Dredging

Tisbury Harbor

Tisbury Waterways was initially organized in 1988 to address the fact that the back channel had silted in, cutting off water circulation in the inner harbor. This led to putrefaction in the marine life in the inner harbor and a noxious odor that permeated the waterfront area.

Eventually, the town dredged the back channel, restoring water circulation.

Recently, the back channel has started to silt in, and circulation is being cut off. TWI is advocating for dredging, and the town is moving ahead with plans.

Lake Tashmoo

TWI continues to advocate for regular dredging of the channel , which silts in remarkably quickly.

Header photo courtesy of the Martha’s Vineyard Times. Satellite photos courtesy of Google Earth.

Last updated: November 2026