River Ravensbourne
| Ravensbourne | |
| Deptford Creek | |
| River | |
 The river in Bromley
|
|
| Country | England |
|---|---|
| London boroughs | London Borough of Bromley, London Borough of Lewisham, Royal Borough of Greenwich |
| Tributaries | |
| - left | Ravensbourne South Branch, Ravensbourne East Branch, Spring Brook, River Pool, River Quaggy |
| Towns | Bromley, Lewisham, Deptford |
| Source | Keston |
| Mouth | River Thames |
| - location | Deptford |
| Length | 17.4 km (11 mi) |
| Basin | 180 km2 (69 sq mi) |
| Discharge | for Catford Hill |
| - average | 0.43 m3/s (15 cu ft/s) |
| - max | 28.4 m3/s (1,003 cu ft/s) 9 June 1992 |
| - min | 0.09 m3/s (3 cu ft/s) 23 May 1992 |
| Discharge elsewhere (average) | |
| - Bromley South | 0.05 m3/s (2 cu ft/s) |
The River Ravensbourne is a tributary of the River Thames in south London, England. It flows into the tidal River Thames at Deptford, where its tidal reach is known as Deptford Creek.
The Ravensbourne is 11 miles (17 km) in length with a total catchment area of 180 km2. It flows through the London Boroughs of Bromley, Lewisham and Greenwich.
The Ravensbourne rises at Caesar's Well, Keston, four miles south of Bromley town centre, and flows initially in a northerly direction. For the initial third of its length the river flows across common land (including Hayes Common and Bromley Common) until it reaches the southern outskirts of Bromley town where it is joined by the Ravensbourne South Branch and the Ravensbourne East Branch, which substantially increase the flow. It then flows northwards alongside the A21, passing below Bromley town centre through Church Gardens and Glassmill Reservoir, then on into Beckenham Place Park, the last semi-natural reach of the river, then further north through Ladywell Fields, where considerable renaturalisation work has been taking place since 2007/08.
South of Bellingham, the small Spring Brook joins the Ravensbourne after flowing only about one mile (1.6 km) from the east through Plaistow and Downham; it crosses the borough boundary from Bromley to Lewisham and it follows a narrow strip of parkland named Shaftesbury Park Recreation Ground and Downham Playing Fields along its short course.
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