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The use of engineering fill is an important consideration in the civil engineering and extractive industries. The increasing cost of removing material off-site or disposal of unused material, means that a great deal of effort is now taken to identify if and how these materials can be used on-site to fill in depressions or holes, create mounds or change the elevation of the ground.

The classification for engineered fill primarily follows the Highways Agency classification and is informed by expert judgement and methods used by BGS.