Name: DAM_INUNDATION

Display Field: Name

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: Dam Inundation maps for the State of California are required by California Government Code Section 8589.5(b). Inundation potential to cause damage to life and property is mapped for individual dams. Dam inundation maps show the maximum extent of damage of a flood wave emanating from a dam failure. The map does not indicate or infer the probability of such an event occurring. This data set represents a combined, statewide shapefile of all the dam inundation boundaries in the state. It serves as a quick index to locating all dam inundation boundaries in a particular area, or the geography of a particular inundation boundary, or group of boundaries. This shapefile is updated from time to time, and is currently located in New_CD\06_CD\Data\Arc\dam_inundation_digitizing_mrg_07.shp It has a polyline geometry structure, and dam-name attribution.

Copyright Text: Inundation boundaries were developed by individual dam owners and submitted to the Office of Emergency Services for review and acceptance. The bulk of dam inundation maps were developed in the 1970's, and were submitted in paper form. In 2000, the Office of Emergency Services initiated digitization of the dam inundation map content, in order to make them useable in Geographic Information Systems. Last update was Sept 2021 from the CA Department of Water Resources (DWR).

Min. Scale: 0

Max. Scale: 0

Default Visibility: true

Max Record Count: 2000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:

XMin: 5828267.19920664
YMin: 2163545.28805523
XMax: 5990499.99088214
YMax: 2310020.88913231
Spatial Reference: 2872 (2872)

Drawing Info:

{"renderer":{"type":"simple","symbol":{"type":"esriSFS","style":"esriSFSSolid","color":[221,252,191,255],"outline":{"type":"esriSLS","style":"esriSLSSolid","color":[110,110,110,255],"width":0.7}}},"scaleSymbols":true,"transparency":0,"labelingInfo":null}

HasZ: false

HasM: false

Has Attachments: false

Has Geometry Properties: true

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Object ID Field: OBJECTID

Unique ID Field:

Name : OBJECTID

IsSystemMaintained : True

Global ID Field: GlobalID

Type ID Field:

Fields:

• NID (type: esriFieldTypeString, alias: NID, SQL Type: sqlTypeOther, length: 10, nullable: true, editable: true)
• StateID (type: esriFieldTypeString, alias: StateID, SQL Type: sqlTypeOther, length: 10, nullable: true, editable: true)
• Name (type: esriFieldTypeString, alias: Name, SQL Type: sqlTypeOther, length: 65, nullable: true, editable: true)
• DamFailure (type: esriFieldTypeString, alias: DamFailure, SQL Type: sqlTypeOther, length: 20, nullable: true, editable: true)
• Failure (type: esriFieldTypeString, alias: Failure, SQL Type: sqlTypeOther, length: 10, nullable: true, editable: true)
• Scenario (type: esriFieldTypeString, alias: Scenario, SQL Type: sqlTypeOther, length: 10, nullable: true, editable: true)
• LoadingScenario (type: esriFieldTypeString, alias: LoadingScenario, SQL Type: sqlTypeOther, length: 10, nullable: true, editable: true)
• PublishedDate (type: esriFieldTypeDate, alias: PublishedDate, SQL Type: sqlTypeOther, length: 8, nullable: true, editable: true)
• HazardClass (type: esriFieldTypeString, alias: HazardClass, SQL Type: sqlTypeOther, length: 15, nullable: true, editable: true)
• GlobalID (type: esriFieldTypeGlobalID, alias: GlobalID, SQL Type: sqlTypeOther, length: 38, nullable: false, editable: false)
• OBJECTID (type: esriFieldTypeOID, alias: OBJECTID, SQL Type: sqlTypeOther, length: 0, nullable: false, editable: false)
• Shape__Area (type: esriFieldTypeDouble, alias: Shape__Area, SQL Type: sqlTypeDouble, nullable: true, editable: false)
• Shape__Length (type: esriFieldTypeDouble, alias: Shape__Length, SQL Type: sqlTypeDouble, nullable: true, editable: false)

Templates:

Name: DAM_INUNDATION
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:

Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 5/11/2026 8:41:14 AM

Schema Last Edit Date: 2/9/2026 8:18:22 PM

Data Last Edit Date: 2/9/2026 8:18:22 PM

Supported Operations:   Query   Query Pivot   Query Top Features   Query Analytic   Query Bins   Generate Renderer   Validate SQL   Get Estimates   ConvertFormat