Manly Hydraulics Laboratory

Since its establishment in 1944, MHL has developed specialist capabilities and experience in a range of coastal, water and environmental management areas to become NSW Government’s specialist professional advisor in its core capability areas, which include:

  • flow and water quality measurement and investigations (natural and urban environments)
  • flood monitoring and warning systems
  • oceanographic, coastal, estuarine and riverine process studies
  • investigation and design of hydraulic, coastal and maritime structures.

MHL’s recognised capabilities include the use of physical and numerical models integrated with our extensive environmental data collection and management experience to maximise public value in the solutions and advice we provide.

MHL’s experienced hydrographers operate one of the world’s most comprehensive coastal and environmental data collection networks on behalf of NSW Government, hosting over 16,000 station years of continuous data extending from the 1980s.

Professional engineers and scientists utilise both numerical models and scaled physical hydraulic models in a broad range of studies. Our irregular and multi-directional wave modelling facilities and NATA accredited flow meter calibration capability are unmatched in Australia.

MHL operates on a fee for service basis through an Integrated Safety, Quality and Environmental Management System certified to AS/NZS 4801, AS/NZS ISO 9001 and AS/NZS ISO 14001, and by NATA (National Association of Testing Authorities) to AS ISO/IEC 17025. Our clients include government agencies and the private sector. MHL is a business unit within the Water Group of the NSW Department of Planning, Industry and Environment.


MHL staff gauge MHL buoy

MHL working inside confined space MHL water delivery pipe