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Sonoma County highways collection
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Collection Details
Table of contents What's This?
  • Descriptive Summary
  • Access
  • Publication Rights
  • Preferred Citation
  • Acquisition Information
  • Scope and Content of Collection
  • Indexing Terms
  • Additional collection guides

  • Descriptive Summary

    Title: Sonoma County highways collection
    Dates: 1940-1976
    Collection Number: Consult repository
    Creator/Collector: CalTrans (California Department of Transportation).
    Extent: 16 boxes
    Repository: Sonoma State University Library
    Rohnert Park, California 94928
    Abstract: These right-of-way appraisal files were developed by the California Highway Commission (CalTrans) to document the right-of-way access needed to build Highway 101 through Sonoma County. Also included are some files for Highways 12, 116 and 1. Dates range from 1940s to 1970s. These files document an important milestone in the history of Sonoma County, the creation of Highway 101, which transects the county south to north. The files include appraisals, photographs of properties, comparable property reports, economic and development appraisals, correspondence, reports, and detailed maps. The photographs provide valuable historic detail of architectural styles, automobiles, gardens, and scenes of parts of Sonoma County prior to development. The appraisal notes and reports are rich with detail and commentary on economic conditions, development plans, the impact of historic events, and the diverse inhabitants of these properties.
    Language of Material: English


    Collection is open for research by appointment.

    Publication Rights

    The library can only claim physical ownership of the collection. Users are responsible for satisfying any claimants of literary property.

    Preferred Citation

    Sonoma County highways collection. Sonoma State University Library

    Acquisition Information

    Donated by CalTrans (California Department of Transportation), 2016.

    Scope and Content of Collection

    The materials are organized into sixteen boxes, arranged geographically by highway number, then by city/town, south to north or west to east. Boxes contain economic reports, appraisals, photographs, legal documents, maps, ownership information and correspondence. There are a total of 299 folders in the 16 boxes. The Sonoma County Highways Collection was processed, and a full inventory created, by Paula Hammett and Jayelene Lyons, February-June, 2017. An additional detailed spreadsheet describing the files relating to Highway 101 through Santa Rosa, from Baker Street to Mendocino Avenue, was created by Paula Hammett.

    Indexing Terms

    California Department of Transportation.
    Land use – California – Sonoma County.
    Transportation – California – Planning.
    Transportation – California – Sonoma County – Planning.

    Additional collection guides