Okla. Stat. tit. 69, § 69-610: Joint construction of bridges by county, city and public

service corporation.

Any county, by act of the board of county commissioners, and any

municipality within such county, by a majority of its governing

board, and any public service corporation organized under the laws

of the State of Oklahoma, may all or either of them jointly contract

for the construction and maintenance of bridges across streams

running through such county.