Office of the Monona County Engineer, Onawa, IA No description specified. 1-2 (2 Records) Documents Results of a 1996 Phase I Cultural Resource Inventory IN the Area of Bridge FHWA 249850 0, Soldier Township, Monona County, Iowa (1996) Results of a 1996 Phase I Cultural Resources Inventory IN the Area of Bridge FHWA 2501350, Belvidere Township, Monona County, Iowa (1996)