Carthagena Lock

Carthagena Lock is a lock on the River Lee Navigation that regulates water flow and has a chamber about 26 meters long and just under 5 meters wide. The structure is notable for two associated lakes and a section of the old river channel that together form a flood management system.

The lock was built in the 19th century as part of the River Lee Navigation system to enable commerce between London and Hertfordshire. It grew into an important junction within a network of waterways that served the region's economic connections.

The lock serves as a stop along a regional walking route that connects people to the waterways of Hertfordshire and their role in local life.

The site is reachable by car via B194 Nazeing New Road or on foot through the riverside towpath. Broxbourne railway station is nearby and offers a convenient travel option if you do not drive.

The two lakes connected to the lock were originally designed as compensation reservoirs to manage water level changes. Today these waters form an ecosystem with the river section that attracts birdwatchers and nature enthusiasts.

Location: Hertfordshire

GPS coordinates: 51.74360,-0.00211

Latest update: December 14, 2025 18:03