Cultural Resource Group, Louis Berger & Assoc., C.R.,IA No description specified. 1-2 (2 Records) Documents A Phase I Archaeological Investigation of a Proposed Borrow Associated with Bridge Replacement Project BROS-9043(12)--5F-43 Harrison County, Iowa (1992) A Phase I Archaeological Investigation of a Proposed Bridge Replacement (Fhwa#212240) and Limited Grading Project L-623401-2, Keokuk County (1992)