§ 31-5-302 — Establishment of specific maximum speed limits by superintendent

Whenever the superintendent determines upon the basis of an
engineering and traffic investigation, or in the event of a
vehicle or weather emergency, that a maximum speed greater or
less than that authorized herein is safe and reasonable under
the conditions found to exist at any intersection or other place
or upon any part of the state highway system, the
superintendent, except as provided for in W.S. 31-5-303(b), may
determine and declare a reasonable and safe maximum limit
thereat, which shall be effective when appropriate signs giving
notice thereof are erected and which shall not exceed eighty
(80) miles per hour on interstate highways. The maximum speed
limit may be declared to be effective at all times or at such
times as are indicated upon the signs and differing limits may
be established for different times of day, different types of
vehicles, varying weather conditions, and other factors bearing
on safe speeds, which shall be effective when posted upon
appropriate fixed or variable signs. This section does not
grant power to the superintendent to declare statewide or
countywide maximum speed limits but grants power to declare
maximum speed limits for the public safety in localized
geographic areas.