6. Weirs at Shepperton
Aim: Manage flow
Water body: River Ash
Project description
Removal of weirs to improve fish passage and enhance upstream channel
Part of ColnCAN's Weir today:gone tomorrow programme, this project was managed by Spelthorne Borough Council & the Environment Agency and was completed in August 2016. The work included Weir notching, installation of a new control structure on an inlet to an inline lake and habitat restoration along a 600m section of the river. The weir notching reduced the impounding effect on the reach upstream, improved fish passage for all species and enabled a natural river characteristics to be restored.
If you would like to find out more about this great project and what it has acheived, Five Rivers Environmental Contracting who carried out the work have published a case study on their website.