Environment Agency
11 miles of navigable water, 2 locks, 3 named marinas and moorings. Passes Downham Market.
| Boat | Size | Fits? |
|---|---|---|
| Narrowboat | 57ft × 6ft 10in | Fits |
| Long narrowboat | 70ft × 6ft 10in | Fits |
| Widebeam | 60ft × 10ft | Fits |
| Widebeam | 60ft × 12ft | Fits |
| Dutch barge | 70ft × 14ft 6in | Fits |
Length and beam against Environment Agency lock sizes. “Some sections” means your boat is too big for at least one section or lock. Draught and headroom aren't checked here: see the table below.
Relief Channel lock 30 × 4.6 m.
Environment Agency, Great Ouse Relief Channel, last updated 26 Apr 2022. The Agency publishes lock sizes and bridge heights, not a maximum boat size.
Each opens its Check a Mooring page: what's nearby on the water and ashore.
Mapped within 150 m of the Great Ouse Relief Channel in OpenStreetMap. Volunteers map these, so there are gaps.
None mapped.
None mapped.
None mapped.
None mapped.
None mapped.
None mapped.
Yes. A 60ft × 10ft widebeam is within every published limit on the Great Ouse Relief Channel.
Yes. A 57ft × 6ft 10in narrowboat is within every published limit on the Great Ouse Relief Channel.
About 11 miles of navigable water on our map, with 2 locks mapped in OpenStreetMap.
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