Okla. Stat. tit. 82, § 82-110.4: Dams subject to regulation under this act

A. Dams, together with appurtenant works, which meet the

following alternative criterion are subject to the provisions of

this act and rules promulgated by the Oklahoma Water Resources Board

pursuant to this act:

1. Dams which are or will be twenty-five feet (25') or more in

height measured from the natural stream channel to the top of the

dam; or

2. Dams which have or will have an impounding capacity of fifty

(50) acre-feet or more;

provided, that any barrier to the flow of water which does or may

impound water and which is or will be six feet (6') or less in

height, regardless of storage capacity, or which has or will have a

storage capacity of fifteen (15) acre-feet or less, regardless of

height, shall not be subject to regulation under this act unless it

is determined to have a high hazard potential classification as

established by the Board.

B. No barrier to the flow of water determined by the Board to

be designated primarily for roadfill shall be subject to regulation

under this act.

C. Gully plugs are not subject to regulation under this act.

D. Dams constructed by any agency of the United States

Government shall not be subject to regulation under this act during

or after construction while such dams remain under the supervision

of any officer or agency of the United States.