The Environment Agency has started work on a £15m project to refurbish Boston’s Grand Sluice, helping to protect 9,000 homes and over 25,000 hectares of farmland from the devastating effects of flooding.

For 250 years the Grand Sluice has kept the tide out of the River Witham and managed water levels in the river from Boston to Bardney. To ensure the sluice can continue this vital job the Environment Agency is undertaking a refurbishment over the next four years.

The Grand Sluice has 2 main components, the pointing doors and the guillotine gates, which will be replaced. The pointing doors stop the tide coming in from the sea and keep the Witham upstream as freshwater. The guillotine gates control the river level upstream, keeping it safe for navigation and for water supply. The Grand Slu

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