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Reservoir Silt Surveys

Bathymetric hydrographic reservoir surveys at Heathland Aquatic Engineering, Norfolk, Suffolk & Essex






Silt can build up in Reservoirs over time

A build up of  sediment and silt can result in a reservoir becoming shallow and after a while it may even dry out. Silt and sediment is formed by debris from many sources, which generally includes organic matter such as leaves, fallen trees, decayed aquatic plant life, fish or animal waste. Certain things can play a large part in this such as soil washed in by streams and rivers. When the organic matter builds up it may eventually become necessary to remove the silt by means of dredging with mechanical equipment and by other means.

bathymetric reservoir surveys carried out by Heathland Aquatic Engineering, Norfolk, Suffolk & Essex
hydrographic reservoir surveys Heathland Aquatic Engineering, Norfolk, Suffolk & Essex
reservoir bathymetric hydrographic surveys at Heathland Aquatic Engineering, Norfolk, Suffolk & Essex

Silt surveys help establish the quantity of silt prior to dredging a reservoir

With any Reservoir dredging project the first stage is always to calculate exactly how much silt has built up in the reservoir, so you know how much silt needs to be removed.  This calculation is required to establish both the best method of removal and to help understand where best to place the silt after it's been removed from the reservoir. From Bathymetric surveys and silt samples, it's possible to establish the consistency of the silt, which gives us at Heathland Group an idea on the time frame required for the removal process.

Using equipment which is GPS enabled, we are able to generate a full report, which can clearly identify the problem areas and enables us to accurately produce quotations to carry out the clearing of unwanted silt from reservoirs.

Heathland use the latest technology for silt surveys

At Heathland Aquatic Engineering we use the latest technology to gather the required information about silt in your reservoir,  this can be done in one of two ways;

  • 16ft Manned Survey vessel
  • Remote Survey ASV Drone

Both of these silt survey options achieve the same results and are able to give detailed information about the reservoir, where the silt is and how much silt there is. Other information will be provided by the survey as well, for instance information about hard materials, such as  stone and rock and softer areas such as sand etc.

ASV drone for a remote silt survey of a the reservoir

Whereas the manned survey boat requires an access point, the ASV drone is easy to lift between two people and has minimal access requirements. In some situations the drone is also able to auto-navigate the reservoir and complete its own surveys where visual access to the entire reservoir is impossible. Heathland Group's ASV drone has been a hugely beneficial to many of our clients and is exceptionally preferred in areas where little disturbance is wanted.

We supply all the required survey equipment for silt surveys in your reservoir and our surveying services to domestic and commercial clients throughout the United Kingdom. For more information and advice about hydrographic surveys or any of our products, such as reservoir construction, lake and reservoir maintenance or fishery and consultancy services, please email [email protected] or call 0800 3891990.