For example, Interstate 84 is defined as a highway with two separate segments in Utah code, the part where I-84 is signed concurrent with Interstate 15 is only legally designated I-15. For the situations where two numbered roads share the same physical roadbed, one of the designations will have a discontinuity in the legislative designation. Since 1977, the legislative designations do not have any concurrencies. With a few exceptions, these routes do not have their numbers publicly posted. Since 1969, the block of numbers between 281 and 320 is reserved for routes serving state institutions and state parks.
There have been multiple changes to the numbering of state routes. Highways and Interstate Highways, Utah state route numbers are not designated per any consistent pattern, though there are a few regional clusters of sequentially numbered highways. With the exception of state route numbers assigned to match U.S.
The code also defines the Utah maintained portions of Interstate and U.S. The numbers and routes of all Utah highways are assigned by the state legislature, currently documented in Utah Code Title 72, Chapter 4. UDOT signs state routes with a beehive symbol after the state's nickname of the beehive state. In official documents the state of Utah uses the term "state routes" for numbered, state maintained highways, since the legal definition of a "highway" includes any public road. state of Utah, the Utah Department of Transportation (UDOT) operates a system of state routes that serve all portions of the state.