A couple prepares to board their boat along a street submerged in floodwaters at Depot Hill in Rockhampton, Queensland January 5, 2011. Australia's record floods are causing catastrophic damage to infrastructure in the state of Queensland and have forced 75 percent of its coal mines, which fuel Asia's steel mills, to grind to a halt, Queensland's premier said on Wednesday. REUTERS/Daniel Munoz (AUSTRALIA - Tags: DISASTER ENVIRONMENT)