Friday's thunderstorms led to a storm surge from the Blackbirds Farm sewage works above and at Watford.


Fish are reported as dying in the river and Crayfish are crawling out. Particularly bad on the Carpender's Park stretch of the river.The Environment Agency is aware of the situation and working on it.


Design by LTD Design Consultants and build by Garganey Consulting. From an original concept by the Herts and Middlesex Wildlife Trust.