Okla. Stat. tit. 69 § 1210
Sections 1208 through 1211 shall not prevent the construction or maintenance of any culvert or driveway as a means of ingress and egress to private property, or prevent the placing of mailboxes or fences to stock-passes on any highway right-of-way. The Commission may regulate the construction and maintenance of such culverts, driveways, fences to stock-passes, and mailboxes with due regard to the safety of the traveling public and proper maintenance of the highway. No culvert, driveway, fence to stock-pass, or mailbox shall be constructed or maintained on the right-of-way of any designated state or federal highway by any person without the approval of the Commission, and the Commission may remove without notice any such culvert, driveway, fence to stock-pass, or mailbox constructed or maintained without first obtaining such approval when in its judgment such culvert, driveway, fence to stock-pass, or mailbox is dangerous to the traveling public or interferes with proper drainage or maintenance of the highway.
Okla. Stat. tit. 69, § 1210