Material Testing. Details for the material testing, along with GI information outlined above, can be found within WCC's County Road Construction Strategy. However, further to the information held within this document, relating to cores (973AR Compaction Requirements), given the large number of singular cul-de-sacs generally within developments, the developer is also required to take three pairs of cores per cul-de-sac. The core information provided by the developer, should be shown within a full ‘Field Test’, i.e. • Nuclear Density readings • Temperatures (arrival and laid) • A laying plan showing what material was laid on what day and where. If a different plant was used within a day, then this should be shown on the plan. (If this information cannot be provided, then maximum density’s will be required for each core pair). Subject to satisfactory core results, along with satisfactory highway drainage air testing, the bond will be reduced to 70% of the total bond value. Following construction of the footway up to binder course, a further 15% of the total bond value will be released. Upon completion of the development the Provisional Certificate of Completion will be issued and the bond may be reduced further, at the discretion of the engineer. During this time, known as the ‘maintenance period’, the developer is expected to arrange the adoption of both the foul and storm sewers with the relevant Water Authority. Please note the Provisional Certificate of Completion will only be issued if evidence is provided that the foul and storm sewers have either been adopted or are on maintenance with the Water Authority.
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