Bayswater Brook (formerly known as the Bayswater Main Drain) was a natural brook in the north-eastern suburbs of Perth, Western Australia, which discharges into the Swan River in the suburb of Bayswater. In the 1920s, due to urban development, the brook was turned into a network of drainage channels, which are partially covered and partially open. The brook's water source is runoff and groundwater. In the 1970s, the Eric Singleton Bird Sanctuary was built near the mouth of the brook. Water from the Bayswater Brook flows through the wetlands at the bird sanctuary before continuing to the Swan River. It has an average annual flow of . The Bayswater Brook catchment is the largest urban catchment in the Perth metropolitan area, with an area of . The suburbs which are in the catchment area are Bassendean, Bayswater, Bedford, Dianella, Eden Hill, Morley and Noranda. There are several lakes and parks along the Bayswater Brook. They include Browns Lake Reserve, Nora Hughes Park and Russell Street Park in Morley, and Waverley Pola Reserve in Dianella. The Bayswater Brook is the fifth highest contributor of nutrients into the Swan–Canning river system. The catchment area is on Bassendean Sands, which are poor at keeping nutrients. In 2015, the Eric Singleton Bird Sanctuary underwent a rehabilitation project to reduce the amount of nutrients and rubbish entering the Swan River from the Bayswater Brook. The City of Bayswater is working to create "living streams" and "micro wetlands" along the Bayswater Brook in order to improve water quality, attract wildlife and create new public open space. The City of Bayswater won an award in the 2018 Local Government Honour Awards for this. References External links The secret suburban stormwater drains being turned into vibrant public wetlands by ABC News Bayswater, Western Australia Morley, Western Australia Swan River (Western Australia) Swan Coastal Plain