Travelers are voting Woronora Dam as the best dam near Sydney. There are 1 dam near Blue Mountains a city just 104 km from Sydney and 1 dam near Lithgow which is 144 km distant. The most popular of these are Warragamba Dam near Blue Mountains and Winburndale Dam in Lithgow. You can find 16 dams in New South Wales and 41 dams in the country of Australia. Our members favorite in New South Wales is Tantangara Reservoir and Blowering Dam is the top pick in Australia. Want more? Check out our map of dams near Sydney.