Difference between revisions of "Michigan/Major roads/Main"

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County Highways versus County Roads

  • Michigan has an "intercounty" highway system in addition to locally maintained county roads. In both cases, naming conventions should follow highway naming by state.
    • Numbered county highways are prefixed with A through H based on geography. Naming convention should be "CR-[Letter Prefix][#]" (i.e. "CR-D19"). In all cases, local signage should be used to designate a primary name, while the county highway designation could be an alternate name if appropriate. While these roads could conceivably be classified higher, the lowest road type used should be Minor Highway regardless of appearance or functional classification.
    • A small number of counties maintain numbered county roads that are not part of the statewide A-H highway system. These roads should be named CR-[#] (i.e. "CR-388") and would typically appear as Primary Street, Street, or even Dirt Road.