Over time due to the build up of sediment and silt, Reservoirs can become shallow and after a while dry out. Silt and sediment is formed due to 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 other means.
With any Reservoir dredging project the first stage is always to calculate exactly how much silt has built up in the reservoir itself so you know how much silt there is to be removed. This calculation is required to establish both the best means of removal and to help understand where best to place the silt after removal. From Bathymetric surveys and silt samples, it’s possible to establish the consistency of the silt, which gives us at Heathland Group an idea to 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.
At Heathland Aquatic Engineering we use the latest technology to gather the required information about silt, this can be done in one of two ways;
- 16ft Manned Survey vessel
- Remote Survey ASV Drone
Both of these options achieve the same results and are able to give detailed information about the reservoir. 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.
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 equipment and our 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 pond construction, lake and pond maintenance or fishery and consultancy services, please email firstname.lastname@example.org or call 0800 3891990.