Liberty Memorial Bridge, Spanning Missouri River at I-94, Bismarck, Burleigh County, ND
Significance: The Liberty Memorial Bridge is a three-span, Warren-Turner through truss bridge, a variation of the Warren through truss designed by C.A.P. Turner. This was the first highway bridge over the Missouri River constructed in North Dakota. It was also the only Warren-Turner truss bridge to be constructed in North Dakota, or elsewhere. Despite Turner's novel design, this variation of the Warren truss had little impact on American engineering.
Survey number: HAER ND-7
Building/structure dates: 1920-1922 Initial Construction
Building/structure dates: 1991 Subsequent Work
Building/structure dates: 2008 Demolished
Building/structure dates: 1955