Canal & River Trust

Hertford Union Canal

1.2 miles of navigable water, 3 locks, 0 named marinas and moorings. Passes None within a mile.

Will your boat fit?

BoatSizeFits?
Narrowboat57ft × 6ft 10inFits
Long narrowboat70ft × 6ft 10inFits
Widebeam60ft × 10ftFits
Widebeam60ft × 12ftFits
Dutch barge70ft × 14ft 6inFits

Length and beam against Canal & River Trust. “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.

Published size limits

Maximum boat sizes in metres, from the Canal & River Trust's waterway dimensions (page last edited 26 Mar 2026). “–” means the Trust doesn't give a figure.

SectionLengthBeamDraughtHeadroom
Hertford Union Canal21.954.451.32.44

Marinas and moorings

Each opens its Check a Mooring page: what's nearby on the water and ashore.

No named marinas or moorings mapped.

Services on the water

Mapped within 150 m of the Hertford Union Canal in OpenStreetMap. Volunteers map these, so there are gaps.

Water points 3

3 more without a name in OpenStreetMap.

Elsan disposal 0

None mapped.

Pump-out 0

None mapped.

Boat fuel 0

None mapped.

Rubbish disposal 0

None mapped.

Winding holes 0

None mapped.

Questions

Can a widebeam go on the Hertford Union Canal?

Yes. A 60ft × 10ft widebeam is within every published limit on the Hertford Union Canal.

Will a 57ft narrowboat fit on the Hertford Union Canal?

Yes. A 57ft × 6ft 10in narrowboat is within every published limit on the Hertford Union Canal.

How long is the Hertford Union Canal, and how many locks does it have?

About 1.2 miles of navigable water on our map, with 3 locks mapped in OpenStreetMap.