River Effra

Effra
Brixton Creek, New River, The Wash
Diverted overflow outlet of the Effra into the Thames, by Vauxhall Bridge, beneath Alfred Drury's sculpture of Science
Location
CountryEngland
CountiesGreater London
Physical characteristics
Source 
  locationUpper Norwood Recreation Ground, Upper Norwood, London Borough of Croydon
  coordinates51°25′02″N 0°05′29″W / 51.4171°N 0.0914°W / 51.4171; -0.0914
MouthRiver Thames
  location
historically Walworth Marsh; outlet now at Vauxhall
  coordinates
51°29′14″N 0°07′33″W / 51.4872°N 0.1257°W / 51.4872; -0.1257
Basin features
Tributaries 
  rightAmbrook

The River Effra is a former stream or small river in south London, England, now culverted for most of its course. Once a tributary of the River Thames, flows from the Effra were incorporated in the Victorian era into a combined sewer draining much of the historic area of Peckham and Brixton.