Letter dated January 20, 1911 from E. J. Miller, Minnesota Highway Department to Stillwater City Engineer J. Abercrombie regarding the life expectancy, suggested method of repars and posted speed and wieght limits of the existing Stillwater pontoon bridge
Letter dated March 4, 1929 from C. M. Babcock, Commissioner of Highways to Hon. August H. Andresen, House of Representatives thanking him for his aid in securing the passage of Public Law No. 740.
Letter dated January 9, 1925 from Stillwater City Attorney Edwin D. Buffington to Hon. George Sullivan regarding correspondence to and from Wisconsin Highway Commission regarding interstate bridge.
Letter dated February 5, 1887 from Brig. General, Chief of Army Engineers James C. Duane to Senator Dwight M. Sabin indicating that the War Department has no authority over shortening the pontoon draws, as the bridge was built under the authority of the Minnesota Legislature.
Letter dated March 6, 1929 from August Andresen, House of Representatives to Stillwater City Attorney Edwin D. Buffington regarding a letter from Mr. Babcock relating to the construction of the Stillwater bridge.
Letter dated January 17, 1887 and envelope from Senator Dwight M. Sabin to Stillwater City Engineer Lewis W. Clarke assuring full support of the bridge project.
Joint Resolution State of Minnesota S. F. 12 Relating to Interstate Bridges, introduced by Senator Sullivan on January 8, 1925 and passed on January 25, 1925 details the financial commitment of both states in the construction, repair and maintenance of interstate bridges.
Draft of a bill dated January 20, 1925 authorizing the Wisconsin State Highway Commission to construct, re-construct, repair, maintain and operate inter-state bridge.
Congressional Act H. R. 13502, dated January 8, 1929 authorizing the State of Minnesota and the State of Wisconsin to construct, maintain and operate a free highway bridge across the Saint Croix river at or near Stillwater, Minnesota.
Resolution dated December 17, 1929 authorizing the City of Stillwater to make and deliver a release of certain property for highway purpose to St. Croix County, Wisconsin.