Thursday, 13 December 2012

AI's flow meters will need to be securely fixed

This watercourse feeds into the top of Cadhay Bog. It is fed by water from Straitgate, carried by culvert under the intervening field. The photo on the left shows the water flowing out of the culvert towards the road. Over the past few years the water has undercut the road and eroded a four feet deep trench through the pebbled subsoil. Aggregate Industries' hydrogeology consultants will be putting flow meters into watercourses originating from Straitgate in due course - the meters will have to be firmly anchored. This watercourse is recorded on the Environment Agency's Historic Flood Map, and has exceeded its capacity twice this year in July and November. It was the Cadhay Bog watercourse that flooded 50 properties at Thorne Farm Way in 2008, prompting the EA to build a flood defence scheme, completed this year, but which makes no allowance for extra run-off caused by removing all the gravel and its water retaining properties at Straitgate Farm.

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