Okla. Stat. tit. 69, § 69-643.1: Circumstances under which county commissioners

authorized to enter and perform work on private property.

The board of county commissioners is authorized to enter onto

private property adjoining county roads and to perform work by

county employees or by contractors working for the county, on such

private property, when:

1. The available right-of-way does not provide enough space for

needed conservation works of improvement to diminish erosion and

siltation of the right-of-way;

2. The owner, or owners, of the adjoining property sign a

cooperative agreement permitting such works, which agreement shall

state the amount of land to be treated, and the works of improvement

to be constructed. Any work performed will be restricted solely to

that specified in the cooperative agreement;

3. The local Conservation District has approved the proposed

works of improvement; and

4. A copy of the cooperative agreement and a statement of

approval from the local Conservation District has been filed with

the records of the county commissioners in the office of the county

clerk and the cooperative agreement and statement from the local

Conservation District have become a part of the minutes of the

county commissioners' proceedings.