C22
140 New North Road SSCNMP C22.1 Introduction This Site Specific Construction Noise Management Plan (SSCNMP) is for the residential building located at 140 New North Road. A SSCNMP is required because construction is predicted to exceed the noise standards in CRL designation condition 31. This SSCNMP has been prepared in accordance with CRL designation condition 37 and is Appendix C23 of the Mt Eden Enabling Works Construction Noise and Vibration Delivery Work Plan (CNV DWP). It is a supplementary document that builds on the CNV DWP, and therefore directly references relevant sections of the CNV DWP to avoid repetition. The objective of this SSCNMP is to detail the best practicable option(s) (BPO) to avoid, remedy or mitigate the identified adverse effects from noise exceedances at 140 New North Road. This SSCNMP has been prepared for the Link Alliance and forms part of the Construction Environmental Management Plan (CEMP) for the Mt Eden Enabling Works. It builds on the SSCNMP previously prepared and implemented for the Mt Eden Enabling Works.
C22.2 Engagement Mt Eden Enabling Works (for information) Link Alliance representatives Duncan Whyte, Hilary Konigkramer and Richard Deane met with Ash Woods on 10 September 2019. The matters discussed included: •
An overview of the project
•
General project programme, demolition and rock breaking/blasting activities
•
Overview of the CNV DWP and this SSCNMP, communications triggers and protocol
•
Building layout and identification of any noise sensitive spaces
The ground floor of the building contains apartments, with a boarding house and additional apartments on the first floor. Figure B.8 in Appendix B of the Mt Eden Enabling Works CNV DWP shows that the west façade is predicted to be exposed to noise levels between 75 – 80 dB LAeq during the closest rock breaking activities, exceeding the 75 dB LAeq noise limit. Activity specific mitigation and management measures are included in Section 9 of the CNV DWP and not repeated here (e.g. Section 9.7 concrete and rock breaking). The building is a masonry façade, glazing and a flat steel roof. The estimated sound level difference across the façade with the doors closed is 25 – 30 decibels. The predicted construction noise effects from Table 12.1 in Section 12.1 are predicted to be typically acceptable, but with the potential for some disturbance for nearby rock breaking. Physical receiver mitigation, such as temporary relocation of affected receivers, alternative ventilation and façade sound insulation improvements, have been considered, but are not required as part of the BPO for the C3 enabling works. If Mr Woods agreed that prior communication of timeframes for works with the potential to exceed the relevant noise limits was an acceptable means of managing effects. No further activity specific consultation is necessary over and above regular communication (Section 10).
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| Mt Eden Main Works CNV DWP – Appendix C SSCNVMPs
