15 datasets found
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City
ECA Flood Prone Areas
City of Seattle —
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... -
Topography Spot Elevations
District of Columbia —
Mass Points (2008). The dataset contains DTM masspoints derived photogrammetrically to support 2’ contours. Masspoints and breaklines were compiled from Spring 2008... -
City
ECA Peat Settlement Prone Areas
City of Seattle —
Peat-settlement-prone areas (sites containing peat and organic soils that may settle when the area is developed or the water table is lowered).Peat settlement-prone... -
City
ECA Known Slide Scarps
City of Seattle —
Displays areas of landslide events based on a Seattle Landslide Study completed by Shannon and Wilson.A polygon feature class showing landslide event inventory. Used... -
City
Contour Lines 1993
City of Seattle —
Updated contours from 2021 here. A line feature class showing 2 ft. and 10 ft. elevation contours. Derived from 1993 digital orthophotos - has not been updated. -
City
ECA Liquefaction Prone Areas
City of Seattle —
Displays areas with liquefaction zones.A polygon feature class that shows liquefaction zones. Used to implement and regulate the City of Seattle's Environmentally... -
Topography Hydro Breaklines - 2018
District of Columbia —
The dataset contains hydro-breaklines that were collected in 2D as vector line work, using a combination of classified lidar dataset, intensity images, shaded relief... -
City
ECA Potential Slide Areas
City of Seattle —
Displays areas with potential landslides in the City of Seattle.A polygon feature class showing potential landslide areas. Used to implement and regulate the City of... -
City
ECA Known Slide Events
City of Seattle —
Displays areas of landslide events based on a Seattle Landslide Study completed by Shannon and Wilson.A polygon feature class showing landslide event inventory. Used... -
City
Seattle Shoreline
City of Seattle —
The shoreline essentially follows the 8 foot contour line, except where the ortho offered further clarification. That 8 foot contour line matches closest to what... -
City
ECA Steep Slope
City of Seattle —
Displays areas with 40% steep slope or greater in the City of Seattle.A polygon feature class showing areas with an incline of 40% or more (10 feet of vertical rise... -
City
ECA Wetlands
City of Seattle —
Displays areas with wetlands in the City of Seattle.A polygon feature class showing wetlands, which are those areas that are inundated or saturated by surface water... -
Topography Hydro Breaklines
District of Columbia —
The dataset contains hydro-breaklines that were collected in 2D as vector line work, using a combination of classified lidar dataset, intensity images, shaded relief... -
Topography Breaklines
District of Columbia —
Breaklines (2008). The dataset contains breakline features derived photogrammetrically to support 2’ contours. Masspoints and breaklines were compiled from Spring 2008... -
City
Urban Watercourses
City of Seattle —
This layer displays the urban watercourses showing open stream channels and flow within culverts, drainage laterals, and drainage mainlines. The Washington State...
15 datasets found