The City of Corvallis publishes GIS data weekly in several formats for download; Esri file geodatabase v.10.1 (FGDB), Shapefile, Keyhole Markup Language (KML) and Drawing Exchange Format (DXF).
These files require software to use.
If you do not have GIS software, a free program, Arc Explorer, can be downloaded from Esri.
Horizontal data projection is Oregon State Plane North, international feet, NAD 1983/91 (HARN). Vertical data projection is North American Vertical Datum (NAVD88) after 2012. Review metadata files for earlier vertical datum information.
Please contact GIS, or call 541.754.1742 for more information.