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  • Historical DOT Improvement Plans

    Maps & Records
    Contact our Customer Service Counter call (520) 724-6410 or email by using our feedback form.
    201 N. Stone Ave., 5th Fl., Tucson, AZ

    Office Hours:
    Monday - Friday
    8:00 a.m. to 4:30 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 PimaMaps Map 

    Historical DOT Improvement Plan PimaMaps Map
    • Before using PimaMaps make sure to read the Disclaimer  
    • For more information on PimaMaps, click on PimaMaps - Main.  Here you will find the Help section, and the Quick Start Guide for tips on how to use the application, plus FAQ
    • Begin, click on the hyperlink above to open the Historical Improvement Plans PimaMaps Map. 
    • A map will open with a panel on the left side of the screen, scroll down the panel to Development then go to Development Instruments-Pima County, click the toggle button to expand the layers, check box for “DOT Improvement Plans – Historical” to view the “Map Layers”.
    • Double-click on the white title bar above the map to open the toolbar, or click on the Wrench icon in the upper right corner of the map.
    • Use the mouse to navigate around the map, left click and hold mouse to move map in the direction desired and release.
    • Zoom in, use the wheel on the mouse, move the wheel downward to magnify map until you reach the specific section of road or desired view.
    • Zoom-out, move the wheel upward to reduce map image to desired view.
    • Hover over the desired road or section, click on it to select it, and a dialog box opens. 
    • Dialog box will open giving the historical improvement plans, plan name, plan number, with three hyperlinks: “Document”, “View Additional Details” or "Edit Features".   
      • The hyperlinks will provide the following information:
        • Documents will list the historical improvement plans for the selected area or road.
        • View Additional Details will give additional information for the selected area or road. 
        • Edit Features option is not available. 
    • Select the “Document” hyperlink to view the Historical Improvement Plans list.
    • A new window will open with the historical improvement plan items connected to the road or selected area.
    • Choose a row from the list to view the documentation.
    • Documentation for the historical improvement plans will open.
    • Use the “Scroll Down” button (arrowhead facing down) in the Scroll Bar at the right side of the screen to view through the pages.  
    • Any issues contact Maps and Records at (520) 724-6410.
    • 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) 724-6410.

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    Kathryn Skinner, P.E.

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

    Phone: (520) 724-6410
    Fax: (520) 724-6439

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