§51-3-3. Jurisdiction over watercourses.
When any river or watercourse lies between any counties in
this state, the circuit and county courts and justices for the
counties on each side, respectively, shall have concurrent
jurisdiction over so much thereof as is opposite said counties.
And the circuit and county courts and justices for counties lying
on the waters bounding the state shall have jurisdiction
respectively over such waters opposite said counties, so far as the
jurisdiction of this state extends.