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Layer: Backflow Prevention Valves (ID:19)

View In:   Map Viewer

Name: Backflow Prevention Valves

Display Field: FM_number

Type: Feature Layer

Geometry Type: esriGeometryPoint

Description: These are Drainage structure retrofit devices to allow flow in one direction only. Usually placed along tidal bodies to keep high tides from flooding the adjacent roads. They could be flap gates, inline check valves, or duckbill valves. Origin: Initial dataset was requested and developed by D4 Drainage section in 2017. The starting information in the database has been collected from retrofit projects starting in 2015. There are other locations within the district where these devices have been installed in the past, Drainage will add these locations to the inventory as they research previous as-built plans.Update frequency: As needed. The inventory will be updated as new devices are installed on the field either through construction projects, pushbutton drainage contracts, and/or in-house personnel.Field list, metadata, and usage last reviewed June 2025 by D4 GIS and D4 Drainage.Drainage Questions: D4-DODesign_Drainage@dot.state.fl.us GIS Questions: D4-GISAdmin@dot.state.fl.us

Copyright Text: D4 GIS and D4 Drainage

Min. Scale: 0

Max. Scale: 0

Default Visibility: false

Max Record Count: 2000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:

Drawing Info:

HasZ: false

HasM: false

Has Attachments: false

Has Geometry Properties: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Object ID Field: OBJECTID

Unique ID Field:

Global ID Field: GlobalID

Type ID Field: County

Fields:
Types:

Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 8/4/2026 12:54:56 PM

Schema Last Edit Date: 8/4/2026 12:54:56 PM

Data Last Edit Date: 8/4/2026 12:54:56 PM

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