Protection Measures Selection Tool

Project applicants shall develop a plan for pile-driving activities to minimize impacts to fish and will allow sufficient time in the planning and construction schedule for coordination with regulatory agencies. Measures will be implemented to minimize underwater sound pressure to levels below thresholds for peak pressure and accumulated sound exposure levels at a distance of ten meters. Threshold levels established by NMFS are:
peak pressure = 2 06 dB peak
accumulated sound exposure levels= 183 dB SEL