River Ingrebourne

Ingrebourne Rainham Creek
Looking north from the bridge on Berkeley Drive
Location
Country	England
Counties	Greater London
London boroughs	Havering
Towns	Upminster, Hornchurch, Rainham
Physical characteristics
Source
• location	Brentwood, Essex
Mouth	River Thames
• location	Rainham Marsh, Rainham
Length	43.3 km (26.9 mi)
Discharge
• location	Gaynes Park
• average	0.33 m3/s (12 cu ft/s)
• minimum	0.06 m3/s (2.1 cu ft/s)17 August 1972
• maximum	29.0 m3/s (1,020 cu ft/s)21 November 1974
Basin features
Tributaries
• left	Weald Brook, Carters Brook, Paynes Brook

The River Ingrebourne /ˈɪŋɡərˌbɔːrn/ is a tributary of the River Thames 27 miles (43.3 km) in length. It is considered a strategic waterway in London, forming part of the Blue Ribbon Network. It flows through the London Borough of Havering roughly from north to south, joining the Thames at Rainham.