Okla. Stat. tit. 69, § 69-1280

Department - Condemnation.

A. Outdoor advertising and property rights pertaining thereto

may be acquired by the Department of Transportation under agreement

between the Department, the owner of the outdoor advertising and the

owner of the land upon which the outdoor advertising is located if

the outdoor advertising is lawfully in existence pursuant to

Sections 1274 and 1275 of this title and located within areas

prohibited to advertising by the Highway Advertising Control Act of

1968. The compensation must be based on fair market value.

B. Outdoor advertising is a trade fixture, and owners shall be

awarded just and fair compensation for its taking.

C. If the Department and the owners are unable to agree upon

the amount of compensation to be paid by the Department, the

Department may acquire by condemnation such outdoor advertising and

property rights pertaining thereto. This right of eminent domain or

condemnation shall be exercised in the manner provided by law.

Oklahoma Statutes - Title 69. Roads, Bridges, and Ferries Page 144

D. Any outdoor advertising authorized under Sections 1274 and

1275 of this title which does not conform with standards set forth

in Sections 1274 and 1275 of this title except as provided in

Section 1278 of this title, and any outdoor advertising prohibited

by law and not subject to compensation under other terms of this

section shall be a public nuisance. The Department shall give

notice by certified mail to the owner of the sign and to the owner

of the land upon which the outdoor advertising is located, ordering

the notified owners to cause the outdoor advertising to conform with

rules relating to outdoor advertising or to remove prohibited

outdoor advertising. If the owner of the sign or the landowner

fails to act within ninety (90) days after mailing of the notice,

the Department may, at its discretion, remove the outdoor

advertising device.

E. All persons or business entities engaged in the outdoor

advertising business, which includes but is not limited to, the

erection, maintenance and selling of advertising space on and along

the interstate and federal-aid primary highways of this state,

shall, not later than October 31, 1972, furnish the Director of the

Department of Transportation a written inventory of all outdoor

advertising signs, displays or devices erected and being maintained

by the person or entity. The inventory shall include, with respect

to each such sign, not less than the following information:

1. Location and dimensions of the sign;

2. Distance from the nearest edge of the right-of-way;

3. Date erected; and

4. Name and address of the owner of the property on which the

sign is located.

F. For failure to comply with the conditions set forth in

subsection E of this section, the Department may declare such

outdoor advertising signs, displays or devices to be a public

nuisance and remove them in the manner provided by subsection D of

this section.

G. Regardless of any local ordinance requiring amortization,

the compensation provided in subsections A through C of this section

and subsections (a) through (d) of Section 1279 of this title shall

be the exclusive remedy for taking such outdoor advertising and

property rights pertaining thereto. Such compensation shall also be

required for the partial taking or diminishment of the value of such

outdoor advertising and property right caused by any local ordinance

which forces the owners of such outdoor advertising to downsize,

reduce the height or width or otherwise alter legal nonconforming

signs.