47-11-806.

§47-11-806.


    A.  No person shall drive a vehicle over any bridge or other
elevated structure constituting a part of a highway at a speed which
is greater than the maximum speed which can be maintained with safety
to the bridge or structure, when the structure is signposted as
provided in this section.
    B.  The Oklahoma Department of Transportation and local
authorities may conduct an investigation of any bridge or other
elevated structure constituting a part of a highway, and if they
shall thereupon find that the structure cannot, with safety to
itself, withstand vehicles driving at speeds otherwise permissible
under this act, they shall determine and declare the maximum speed of
vehicles which the structure can safely withstand, and may cause and
permit suitable signs stating the maximum speed to be erected and
maintained at a distance of one hundred feet before each end of the
structure.
    C.  Where any state or federal highway shall be under
construction or repair or a detour shall have been designated by
reason of construction or repairs in progress and the Oklahoma
Department of Transportation shall have determined a maximum safe,
careful and prudent speed on the highway or detour during the period
of the construction or repairs and shall have plainly posted at each
terminus thereof and at not less than each half mile along the route
thereof the determined maximum speed, no person shall drive any
vehicle upon the portion of the highway or upon the detour at a speed
in excess of the speed so determined and posted.  Violation of the
posted speed limit in the maintenance or construction zone shall
result in the doubling of the appropriate fine.  For purposes of this
section, "maintenance or construction zone" means any location where
maintenance or construction work is actually in progress and workers
present.
    D.  Upon the trial of any person charged with a violation of this
section, proof of the determination of the maximum speed by the
Department of Transportation and the existence of the signs shall
constitute conclusive evidence of the maximum speed which can be
maintained with safety as provided in subsections B and C of this
section.