Checked
City dataMaps & Geospatial
LaneWidth
Published by City of Seattle · Updated 10/27/2026
- Last updated
- 10/27/2026
- First published 05/24/2023
- Update frequency
- Not listed
- Formats
- 7
- CSV, XLS, TXT
- Coverage
- Seattle
- City in Washington
About this dataset
View of Channelization data represents roadway paint lines, curbs, and other markings that delineate traffic lanes, bike routes, bus zones, etc. which are critical for public safety.
Common Data Layer: Common data layer created from a read only view from this feature layer. It is owned by SDOT Transportation account and will be made available in Open Data.
Refresh Cycle: None, Dynamic via AutoCAD updates
Channelization data consists of the following layers:
- Vertical Elements
- Lane Widths
- Panel Markings
- Longitudinal Markings
- Transverse Markings
- Legend and Symbols
- General Background
Files and access
Links open the official government source
- CSVdata-seattlecitygis.opendata.arcgis.comCSV
- Exceldata-seattlecitygis.opendata.arcgis.comXLS
- ArcGIS GeoServiceservices.arcgis.comJSON
- GeoJSONdata-seattlecitygis.opendata.arcgis.comGeoJSON
- File Geodatabasedata-seattlecitygis.opendata.arcgis.comZIP
- Shapefiledata-seattlecitygis.opendata.arcgis.comZIP
- KMLdata-seattlecitygis.opendata.arcgis.comKML
- Feature Collectiondata-seattlecitygis.opendata.arcgis.comTXT
- GeoPackagedata-seattlecitygis.opendata.arcgis.com
- SQLite Geodatabasedata-seattlecitygis.opendata.arcgis.com
- ArcGIS Hub Datasetdata-seattlecitygis.opendata.arcgis.comWeb page
Links open outside websites we do not control.
Frequently asked questions
- Who publishes LaneWidth?
- City of Seattle publishes this dataset on Data.gov.
- How often is it updated?
- The publisher does not list a schedule. The last update was on 10/27/2026.
- How do I download it?
- It is available as CSV, XLS, JSON, GeoJSON, ZIP, KML, TXT. Use the links in Files and access, which open the official government source.
Where this catalog comes from
- Data.gov CatalogU.S. General Services Administration
- State and local open data portalsSocrata Discovery API
- State and city CKAN portalsCalifornia, Virginia, Boston, Houston and more
- Government ArcGIS Hub sitesCity and county GIS data
Catalog checked 10/30/2026
We list dataset descriptions only. Downloads and APIs link straight to the official government source, which holds the current version and its terms of use.
Source: Data.gov · Last updated 10/30/2026 · Listing only; the data stays with the publisher
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