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Hardmead Lock
Hardmead Lock.jpg
Hardmead Lock
Waterway River Lee Navigation
County Hertfordshire
Maintained by British Waterways
Operation Manual
Length 85 feet (25.9 m)
Width 16 feet (4.9 m)
Fall 5 feet 6 inches (1.7 m)
Distance to
Bow Creek
22.5 miles (36.2 km)
Distance to
Hertford Castle Weir
3.8 miles (6.1 km)
Coordinates 51°48′07″N 0°00′52″W / 51.801911°N 0.014371°W / 51.801911; -0.014371

Hardmead Lock (No3) is a lock on the River Lee Navigation at Great Amwell close to the town of Ware.

The lock has a reputation as being difficult to negotiate.


The lock-keeper's cottage stands on an island formed by a section of the River Lee Flood Relief Channel which flows through an automatic sluice gate adjacent to the lock.

To the east of the lock is the Amwell Quarry nature reserve a Site of Special Scientific Interest (SSSI) and a section of the Old River Lea known as the Amwell Magna Fishery where it merges with its tributary the River Ash .

The New River flows close by to the west.

Public access

The lock is located on the River Lee Navigation towpath which is part of the Lea Valley Walk

Public transport

Ware railway station

Next lock upstream River Lee Navigation Next lock downstream
Ware Lock
2.5 miles
Hardmead Lock
Grid reference: TL3689513388
Stanstead Lock
1.0 mile
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Hardmead Lock Facts for Kids. Kiddle Encyclopedia.