lmyers, thank you very much for that letter, very informative. Here is some more information I think might help people understand the idea of a, "river as a highway." True that there is very little state legislation on the matter, but there is no need for any. The United States Code states that:
33 USC Sec. 10 01/05/2009
TITLE 33 - NAVIGATION AND NAVIGABLE WATERS
CHAPTER 1 - NAVIGABLE WATERS GENERALLY
SUBCHAPTER I - GENERAL PROVISIONS
Sec. 10. Waters in Louisiana Purchase as public highways
All the navigable rivers and waters in the former Territories of
Orleans and Louisiana shall be and forever remain public highways.
(R.S. Sec. 5251.)
R.S. Sec. 5251 derived from act Mar. 3, 1811, ch. 46, Sec. 12, 2
Unfortunately, I think that the Taylor River is about 10 miles outside the boundary of the Louisiana Purchase, but I'll keep looking in the federal code for applicable law.