14. Lafayette Street Bridge Donated by: Minnesota Department of Transportation (MnDOT)& Lunda Construction Original Location: St. Paul, Minnesota Year Built: 1968 Year of Fracture: 1975, girder ...

The girders are spaced at 6 ft on centers. The plate girders are made up of 1 in. thick by 9 in. wide flanges and webs of 5/16 in. thick by 39 in. deep. The bearing stiffener plates are 7/8 in. thick.

15. I-90 Mississippi River Dresbach Bridge Donated by: Ames Construction in cooperation with Minnesota Department of Transportation (MnDOT) Original Location: Over Mississippi River between La Crosse, ...

Keywords: Seismic performance. Steel plate girder bridges. Superstructures. Seismic isolation systems. End cross frames. Buckling restrained braces (BRB). Base shear. Displacement. Abstract: The end ...