Okla. Stat. tit. 47, § 47-116.2a: Closing particular highways

Whenever the occurrence of any disaster, emergency or other

condition shall render the use of any state or federal highway or

detour dangerous to the public, or whenever the use thereof would

interfere with disaster relief or rescue work, the Director of

Highways, or such other person or employee as may be designated by

said Director, shall have authority to close such highway, or

portion thereof, as may be necessary until said emergency condition

shall no longer exist. The Commissioner of Public Safety, or any

member of the Oklahoma Highway Patrol, shall have like authority

with respect to the closing of highways for a period of six (6)

hours after the occurrence of such emergency condition, but upon

exercising such authority the Commissioner of Public Safety, or

highway patrolman, shall forthwith notify the Director of Highways

of such action.