The Cooks River is a 23 km river that runs from Botany Bay to Yagoona, passing through the Strathfield Council area. From the junction of Coronation Parade and Punchbowl Road in Belfield to Water Street Strathfield South, the river is a concrete canal. The river separates at Water Street, with one section of the River diverted and finishing at Coxs Creek Greenacre with the main river continuing through Strathfield South and then to Freshwater Park. The Bay to Bay Walkway and Cycleway is built alongside the river.
The Cooks River at Strathfield is in the upper reaches of the catchment and is located near the end of the system. The river in Strathfield was historically described as a ‘chain of ponds’ because the river was located on low lying land and appears as a series of small ponds and land depressions, rather than as an open river. When it rained, the ponds would fill, but then become stagnant water. With sun evaporation, they would empty until another rainfall. The stagnant ponds were a breeding ground for mosquitos, causing frequent outbreaks.
There were many demands, particularly in the 1920s, to concrete the Strathfield section of the Cooks River, mainly to control flooding and mosquitos. The concrete canalling of the River commenced as a Government Depression work scheme in the 1930s. By the late 1940s, the canal had been built from Coronation Parade to Water Street. However, the extensions from Water Street to Freshwater Park were not built until the 1960s, after significant lobbying by Strathfield Council and the Cooks River Valley Association to the former Metropolitan Water & Sewerage Board (now Sydney Water).
The course of the natural river was changed and straightened when the river was canalled.
To many locals, the Cooks River appears to always be empty. However, during periods of heavy rainfall, water in the river from rainfall and stormwater runoff from catchment land causes water to rise quickly with move with rapid speed.
Prior to the concrete canalling of the river, flooding of land and deaths by drowning in the Cooks River in the Strathfield area was not uncommon. As a result of storms and heavy rain, water would rise quickly and anything (such as cars, bridges or animals etc) or any person caught in the path of fast moving water could be swept away. Two of the more tragic stories of death by drowning in the Cooks River, involve young children.
In February 1935, a fierce storm caused flooding and lightning damage across Sydney, resulting in the death of 12 year old Ronald Gardiner at Cooks River at Enfield. The boy attempting to collect driftwood from the water was swept away by the currents and drowned. It appears that the same storm swept away and destroyed the wooden bridge at Water Street Strathfield South, which crossed the river.
In November 1947, Sydney experienced a violent tropical storm with winds reported of 60 miles (96km) an hour. Two brothers, William (aged 11 years) and John (aged 6) were both drowned in the Cooks River at Enfield. John was swept into the river and his brother drowned trying to rescue his little brother.