I used to live near one
I used to live near one in Minden Germany. It was the only one I've ever seen. Its interesting to see more.
building it in 1911
I have much better pictures in my photo album at home, but it is definitely something worth seeing.
I found these images here: http://www.wsa-minden.de/kanalbruecken.htm but its in German so you may want to bring a long a translator.
-Steve G.
