10 Year Review of Monitoring System on I-35W Saint Anthony Falls Bridge

Status:  Active
Project Start Date:  04/17/2018


The monitoring system of the I-35W Bridge has been collecting data since the bridges opening in 2008. Over 500 sensors were deployed on the bridge, including vibrating wire strain gages, fiber optic strain sensors, thermistors, linear potentiometers, corrosion sensors, and accelerometers. The ten-year anniversary of the monitoring system is an appropriate moment to review the time-dependent bridge displacements, monitoring system performance, sensor viability, and provide insight on how monitoring systems might be used effectively in the future in Minnesota.

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