GIS Data Catalog

Steep Slope Hazard Buffer Areas

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Summary

Portion of unincorporated King County within 50 feet of identified potential steep slope hazard areas.

Steep slopes are regulated as critical areas through the King County Zoning Code (21A.24).

Development on or near steep slopes may be subject to restrictions.

Description

Portion of unincorporated King County within 50 feet of identified potential steep slope hazard areas.

Steep slopes are regulated as critical areas through the King County Zoning Code (21A.24).

Development on or near steep slopes may be subject to restrictions.

Please view associated document.

https://kingcounty.maps.arcgis.com/home/item.html?id=6d3f50f7fcac4dd2b0567606ad605bae#overview - DISCLAIMER – Potential Landslide Hazard Areas.

Layer information

Layer Name steep_slope_buffer_area
Subject Category Environment
Title Steep Slope Hazard Buffer Areas
Feature Count 954188
Feature Type Polygon
Spatial reference EPSG:2926
Control ID 2531
Place Keywords Pacific NW, King County, WA, Washington State
Theme Keywords Steep, Slope, Hazard, Critical, Enviro, Buffer
Supplemental Information None

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Attribute information

OBJECTID

From Esri

 Description

Internal feature number.

Domain

Sequential unique whole numbers that are automatically generated.
Shape

From Esri

 Description

Feature geometry.

Domain

Coordinates defining the features.
Shape.STArea()

From SQL Server

 Description

Returns the area of a geometry instance in square units, based on the spatial reference identifier (SRID) of the geometry.

Domain

Double
Shape.STLength()

From SQL Server

 Description

Returns the total length of the elements in a geometry instance.

Domain

Double

Contact information

Maintained by DLS - Permitting
Primary Paul McCombs

paul.mccombs@kingcounty.gov

Terms of Use

License Terms of use and copyright

Summary

Portion of unincorporated King County within 50 feet of identified potential steep slope hazard areas.

Steep slopes are regulated as critical areas through the King County Zoning Code (21A.24).

Development on or near steep slopes may be subject to restrictions.

Description

Portion of unincorporated King County within 50 feet of identified potential steep slope hazard areas.

Steep slopes are regulated as critical areas through the King County Zoning Code (21A.24).

Development on or near steep slopes may be subject to restrictions.

Please view associated document.

https://kingcounty.maps.arcgis.com/home/item.html?id=6d3f50f7fcac4dd2b0567606ad605bae#overview - DISCLAIMER – Potential Landslide Hazard Areas.

Contact information

Maintained by DLS - Permitting
Primary Paul McCombs

paul.mccombs@kingcounty.gov

Terms of use and copyright

License Terms of use and copyright

Change history

3/10/2026

Enhanced metadata for the following: lineage; theme keywords; description; and summary.

5/16/2019

Split apart all polygons using the PLSS sections feature Class, Then dissolved on STR code with no multipart polygons allowed.

Finally dropped all PLSS attributes to return to 0 substantive attributes for this layer.
5/15/2019

Split apart the two polygons with the greatest perimeter length.

In to many pieces.

Mostly using Townships, but the largest remaing piece I exploded, then split the largest result of the explosion, so that now the polygon with the longest perimeter is the former 3rd longest.