In 1958, five new truss spans were built in this location, using the same piers but raised 20 feet to allow navigation on the upper Mississippi River.
[3] Lead-based paint was removed from the bridge during a 2004 repainting effort and the steel grid deck was replaced in 2003.
Hennepin County contracted with Wiss, Janey, Elstner and Associates (WJE) to investigate and report on the cause and extent of damage.
The consultant's report concluded that evidence suggested the pier underwent many years, perhaps 50, of creep deflection due to sustained lateral earth pressure at the foundation which was held in check by the bearing assemblies.
The bearing assemblies ultimate strength was finally overcome sometime in 2004 which allowed the unrestrained and rapid movement of the pier.