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American Yacht Club given OK to replace piles with fish-protection conditions
Summary
The commission approved pile replacement for the American Yacht Club at 115 Water Street conditioned on natural-heritage and fish-protection measures, including a requirement to use greenheart timber and, where required, bubble curtains and reporting for any fish mortality.
The Newburyport Conservation Commission voted to issue an order of conditions for pile replacement work at the American Yacht Club, subject to conditions recommended by natural-heritage reviewers and MassWildlife to limit impacts on sensitive species and fish. Tom Hughes, representing the club, told the commission the project will use greenheart timber for piles (a non‑treated, hard wood) and will comply with the detailed noise, seasonal and mitigation measures requested by natural-heritage staff.
Commissioners reviewed natural-heritage comments that called for steps to reduce underwater impulse noise and protect sturgeon during sensitive periods. The applicant said the work will avoid peak seasonal restrictions or will proceed only with a brief sturgeon-protection plan; Tom Hughes noted that juvenile sturgeon typically remain upstream and the risk at the mouth of the river is low if sound levels stay below damaging thresholds. "Typically vibratory wooden piles are in the 130–150 dB range," he said, and MassWildlife conditions require bubble curtains and monitoring where heavier hammering would exceed thresholds of concern.
The commission closed the public hearing and issued the order of conditions with standard and special conditions reflecting the natural-heritage guidance: pre-work notification; bubble-curtain or other sound attenuation where required; reporting any fish mortality; and use of greenheart timber to avoid treated pile contaminants. The motion to issue the order carried by recorded voice vote.
Next steps: Applicant to comply with the specified mitigation measures and submit any required sturgeon-protection plan before in‑water work, and to report any unexpected fish mortality.
