1070 Twin City Power, 350 U.S. at 224.1071 Valdez, 666 F.2d at 1239 (citing Chi., M., St. P. & P. R. Co., 312 U.S. at 597); cf. United States v. Gerlach Live Stock Co., 339 U.S. 725 (1950) (finding Congress had not intended to exercise navigation servitude in acquisitions for specific dam project).