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How to manage Modular Material within the Excavation?
On occasion we excavate in a carriageway or footway with a bituminous surface to find that just underneath there are cobbles, sets or other modular materials which formed the original surface which has over time been overlaid with HRA or DBM material.
We cannot ignore these situations and we should make every effort to preserve these materials which in some cases have historical value and interest. At the time of uncovering these modules you should contact the Highway Authority and inform them of the discovery and ask them how they would expect the final reinstatement to be conducted. Providing the Highway Authority are reasonable in their request you should endeavour to comply with it.