United States v. 91.90 Acres of Land in Monroe Cty. (Cannon Dam), 586 F.2d 79, 87 (8th Cir. 1978) (“[T]he value of the improved property may be greater than, equal to, or even less than the property in its unimproved state.”); accord United States v. 6.24 Acres of Land (Weber), 99 F.3d 1140, 1996 WL 607162 (6th Cir. 1996) (per curiam) (unpubl.); United States v. Lewis, 308 F.2d 453, 457-59 (9th Cir. 1962); United States