the area bounded by the East Atchafalaya Basin Protection Levee, the Mississippi River Levee, and Bayou Lafourche and extending from Morganza, Louisiana, to the Gulf of Mexico, insofar as such area is affected by the flood waters of the Mississippi River.
(33 U.S.C. 641), referred to in text, probably means the act of June 28, 1879, ch. 43, 21 Stat. 37, which enacted sections 641 to 644, 646, and 647 of this title.