Speed Limits in The United States - Jurisdictional Distinctions - Missouri

Missouri

Statutory Speed Limits in Missouri are as follows:

• Interstate highways and freeways in rural areas: 70 MPH
• Expressways in rural areas: 65 MPH
• Interstates, freeways, and expressways in urban areas: 60 MPH
• Other numbered state-maintained rural highways: 60 MPH
• State lettered highways: 55 MPH

Freeways are defined as: "a limited access divided highway of at least ten miles in length with four or more lanes which is not part of the federal interstate system of highways which does not have any crossovers or accesses from streets, roads or other highways at the same grade level as such divided highway within such ten miles of divided highway."

Expressways are defined as: "a divided highway of at least ten miles in length with four or more lanes which is not part of the federal interstate system of highways which has crossovers or accesses from streets, roads or other highways at the same grade level as such divided highway."

Urban Areas are defined as: "an area of fifty thousand population at a density at or greater than one thousand persons per square mile."

The highways and transportation commission may raise or lower the speed limit on these highways, however no speed limit may be set above 70 MPH on a numbered highway and 60 MPH on a lettered highway.

Interstate highways have minimum speed limits of 40 MPH.