FRENSHAM MILL
SUSTAINABILITY PROJECT
FROM HISTORIC CORN MILL TO HYDROELECTRIC HOME.
  • Home
  • Hydropower
    • Live Feed
    • Estimating power potential
    • Evaluation of alternatives
    • Process
    • Need for new channel
    • Control system
    • Time series
    • Economics of hydro
    • Highs and lows
  • Heat Pumps
    • How does a heat pump work?
    • Water source heat pump
    • Economics of heat pump
  • History
    • Historical origins
    • Victorian heyday
    • Remodelling in 1928
    • Extension & Renovation 2009/12
  • Environment
    • Fish pass
    • River bank restoration
    • Wildlife
    • Overall carbon 'payback'
  • Links
  • Blog

Fish Pass - EA design

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The EA required the installation of a fish pass to their design, as a  condition of planning approval

Challenging build

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Building the pass in soft mud with 70 tonnes of concrete was a specialist job

Ready for visitors

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The finished article - ready for visitors ( We would like to install a counter to measure the usage of the new pass and stream)

Upgraded stream

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Around 10% of the river's flow is directed down the fish pass and into an old ditch to provide a link between upstream and downstream

Gravel Pools

A series of 10 gravel pools have been installed to step down the levels to the mill pond, providing areas of gravel as potential spawning areas  - (a key test of the design will be their ability to avoid silting up)
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