How Deep Can Ground Penetrating Radar See?

When you're in need of ground penetrating radar assessment before a build or during a property inspection, you might naturally wonder how deep this technology can see and in which areas it might work best. The answer's not as straightforward as you might think. We've put together this helpful blog with all you'll need to know - so read on to learn more!

The depth to which the waves used in ground penetrating radar can see will largely depend on two factors: the type of ground substance in the area, be it soil or rock, and the frequency of the antenna used. If the ground is made of low-conductivity materials, such as granite, concrete or dry sand, ground penetrating radar can reach a depth of up to 100 feet [30 metres].
 
In areas where shale, moist clay, or other more conductive substances comprise the ground, ground penetrating radar signals may be absorbed or attenuated, meaning penetration depth might decrease significantly to 3 feet [1 metre], or even less. Materials of higher frequency don't penetrate as far due to attenuation methods dependent on frequency, but at the same time, higher frequency offers better resolution.
 
The electrical conductivity of the material is the largest factor affecting how deep ground penetrating radar can penetrate, but the transmitted centre frequency and radiated power might also impact how effective the investigation really is.

When ground penetrating radar is needed on your Wollongong site, choose Dowd's Pipe & Cable Locating. We're backed by a team with extensive experience in the industry, and we proudly work with a range of clients to assess their sites and supply and lay underground assets and drainage. We make sure we keep up to date with the latest developments in the industry, and commit to professional training and development and maintaining accreditation. We use the latest techniques and technology to locate assets and reduce risks, and minimise the costs of extensive repairs if underground assets are damaged or compromised during construction. Don't hesitate to get in touch with our team when you want reliable, safe underground asset location with us. Call Dowd's Pipe & Cable Locating on 0434 635 134.