C31 32 Normanby Road SSCNVMP C31.1 Introduction This Site-Specific Construction Noise and Vibration Management Plan (SSCNVMP) is for the commercial building located at 32 Normanby Road. A SSCNVMP is required because construction is predicted to exceed the Project Standards in CRL designation conditions 31 and 33. This SSCNVMP has been prepared in accordance with CRL designation condition 37 and 38 and is Appendix C31 of the Mt Eden Main Works Construction Noise and Vibration Delivery Work Plan (CNV DWP). It is a supplementary document that builds on the Project CNV DWP, and therefore directly references relevant sections of the DWP to avoid repetition. The objective of this SSCNVMP is to detail the best practicable option(s) (BPO) to avoid, remedy or mitigate the identified adverse effects from noise and vibration exceedances at 32 Normanby Road. This SSCNVMP has been prepared for the Link Alliance and forms part of the Construction Environmental Management Plan (CEMP) for the Project. It builds on the SSCNVMP previously prepared and implemented for the Normanby Rd Early Works.
C31.2 Engagement Normanby Rd Early Works (for information) Link Alliance representatives Sonya Leahy, Hilary Konigkramer, Maree Drury, Hilary Konigkramer, Aidan Kirkby-McLeod, Phil Young, Jack Wan and Craig Fitzgerald met with building representatives Ryan Kennedy and Daniel Scott (Tramco), Rachel Beer and Tom Morton (Morton Property), and representatives of tenants OfficeMax, AHS Security and Active Electrical on 17 October 2019. The matters discussed included: •
An overview of the Normanby Road early works.
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General programme and utilities trenching works in Normanby Road over a six-month period, and specifically within the site car park over a two-month period (approximately).
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Overview of the CNV DWP and this SSCNVMP, communications triggers and protocol.
The buildings are single level commercial retail/office spaces with associated industrial warehousing. The buildings are generally occupied during business hours, Monday to Saturday. Opportunity to utilise evening window until 10pm to minimise effects on operations (primarily traffic). The primary noise and vibration effects relate to the close proximity works at the site entrance in relation to the OfficeMax building. Figure B.2 in Appendix B of the Normanby Rd Early Works CNV DWP shows that the north façade is predicted to be exposed to noise levels between 75 – 85 dB LAeq during the closest concrete cutting activities, exceeding the 75 dB LAeq noise limit. In addition, trenching works close to the other tenants’ buildings would be undertaken over 2-3 days, resulting in short-term disruption. 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 OfficeMax building features an extensive sealed glazing façade. The estimated sound level difference across the façade with the windows and doors closed is 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 short term disturbance for the utilities trenching works immediately adjacent to the OfficeMax building. Physical receiver mitigation, such as temporary relocation of affected receivers, alternative ventilation and façade sound insulation Page 92
| Mt Eden Main Works CNV DWP – Appendix C SSCNVMPs
