How is flow estimated?

EA CLIFTON Downstream graph
EA CLIFTON Upstream graph
EA SUTTON COURTNEY GAUGE (upstream of Clifton Lock) graph

from Environment Agency Guide 2012-2013

1910: Clifton Lock & Long Wittenham in Thames Valley Villages by Charles G Harper

RIGHT bank on cut which bypasses Long Wittenham, length: 129'10", width: 19'0"
1793: Lock first suggested near Clifton Ferry.
1811:  A difficulty was that the land concerned was owned by a lunatic.
1822:  Apparently the lock was built without a weir
1835:  Weir erected
1877:  Weir enlarged
1884:  Lock cut bridges rebuilt in Oak.

1884: Clifton Lock, Henry Taunt -

Clifton Lock, Henry Taunt, 1884
Clifton Lock, Henry Taunt, 1884
© Oxfordshire County Council Photographic Archive; HT3895


Clifton Lock
Clifton Lock.

1996: Bank repair in Clifton Lock Cut

Clifton Cut Footbridge


Clifton Cut Footbridg
Clifton Cut Footbridge.

Clifton Cut Footbridge, Doug Myers © 2005
Clifton Cut Footbridge, Doug Myers © 2005

Clifton Weir Stream

Left bank weir at the head of the cut to Clifton Lock. Danger!