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  • Historical DOT Improvement Plans

    Maps & Records
    Contact our Customer Service Counter call (520) 724-6332 or email by using our feedback form.
    201 N. Stone Ave., 5th Fl., Tucson, AZ

    Office Hours:
    Monday - Friday
    8:00 a.m. to 5:00 p.m.
    (excluding holidays)
    Transportation improvement plans include paving, grading, and drainage plans for subdivisions and offsite. DOT improvement plans are associated with Subdivisions within Unincorporated Pima County and go through a Pima County review and acceptance process. In addition, DOT improvement plans are tied in with Roads Accepted for Maintenance (RAM’s) which are approved by the Board of Supervisors.

    DOT improvement plans are added into Engineering Information Management. Note that more than one improvement plan may exist for a particular area. You can view Historical DOT Improvement Plans two ways.

    Historical Improvement Plan MapGuide Map 

    Historical DOT Improvement Plan MapGuide Map
    • Read the Disclaimer and Using Autodesk MapGuide.
    • Important: Be ready to zoom in to see the "DOT Improvement Plans - Historical" layer.
      This layer contains overlapping data. Follow instructions for using overlapping data and use the report labeled "PC DOT Hist. Improv. Plans" found on the pull-down menu in the map title bar.
    • To view go to the map link listed above.

    Lookup by Improvement Plan Number and/or Name

    To learn about options, queries, and viewing documents, see Using OnBase, Document Management System Help or issues with the program, please contact OnBase Administrator.

    Document Management System

    For plans in the Tucson City limits: City of Tucson Paving Improvement Plans.

    We also have historical improvement plans on microfiche. To check the availability of a plan that is not on-line (cannot be found via the interactive map or the document management system), please call our office at (520) 724-6332.

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    Ana M. Olivares, P.E.

    201 N. Stone Ave., 4th Fl.
    Tucson, AZ 85701

    (520) 724-6410

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