19K views · 153 reactions | Another day, another deluge - Sydney's near-fortnight of soaking caused Warragamba Dam to spill this morning. But, there is optimism tonight as blue skies are not far away. #9News | 9 News Sydney | Facebook

HISTORIC SNAPSHOT ~ The construction of Warragamba Dam. From 1948 until 1960 about 1,800 people from about 30 nationalities worked three shifts a day, seven days a week, to build Warragamba Dam. It was a major engineering feat of the mid 20th Century. Workers removed more than 2,300,000 tonnes of sandstone from the site. Concrete was mixed on site using 305,000 tonnes of cement and 2,500,000 tonnes of sand and gravel. Produced by TVU © WaterNSW. #FAIRMG #BCBMGM | Ask Roz Blue Mountains

HISTORIC SNAPSHOT ~ The opening of Warragamba Dam in 1960. Constructed between 1948 and 1960, the dam created capacity for a reservoir of 2,031 gigalitres and is fed by a catchment area of 9,051 square kilometres. The surface area of the lake covers 75 square kilometres of the now flooded Burragorang Valley. The resulting dam of the Warragamba River formed Lake Burragorang, which is one of the largest reservoirs for urban water supply in the world. Enhancements to the dam were completed in 2009,