View In:   ArcGIS Online Map Viewer

Name: Floodplains (DPS, 2026)

Display Field: DPS_STUDY

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: The DPS floodplain map shows floodplains and other relevant drainage-related information over a Geographic Information System (GIS) map. The goal of this map is to provide engineers, planners, and property owners with useful information regarding floodplains and drainage. The map collates federal and local floodplain maps in a single resource to enhance public awareness and understanding of flood-prone areas, potential flood risks, and associated hazards within a specific region. There may be situations where:FEMA says a property is outside the SFHA, but DPS still regulates work there because of: local studies, buffers, drainage criteria, or updated hydrology. In these cases, DPS floodplains supersede FEMA floodplains. DPS Floodplain Viewer: https://experience.arcgis.com/experience/e518764ec03c46e2b605f2c8d46688f9For more information, contact: Josh Cole, Montgomery County Department of Permitting Services, MNCPPC Joshua.Cole@montgomerycountymd.gov

Service Item Id: 21231c4764b74dc89e18de552502edbf

Copyright Text: Montgomery County Department of Permitting Services (DPS)

Default Visibility: true

MaxRecordCount: 2000

MaxSelectionCount: 0

Supported Query Formats: JSON, geoJSON, PBF

Min Scale: 0.0

Max Scale: 0.0

Supports Advanced Queries: true

Supports Statistics: true

Can Scale Symbols: false

Use Standardized Queries: true

Supports ValidateSQL: true

Supports Calculate: true

Supports Datum Transformation: true

Extent:

XMin: 1187665.00675713
YMin: 470122.072966725
XMax: 1330911.76258981
YMax: 584620.22815524
Spatial Reference: 102685  (2248)  LatestVCSWkid(0)

Drawing Info:

Renderer:
Unique Value Renderer:
Field 1: TYPE
Field 2: N/A
Field 3: N/A
Field Delimiter: ,
Default Symbol:
N/A
Default Label: N/A
UniqueValueInfos:
• Value: 100 Year Floodplain
  Label: 100 Year Floodplain
  Description: N/A
  Symbol:
  Style: esriSFSSolid
  Color: [115, 178, 255, 255]
  Outline:
  Style: esriSLSSolid
  Color: [110, 110, 110, 255]
  Width: 0
• Value: 500 Year Floodplain
  Label: 500 Year Floodplain
  Description: N/A
  Symbol:
  Style: esriSFSSolid
  Color: [0, 77, 168, 255]
  Outline:
  Style: esriSLSSolid
  Color: [110, 110, 110, 255]
  Width: 0
Transparency: 30
Labeling Info:

Feature Draw Order:

N/A

Advanced Query Capabilities:

Supports Statistics: true
Supports OrderBy: true
Supports Distinct: true
Supports Pagination: true
Supports TrueCurve: true
Supports Returning Query Extent: true
Supports Query With Distance: true
Supports Sql Expression: true
Supports Query With ResultType: true
Supports Returning Geometry Centroid: true
Supports Binning LOD: false
Supports Query With LOD Spatial Reference: false
Supports Percentile Statistics: true
Supports Having Clause: true
Supports Count Distinct: true
Supports Time Relation: false
Supports Sql Format: false
Supports Query Analytic: true
Supports Query With Current User: true

HasZ: false

HasM: false

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Type ID Field: TYPE

Fields:

• OBJECTID ( type: esriFieldTypeOID, alias: OBJECTID, editable: false, nullable: false, defaultValue: null, modelName: OBJECTID )
• DPS_STUDY ( type: esriFieldTypeString, alias: DPS_STUDY, editable: true, nullable: true, length: 200, defaultValue: null, modelName: DPS_STUDY )
• ENGINEER ( type: esriFieldTypeString, alias: ENGINEER, editable: true, nullable: true, length: 200, defaultValue: null, modelName: ENGINEER )
• CREATED_BY ( type: esriFieldTypeString, alias: CREATED_BY, editable: true, nullable: true, length: 8, defaultValue: null, modelName: CREATED_BY )
• UPDATED_DATETIME_UTC ( type: esriFieldTypeDate, alias: UPDATED_DATETIME_UTC, editable: true, nullable: true, length: 8, defaultValue: null, modelName: UPDATED_DATETIME_UTC )
• TYPE ( type: esriFieldTypeString, alias: TYPE, editable: true, nullable: true, length: 255, defaultValue: null, modelName: TYPE )
• Shape__Area ( type: esriFieldTypeDouble, alias: SHAPE.AREA, editable: false, nullable: true, defaultValue: null, modelName: SHAPE.AREA, required: true )
• Shape__Length ( type: esriFieldTypeDouble, alias: SHAPE.LEN, editable: false, nullable: true, defaultValue: null, modelName: SHAPE.LEN, required: true )

Types:

ID: 100 Year Floodplain
Name: 100 Year Floodplain
Domains:
Templates:
• Name: 100 Year Floodplain
  Description:
  Prototype:
  TYPE: 100 Year Floodplain
  UPDATED_DATETIME_UTC: null
  DPS_STUDY: null
  ENGINEER: null
  CREATED_BY: null
  
  Drawing Tool: esriFeatureEditToolPolygon

---

ID: 500 Year Floodplain
Name: 500 Year Floodplain
Domains:
Templates:
• Name: 500 Year Floodplain
  Description:
  Prototype:
  TYPE: 500 Year Floodplain
  UPDATED_DATETIME_UTC: null
  DPS_STUDY: null
  ENGINEER: null
  CREATED_BY: null
  
  Drawing Tool: esriFeatureEditToolPolygon

---

Capabilities: Query

Sync Can Return Changes: false

Is Data Versioned: true

Supports Rollback On Failure: false

Supports ApplyEdits With Global Ids: false

Supports Query With Historic Moment: false

Supports Coordinates Quantization: true

Child Resources:

Supported Operations:   Query   Query Analytic   Append   Validate SQL   Generate Renderer   Return Updates   Iteminfo   Thumbnail   Metadata