C71 27 Brentwood Ave SSCNMP

C71 27 Brentwood Ave SSCNMP

C71.1 Introduction

This Site Specific Construction Noise Management Plan (SSCNMP) is for 27 Brentwood Ave. A SSCNMP is required because construction is predicted to exceed the standards in CRL designation conditions 31. This SSCNMP has been prepared in accordance with CRL designation condition 37 and is Appendix C71 of the Mt Eden Main 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 27 Brentwood Ave.

This SSCNMP has been prepared for the Link Alliance and forms part of the Construction Environmental Management Plan (CEMP) for the Mt Eden Station Main Works.

C71.2 Engagement

Mt Eden Main Works

Link Alliance representatives XXX met with building representative XXX on XXX date. The matters discussed included:

An overview of the project

General programme, demolition, blasting, rock breaking and utilities relocation activities

Overview of the CNV DWP and this SSCNMP, communications triggers and monitoring This single level villa backs onto the NAL rail corridor and worksite. CNV DWP Section 7 identifies summarise the potential scale of noise and/or vibration exceedances using the modelling outputs in insert hyperlink to the GIS maps here. The relevant stages are summarised below. Activity specific mitigation and management measures are included in Section 9 of the CNV DWP, and referenced in brackets, rather than repeated.

Retaining walls (refer piling in Section 9.8) The estimated sound level difference across the façade with the windows and doors closed is 20 –25 decibels. The predicted construction noise effects from Table 12.1 in Section 12.1 are predicted to result in XXX noise effects. 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 Mt Eden Station Main Works.

XXX 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).

Page 175 Mt Eden Main Works CNV DWP –Appendix C SSCNVMPs

C71.3 Review Process

If XXX or affected site representatives request consultation in the future, this SSCNMP will be updated in accordance with CRL designation conditions 37.5, with consideration given to the following:

The extent to which noise may exceed the designation standards

The timing and duration of any exceedance

The type of activity causing any exceedance

A summary of the communication and consultation with the receiver

The methods and measures to mitigate effects

A statement of why they reflect best practicable option Communications records are contained in the communication and consultation plan (CCP). This SSCNMP will be updated to summarise engagement and any agreed site-specific measures.

Page 176 Mt Eden Main Works CNV DWP –Appendix C SSCNVMPs