Columbia Slough Levees
|Feature Dataset Name
|City of Portland
|Bureau of Environmental Services
|Existing Levees in the Columbia Slough Watershed
|This layer was created to assist in coordinating development review in the Columbia Corridor to ensure the integrity of the flood management system is not compromised by development. MCDD must review development for possible threats to the system. This GIS layer includes the levees in the four Districts managed by MCDD. This layer depicts the, “Levee Alignments” which is the line working which MCDD must review development and public works projects to ensure compliance with federal levee safety standards. We hope this data sharing will help achieve compliance with ORS 195 for levee and stormwater impact reviews.
|Last Dataset Update
|Last Source Update
|Horizontal Position Accuracy
|Horizontal Position Accuracy Link
|North Bounding Coordinate
|South Bounding Coordinate
|East Bounding Coordinate
|West Bounding Coordinate
|Levee, Columbia Slough, Watershed
|Theme Keyword Thesaurus
|Portland, Multnomah County, Washington County, Clackamas County, Oregon
|Place Keyword Thesaurus
|CGIS Do not distribute without Bureau Approval
| After permission is granted by responsible bureau, these data are distributed under the terms of the City of Portland Data Distribution Policy. Care was taken in the creation of this data but it is provided "as is".
The City of Portland cannot accept any responsibility for errors, omissions, or positional accuracy.
|Source Dataset Type
| Grid: State plane coordinate system 1983(91).
Units: International feet
Datum: North American Datum of 1983/1991 (HPGN)
Liability: The City of Portland has placed restrictions on the distribution of this data due to security concerns. Access requests will be considered on a case-by-case basis. The information in this file was derived from digital databases on the City of Portland GIS. Care was taken in the creation of this file. The City cannot accept any responsibility for errors, omissions, or positional accuracy. There are no warranties, expressed or implied.
Format: Shapefile or File Geodatabase Feature Class - Data will be provided via City of Portland FTP Site.
Online Resource: http://portlandmaps.com/opendata
Online Instructions: City of Portland Public/Open Data is distributed via the PortlandMaps Open Data Site - http://portlandmaps.com/opendata. Data not available on the PortlandMaps Open Data site can be requested by contacting the City of Portland CGIS Group - email@example.com
Transfer Size: varies
SPCS Zone Identifier: 5076
|Referecne layers as used by various BES web content
|Columbia Slough Levees
|Map layers used to facilatate the permitting process
|Columbia Slough Levees
|This layer was created to assist in coordinating development review in the Columbia Corridor to ensure the integrity of the flood management system is not compromised by development. MCDD must review development for possible threats to the system.
|Name of the Levee