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Service Description: Layers included consist of:
a) Location of levees, dikes, roads that act as levees, and jetties and rip rap that protect land from flooding. Location of levee features was digitized from LiDAR derived products such as Hillshade and Topographic Position Index Grids. Field work and participatory mapping techniques were used to verify existence of levees as well as to clarify areas where LiDAR use was limited.
b) Polygons representing estuarine areas that are members of special districts such as districts for diking, drainage or other forms of hydromodification. Assembled from survey meets & bounds, legal descriptions, county clerk records and/or district map records.
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Layers:
Description: Layers included consist of:
a) Location of levees, dikes, roads that act as levees, and jetties and rip rap that protect land from flooding. Location of levee features was digitized from LiDAR derived products such as Hillshade and Topographic Position Index Grids. Field work and participatory mapping techniques were used to verify existence of levees as well as to clarify areas where LiDAR use was limited.
b) Polygons representing estuarine areas that are members of special districts such as districts for diking, drainage or other forms of hydromodification. Assembled from survey meets & bounds, legal descriptions, county clerk records and/or district map records.
Service Item Id: 4960d2a6b0bb4c6d8d9ced95c81145bf
Copyright Text: Oregon Coastal Management Program, NOAA Coastal Management Fellowship
Spatial Reference:
102100
(3857)
Single Fused Map Cache: false
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Spatial Reference: 102100
(3857)
Full Extent:
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Spatial Reference: 102100
(3857)
Units: esriMeters
Supported Image Format Types: PNG32,PNG24,PNG,JPG,DIB,TIFF,EMF,PS,PDF,GIF,SVG,SVGZ,BMP
Document Info:
Title: Estuarine Dikes & Levees Inventory, Current and Historic Estuarine Diking, Drainage or Special Districts, OCMP, 2011
Author:
Comments: Layers included consist of:
a) Location of levees, dikes, roads that act as levees, and jetties and rip rap that protect land from flooding. Location of levee features was digitized from LiDAR derived products such as Hillshade and Topographic Position Index Grids. Field work and participatory mapping techniques were used to verify existence of levees as well as to clarify areas where LiDAR use was limited.
b) Polygons representing estuarine areas that are members of special districts such as districts for diking, drainage or other forms of hydromodification. Assembled from survey meets & bounds, legal descriptions, county clerk records and/or district map records.
Subject: Service depicting some of the products of a 2009-2011 NOAA Coastal Management Fellowship on estuary diking in Oregon.
Category:
Keywords: District,Levee,Dike,Estuary
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