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Liquefaction Zones ECA
A polygon feature class that shows liquefaction zones. Used to implement and regulate the City of Seattle's Environmentally Critical Areas policies. This layer was created in... -
Environmentally Critical Area Overlay for Zoned Development Capacity Model
Environmentally critical area layer used as an overlay for the City of Seattle Zone Development Capacity Model. Areas represent the ECAs that would reduce the amount of... -
Peat Settlement-Prone Areas
Peat settlement-prone areas. Peat settlement-prone areas consist of Category I and Category II peat settlement-prone areas that are delineated on Maps A1 through A26, Peat... -
Environmentally Critical Area Overlay for Zoned Development Capacity Model
Environmentally critical area layer used as an overlay for the City of Seattle Zone Development Capacity Model. Areas represent the ECAs that would reduce the amount of... -
Potential Landslide Areas
A polygon feature class showing potential landslide areas. Used to implement and regulate the City of Seattle's Environmentally Critical Areas policies. Last updated in 2001 via... -
Historic Landslide Locations ECA
A polygon feature class showing landslide event inventory. Used to implement and regulate the City of Seattle's Environmentally Critical Areas policies. Augments the ECA.kslide... -
Riparian Corridors ECA
A polygon feature class showing Riparian Corridors in Seattle. Used to implement and regulate the City of Seattle's Environmentally Critical Areas policies. A riparian zone or... -
Wildlife Corridors ECA
A polygon feature class showing Wildlife Corridors in the City of Seattle. Used to implement and regulate the City of Seattle's Environmentally Critical Areas policies.... -
Flood Zones ECA
This layer is used by the City as an aid to evaluate construction sites for the presence of flood prone areas pertinent to Environmentally Critical Areas regulations. Areas that... -
Historic Landslide Locations ECA
A polygon feature class showing landslide event inventory. Used to implement and regulate the City of Seattle's Environmentally Critical Areas policies. Augments the ECA.kslide... -
Urban Watercourses
Perennial and intermittent natural surface water flow identified and recognized as a watercourse by the Seattle Public Utilities.This layer displays the urban watercourses... -
Landfill Areas
To implement and regulate the City of Seattle's Environmentally Critical Areas policies. See code section number 25.09.020 of the Seattle Municipal Code for a more complete... -
Wetlands ECA
A polygon feature class showing wetlands, which are those areas that are inundated or saturated by surface water or ground water at a frequency and duration sufficient to... -
Peat Settlement-Prone Areas
Peat settlement-prone areas. Peat settlement-prone areas consist of Category I and Category II peat settlement-prone areas that are delineated on Maps A1 through A26, Peat... -
Flood Zones ECA
This layer is used by the City as an aid to evaluate construction sites for the presence of flood prone areas pertinent to Environmentally Critical Areas regulations. Areas that... -
Peat Settlement-Prone Areas
Peat settlement-prone areas. Peat settlement-prone areas consist of Category I and Category II peat settlement-prone areas that are delineated on Maps A1 through A26, Peat... -
ECA Riparian Corridors
Displays areas with Riparian Corridors in the City of Seattle. See Ordinance Number: 122738. A polygon feature class showing Riparian Corridors in Seattle. Used to implement and... -
ECA Known Slide Scarps
Displays Environmentally Critical Areas (ECA) in the City of Seattle. For more information about the definition of the ECA layers, see Seattle Municipal Code section... -
ECA Flood Prone Areas
FEMA flood prone areas with 100 foot buffer. Original flood prone areas where table digitized into the City of Seattle GIS CGDB control layer in the mid 90's. Layer may be used... -
Environmentally Critical Areas ECA
Displays Environmentally Critical Areas (ECA) in the City of Seattle. For more information about the definition of the ECA layers, see Seattle Municipal Code section...
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