The #CoobyDam is a #rockfill #embankment dam with an #ungatedSpillway across the Cooby Creek, a tributary of #CondamineRiver, at #Groomsville in the #Toowoomba Region on the #DarlingDowns, #Queensland, Australia. The main purpose of the dam is for #potable #waterSupply of the Toowoomba region. The impounded #reservoir is called the Cooby Creek Reservoir.