EJE - Sanitary canal Bridge
Photo taken by Douglas Butler in June 2013
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BH Photo #344013
As far as I know this was never a bridge, per say. It was a dam across a special narrow section of the canal meant to be used as an emergency shut-off device if the gates of the locks ever failed. The through-truss section was fixed in place parallel with the centerline of the canal and the dam would swing across the canal underneath it and shut off the flow of water. It was literally a butterfly valve.