In 1934 the "Parliamentary Standing Committee on Public Works" recommended that an outlet for the river be created to accommodate flows of up to , covering a 1-in-60-year flood. The work was partly financed by a Commonwealth Government grant with the State Government arranging for the balance. The State Government, western and eastern local councils and the Municipal Tramways Trust shared interest costs. The scheme was enacted in 1935 with the construction of the Breakout Creek (also sometimes Breakout Channel) to take the Torrens westwards to the sea, completed in 1937. The scheme involved diversion of the river at Lockleys (near Adelaide Airport), with the original channel blocked and a new channel created to the sea. The reedbeds and swamps were subsequently drained and some of their area is now the site for the suburb of West Lakes. Based on recommendations in a 1925 report on flood mitigation, work began in the 1960s on the building of the Kangaroo Creek Reservoir, opened in 1969 with a capacity of . It remains the only reservoir damming the river rather than being fed from weirs. The "River Torrens Committee" was formed in 1964 to advise the minister of works on preserving and enhancing the river's natural beauty, and developing it for recreational uses. The "River Torrens Acquisition Act 1970–72" was passed, authorising the purchase of land, in some cases back from the top of the river's banks. By 1980, further development along the riverbanks and removal of levées had reduced the outlet's capacity to a 1-in-35-year flood. A study showed that a 1-in-200-year flood would inundate 13,000 properties; so the Kangaroo Creek dam's level was raised, its spillway modified, the Breakout Creek channel capacity increased and some bridges reinforced. A development plan was approved in 1981 to purchase land along the length of the river, create a flood mitigating linear park and also to modify the Kangaroo Creek dam further. The sea outlet was enlarged to a capacity of which now covered a 1-in-200-year flood. When the O-Bahn Busway was opened, the bridges were designed to cope with this scale of flood, although the two bridges in St Peters would likely be awash. Torrens Lake The Torrens Lake was created in 1881 with the construction of a weir, landscaping of Elder Park and modification of the river's bank and surrounds into an English formal park. The lake forms a centrepiece of many