BJG enquired > Can anyone clarify this for me and point to a photo that shows the > nature of the gate?
I don't know much about it, but I had a look on Google earth and compared it with Nicholsons. The latter shows Lock 9 "Rotating Sealock" but Google reveals only some wooden pilings in their high-ish water shot. I'm wondering if this construction is part weir and part rotating gate on a horizontal axis which ties in with your suggestion. It's strange one can see no part of any gate. Beeky
