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| 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]
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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.
