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This section applies to micro trenching in flexible roads, footways, footpaths and cycle tracks (as per S8). It does not apply to micro trenching in verges (S9). Micro trenching in rigid or composite roads, footways, footpaths and cycle tracks requires approval via A9 (materials and technology).
Micro trenching is an innovative technique in which ducts or cables can be laid into a slot-cut trench up to 60 mm wide. It is cheaper, quicker and more environmentally friendly than traditional trenching.
Micro trenching may be carried out by agreement between the undertaker and the authority. The use of micro trenches cannot be unreasonably withheld by any authority and may only be denied in high duty or high amenity areas or for engineering reasons, e.g. safety, existing condition of the asset, etc.