www.sensemetrics.com sensemetrics Case Study | Savanna-Sabula Bridge Savanna-Sabula Bridge SAVANNA, ILLINOIS The Savanna-Sabula Bridge was a truss bridge connecting the city of Savanna, Illinois, with the island city of Sabula, Iowa. Finished in 1932, the bridge was replaced in 2018 with the adjacently built Dale Gardner Veterans Memorial Bridge. As is typical with the construction of bridges replacing existing bridges, the Dale Gardner Veterans Memorial Bridge was constructed while the Savanna-Sabula Bridge was still in use in order to avoid any disruption of traffic flow. One the new bridge was finished, only then was demolition of the old bridge allowed to commence. Failure Modes During Construction The primary hazard that exists anytime a bridge is built to replace an exis

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