identifies landslide hazard area to protect human life; avoid
property damage; and protect wetlands and critical habitat.
Explanation of Search
Yes/Check The Contour means
there is data to indicate the parcel is at possible risk for
No means there is no
data to indicate the parcel is at risk for landslides.
There are special land use requirements if a property is at
risk of landslides. Any development, encroachment,
filling, clearing or grading, building structures, impervious
surfaces, and vegetation removal shall be prohibited within
active landslide hazard areas, except as specified by Title
Potential landslide hazard areas are determined using the
Areas identified on the Coastal Zone Atlas of Washington, Volume VII, Pierce County as either U (Unstable), URS(Unstable Recent Slide), UOS (Unstable Old Slide), I (Intermediate), or M (Modified), and any adjacent areas within 300 feet.
Areas identified on the Pierce County topographic maps as having slopes greater than 20 percent, with a vertical height of greater than 20 feet, and any adjacent areas within a distance of 65 feet.
Areas that possess one or more of the landslide hazard area indicators (stratigraphy, groundwater conditions, etc.) as set forth in Section 18E.80.020 A., and any adjacent area within 65 feet.
Areas not reflected on the Coastal Zone Atlas that have been determined to be active through a geological assessment process. Areas identified on the Pierce County topographic maps as having slopes greater than 50 percent with a vertical height of greater than 100 feet, and any adjacent areas within 300 feet.
For more information on landslide hazard regulations, please check Title 18E (Chapter 18E.80 Landslide Hazard Areas).