The Courant dove into the bridge inspection story and provides a handy chart detailing the bridges that are rated poor or are at or below the rating of the Minnesota bridge that collapsed.
The Courant reveals that the bridge on route 123 over the Norwalk River received a 2006 inspection ratings on at least three structural areas at or below the rating of the Minnesota bridge. That bridge, according to the chart was built in 1860.
Last night the History channel aired a documentary about bridges collapsing, featuring the 1987 collapse of Schoharie Creek. That bridge collapse due to design failures that exposed the footings of the bridge to become exposed to scour, meaning that the sediment holding the footings was over time, eroded away. CT DOT may have examined CT bridges for scour, but a limited google search did not reveal any substantive documentation, unlike the NY DOT which has been developing inspection programs to combat scour.
