Road Naming and Numbering

Road Numbering

State Road numbers are assigned by FDOT and County Road numbers by the counties. U.S. and Interstate numbers are approved by the American Association of State Highway and Transportation Officials (AASHTO). State Road numbers should conform as much as possible to Section 335.08 F.S.:

Florida Statute 335.08 – Determination of Road Number.

  1. The department is authorized to number and renumber the roads of the State Highway System and to advise the counties and municipalities on the numbering of the roads in their respective road systems.
  2. The department may establish a systematic numbering plan, giving even numbers to roads extending in the general direction of east and west, and odd numbers to roads extending in the general direction of north and south
    Source: Florida Legislature

Every State Road must have a State Road (SR) number. Any County Road may have a County Road (CR) number, but is not required SR-Numbering-Mapto do so. Every SR and CR number that is in use must apply to only one road. This road may be discontinuous, but two separate segments with the same SR or CR number must have a logical and sequential connection between them. A road must never split into two different roads with the same SR or CR number, unless it is to allow for a one-way pair to connect to a two-way road. Currently there is no minimum length requirements for a state road.


Retaining the Road Number from the Previous System Following a transfer, a road may retain the same road number but with a different prefix (e.g., change from CR-99 to SR-99), unless this results in duplicate numbers for different roads. In such cases, TDA and the District shall locate and assign an appropriate vacant State Road Number.




Interstate establishment requires Federal Highway Administration (FHWA) and the American Association of Safety and Highway Transportation Officials (AASHTO) approval. Corridors must be built to interstate standards. See the Transportation System Designations and Road Jurisdiction Transfer Handbook for the steps.


    Consists of designating a transportation facility, contained in an act of the Legislature, for honorary or memorial purposes or to distinguish it as a particular facility. The Florida Legislature designates memorial roadways based on recommendations from a city or county commission, individual state agency, or civic groups. Memorial Roadway Designations are not maintained by the TDA Office. Additional information can be found on the Systems Implementation Office’s Memorial Roadway Designations web page.


    Local entities are not required to adhere to the State Road Numbering System and guidance for local road naming is provided in Florida Statutes for the situations to follow. The District should encourage and implement methods to coordinate with local entities through signed petitions, public meetings and updating all parties involved (law enforcement, 911 responders, utility providers, FDOT, residential and commercial property owners, etc.); should the road number change.


    Local road names are the jurisdiction of the local government:

    a. County: Florida Statute 336.05: “The commissioners are authorized to name and rename streets and roads, except State Roads designated by number by the department, lying outside the boundaries of any incorporated municipality.”

    b. Municipality: Florida Statute 166.021: “Municipalities shall have the governmental, corporate, and proprietary powers to enable them to conduct municipal government, perform municipal functions, and render municipal services, and may exercise any power for municipal purposes, except when expressly prohibited by law.”

    c. Bridges: For state owned bridges, the legislature has the authority to officially name a bridge. This requires a bill that would be signed by the Governor. This would apply to Interstates, U.S. Routes and State Routes. Bridges on County highways or local roads could be named by the respective owners.


    See the Transportation System Designations Road Jurisdiction Transfer Handbook for process steps.


    If a realignment or transfer involves redesignating an existing state road off of the State
    Highway System (SHS) to another road system and/or changing an existing State Road
       Such a transportation facility may not be redesignated or relocated until after a
       public hearing is conducted by the department in each county affected. Reasonable
       notice of the hearing shall be published in a newspaper of general circulation in
       such county 14 days prior to the hearing in addition to any other notice required by
       law. Any interested party shall have the opportunity to be heard either in person or
       by counsel and to introduce testimony in such person’s behalf at the hearing.

    The District must advertise a public hearing on the Department’s Public Meeting Notices
    website and in the Florida Administrative Register (per F.S. 120.525), and in a newspaper
    of general circulation (per F.S. 335.02). The District Public Information Officer will assist in
    publishing the notice on the FDOT website. A hearing must be conducted in each county
    affected per Florida Statute. For Road Jurisdiction Transfers, the public hearing
    requirement is for State-to-Local only. For Local-to-State, it is encouraged that the local
    entity hold a public hearing, but it is not required. With appropriate coordination, a
    public hearing required for State-to-Local Road Jurisdiction Transfer may be held in
    conjunction with a public hearing held by the local entity, provided the District notices
    the hearing in accordance with F.S. 120.525 and F.S. 335.02.

    For additional information, see the Public Involvement Handbook, Chapter 7, Public Hearings.




    After it has been determined that a road number will change, the District should send notices to emergency service providers, the Post Office, and other interested parties. The number of notices/meeting-places advertised is at the discretion of the District and may depend on general acceptance of the project by the local citizens, the number of people affected, and their familiarity with the change. If the City/County is transferring a road to the State, the District can suggest notifications be sent to emergency service providers, the Post Office, and other interested parties, but cities/counties are not required to follow FDOT’s advice.

    The District should maintain all pertinent information about the road number change in its project files for historical reference.

    For additional information or to submit a data request, please contact:
    Transportation Data Inventory
    Florida Department of Transportation
    Transportation Data and Analytics Office
    605 Suwannee St., MS 27
    Tallahassee, FL 32301