1072 Commodore Park, 324 U.S. at 392-93; see, e.g., Weatherford v. United States, 606 F.2d 851, 853 (9th Cir. 1979) (holding navigational servitude applied to acquisition for purpose of relocating highway that would be submerged by construction of dam in navigable stream).1073 Commodore Park, 324 U.S. at 393.