Oregon Historical County Records Guide
Benton County Records Inventory
Maps, Plans, and Drawings
Series provides a visual representation of the county and of physical structures constructed on county lands. Series includes maps, plans, and drawings that vary in size, scale, and date. Included are maps, plans, and drawings of counties and cities, election precincts, courthouses and other county buildings, cemeteries, rivers, Indian reservations, school districts, construction projects, and soil classifications. General road maps may be found in the series titled Road and Bridge Records. Technical road survey maps may be found in the series titled Road Maps and Survey Notes.
The BentonMaps Web site provides a user interface to view and query tax lot, zoning, survey documents, subdivision and partition plats, addressing, aerial photography, topography, and other digital map layers (GIS data). It also links to scanned images of assessment maps, survey plats, and subdivision and partition plats.
Records at the Benton County Courthouse, Recorder's Vault:
Willamette River Greenway Preliminary [Report-includes maps], 1975 (2 volumes).
Records at the Benton County Courthouse, Clerk's Archive Vault:
Benton County Assessors' Maps, vol. 2, 4, ca.1993 (2 binders).
Records at the Benton County Records Center:
[Assessment Maps], n.d. (2 volumes);
[Assessment Maps-with index], ca. 1974 (ca.100 maps);
Benton Government Center [Plans-rolled], 1975 (ca.30 drawings).
Records at the Avery Land Services Building, Vault:
Assessors Maps [Rolled], ca.1984-ca.1988 (.50 cu.ft.);
Courthouse [County Courthouse Plans], 1977 (ca.50 drawings);
Donation Land Claims & Township Plats Benton Co., 1858 (1 volume);
Metsker's Atlas of Benton County Oregon, 1962 (1 volume);
[Miscellaneous Flat Maps-includes topographic, soils, wetlands, flood insurance, cities, communities, etc.], ca.1947-ca.1991 (ca.200 maps);
[Miscellaneous Rolled Maps-includes Oregon State University, school bus routes, soils, railroads, contours, city boundaries, etc.], ca.1944-ca.1981 (ca.150 maps);
Pacific Highway West BPA [Bonneville Power Administration Transmission Line Maps], 1939-1968 (1 binder);
Revenue Forest Cover Type Maps [Vegetation-rolled], ca.1971 (1 cu.ft.);
Township Plats [shows land ownership], ca.1897-ca.1917 (1 volume).
Records at the Avery Land Services Building, Self Help Area:
Addresses [Maps-includes only county residences outside of cities], 1988-present (11 volumes);
Metsker's Atlas of Benton County Oregon, 1929 (1 volume); 1962 (1 volume); n.d. (1 volume);
[Miscellaneous Hanging Maps-includes soils, earthquake hazard, flood hazard, contour, Bonneville Power Administration, etc.], ca.1969-present (ca.150 maps).
Records at the Avery Land Services Building, Community Development Office:
Flood Insurance Rate Map [Federal Emergency Management Agency-Benton County], 2011 (.35 cu.ft.);
Floodplain and Floodway Maps, Historic Resources Inventory, School, Fire, and Road Districts [Maps], ca,1972-ca.1986 (1 volume).
Records at the Sunset Building, Assessment Office Lobby Cabinet:
[Assessor Maps], vol. 1-18, n.d.-present (18 volumes).
Records at the Corvallis-Benton County Public Library, Second Floor, Local Documents Area:
Benton County Map Catalog [includes assessor, zoning, urban growth boundary, city, hazard, political, resource, and transportation maps], 1996 (1 volume).
Records at the Benton County Historical Museum:
[Original Benton County Courthouse Specifications-Benton County Transfer 2006 Records], 1855 (.05 cu.ft.).
Records at the Linn-Benton-Lincoln Education Service District Administration Building, Basement Records Storage Room 3:
Metsker's Atlas of Benton County Oregon, 1962 (1 volume).
Records at the Benton County Web Site:
Assessment Maps, n.d. (Internet);
Election Maps, n.d.-present (Internet);
Natural Areas and Parks Maps [includes parks, trails, roads, and some aerial photomaps], n.d. (Internet);
Riparian and Wetlands Maps, n.d. (Internet).
Records at a Related Web Site:
Tax Assessment GIS Maps [select county], n.d.-present (Internet).