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Harbor committee presses for review of mooring concession, capacity tracking and alternative gear
Summary
The Harbor Plan Update Committee discussed oversight of the town's mooring concession, rising demand-based pricing by the mooring operator, and recommendations to track mooring and vessel use while pursuing less-damaging mooring gear and stronger enforcement of pollution-prevention measures.
The Harbor Plan Update Committee on April 28 urged a formal review of the town's mooring concession and sought better data and gear standards to manage carrying capacity and protect eelgrass.
Committee members said the current contract arrangements with Nantucket Moorings should be examined publicly so the town has clarity on how moorings are managed and how fees are set. Members raised concerns that the operator shifted from seasonal to nightly, demand-based pricing and that the terms of the concession may not be transparent.
The committee emphasized two related gaps: first, a lack of regular, reliable counts of how many vessels use moorings and slips each year; and second, the environmental effects of the dominant mooring hardware in use. Members recommended building an annual accounting of harbor use, including season-long mooring occupancy and transient use, to inform carrying-capacity planning.
Committee members also discussed mooring gear. They noted most moorings in town are "mushroom" anchors that are pulled each season and that helix or permanent concrete anchors were used historically in other places. Participants said helixes were attempted years ago and were later discontinued, and that permanent concrete anchors (used on Martha's Vineyard and elsewhere) reduce seasonal disturbance but raise other maintenance and safety tradeoffs.
The group recommended the town pursue piloting or transitioning to alternative mooring gear in areas where that would reduce seabed scour. The committee asked staff and the harbor master to evaluate recent field experiments with pyramid anchors and other gear, and to bring back safety and maintenance findings.
On pollution prevention, committee members recommended stronger, enforceable measures for use of dye tabs or similar fuel-dispersion markers. Several members said distribution alone has been inconsistent and that any regulatory requirement would need staffing to ensure dye tabs are placed aboard vessels rather than relying on boaters to self-apply them.
The committee did not adopt any formal policy at the meeting, but directed staff to seek written copies of the mooring concession agreement, to ask the harbor master (Sheila) to explain existing oversight practices, and to develop draft language for an annual harbor-use accounting and an alternative-mooring pilot for review at a future meeting.
Background and next steps: committee members requested that harbor staff and town planning staff confirm whether concession terms already include town review provisions and whether Army Corps of Engineers limits apply to mooring counts in specific zones. The committee plans to revisit drafted recommendations once staff and the harbor master provide documentation and feasibility assessments.
