Carthagena Lock

Carthagena Lock
	Below the lock
Waterway	River Lee Navigation
County	Hertfordshire; Essex
Maintained by	British Waterways
Operation	Manual
Length	85 feet (25.9 m)
Width	16 feet (4.9 m)
Fall	5 feet (1.5 m)
Distance to ; Bow Creek	17.5 miles (28.2 km)
Distance to ; Hertford Castle Weir	8.8 miles (14.2 km)
Coordinates	51°44′37″N 0°00′08″W / 51.743566°N 0.002108°WCoordinates: 51°44′37″N 0°00′08″W / 51.743566°N 0.002108°W

Carthagena Lock (No7) is a lock on the River Lee Navigation at Broxbourne

Location[]

Directly behind the lock is Carthagena Weir part of a fishery which also includes two lakes and a section of the Old River Lea.

To the east of the lock is the Nazeing Mead complex of lakes which incorporate part of the River Lee Flood Relief Channel.

Vehicular access via B194 Nazeing New Road

Pedestrian and cycle access via the towpath which forms part of the Lea Valley Walk

Next lock upstream	River Lee Navigation	Next lock downstream
Dobbs Weir Lock 0.8 mile	Carthagena Lock Grid reference: TL3791806924	Aqueduct Lock 2.0 miles

v t Locks and Weirs on the River Lea, England
Counties	Bedfordshire Hertfordshire Essex Greater London
Locks	Hertford Lock Ware Lock Hardmead Lock Stanstead Lock Feildes Weir Lock Dobbs Weir Lock Carthagena Lock Aqueduct Lock Cheshunt Lock Waltham Common Lock Waltham Town Lock Rammey Marsh Lock Enfield Lock Ponder's End Lock Pickett's Lock Stonebridge Lock Tottenham Lock Pond Lane Flood Gates Old Ford Lock Bow Locks
Weirs	Horns Mill Weir Hertford Castle Weir Hartham Weir Ware Weir Feildes Weir Dobbs Weir Carthagena Weir Kings Weir Newmans Weir Middlesex Filter Beds Weir
Hertford Union Canal (branch from Hackney Cut)	Hertford Union Bottom Lock No. 3 Hertford Union Middle Lock No. 2 Hertford Union Top Lock No. 1 Regent's Canal
Limehouse Cut (branch, at Bow Locks)	Bromley Stop Lock Britannia Stop Lock Limehouse Basin
Bow Back Rivers (branches of the Old River Lea)	Three Mills Lock City Mill Lock Carpenter's Road Lock (Under restoration, est. completion March 2017) Marshgate Lane Lock (defunct) Three Mills Wall River Weir (These rivers form the waterways within the 2012 Olympic Park - they flow into Bow Creek)