View In:   WSDOT ArcGIS Online map viewer

Name: Noise Abatement -Built

Display Field: RouteIdentifier

Type: Feature Layer

Geometry Type: esriGeometryPolyline

Description: Noise abatement walls are free-standing barriers built parallel to a highway. They are usually found near public areas, such as parks, and residential areas. The walls range in height from 6 to 20 feet but are normally 12 to 15 feet tall. They can reduce noise levels by 10 to 15 decibels, cutting the loudness of traffic noise in half. Barriers can be formed from earth berms, or constructed of wood, stucco, concrete, masonry, metal, or other materials. This feature class contains Type I and Type II noise walls that have been constructed. This data has been synchronized with the LRS dated December 31, 2025. Data appended June 2026. Updates were provided by the Air Quality and Acoustics Program. Walls were checked using the SR View Application and corrected if needed.

Copyright Text: WSDOT ENVIRONMENTAL SERVICES - Air Quality and Acoustics Program

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Max Scale: 0.0

Supports Advanced Queries: true

Supports Statistics: true

Can Scale Symbols: false

Use Standardized Queries: true

Supports ValidateSQL: true

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Spatial Reference: 2927  (2927)  LatestVCSWkid(0)

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Labeling Info:

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Type ID Field: MATERIAL

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---

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---

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Is Data Versioned: false

Supports Rollback On Failure: true

Supports ApplyEdits With Global Ids: false

Supports Query With Historic Moment: false

Supports Coordinates Quantization: true

Child Resources:   Field Groups   Contingent Values

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