Metadata: Airport Noise Contours

Airport Noise Contours

Category Zoning Code
Feature Dataset Name STAND-ALONE
Item Name airport_noise_dnl_poly_pdx
Database Type
Originator City of Portland
Bureau Bureau of Planning and Sustainability
Publication Date
Abstract 2001 Portland International Airport noise contours to be used as background for the 65 and 68 DNL line layer.
Purpose Show the airport noise dnls from which the 65 and 68 dnl lines were derived, which have Zoning Code restrictions associated.
Supplemental Information
Last Dataset Update 07/30/2021 19:43
Last Source Update 07/30/2021 08:55
Maintenance/Update Frequency none
Extent Regional (with Clark County)
Data Type
Shape Type Polygon
Feature Count 17
Horizontal Position Accuracy
Horizontal Position Accuracy Link
North Bounding Coordinate 722884.995029181
South Bounding Coordinate 696179.889266819
East Bounding Coordinate 7696236.77
West Bounding Coordinate 7636775.39700002
Theme Keyword(s) PDX,airport,dnl,noise
Theme Keyword Thesaurus
Place Keyword(s)
Place Keyword Thesaurus
Access Constraints CGIS Do not distribute without Bureau Approval
Use Constraints 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 File Geodatabase
Output Geodatabase EGH_Public
Distribution 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:
Online Instructions: City of Portland Public/Open Data is distributed via the PortlandMaps Open Data Site - Data not available on the PortlandMaps Open Data site can be requested by contacting the City of Portland CGIS Group -
Transfer Size: varies
SPCS Zone Identifier: 5076
Bureau of Planning and Sustainability
1900 SW 4th Ave, Suite 7100
Portland, OR 97201

City of Portland - BPS
Paul Cone
1120 SW Fifth Avenue, Suite #1111
Portland, OR 97204

City of Portland - BTS/CGIS
503 823-5198
503 823-9176

Web Services

Service Description Feature Access Layer
BPS_Zoning_Code__Layers City of Portland Zoning Code Layers Dynamic Airport Noise DNL Contours
BPS_Zoning_Code_Layers City of Portland Zoning Code Layers Dynamic Airport Noise DNL Contours

Attribute Tables & Domains

Table Description
Table Jurisdiction
Column Sort Column Name Column Alias Column Type Column Size Domain Value(s) Column Description
2001 noise dnl contour