Historic Character Delivery Work Plan (Built Heritage Section)
4.
Management and Mitigation Measures
Methods to be implemented during construction to mitigate and manage potential impacts on built heritage during the Mt Eden Enabling Works include: • • •
Building condition surveys prior to the commencement of works; Monitoring as set out in the CNV DWP and GSMCP; and Historic streetscape elements such as basalt kerbs should be removed and stored for reinstatement where practicable.
4.1 Building Condition Surveys 4.1.1. Pre-Construction Surveys Prior to construction, building condition surveys of heritage buildings identified in the CNV DWP and the GMSCP as being potentially impacted by the works listed above in Table 3-1 will be undertaken as part of these works. The condition assessments will ascertain any pre-existing damage to a building, existing structural distress, and any potential weakness of the structure’s foundations or structural elements, as well as non-structural damage. The condition surveys will form the basis for recording buildings and recording baseline information prior to works commencing. The building condition surveys will generally be undertaken as follows (in accordance with CRL designation condition 46): • •
The building surveys will be undertaken by an independent senior qualified person. The survey shall include: • • • • •
Any information about the type of foundations; Existing levels of damage (aesthetic, superficial, affecting levels of serviceability); Whether observed damage is associated with structural damage; Susceptibility of building or structure to further movement; and Photographic evidence.
With respect to built heritage, the pre-construction condition surveys will include, as appropriate: • •
• • •
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A survey of the exterior and interior of heritage buildings. A record of the condition of buildings using photographs, annotated drawings and written records, noting any existing signs of structural distress and damage or deterioration of a non-structural nature. Consideration of the stability of any elements, including applied decorative elements or features, and any fragile elements. Any recommended remediation to secure or mitigate potential problems prior to the commencement of construction. The location of all cracks greater than 2 mm in aperture width, which shall be recorded with a positional accuracy of +/- 200mm. Installation of grid crack monitors may be required on selected readily accessible cracks with an aperture width greater than 2 mm discussed above and as determined in consultation with the Built Heritage Specialist. | Mt Eden Enabling Works
