(see comment on preceding post)
When the river Avon is behaving itself then activities like turning the trip boat round is rather run-of-the-mill as you can see. (It does have side thrusters at the bows and the stern to make it easier)
After a storm in February 2007 so much timber had been swept down the weir that the trip boat was employed in the clearance operation. To get the water this low the sluice (out of sight to the right of this picture) was opened to take the main flow.
Timber this size can make a mess of a glass fibre boat when it is travelling on the kind of current pictured yesterday.
The current U-shaped weir dates from the 1970s. Before that it was fairly straight and diagonally orientated