No real pattern exists for the numbering of highways.

This included additions and revisions that took place when US and Interstate Highway Systems were commissioned.

The Minnesota Department of Transportation (MnDOT) does not consider this a violation of the rule.

Examples include part of the Sibley Memorial Highway that was bypassed in Mendota in the mid 1995 (MN 913A, numbered for former designation MN 13), and Robert Street between I-494 and University Avenue in St. Paul and West St. Paul (MN 952, numbered for former designation US 52).

Legislative routes defined in the Minnesota Constitution were signed until 1934, when many were renumbered.