| This article needs additional citations for verification .(November 2024) | 
| Old River Lea | |
|---|---|
|   Looking north east from its junction with the Navigation just below Old Ford Locks | |
|   | |
| Location | |
| Country | United Kingdom | 
| Physical characteristics | |
| Source | |
| • location | Lea Bridge | 
| Mouth | |
|  • location | River Lee Navigation and Bow Back Rivers | 
|  • elevation | 0 m (0 ft) | 
| Length | 3.2 km (2.0 mi) | 
The Old River Lea is the former natural channel of the River Lea below Lea Bridge, in the London Borough of Hackney. The Old River forms a large meander from the Middlesex Filter Beds Weir to rejoin the main channel of the River Lee Navigation below Old Ford Lock. [1]
The natural channel is joined by the River Lee Flood Relief Channel, and Dagenham Brook and a number of subsidiary channels to form the semi-tidal Bow Back Rivers, discharging into Bow Creek.
The natural channel forms the boundary between the London Boroughs of Hackney and Waltham Forest; and forms the eastern boundary of Hackney Marshes, and historically the western boundary of Leyton Marshes.
51°32′17″N0°1′11″W / 51.53806°N 0.01972°W