| Dobbs Weir Lock | |
|---|---|
 Looking north | |
 | |
| 51°45′09″N 0°00′12″E / 51.752395°N 0.003307°E | |
| Waterway | River Lee Navigation |
| County | Hertfordshire Essex |
| Maintained by | Canal & River Trust |
| Operation | Manual |
| Length | 85 feet (25.9 m) |
| Width | 16 feet (4.9 m) |
| Fall | 5 feet 1 inch (1.5 m) |
| Distance to Bow Creek | 18.3 miles (29.5 km) |
| Distance to Hertford Castle Weir | 8.0 miles (12.9 km) |
Dobbs Weir Lock (No 6) is a lock on the River Lee Navigation near Hoddesdon.