Over an extend period of time a ponds can become shallow and eventually dry out because of the build up of sediment in the pond. Silt and sediment gets established because of debris from a number of sources, which can includes a variety of organic matter such as leaves, fallen trees, decayed aquatic plant life, fish or animal waste. Soil that has been washed into streams can then flow into the pond and will add to the build up of sediment. It often become necessary to eliminate the silt as the organic matter builds up. This can be done by means of dredging with mechanical equipment or other means.
The first stage of any pond dredging project tends to be establishing how much silt has to be removed from the pond itself. This calculation is required to establish both the best means of removal and to help understand where to dispose of the silt after removal. From Bathymetric survey and silt samples, it's possible to establish the consistency of the silt, which gives a rough estimate to the time frame required for the removal process.
At Heathland Aquatic Engineering we use the latest technology to gather the required information about silt, this is done in one of two ways using:-
- 16ft Manned Survey vessel
- Remote Survey ASV Drone
Both options achieve exactly the same results and are able to give detailed information about the pond. Other information will be provided by the survey, for instance information about hard materials, such as stone and rock and softer areas such as sand etc.
Whereas a manned pond survey boat requires an access point, the ASV drone is easily lifted by two people and has minimal access requirements. In some situations the drone is also able to auto-navigate the pond and complete its own surveys where visual access to the entire water body is impossible. The ASV drone has been a huge benefit to many of our clients and is exceptionally good in areas where little disturbance is necessary.
Using equipment that's GPS enabled, we are able to construct a full report, which clearly identifies the problem areas and enables us to accurately produce quotations to carry out the clearing of unwanted silt from ponds.
We supply all the equipment and our services to domestic and commercial clients in Norfolk, Suffolk and Essex and 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 [email protected] or call 0800 3891990.