This is a temporary bridge that allowed traffic on the I-80 during the replacement of existing bridges.
This bridge was in service during 2018 and was monitored by MIRA Systems during this period.
It was a Bailey type bridge with a 60m span, with an asymmetric intermediate support.
Thirty-five sets of sensors were installed, which included strain gauges, accelerometers, ambient temperature, surface temperature and relative humidity.
To determine the existing actions on the bridge, a dynamic vehicle weighing system at the bridge entrance and a weather station were installed.
The entire system corresponds to a newly developed monitoring version, with unique features in terms of system architecture and proprietary communication protocol from MIRA Systems.
Internal communications are made through a networked system and information is sent to the servers via a gateway.
This new system differs profoundly from the status quo by using data loggers.
The monitoring had a large variation in weather conditions, a very high traffic volume, over 50,000 vehicles / day, a high percentage of heavy vehicles and a high speed of traffic. Therefore, this was a major test of the system as it allowed for improvements in its robustness and reliability.