Inventory Program
E
East (bearing 67.5-112.5)
WSDOT Stormwater Features Inventory Program
SE
Southeast (bearing 112.5-157.5)
WSDOT Stormwater Features Inventory Program
S
South (bearing 157.5-202.5)
WSDOT Stormwater Features Inventory Program
SW
Southwest (bearing 202.5-247.5)
WSDOT Stormwater Features Inventory Program
W
West (bearing 247.5-292.5)
WSDOT Stormwater Features Inventory Program
NW
Northwest (bearing 292.5-337.5)
WSDOT Stormwater Features Inventory Program
Unknown
The water flow direction is unclear at the time of documentation.
WSDOT Stormwater Features Inventory Program
WSDOT Stormwater Features Inventory Program
StormwaterSystemID
StormwaterSystemID
Integer
4
0
0
Unique ID assigned to each “Stormwater System” feature type. All stormwater features, from the discharge point upstream to the first feature where concentrated stormwater starts flowing through the system to the discharge, will have the same unique StormwaterSystemID value.
WSDOT Stormwater Features Inventory Program
DischargeRecipientCategory
DischargeRecipientCategory
SmallInteger
2
0
0
This is a selection list of the discharge point feature subtypes,
Incoming
The discharge point meets the WSDOT definition of a “incoming” discharge.
WSDOT Stormwater Features Inventory Program
Land Surface
The discharge point meets the WSDOT definition of a “land surface” discharge.
WSDOT Stormwater Features Inventory Program
Managed System
The discharge point meets the WSDOT definition of a “managed system” discharge.
WSDOT Stormwater Features Inventory Program
Subsurface
The discharge point meets the WSDOT definition of a “subsurface” discharge.
WSDOT Stormwater Features Inventory Program
Surface Water
The discharge point meets the WSDOT definition of a “surface water” discharge.
WSDOT Stormwater Features Inventory Program
WSDOT Stormwater Features Inventory Program
DischargeRecipientType
DischargeRecipientType
String
40
0
0
A subtype-specific description of the immediate recipient of the stormwater discharge.
Subtype “Incoming” - WSDOT Property
The structure conveying the incoming flow discharges to ground or other part of WSDOT right of way that is not part of WSDOT’s stormwater system.
WSDOT Stormwater Features Inventory Program
Subtype “Incoming” - WSDOT MS4
The structure conveying incoming flow is physically connected to the local WSDOT stormwater system.
WSDOT Stormwater Features Inventory Program
Subtype “Land Surface” - Pasture, Field, Prairie
The stormwater conveyance discharges to a pasture, field, or prairie (typically indicated by planted or natural grass or small shrub vegetation).
WSDOT Stormwater Features Inventory Program
Subtype “Land Surface” - Forest
The stormwater conveyance discharges to a forest (typically indicated by trees and large woody undergrowth).
WSDOT Stormwater Features Inventory Program
Subtype “Land Surface” - Grass, Turf, Lawn
The stormwater system discharges to privately or publicly maintained grass, turf, or lawn.
WSDOT Stormwater Features Inventory Program
Subtype “Land Surface” - Impervious Surface, Rock
The stormwater system discharges to an impervious surface or rock surface.
WSDOT Stormwater Features Inventory Program
Subtype “Managed System” - Municipality
The WSDOT stormwater system discharges to a stormwater system owned or maintained by a local municipality.
WSDOT Stormwater Features Inventory Program
Subtype “Managed System” - Private Party
The WSDOT stormwater system discharges to a stormwater system that is owned or maintained by a private party.
WSDOT Stormwater Features Inventory Program
Subtype “Subsurface” - Engineered
The WSDOT stormwater system discharges to the ground via a constructed stormwater best management practice (BMP) that is designed to facilitate infiltration.
WSDOT Stormwater Features Inventory Program
Subtype “Subsurface” - Passive
The WSDOT stormwater system discharges to the ground via natural infiltration in a local low area or slope that is not a dispersion area BMP.
WSDOT Stormwater Features Inventory Program
Subtype “Surface Water” - River or Stream
The WSDOT stormwater system discharges to a flowing body of fresh water (perennial) or a water course (intermittent).
WSDOT Stormwater Features Inventory Program
Subtype “Surface Water” - Marine
The WSDOT stormwater system discharges to a saltwater body, such as the Puget Sound or Pacific Ocean or peripheral waters, that is subject to the ebb and flow of the tide.
WSDOT Stormwater Features Inventory Program
Subtype “Surface Water” - Lake or Non-stormwater Pond
The WSDOT stormwater system discharges to a relatively still, fresh water body, localized in a basin, and surrounded by land. These can include constructed impoundments such as reservoirs, but should not include impoundments for the specific purpose of stormwater treatment.
WSDOT Stormwater Features Inventory Program
Subtype “Surface Water” - Wetland
The WSDOT stormwater system discharges to an area where local hydrologic conditions are sufficient to support, and under normal circumstances do support, vegetation typically adapted for life in saturated soil conditions, and has been confirmed through research of existing wetland delineations to be a Wetland area.
WSDOT Stormwater Features Inventory Program
Subtype “Surface Water” - Irrigation Channel
The WSDOT stormwater system discharges to a body of water flowing in a ditch or channel that is designed and constructed to convey water for the purposes of irrigation.
WSDOT Stormwater Features Inventory Program
Subtype “Surface Water” - Wet Area
The WSDOT stormwater system discharges to an area where local hydrologic conditions are sufficient to support, and under normal circumstances do support, vegetation typically adapted for life in saturated soil conditions, but has not been confirmed through research of existing wetland delineations to be a Wetland area.
WSDOT Stormwater Features Inventory Program
Subtype “Surface Water” - Other Add Note
The WSDOT stormwater system discharges to a body of water that, at the time of documentation, is determined to be of a type not included on this list.
WSDOT Stormwater Features Inventory Program
WSDOT Stormwater Features Inventory Program
InvolvedNonWSDOTPartyName
InvolvedNonWSDOTPartyName
String
100
0
0
The name of the non-WSDOT party involved in a discharge scenario, if applicable. For example, “Incoming” or “Managed System” discharge scenarios may include a physical connection to a system managed by a private party or a municipality. A “Land Surface” discharge scenario may include land owned by a private party or a federal or state forest. This attribute is distinct from the “NonWSDOTJusrisdiction” field.
WSDOT Stormwater Features Inventory Program
NonWSDOTJurisdiction
NonWSDOTJurisdiction
String
100
0
0
The local jurisdiction National Pollutant Discharge Elimination System (NPDES) municipal stormwater permittee who has legal authority over the area where a stormwater discharge is located.
WSDOT Stormwater Features Inventory Program
ReceivingWaterbodyname
ReceivingWaterbodyname
String
40
0
0
Specific to the “Surface Water” discharge point subtype. This is the name of the water body receiving the discharge.
WSDOT Stormwater Features Inventory Program
IllicitDischargeFlag
IllicitDischargeFlag
String
10
0
0
Specific to the “Discharge Point” feature subtype “Incoming,” this field indicates whether or not the incoming discharge was identified as potentially conveying pollutants to WSDOT’s stormwater system.
Licit
There are no identifiable criteria present indicating the incoming discharge is conveying pollutants to the WSDOT stormwater system.
WSDOT Stormwater Features Inventory Program
Illicit
There are identifiable criteria present indicating the incoming discharge is potentially conveying pollutants to the WSDOT stormwater system.
WSDOT Stormwater Features Inventory Program
Unknown
At the time of data collection, it is unclear whether the incoming connection is conveying pollutants to the WSDOT stormwater system.
WSDOT Stormwater Features Inventory Program
N/A
This attribute is not applicable to the feature type being documented.
WSDOT Stormwater Features Inventory Program
WSDOT Stormwater Features Inventory Program
FranchisePermitID
FranchisePermitID
String
20
0
0
This is the identification number (if registered) from the Utility Permit or Franchise issued by WSDOT to the owner of an incoming line that is physically connected to the WSDOT stormwater system. These Utility Permits and Franchises are issued to persons, associations, private or municipal corporations, the U.S. Government, or agencies.
WSDOT Stormwater Features Inventory Program
AssociatedFeatureType
AssociatedFeatureType
String
40
0
0
The final feature in a network prior to the discharge point.
Ditch Vegetated
A majority of the ditch bottom is vegetated.
WSDOT Stormwater Features Inventory Program
Ditch Bare Soil
A majority of the ditch bottom is bare soil.
WSDOT Stormwater Features Inventory Program
Ditch Rock
A majority of the ditch bottom is lined with rock (such as rip rap).
WSDOT Stormwater Features Inventory Program
Ditch Asphalt
A majority of the ditch bottom is lined with asphalt.
WSDOT Stormwater Features Inventory Program
Ditch Concrete
A majority of the ditch bottom is lined with concrete.
WSDOT Stormwater Features Inventory Program
Ditch Other Add Note
A majority of the ditch bottom is composed of material other than what is noted here. Briefly describe in the note field the material type.
WSDOT Stormwater Features Inventory Program
Ditch Unknown
The feature type of “Ditch” is confirmed, but the material type is unknown.
WSDOT Stormwater Features Inventory Program
Pipe Concrete
The pipe is constructed of concrete material.
WSDOT Stormwater Features Inventory Program
Pipe Plastic
The pipe is constructed of plastic material.
WSDOT Stormwater Features Inventory Program
Pipe Metal
The pipe is constructed of metal material.
WSDOT Stormwater Features Inventory Program
Pipe Clay
The pipe is constructed of clay material.
WSDOT Stormwater Features Inventory Program
Pipe Other Add Note
The pipe is constructed of a material other than what is listed here. Briefly describe in the note field the material type.
WSDOT Stormwater Features Inventory Program
Pipe Unknown
The feature type of “Pipe” is confirmed, but the material type is unknown.
WSDOT Stormwater Features Inventory Program
Curb Concrete
The curb is constructed of a concrete material.
WSDOT Stormwater Features Inventory Program
Curb Asphalt
The curb is constructed of an asphalt material.
WSDOT Stormwater Features Inventory Program
Curb Unknown
The feature type of “Curb” is confirmed, but the material type is unknown.
WSDOT Stormwater Features Inventory Program
Infiltration Facility
This is to be used when there is a designed stormwater infiltration facility discharging stormwater to the subsurface. These include facilities such as infiltration trenches, dry wells, infiltration ponds, and infiltration vaults.
WSDOT Stormwater Features Inventory Program
Maintenance Concern Add Note
Stormwater is being discharged from a system that has maintenance concerns.
WSDOT Stormwater Features Inventory Program
Unknown
At the time of documentation, it is unclear what the discharge is associated with.
WSDOT Stormwater Features Inventory Program
Other Add Note
The feature type does not fall under any of the existing categories. Briefly describe in the notes field the feature and material type.
WSDOT Stormwater Features Inventory Program
WSDOT Stormwater Features Inventory Program
AssociatedFeatureID
AssociatedFeatureID
String
20
0
0
This value corresponds to the “WSDOTFeatureNumber” for the discharging stormwater feature, assigned by the Highway Features agencywide data store.
WSDOT Stormwater Features Inventory Program
AccessoryEquip
AccessoryEquip
String
150
0
0
List of semi permanent devices or equipment installed in a stormwater feature that is not otherwise included in the Stormwater Features Inventory Database feature list.
WSDOT Stormwater Features Inventory Program
PrimaryFunction
PrimaryFunction
String
50
0
0
Indicates the high-level stormwater management function of a feature. For best management practice (BMP) features, this value is specified by the design criteria provided for the feature.
Runoff Treatment
The feature is designed to perform pollutant removal to a specified level prior to discharge.
Flow Control
The feature is designed to mitigate the impacts of stormwater runoff flow rates from the system.
Conveyance
The feature is designed to transport stormwater from one point to another.
Energy Dissipation
The feature is designed to reduce the total energy of the flowing water prior to discharge.
System Discharge
The feature facilitates ultimate discharge from the stormwater system.
WSDOT Stormwater Features Inventory Program
LocationCollectionMethod
LocationCollectionMethod
String
50
0
0
Indicates how the feature was collected. Various office- and field-based data collection methods are distinguished.
Field: Survey Grade GPS
Device is accurate to within 1 centimeter, postprocessed or real-time corrected against at least one static base station.
Field: Mapping Grade GPS
Device is accurate to within 1 meter, often post processed or real-time corrected against a static base station.
Field: Recreational Grade GPS
Device is accurate to within 10 meters.
Field: MilePost Measured
The feature location was collected in the field using a measuring device such as a vehicle odometer or distance measuring instrument to establish a milepost value based on the WSDOT highway linear referencing system.
Field: MilePost Estimated
The feature location was collected in the field using an estimated milepost value based on the WSDOT highway linear referencing system.
Field: Presumed
The feature location was approximated in the field due to heavy overgrowth of vegetation, inaccessibility, or burial.
Office: Engineering Documents
The feature location was recorded in the office using computer assisted drafting engineering software.
Office: GIS WSDOT
The feature was digitized in the office using a desktop-based Geographic Information System (GIS) using geo-referenced as-built plan sheets.
Office: GIS Web
The feature was digitized in the office using a GIS Web application.
Office: GIS Other
The feature was digitized in the office using a type of GIS application that is not depicted here.
Office: Presumed
The feature location was approximated in the office if the true point location or linear path could not be determined from available engineering plans.
Office: MilePost Estimated
The feature location was recorded in the office using an estimated milepost value based on the WSDOT highway linear referencing system.
Other Add Note
The feature location was determined using a method that is not represented here.
WSDOT Stormwater Features Inventory Program
LocationCollectionProgram
LocationCollectionProgram
String
25
0
0
Indicates the internal WSDOT program that documented the feature or, in the case of a third party, the WSDOT group that provided method and oversight during the data collection.
WSDOT ESO
The feature was documented by or with oversight from the WSDOT Environmental Services Office.
WSDOT RFIP
The feature was documented by or with oversight from the WSDOT Roadside Features Inventory Program.
WSDOT Maintenance
The feature was documented by or with oversight from the WSDOT Maintenance group.
WSDOT CAE
The feature was documented by or with oversight from the WSDOT Computer Aided Engineering group.
Other Add Note
The feature was documented by a group other than is indicated here.
WSDOT Stormwater Features Inventory Program
DataDevelopmentNotes
DataDevelopmentNotes
String
150
0
0
A field used to nominate new codes for the data steward to approve.
WSDOT Stormwater Features Inventory Program
LocationFieldNotes
LocationFieldNotes
String
150
0
0
A note field used to record issues with a feature's location or characterization so the data steward can look into correcting it.
WSDOT Stormwater Features Inventory Program
MaintenanceConcerns
MaintenanceConcerns
String
150
0
0
An important note field used to report issues with the feature that can be remedied through maintenance activity. Maintenance-related issues can compromise the design of a conveyance system and facilitate discharge of undesirable pollutants.
WSDOT Stormwater Features Inventory Program
LifeCycleCurrentStatus
LifeCycleCurrentStatus
String
30
0
0
The current or last known status of a feature.
Active
The feature actively collects or conveys stormwater.
Removed
The feature has been physically removed.
Temporarily Inactive
The feature has been temporarily plugged or circumvented with the intent to reintroduce stormwater flow in the future.
Unknown
At the time of data collection, it is unknown whether the feature actively conveys stormwater.
Other Add Note
At the time of data collection, it is determined the feature has a status that is best described in terms other than those presented here.
Deactivated
This feature is no longer active as part of the WSDOT municipal separate storm sewer system.
WSDOT Stormwater Features Inventory Program
LifeCycleStatusDate
LifeCycleStatusDate
Date
8
0
0
The most recent date on which the “LifeCycleCurrentStatus” field was changed.
WSDOT Stormwater Features Inventory Program
WSDOTFeatureNumber
WSDOTFeatureNumber
String
20
0
0
This is a unique ID that is assigned to the feature during its initial upload to the WSDOT Highway Features agencywide data store and is retained for the life of that feature.
WSDOT Stormwater Features Inventory Program
PermitID
PermitID
String
20
0
0
Determined by the Permit Number of WSDOT's active National Pollutant Discharge Elimination System municipal stormwater permit during the time of data collection. For example, discharge points collected for compliance with WSDOT’s 2009 municipal permit will have a “PermitID” value of WAR043000A.
WSDOT Stormwater Features Inventory Program
Notes
Notes
String
150
0
0
A critical note field used to complement the feature attribute and record details about the feature that may not be included in the standard attributes.
WSDOT Stormwater Features Inventory Program
DrainageArea
DrainageArea
Double
8
0
0
• The surface area that contributes flow to a discrete feature, series of features, or a complete stormwater system.
• This value can be pulled from the hydraulic model or calculated based on field data collection. For a complete stormwater system, the drainage area includes the total area of the drainage basin in which the feature is located. The perimeter of this area may be natural drainage divides or may be defined by engineered structures such as curb, barrier, or berms that contain flow. The drainage area for each feature includes only the area that is “upstream” of that feature.
WSDOT Stormwater Features Inventory Program
DrainageAreaUnits
DrainageAreaUnits
String
10
0
0
The units chosen to represent the value recorded in “DrainageArea” (typically, “acres”).
Acres
U.S. survey acre: 43,560 square feet.
Hectares
Metric unit of area, equivalent of 10,000 square meters.
Sq. feet
Use U.S survey foot.
Sq. meters
Use International System (SI) meter.
WSDOT Stormwater Features Inventory Program
DischargePointRole
DischargePointRole
String
15
0
0
Indicates whether the feature associated with the discharge point is designed as the primary discharge point for the stormwater system or as the system overflow.
Primary
The associated feature is designed to act as the primary discharge location for the stormwater system.
Overflow
The associated feature is designed to act as a system overflow.
WSDOT Stormwater Features Inventory Program
AccessInstructions
AccessInstructions
String
200
0
0
A general note regarding instructions or hints on how to physically access the feature during a field visit.
WSDOT Stormwater Features Inventory Program
LastUpdatedBy
LastUpdatedBy
String
50
0
0
The name of the person who most recently modified the feature’s location or attributes.
WSDOT Stormwater Features Inventory Program
FeatureDesignDate
FeatureDesignDate
Date
8
0
0
The initial design date for a feature, as recorded in the Hydraulic Report or as-built plans.
WSDOT Stormwater Features Inventory Program
FeatureBuildDate
FeatureBuildDate
Date
8
0
0
The date a feature was placed in/on the ground, if known. This date is distinct from the “ActualWorkStartDate”.
WSDOT Stormwater Features Inventory Program
FeatureCurrentMeasurementDate
FeatureCurrentMeasurementDate
Date
8
0
0
Most recent date a feature's location was field verified. The location of this feature is “current” as of that date.
WSDOT Stormwater Features Inventory Program
FeatureRetireDate
FeatureRetireDate
Date
8
0
0
The date a feature is no longer in use. As of this date, the feature is “deactivated.”
WSDOT Stormwater Features Inventory Program
RecordUpdateDate
RecordUpdateDate
Date
8
0
0
The most recent date on which a record in the Stormwater Features Inventory Database was changed/updated.
WSDOT Stormwater Features Inventory Program
BMPTypeID
BMPTypeID
Integer
4
0
0
• If the stormwater conveyance element contains a BMP or is acting as a BMP, the BMP type is entered here.
• BMPs are “best management practices,” or structural devices, that are used singly or in combination to prevent or reduce the detrimental impacts of stormwater, such as pollution of water, degradation of channels, damage to structures, and flooding (WSDOT Highway Runoff Manual [HRM], M 31-16).
1 – Biofiltration Swale
Vegetation-lined channels designed to remove suspended solids from stormwater (HRM, 5-4.1.3).
WSDOT Stormwater Features Inventory Program
6 – Continuous Inflow Biofiltration Swale
Used when water enters a biofiltration swale continuously along the side slope rather than discretely at the head. The basic swale design is modified by increasing swale length to achieve an equivalent average hydraulic residence time (HRM, 5-4.1.3, AT.06).
WSDOT Stormwater Features Inventory Program
8 – Drywell
Subsurface concrete structures that convey stormwater runoff into the soil matrix. Can be stand-alone or part of a large drainage system (HRM, 5-4.2.1, IN.05).
WSDOT Stormwater Features Inventory Program
9 – Engineered Dispersion
Similar to natural dispersion but area may be landscaped and engineered compost-amended soils may be used. Major to minor construction may be needed depending on topography (HRM, 5-4.2.2, FC.02).
WSDOT Stormwater Features Inventory Program
11 – Infiltration Trench
Long, narrow, stone-filled trenches used for collection, temporary storage, and infiltration of stormwater (HRM, 5-4.2.1, IN.03).
WSDOT Stormwater Features Inventory Program
13 – Media Filter Drain (Also ecology bank, ecology embankment, compost-amended vegetated filter strip)
Linear flow-through stormwater treatment located along highway side slopes and medians (HRM, 5-4.1.3, RT.07).
WSDOT Stormwater Features Inventory Program
14 – Natural Dispersion
Use of the natural setting of the highway to remove stormwater (infiltration, evaporation, transpiration); should not discharge to a lake or stream (HRM, 5-4.2.2, FC.01).
WSDOT Stormwater Features Inventory Program
15 – Oil Containment Boom
A weather-resistant, hydrophobic, absorbent-filled boom for removing hydrocarbon sheens from water (HRM, 5-4.1.5, RT.22).
WSDOT Stormwater Features Inventory Program
16 – Permeable Pavement Surfaces
Can be applied to non-pollution-generating surfaces such as pedestrian/bike paths, raised traffic islands, and sidewalks. Permeable surfaces allow stormwater to pass through and infiltrate the soil below (HRM, 5-4.2.1, IN.06).
WSDOT Stormwater Features Inventory Program
17 – Vegetated Filter Strip
Land areas of planted vegetation and amended soils situated between pavement surface and collection system (HRM, 5-4.1.3, RT.02).
WSDOT Stormwater Features Inventory Program
18 – Wet Biofiltration Swale
Variation of basic biofiltration swale for use where longitudinal slope is slight, water table is high, or continuous base flow is likely to result in saturated soil conditions (HRM, 5-4.1.3, RT.05).
WSDOT Stormwater Features Inventory Program
19 – Stormwater Ponds
Parent value for all features listed in Stormwater SwPondType domain under the StormwaterPondPoint feature class.
WSDOT Stormwater Features Inventory Program
20 – Stormwater Vaults
Parent value for all features listed in Stormwater SwVaultType domain under the StormwaterVault feature class.
WSDOT Stormwater Features Inventory Program
21 – Other Add Note
Use if the feature is a BMP not listed.
WSDOT Stormwater Features Inventory Program
22 – Linear Sand Filter
Linear sand filters are typically long, shallow, two-celled, rectangular vaults. The first cell is designed for settling coarse particles, and the second cell contains the sand bed. Stormwater flows into the second cell via a weir section that also functions as a flow spreader.
WSDOT Stormwater Features Inventory Program
23 – Filters
Filtration device placed in a stormwater structure that removes pollutants by passing untreated stormwater through a treatment media.
WSDOT Stormwater Features Inventory Program
24 – None
The feature does not act as, or contain, a current BMP
WSDOT Stormwater Features Inventory Program
25 – Flow Restrictor
A device such as an orifice or weir that restricts the volume of stormwater flow through or at the outlet of a structure.
WSDOT Stormwater Features Inventory Program
26 – Energy Dissipator
• A method to reduce the total energy of flowing water; a mechanism that reduces velocity prior to or at discharge from an outfall in order to prevent erosion (see Hydraulics Manual, Section 3-4.7; see also FHWA Hydraulic Engineering Circular No. 14). • The WSDOT Stormwater Features Inventory Database should not document energy dissipators unless they occur at or near the end of a stormwater system, immediately prior to discharge.
WSDOT Stormwater Features Inventory Program
WSDOT Stormwater Features Inventory Program
ProjectName
ProjectName
String
150
0
0
This field is used to enter the written name of the project during which the feature was installed.
WSDOT Stormwater Features Inventory Program
GPSDeviceName
GPSDeviceName
String
50
0
0
If the feature location was documented using a GPS/GNSS unit, this is the proprietary name and version of the GPS/GNSS hardware device used.
WSDOT Stormwater Features Inventory Program
SpatialAccuracy
SpatialAccuracy
String
50
0
0
This attribute is specific to the WSDOT Highway Features agencywide data store and is populated by data owners with an estimated numeric value of expected accuracy for the feature location.
WSDOT Stormwater Features Inventory Program
AverageAccuracy
AverageAccuracy
Double
8
0
0
The average of the estimated accuracy values (in meters) for each vertex in a feature as calculated by Trimble® GPS Analyst™ (GPS Analyst) software during postprocessing.
WSDOT Stormwater Features Inventory Program
DifferentialCorrection
DifferentialCorrection
String
20
0
0
This field indicates whether or not a feature collected via GPS has been differentially corrected. To be filled in with either “yes” or “no.”
WSDOT Stormwater Features Inventory Program
OffsetDistance
OffsetDistance
Double
8
0
0
The distance from the highway edge stripe to the feature being collected, as measured exactly normal to the edge stripe.
WSDOT Stormwater Features Inventory Program
OffsetType
OffsetType
String
40
0
0
The type of offset routine used to record the location of a feature.
None
The feature location was physically occupied during documentation.
WSDOT Stormwater Features Inventory Program
distance Bearing Laser
The “distance-bearing routine” was used to document the feature location.
WSDOT Stormwater Features Inventory Program
distance Distance Laser
The “distance-distance routine” was used to document the feature location.
WSDOT Stormwater Features Inventory Program
normal to Edgestripe Laser
The “normal to edgestripe routine” was used to document the feature location.
WSDOT Stormwater Features Inventory Program
Other Add Note
An offset routine was used that is not included in this list.
WSDOT Stormwater Features Inventory Program
normal to Edgestripe Other Add Note
The “normal to edgestripe” offset method was used, but a method other than laser was used to generate the measurement.
WSDOT Stormwater Features Inventory Program
WSDOT Stormwater Features Inventory Program
WorstAccuracy
WorstAccuracy
Double
8
0
0
This value is the estimated accuracy of the vertex that has the lowest estimated accuracy value.
WSDOT Stormwater Features Inventory Program
HorizontalAccuracy
HorizontalAccuracy
Double
8
0
0
To be determined.
WSDOT Stormwater Features Inventory Program
HorizontalUnits
HorizontalUnits
String
20
0
0
To be determined.
WSDOT Stormwater Features Inventory Program
CollectionDate
CollectionDate
Date
8
0
0
Date the feature was originally documented.
WSDOT Stormwater Features Inventory Program
RecordCreateDate
RecordCreateDate
Date
8
0
0
The date when a feature is added to the Stormwater Features Inventory Database (SFID).
WSDOT Stormwater Features Inventory Program
DesignStandardDate
DesignStandardDate
Date
8
0
0
The publication date (version) of the manual followed to construct the feature (month/year) as indicated in the Hydraulic Report.
WSDOT Stormwater Features Inventory Program
DischargeName
DischargeName
String
40
0
0
The unique ID assigned to each discharge point, based on State Route Mile Post and inventory direction.
WSDOT Stormwater Features Inventory Program
FromOpenChannelDitchShape
FromOpenChannelDitchShape
String
30
0
0
Approximate geometric shape of the open channel or ditch flowing to the discharge point.
Rectangle
The ditch geometry is defined by a flat bottom and vertical sides.
WSDOT Stormwater Features Inventory Program
Trapezoidal Equal Sides
The ditch geometry is defined by a flat bottom and sloped sides, with the foreslope and backslope having the same “slope” range value as defined in the “Slope” domain of the “ForeSlope” and “BackSlope” fields of the “Ditch” feature type.
WSDOT Stormwater Features Inventory Program
Trapezoidal Unequal Sides
The ditch geometry is defined by a flat bottom and sloped sides, with the foreslope and backslope having a different slope range value as defined in the “Slope” domain of the “ForeSlope” and “BackSlope” fields of the “Ditch” feature type.
WSDOT Stormwater Features Inventory Program
Triangle
The ditch geometry is defined by sloped sides and negligible bottom width.
WSDOT Stormwater Features Inventory Program
U-Shaped
The ditch geometry is defined by a pronounced curvature near the bottom and has vertical walls.
WSDOT Stormwater Features Inventory Program
Other Add Note
The ditch geometry is better characterized by a value that is not included here.
WSDOT Stormwater Features Inventory Program
N/A
Not applicable for the associated feature type selected.
WSDOT Stormwater Features Inventory Program
WSDOT Stormwater Features Inventory Program
IDDERecordNum
IDDERecordNum
String
25
0
0
Specific to the “Discharge Point” feature subtype “Incoming,” if the discharge has been identified as a potential illicit discharge. It is the unique record number assigned by the internal WSDOT Illicit Discharge Detection and Elimination (IDDE) web application/database.
WSDOT Stormwater Features Inventory Program
LeftRightIndicator
LeftRightIndicator
String
5
0
0
The general location of a discharge point relative to the roadway centerline and looking in the increasing direction (“ahead” on milepost) as based on the highway linear referencing system.
L
Feature is located on the numerically decreasing milepost side of the traveled roadway.
WSDOT Stormwater Features Inventory Program
LC
Feature is located on the median side of the numerically decreasing milepost side of the traveled roadway.
WSDOT Stormwater Features Inventory Program
C
Feature is located in the median, between the numerically increasing and decreasing milepost sides of the traveled roadway.
WSDOT Stormwater Features Inventory Program
RC
Feature is located on the median side of the numerically increasing milepost side of the traveled roadway.
WSDOT Stormwater Features Inventory Program
R
Feature is located on the numerically increasing milepost side of the traveled roadway.
WSDOT Stormwater Features Inventory Program
WSDOT Stormwater Features Inventory Program
PipeSizeUnits
PipeSizeUnits
String
8
0
0
The units used when entering values for PipeDiameter.
feet
U.S. survey feet
WSDOT Stormwater Features Inventory Program
meters
International System (SI) meter
WSDOT Stormwater Features Inventory Program
inches
1/12 of one U.S. foot
WSDOT Stormwater Features Inventory Program
cms
International System (SI) centimeter
WSDOT Stormwater Features Inventory Program
mms
International System (SI) millimeter
WSDOT Stormwater Features Inventory Program
WSDOT Stormwater Features Inventory Program
RelatedRouteType
RelatedRouteType
String
10
0
0
A two-character abbreviation for the type of roadway designation, as defined by WSDOT’s State Highway Log Planning Report.
AR
Alternate route
CO
Couplet
FD
Frontage road on the decreasing milepost side of the highway
FI
Frontage road on the increasing milepost side of the highway.
HD
Grade-separated HOV (high-occupancy vehicle) lane on the decreasing milepost side of the highway.
HI
Grade-separated HOV on the increasing milepost side of the highway.
LX
Crossroad within a highway interchange.
RL
Reversible lane
SP
Spur
WSDOT Stormwater Features Inventory Program
StateRoute
StateRoute
String
5
0
0
State route number using a three-digit form. For example, the “StateRoute” value for highway 3 is “003.”
WSDOT Stormwater Features Inventory Program
Status
Status
String
10
0
0
This field records whether the new discharge point being collected is intended to replace an existing “legacy” data point or is being collected for the first time.
New
The point being collected was not previously documented in the legacy data layer.
WSDOT Stormwater Features Inventory Program
Existing
The point being collected is documented in the legacy data layer and this new point is intended to replace it.
WSDOT Stormwater Features Inventory Program
Retired
The point being reviewed needs to be retired from the active database features due to: no longer functioning as part of the stormwater conveyance system, or being reassessed as a nondischarge point location under the current definition.
WSDOT Stormwater Features Inventory Program
WSDOT Stormwater Features Inventory Program
Photo1
Photo1
String
255
0
0
The first camera-assigned photo number associated with the feature; up to three photos.
WSDOT Stormwater Features Inventory Program
Photo1Desc
Photo1Desc
String
255
0
0
A basic description of the first photograph recorded; up to three photos.
WSDOT Stormwater Features Inventory Program
Photo2
Photo2
String
255
0
0
The second camera-assigned photo number associated with the feature; up to three photos.
WSDOT Stormwater Features Inventory Program
Photo2Desc
Photo2Desc
String
255
0
0
A basic description of the second photograph recorded; up to three photos.
WSDOT Stormwater Features Inventory Program
Photo3
Photo3
String
255
0
0
The third camera-assigned photo number associated with the feature; up to three photos.
WSDOT Stormwater Features Inventory Program
Photo3Desc
Photo3Desc
String
255
0
0
A basic description of the third photograph recorded; up to three photos.
WSDOT Stormwater Features Inventory Program
SHAPE
SHAPE
Geometry
0
0
0
Feature geometry.
ESRI
Coordinates defining the features.
PipeDiameter
PipeDiameter
Double
8
0
0
The internal diameter of the pipe that is discharging.
WSDOT Stormwater Features Inventory Program
Surface Water
1
WSDOTownership
Yes
YNUnk
Yes, No, Unknown
Coded Value
Default value
Default value
String
WSDOTresponsible
Yes
YNUnk
Yes, No, Unknown
Coded Value
Default value
Default value
String
DesignStandardRefDoc
DesignStandardRefDoc
Design Standard Reference Document
Coded Value
Default value
Default value
String
LandUse
Highway
LandUse
Land Use
Coded Value
Default value
Default value
String
WaterFlowDirection
WaterFlow
Water Flow Direction
Coded Value
Default value
Default value
String
DischargeRecipientType
SurfaceWaterRecType
Surface Water Recipient Type
Coded Value
Default value
Default value
String
IllicitDischargeFlag
NA
LicitIllicit
Licit, Illicit
Coded Value
Default value
Default value
String
AssociatedFeatureType
Unknown
AssociatedFeatureType
features that are associated with discharge point
Coded Value
Default value
Default value
String
PrimaryFunction
NA
Function
Function
Coded Value
Default value
Default value
String
LocationCollectionMethod
LocationCollectionMethod
Location Collection Method
Coded Value
Default value
Default value
String
LocationCollectionProgram
NA
LocationCollectionProgram
Location Collection Program
Coded Value
Default value
Default value
String
LifeCycleCurrentStatus
System Discharge
LifeCycleCurrentStatus
Life Cycle Current Status
Coded Value
Default value
Default value
String
DrainageAreaUnits
Office: GIS WSDOT
AreaUnits
Area Units
Coded Value
Default value
Default value
String
DischargePointRole
Primary
DischargePtRole
Discharge Point Role
Coded Value
Default value
Default value
String
BMPTypeID
Active
BMPTypeID
BMPTypeName
Coded Value
Default value
Default value
Integer
OffsetType
acres
OffsetType
Offset Collection Type
Coded Value
Default value
Default value
String
FromOpenChannelDitchShape
Primary
DitchShape
Ditch Shape
Coded Value
Default value
Default value
String
LeftRightIndicator
None
LeftRightIndicator
Left Right Indicator
Coded Value
Default value
Default value
String
PipeSizeUnits
None
DepthLengthUnits
Depth and Length Units
Coded Value
Default value
Default value
String
RelatedRouteType
RRT
RRT
Coded Value
Default value
Default value
String
Status
Status
Status New or Existing or Retired
Coded Value
Default value
Default value
String
New
MixedFlow
MixedFlowFlag
Mixed Flow Flag
Coded Value
Default value
Default value
String
NA
ConveyanceMode
ConveyanceMode
Conveyance Mode
Coded Value
Default value
Default value
String
SWAttributeVerified
YesNo
Yes, No
Coded Value
Default value
Default value
String
SWLocationVerified
YesNo
Yes, No
Coded Value
Default value
Default value
String
ConveyanceMode
ConveyanceMode
Conveyance Mode
Coded Value
Default value
Default value
DBO
String
Managed System
2
WSDOTownership
YNUnk
Yes, No, Unknown
Coded Value
Default value
Default value
String
Yes
WSDOTresponsible
YNUnk
Yes, No, Unknown
Coded Value
Default value
Default value
String
Yes
DesignStandardRefDoc
DesignStandardRefDoc
Design Standard Reference Document
Coded Value
Default value
Default value
String
LandUse
LandUse
Land Use
Coded Value
Default value
Default value
String
Highway
WaterFlowDirection
WaterFlow
Water Flow Direction
Coded Value
Default value
Default value
String
DischargeRecipientType
ManagedSystemRecType
Managed System Recipient Type
Coded Value
Default value
Default value
String
IllicitDischargeFlag
NA
LicitIllicit
Licit, Illicit
Coded Value
Default value
Default value
String
AssociatedFeatureType
AssociatedFeatureType
features that are associated with discharge point
Coded Value
Default value
Default value
String
PrimaryFunction
Function
Function
Coded Value
Default value
Default value
String
LocationCollectionMethod
LocationCollectionMethod
Location Collection Method
Coded Value
Default value
Default value
String
System Discharge
LocationCollectionProgram
LocationCollectionProgram
Location Collection Program
Coded Value
Default value
Default value
String
LifeCycleCurrentStatus
LifeCycleCurrentStatus
Life Cycle Current Status
Coded Value
Default value
Default value
String
DrainageAreaUnits
AreaUnits
Area Units
Coded Value
Default value
Default value
String
DischargePointRole
Primary
DischargePtRole
Discharge Point Role
Coded Value
Default value
Default value
String
BMPTypeID
Primary
BMPTypeID
BMPTypeName
Coded Value
Default value
Default value
Integer
OffsetType
OffsetType
Offset Collection Type
Coded Value
Default value
Default value
String
FromOpenChannelDitchShape
None
DitchShape
Ditch Shape
Coded Value
Default value
Default value
String
LeftRightIndicator
LeftRightIndicator
Left Right Indicator
Coded Value
Default value
Default value
String
PipeSizeUnits
DepthLengthUnits
Depth and Length Units
Coded Value
Default value
Default value
String
RelatedRouteType
RRT
RRT
Coded Value
Default value
Default value
String
Status
Status
Status New or Existing or Retired
Coded Value
Default value
Default value
String
New
MixedFlow
MixedFlowFlag
Mixed Flow Flag
Coded Value
Default value
Default value
String
NA
ConveyanceMode
NA
ConveyanceMode
Conveyance Mode
Coded Value
Default value
Default value
String
SWAttributeVerified
YesNo
Yes, No
Coded Value
Default value
Default value
String
SWLocationVerified
YesNo
Yes, No
Coded Value
Default value
Default value
String
Subsurface
3
WSDOTownership
YNUnk
Yes, No, Unknown
Coded Value
Default value
Default value
String
Yes
WSDOTresponsible
YNUnk
Yes, No, Unknown
Coded Value
Default value
Default value
String
Yes
DesignStandardRefDoc
DesignStandardRefDoc
Design Standard Reference Document
Coded Value
Default value
Default value
String
LandUse
LandUse
Land Use
Coded Value
Default value
Default value
String
Highway
WaterFlowDirection
WaterFlow
Water Flow Direction
Coded Value
Default value
Default value
String
DischargeRecipientType
3
SubsurfaceRecType
Subsurface Recipient Type
Coded Value
Default value
Default value
String
IllicitDischargeFlag
LicitIllicit
Licit, Illicit
Coded Value
Default value
Default value
String
AssociatedFeatureType
NA
AssociatedFeatureType
features that are associated with discharge point
Coded Value
Default value
Default value
String
PrimaryFunction
Function
Function
Coded Value
Default value
Default value
String
LocationCollectionMethod
LocationCollectionMethod
Location Collection Method
Coded Value
Default value
Default value
String
LocationCollectionProgram
LocationCollectionProgram
Location Collection Program
Coded Value
Default value
Default value
String
System Discharge
LifeCycleCurrentStatus
LifeCycleCurrentStatus
Life Cycle Current Status
Coded Value
Default value
Default value
String
Office: GIS WSDOT
DrainageAreaUnits
AreaUnits
Area Units
Coded Value
Default value
Default value
String
WSDOT ESO
DischargePointRole
DischargePtRole
Discharge Point Role
Coded Value
Default value
Default value
String
Primary
BMPTypeID
Primary
BMPTypeID
BMPTypeName
Coded Value
Default value
Default value
Integer
OffsetType
Primary
OffsetType
Offset Collection Type
Coded Value
Default value
Default value
String
FromOpenChannelDitchShape
None
DitchShape
Ditch Shape
Coded Value
Default value
Default value
String
LeftRightIndicator
LeftRightIndicator
Left Right Indicator
Coded Value
Default value
Default value
String
None
PipeSizeUnits
DepthLengthUnits
Depth and Length Units
Coded Value
Default value
Default value
String
RelatedRouteType
RRT
RRT
Coded Value
Default value
Default value
String
Status
Status
Status New or Existing or Retired
Coded Value
Default value
Default value
String
New
MixedFlow
MixedFlowFlag
Mixed Flow Flag
Coded Value
Default value
Default value
String
NA
ConveyanceMode
ConveyanceMode
Conveyance Mode
Coded Value
Default value
Default value
String
SWAttributeVerified
YesNo
Yes, No
Coded Value
Default value
Default value
String
SWLocationVerified
YesNo
Yes, No
Coded Value
Default value
Default value
String
Land Surface
4
WSDOTownership
YNUnk
Yes, No, Unknown
Coded Value
Default value
Default value
String
Yes
WSDOTresponsible
YNUnk
Yes, No, Unknown
Coded Value
Default value
Default value
String
Yes
DesignStandardRefDoc
DesignStandardRefDoc
Design Standard Reference Document
Coded Value
Default value
Default value
String
LandUse
LandUse
Land Use
Coded Value
Default value
Default value
String
Highway
WaterFlowDirection
WaterFlow
Water Flow Direction
Coded Value
Default value
Default value
String
DischargeRecipientType
LandSurfaceRecType
Land Surface Recipient Type
Coded Value
Default value
Default value
String
IllicitDischargeFlag
NA
LicitIllicit
Licit, Illicit
Coded Value
Default value
Default value
String
AssociatedFeatureType
AssociatedFeatureType
features that are associated with discharge point
Coded Value
Default value
Default value
String
PrimaryFunction
Function
Function
Coded Value
Default value
Default value
String
LocationCollectionMethod
LocationCollectionMethod
Location Collection Method
Coded Value
Default value
Default value
String
System Discharge
LocationCollectionProgram
LocationCollectionProgram
Location Collection Program
Coded Value
Default value
Default value
String
Office: GIS WSDOT
LifeCycleCurrentStatus
LifeCycleCurrentStatus
Life Cycle Current Status
Coded Value
Default value
Default value
String
WSDOT ESO
DrainageAreaUnits
AreaUnits
Area Units
Coded Value
Default value
Default value
String
Active
DischargePointRole
Primary
DischargePtRole
Discharge Point Role
Coded Value
Default value
Default value
String
BMPTypeID
Primary
BMPTypeID
BMPTypeName
Coded Value
Default value
Default value
Integer
OffsetType
OffsetType
Offset Collection Type
Coded Value
Default value
Default value
String
FromOpenChannelDitchShape
None
DitchShape
Ditch Shape
Coded Value
Default value
Default value
String
LeftRightIndicator
LeftRightIndicator
Left Right Indicator
Coded Value
Default value
Default value
String
PipeSizeUnits
DepthLengthUnits
Depth and Length Units
Coded Value
Default value
Default value
String
RelatedRouteType
RRT
RRT
Coded Value
Default value
Default value
String
Status
Status
Status New or Existing or Retired
Coded Value
Default value
Default value
String
New
MixedFlow
MixedFlowFlag
Mixed Flow Flag
Coded Value
Default value
Default value
String
NA
ConveyanceMode
ConveyanceMode
Conveyance Mode
Coded Value
Default value
Default value
String
SWAttributeVerified
YesNo
Yes, No
Coded Value
Default value
Default value
String
SWLocationVerified
YesNo
Yes, No
Coded Value
Default value
Default value
String
MaintenanceBMPID
MaintenanceBMPID
String
25
0
0
Unique ID assigned to a single feature, or group of features, that is covered under the same maintenance inspection report.
WSDOT Stormwater Features Inventory Program
MixedFlow
MixedFlow
String
30
0
0
Indicates whether or not stormwater mixes with waters of the state at the point of discharge. “Mixed flow” is discussed in detail in WSDOT’s Stormwater Features Inventory: Standard Operating Procedures for Discharge Point Inventory.
WSDOT Stormwater Features Inventory Program
ConveyanceMode
ConveyanceMode
String
25
0
0
Indicates the “open” or “closed” characteristic of the conveyance receiving the discharge.
Open Pervious
An “Open Pervious” conveyance is a permeable channel in which water flows with a free surface open to the atmosphere. Open pervious conveyances typically include roadside ditches and swales, which have a general geometric cross section.
WSDOT Stormwater Features Inventory Program
Open Impervious
An “Open Impervious” conveyance is an impermeable channel in which water flows with a free surface open to the atmosphere. Open impervious conveyances typically include roadside channels, curbs, gutters, and asphalt-lined ditches that usually have a general geometric cross section.
WSDOT Stormwater Features Inventory Program
Closed Pervious
A “Closed Pervious” conveyance is a permeable conduit in which water flows with no surface open to the atmosphere. Closed pervious stormwater system conveyances typically include box culverts and covered roadside ditches.
WSDOT Stormwater Features Inventory Program
Closed Impervious
A “Closed Impervious” conveyance is an impermeable conduit in which water flows with no surface open to the atmosphere. Closed impervious stormwater system conveyances typically include concrete, plastic, and metal pipe series as well as culverts, storm drains, and catch basins.
WSDOT Stormwater Features Inventory Program
N/A
The discharge is not being received by a stormwater system; for example, natural dispersion and infiltration in a forest.
WSDOT Stormwater Features Inventory Program
Open
An “Open” conveyance is designated when the associated feature is known to be open, such as a ditch, but the material type is unknown to make the determination of permeability.
WSDOT Stormwater Features Inventory Program
Closed
A “Closed” conveyance is designated when the associated feature is known to be closed, such as a pipe, but the material type is unknown to make the determination of permeability.
WSDOT Stormwater Features Inventory Program
WSDOT Stormwater Features Inventory Program
ActualWorkStartDate
ActualWorkStartDate
Date
8
0
0
The date that physical work started on the project (construction start date).
WSDOT Stormwater Features Inventory Program
PhysicalCompletionDate
PhysicalCompletionDate
Date
8
0
0
The physical completion date of the project in which the feature was installed or first appeared.
WSDOT Stormwater Features Inventory Program
ExternalAssocID
ExternalAssocID
String
20
0
0
If the data is from a source other than WSDOT (such as a county, city, or other National Pollutant Discharge Elimination System permit holder), this is the unique identification number as assigned by the third-party data provider.
WSDOT Stormwater Features Inventory Program
ExternalAssocIDSource
ExternalAssocIDSource
String
30
0
0
If data is from a source other than WSDOT (such as a county, city, or other National Pollutant Discharge Elimination System [NPDES] permit holder), the source name is entered here.
WSDOT Stormwater Features Inventory Program
Incoming
5
WSDOTownership
Yes
YNUnk
Yes, No, Unknown
Coded Value
Default value
Default value
String
WSDOTresponsible
Yes
YNUnk
Yes, No, Unknown
Coded Value
Default value
Default value
String
DesignStandardRefDoc
DesignStandardRefDoc
Design Standard Reference Document
Coded Value
Default value
Default value
String
LandUse
LandUse
Land Use
Coded Value
Default value
Default value
String
Highway
WaterFlowDirection
WaterFlow
Water Flow Direction
Coded Value
Default value
Default value
String
DischargeRecipientType
NA
IncomingRecType
Incoming Recipient Type
Coded Value
Default value
Default value
String
IllicitDischargeFlag
LicitIllicit
Licit, Illicit
Coded Value
Default value
Default value
String
NA
AssociatedFeatureType
AssociatedFeatureType
features that are associated with discharge point
Coded Value
Default value
Default value
String
PrimaryFunction
Function
Function
Coded Value
Default value
Default value
String
LocationCollectionMethod
LocationCollectionMethod
Location Collection Method
Coded Value
Default value
Default value
String
System Discharge
LocationCollectionProgram
LocationCollectionProgram
Location Collection Program
Coded Value
Default value
Default value
String
Office: GIS WSDOT
LifeCycleCurrentStatus
LifeCycleCurrentStatus
Life Cycle Current Status
Coded Value
Default value
Default value
String
WSDOT ESO
DrainageAreaUnits
Active
AreaUnits
Area Units
Coded Value
Default value
Default value
String
DischargePointRole
DischargePtRole
Discharge Point Role
Coded Value
Default value
Default value
String
Primary
BMPTypeID
BMPTypeID
BMPTypeName
Coded Value
Default value
Default value
Integer
Primary
OffsetType
OffsetType
Offset Collection Type
Coded Value
Default value
Default value
String
FromOpenChannelDitchShape
None
DitchShape
Ditch Shape
Coded Value
Default value
Default value
String
LeftRightIndicator
LeftRightIndicator
Left Right Indicator
Coded Value
Default value
Default value
String
PipeSizeUnits
DepthLengthUnits
Depth and Length Units
Coded Value
Default value
Default value
String
RelatedRouteType
RRT
RRT
Coded Value
Default value
Default value
String
Status
Status
Status New or Existing or Retired
Coded Value
Default value
Default value
String
New
MixedFlow
MixedFlowFlag
Mixed Flow Flag
Coded Value
Default value
Default value
String
NA
ConveyanceMode
ConveyanceMode
Conveyance Mode
Coded Value
Default value
Default value
String
SWAttributeVerified
YesNo
Yes, No
Coded Value
Default value
Default value
String
SWLocationVerified
YesNo
Yes, No
Coded Value
Default value
Default value
String
Region
Region
String
2
0
0
WSDOT Region
WSDOT Stormwater Features Inventory Program
RelRouteQual
RelRouteQual
String
7
0
0
A six digit field which uniquely identifies the RRT (see below) since there may be more than one type of RRT for a route.
WSDOT Stormwater Features Inventory Program
RelRouteType
RelRouteType
String
2
0
0
Two character abbreviation for a type of roadway as assigned by the WSDOT Linear Referencing System.
WSDOT Stormwater Features Inventory Program
DirectionOfInventory
DirectionOfInventory
String
1
0
0
The side of the roadway as defined by the WSDOT linear referencing system where the feature occurs. Features that get tagged with this code occur ON the main traveled way (see LeftRightIndicator for features that occur alongside the main traveled way).
WSDOT Stormwater Features Inventory Program
ARM
ARM
Single
4
0
0
Accumulated Route Mile is an accrual of mileage from the beginning of a route to the end of the route as defined by the WSDOT linear referencing system (LRS).
WSDOT Stormwater Features Inventory Program
SRMP
SRMP
Single
4
0
0
State Route Mile Post. A linear referencing system used to assign a logical number to a given point along a route.
WSDOT Stormwater Features Inventory Program
AheadBackIndicator
AheadBackIndicator
String
1
0
0
Indicates that the feature occurs within a highway segment that is classified as a back equation as defined by the WSDOT linear referencing system and listed in the State Highway Log Planning Report. This results in a calculated milepost value that is the duplicate of a milepost value on the route.
WSDOT Stormwater Features Inventory Program
LRSDate
LRSDate
Date
8
0
0
The WSDOT linear referencing system (LRS) is an Agency standard for locating events along a linear route feature. This field indicates the date of the TRIPS ARM values used to create the LRS dataset that was used to document the milepost and offset of a feature.
WSDOT Stormwater Features Inventory Program
MaintenanceArea
MaintenanceArea
SmallInteger
2
0
0
WSDOT Region Maintenance Area
WSDOT Stormwater Features Inventory Program
AssetReferenceText
AssetReferenceText
String
15
0
0
AssetReferenceNumber
AssetReferenceNumber
Integer
4
0
0
AssetGUID
AssetGUID
GUID
38
0
0
StateRouteNumber
StateRouteNumber
String
3
0
0
A three digit number that identifies a road for which the State of Washington has some level of responsibility.
WSDOT Stormwater Features Inventory Program
SWAttributeVerified
SWAttributeVerified
String
3
0
0
This value indicates that a field crew from the WSDOT Stormwater Features Inventory group has performed a direct on-site evaluation and documentation of the feature’s attributes.
WSDOT Stormwater Features Inventory Program
SWLocationVerified
SWLocationVerified
String
3
0
0
This value indicates that a field crew from the WSDOT Stormwater Features Inventory group has performed a direct on-site GNSS survey of the feature’s location.
WSDOT Stormwater Features Inventory Program
ReachCode
ReachCode
String
25
0
0
Specific to the “Surface Water” discharge point subtype. A unique identifier that indicates the segment of a waterbody that the stormwater system is discharging to.
A reach code is a numeric code that uniquely labels segments of a surface waterbody. Reach codes are assigned and maintained under the authority of the United States Geological Survey and are stored in the National Hydrography Dataset.
WSDOT Stormwater Features Inventory Program
RecordCreatedBy
RecordCreatedBy
String
50
0
0
The name of the person who created the feature or most recently modified the feature’s location or attributes.
WSDOT Stormwater Features Inventory Program
20220915
Cory Simon
WSDOT ESO Stormwater and Watersheds Program
Inventory Coordinator
SimonC@wsdot.wa.gov
360-570-2589
360-570-6633
M - Th 6:00 - 4:30
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