NOTICE: Beginning November 2013 the City of West Linn's GIS program is migrating to a new Interactive Mapping Application. Use this link to access the new system: Click here to use MapOptix
View air photos of West Linn from as early as 1936. Click the link below to use the interactive mapping viewer, type in your address and view photography from 1936 to present day.
CLICK HERE: Historic Aerial Photography Viewer
Link to West Linn Historic Maps
Note about Pop-Ups: If you would like to print a map, you need to turn off your pop-up blocker before entering the Aerial Photography Viewer. How to turn off pop-up blockers
Disclaimer: This product is for informational purposes and may not have been prepared for, or be suitable for legal, engineering, or surveying purposes. Users of this information should review or consult the primary data and information sources to ascertain the usability of the information.
The following air photo flights are available using the application link above:
February 1996 Flood
June 1948 Flood
The 1936 photographs were taken by the Army Corps of Engineers for the Willamette Valley Project and scanned into digital format by the University of Oregon MAP Library for the City of West Linn to provide to the public on this web site in 2009. Copyright UO Libraries. More information on the UO Libraries is available on their website: http://libweb.uoregon.edu/map.
The 1948 and 1996 river flooding photographs were taken by the US Army Corps of Engineers. Coverage of the 1948 photographs are along the Willamette River only. The 1996 includes coverage for both the Willamette and Tualatin Rivers. Please contact the US Army Corpos of Engineers for more information. Web link: http://www.nwp.usace.army.mil/ec/ap.asp
The 1988 photographs were developed by Spencer B. Gross, Inc. for the City of West Linn and scanned to digital format by the City's GIS Division. The 1996 photographs were the first GIS-ready "orthophotography*" developed by the City's Engineering Division. The 2008 photographs were developed as part of the regional "orthophotography" by the Portland Metro Consortium.** The Historic Aerial Photography Viewer was developed by the City of West Linn’s GIS staff using ESRI’s ArcGIS-Server technology.
*Orthorectified Aerial Photography Defined:
An orthorectified aerial photograph is an aerial photograph geometrically corrected so that the scale is uniform throughout the photograph and can be used to accurately measure and overlay other GIS map layers including parcel lines, utility systems, etc. Elevation data from LiDAR (Light Detection and Ranging: Laser Scanning collected from an airplane) and GPS (Global Positioning System) are used to correct terrain distortion providing uniform scale and true geometry. The image is rectified and georeferenced using mathematical models of photogrammery to remove tilt, terrain, atmospheric and other digital image distortions.
**The City of West Linn is a member of the Metro Regional Air Photo Consortium which collects air photos on a yearly basis and orthorectifies these images so they can be used within the City's geographic information system (GIS). To aquire 2008 air photos for use in GIS and AutoCad softwares visit Metro's DRC: Metro Data Resource Center, Digital Aerial Photography
THESE VIEWERS ARE UNAVAILABLE AT THIS TIME
Individual Viewers, for Internal Use, Log-on Required
2008 Orthorectified Aerial Photography
1996 Orthorectified Aerial Photography
1988 Air Photo
1936 Air Photo
Use the link called "Historic Aerial Photography Viewer" at the top of this page to access the interactive viewer