Water & Soil Engineer
- Catchment & River management
- Water and Soil resources
- Economic & Environmental assessment
- Flood & Erosion hazards
- Irrigation and Drainage
- Water Quality & Treatment
- Bridge, culvert and road protection
- Coastal and wetland investigations
Gary Williams is a self-employed consulting engineer in the field of water and soil engineering. Over the last 35 years he has worked in or for many different authorities within New Zealand as well as overseas. He has extensive experience on catchment and river management issues, including hazard assessment, design and construction of works, water and soil resource investigations, the evaluation of environmental effects and economic impacts and the management of assets.
He has been involved in major flood mitigation and erosion protection measures, including detailed investigations and design work, on many different types of rivers throughout New Zealand. He has undertaken a wide range of water and soil resource investigations, covering hydrology, flood warning and hazard assessments, sedimentation processes and gravel resources, coastal processes, environmental character of lakes, estuaries and wetlands, water quality and soil conservation. He has developed asset management approaches and techniques for river and catchment schemes, and carried out reviews for audit purposes. His experience in irrigation and drainage covers feasibility investigations, design and construction. His infrastructure work covers many different services and protection measures. He has carried out a wide range of benefit–cost studies, as well as assessments for rating and comment on the economic implications of policies.
His water supply and treatment experience is focused on small-scale local systems, which integrate into the natural environment.