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Notice

Prolonged Dry Weather Restrictions Penton Hook to Shepperton 2026: river restriction notice

Published 31 July 2026

When

9:30am on Monday 3 August 2026 until further notice.

Where

Penton Hook Lock to Shepperton Lock.

Details

Due to prolonged dry weather, sustained high temperatures and reduced river levels, temporary navigation restrictions are being introduced between Penton Hook, Chertsey and Shepperton Locks. These measures are necessary to conserve water resources, maintain navigable water levels and support essential public water supply abstractions. The Environment Agency is actively managing available water resources to balance the requirements of navigation, the environment and drinking water supplies.

Restrictions to Navigation

From Monday 3 August, the following restrictions to navigation will be in place:

  • lock passages will be restricted to one upstream and one downstream movement every 30 minutes during Lock and Weir Keeper hours.

  • Lock and Weir Keepers will coordinate vessel movements and pack locks wherever possible to maximise the number of craft passing through each lock cycle and minimise water loss.

  • overnight lock closures will be introduced to allow affected reaches to recover and recharge. Lock gates will be closed and chained from 6pm to 9:30am.

  • boaters are advised to plan their journeys carefully and ensure suitable overnight moorings can be reached before lock closure times.

  • boaters can use the lock laybys for mooring during overnight closure periods, free of charge.

These arrangements will remain under regular review and may be amended in response to river conditions and water resource requirements. Further updates will be issued, as necessary.