Neptune will closely monitor noise levels at both sites to ensure construction activity does not result in a noticeable increase to average existing noise levels.
The demolition of the shiploader and related berth, as well as the subsequent pile driving activities at berth two will be the primary sources of noise during construction and may result in noise extending beyond the terminal perimeter. It is anticipated that these activities will take six to eight months to complete.
Neptune will limit impact pile driving to the standard port authority construction days and hours only and will use a variety of methods to further minimize noise, including: turning off diesel engines and using electric power whenever possible, combining the use of strobe lights with lower volume back-up alarms on construction vehicles when appropriate, and avoiding the use of high-noise power tools during structural steel construction.
Neptune will also follow noise reduction best practices for the Lynn Creek estuary marine activities.
Neptune has two offsite noise monitoring stations that will be active throughout construction and also has a comprehensive process in place to investigate and address noise concerns, including identifying the noise source – whether from construction activities, existing operations or something else – and putting appropriate mitigations in place.