Where the Tent and Mersey canal passes through Alrewas in Staffordshire it is fed by the River Trent. The river passes diectly across the canal then flows down a weir.
Often the water flow is excessive and passage for boats becomes dangerous and the navigation has to be shut. 

 

 

Bagnall Lock 13

 

Alrewas Lock 12

Alrewas Weir

Wychnor Lock 11

Barton Turn Lock 10

Tatenhill Lock 9

This lock only has a drop of 3ft 6"

 

Branston Lock 8

Branston Lock Spillway
Branston Lock Spillway
Spillway
Spillway
Branston Lock 8
Branston Lock 8

 

An Archemedes Screw Water Turbine

Could something like this be used?

 

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