Okla. Stat. tit. 66, § 66-125a: Railroads - Highway crossings - Safety devices

Whenever the public authorities having jurisdiction and control

over any public highway or street in this state shall deem that the

safety of lives and property at any railroad intersection with any

highway or street, shall so require, such public authorities as are

hereby authorized and empowered to construct or install, or to order

the company owning such railroad so intersected, to construct or

install, and thereafter maintain and operate, an automatic or

mechanically operated barricading device, which, when giving

warning, shall become a barrier in such highway or street; provided,

however, that before any such device is constructed or installed,

maintained and operated at a railroad intersection, the detailed

plans of such device, with a description of the proposed mode of

operation thereof, and a map showing the proposed location of the

same, shall be first submitted to, and approved by, the State

Highway Commission of Oklahoma.