Missouri State Highway System Article

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Missouri State Highway System
Interstate 44 marker U.S. Route 61 marker Route 5 marker Route A marker
Highway markers Interstate 44, U.S. Route 61, Missouri Route 5 and Supplement Route A
System information
Maintained by MoDOT
Highway names
InterstatesInterstate nn (I‑nn)
US HighwaysU.S. Route nn (US nn)
StateRoute nn
Supplemental Route:Supp-xx, SSR-xx
System links

In Missouri, odd-numbered highways run north-south and even-numbered highways run east-west (with a few exceptions, such as Route 112). Missouri also maintains a secondary set of roads, supplemental routes, which are lettered rather than numbered.

Route 366 in St. Louis

Missouri has also changed highway designations with a US route or an interstate with the same number is designated through the state (MO-40 was redesignated Route 14 to avoid duplicating numbers with US-40 which also passes through the state).

In some states (such as Arkansas), highways are allowed to be discontinuous. Missouri overlaps highways in order to maintain continuity.

The Missouri Department of Transportation routinely uses the term "Route" in reference to the names of the roads. However, Missouri statutes define them as "State Highways". Missourians may use the terms "Route" and "Highway" interchangeably when referring to a state road.

See also

References

External links