Aqueduct Lock
| Aqueduct Lock | |
|---|---|
| Looking south, the lock and the lock-keeper's cottage | |
| 51°43′19″N 0°00′51″W / 51.721937°N 0.014299°W | |
| 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 6 inches (1.7 m) | 
| Distance to Bow Creek | 15.5 miles (24.9 km) | 
| Distance to Hertford Castle Weir | 10.8 miles (17.4 km) | 
Aqueduct Lock (Number 8) is a lock on the River Lee Navigation close to Turnford.