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Using Hydrographic data to produce a 3D model of a weir on the River Trent

Hydrographical Surveys

Hydrographical surveys (sometimes known as bathymetric surveys) are an extension of our land surveying service, providing an accurate and detailed plan of all features below the water’s surface. This type of survey is suitable for lakes, rivers, harbours, broads, reservoirs and water treatment plants up to a depth of ten metres.

 

We use a hydrographic survey to calculate the depth of the water body and measure the ground below the water. This data is translated into a Digital Terrain Model (DTM), detailing the contours of the land below the water. Sometimes called a bathymetric survey, it’s used before proceeding with dredging, building a new bridge, or directional drilling to put in place new services.

The hydrographic survey employs a lightweight, remote-controlled surveying boat fitted with GPS and echo sounders. Points are recorded at set distances, and this survey type is suitable water environments up to ten metres deep. In areas without stable GPS, a robotic total station and 360° prism is used to provide the survey data. Our surveyors undertaking the survey are Rescue 3 qualified.

This type of survey has clear safety advantages and efficiency benefits. It can be completed as a stand-alone project or as an extension to a topographical project allowing all information above and below the water to be integrated into one study. Hydrographic survey data is available in multiple of formats as needed.

Are there other uses for a Hydrographical survey?

This type of survey is useful for space calculation, for example relocating silt into an on-site lake. We have some of our bathymetric survey case studies below.

Hydrographic Survey case studies

RECENT PROJECTS

River Trent
Revitalising Water Resources: A comprehensive bathymetric survey on the Rivers Tame and Trent
Hydrographic survey at hobhole bank pumping station
Hobhole Bank Pumping Station, Boston, Lincolnshire
Multi-service survey aiding the design of new pumping station

DISCOVER MORE & GET A QUOTE

To find out more or for a project quotation, please complete the enquiry form below to contact one of our specialist surveyors. Available across our network of UK offices, our teams of surveyors share many years’ experience and are in an ideal position to discuss your project in more detail and offer the best survey solution from our broad range of complementary services.
Alternatively, to contact your local Survey Solutions office, please click here

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