Upon the completion of the improvement, the governing body of the city or the board of county commissioners shall determine whether or not such work has been completed in accordance with the plans, profiles, specifications and contract therefor, and if found to be in compliance therewith, shall accept the same; and when it is so accepted, such action shall be conclusively binding upon all persons interested and upon the Court.
Okla. Stat. tit. 69, § 1329