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River Lark

The River Lark is a tributary of the River Great Ouse and was once navigable for nearly 25 miles to Bury St Edmunds, but is now only navigable for just over 10 miles to Judes Ferry.

Things to do Nearby

Facts & Stats

10.2 miles

(16.4 km)

The length of the River Lark that is currently navigable.

10 locks

There were once 10 locks or ‘navigation weirs’ on the river.

1 lock

Today, the River Lark has just one operational lock, at Isleham, which will take boats up to 48 foot long and 10 foot wide.

Waterway Notes

Navigation Authority

Funding of waterways managed by the Environment Agency

Along with its many environmental and flood defence responsibilities, the Environment Agency is the navigation authority for 630 miles of inland waterways – such as the Thames and the Medway in the south east – and many waterways in East Anglia.

Waterway underfunding

Hundreds of miles of waterways – along with their unique heritage and habitats – are currently starved of funding and rely on constant lobbying by us to safeguard their future.

Sustainable Boating

We want boating on canals and rivers to be more sustainable and – even though the current overall contribution to UK carbon emissions is very small – we want to help reduce emissions on the waterways.

Waterways Heritage at Risk

Britain’s canals and rivers are a unique, living heritage. But that heritage is at risk – from urban development, lack of protection, loss of skills and knowledge and climate change.

You can help Save Waterways Heritage.

Waterway restoration

Restoring the UK’s blue infrastructure – our inherited network of navigable canals and rivers – is good for people and places.