Cultural Resource Group, Louis Berger & Assoc. C.R.,IA No description specified. 1-2 (2 Records) Documents A Phase I Archaeological Investigation of the Proposed Bridge Replacement (Fhwa# 235000) and Limited Grading Project 2B-300-300, Madison County,IA (1992) Technical Report of Phase I Archaeological and Architectural Survey of a Proposed Road Grading Project RS-4974(3)--61-31, Dubuque County (1993)