Okla. Stat. tit. 60, § 60-336: Removals in mass may be reclaimed

If a river or stream carries away, by sudden violence, a

considerable and distinguishable part of a bank, and bears it to the

opposite bank, or to another part of the same bank, the owner of the

part carried away may reclaim it within a year after the owner of

the land to which it has been united takes possession thereof.