If at any stage, constructing a compliant reinstatement is not considered possible, it is the undertaker’s responsibility:
to record the condition of the existing surface (ideally before excavation) and structure;
to demonstrate risk management of the works to avoid or limit damage to comply with the specification (including the use of flowable materials, or enhanced materials as per A2.3 for surface course reinstatements, to avoid disruption of the surrounding structure during compaction);
if practicable, to contact the authority and agree an appropriate reinstatement method.
Where there is no agreement, or reaching one is impractical owing to time constraints, the undertaker must provide evidence of the existing condition to the authority and explain why the reinstatement may not comply with the specification.
Where the undertaker has explained to the authority why the reinstatement may not comply with the specification:
the undertaker is under no obligation to extend the reinstatement works but must ensure that there is no edge depression (see S2.2.2) after construction;
the undertaker must repair cracking (see S12.3) and settlement beyond reinstatement limits (see S12.4) that occur during the reinstatement works.
for modular surfaces, it may be necessary to install different sized modules or cementitious infills (see A12.2.7 and A12.2.8) to minimise surface irregularities at the interfaces to meet the requirements of S2.
If, in the absence of an agreement on an appropriate reinstatement method, the reinstatement fails during the guarantee period, local resolution should be sought in the first instance, or in any case, the hierarchy of resolution via the provisions set out in S13 of the Code for the Co-ordination of Street Works and Works for Road Purposes and Related Matters should be followed (see S1.11).