The Great Yarmouth Third River Crossing Development Consent Order 2020

45.  Where the undertaker culverts a relevant watercourse in carrying out a specified work, it must comply with the following requirements—

(a) where there are existing pipes entering the length of watercourse to be culverted, these are to be suitably extended and diverted to outfall into—

(i) the open channel to one side or the other of the culverted length; or

(ii) to the nearest access chamber;

(b) the material used in infilling must not contain any garden rubbish, brick rubble or other deleterious material and must be suitably compacted; and

(c) the infill material must be laid to the depth required to match the existing ground levels to either side of the infilled area.