Okla. Stat. tit. 69, § 69-902: Intersection of county road and state highway -

Maintenance authority.

A. At the intersection of a county road and a state highway,

the county shall maintain the county road to the point where it

intersects with the travel lanes of the highway or the improved

shoulder. The Department of Transportation shall maintain the

existing signage at the intersections to include replacement or

relocation of stop signs and vegetation control within three (3)

feet of the stop sign whether or not the sign is within the county

right-of-way. The Department shall also maintain drainage

structures that are within the state’s right-of-way, that lie under

county roads at the intersections of county roads and state

highways. The Department may place and maintain new or additional

signs at any such intersection at the discretion of the Department.

The county shall maintain any advance warning sign and sight line

vegetation control to the intersection. The county may obtain from

the Department, at no cost to the county, replacement advance

warning signs.

B. The Department of Transportation shall maintain the

structure of bridges and overpasses where a county road crosses over

or under a state highway. The repair and maintenance of the county

road shall be the responsibility of the county.