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

Warragamba Dam has reached capacity, spilling over this afternoon for the first time in four years. It's a huge turnaround from early February when the dam dropped to just 42%. Sydney's water supply rose 12% last week alone after heavy rain. www.7NEWS.com.au #WarragambaDam #7NEWS | 7NEWS Sydney

OVERFLOWING: Warragamba Dam is currently spilling the equivalent of a Sydney Harbour's worth of water a day. While forecasters say the heaviest rain has already fallen, the major flood risk will remain for residents across Sydney's west for a few days to come. The latest: http://9Soci.al/ymt750JNvMB | 9 News