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Nantucket Beach Erosion | A Disappearing Island

Nantucket Beach Erosion | A Disappearing Island
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“It’s the single most time-consuming part of my life,” he says. I’m visiting Weymar on a stunning afternoon, when his place is abuzz with the sounds of saws and scrapers as carpenters repair a front porch. His home, which he and his wife Caroline bought in 1987, is a gem, a five-bedroom Colonial Revival with weathered gray cedar shingles, crisp white trim, and a widow’s walk adorning the roof. “Tallest house in the neighborhood,” Weymar says, lightheartedly.

But today, as on most days, his eyes are directed to what’s below. Out back, where perhaps 25 yards separates his house from the edge of the bluff, a narrow row of beach roses lines the back edge of the lawn — a final show of vegetation before the land drops sharply into a steep sandpit wall. In the distance a motorboat zips along the water; fishing boats dot the horizon.

“This bank right here was fully vegetated with about 200 feet of dunes before you got to the beach,” Weymar explains. “We had a walkway that went down there, and the yard went out another 10 feet.”

Like many homes along the bluff, Weymar’s was the creation of forward-thinking developers of the late 1800s who realized that ‘Sconset, a sleepy fishing community turning summer destination, needed more prominent residences than village shanties. Their homes featured expansive lawns separating each house from the bluff, with a public right of way. That’s why, even today, it’s perfectly normal to see stran­gers traipsing through the backyards out here as they follow mile-long Bluff Walk, which itself is eroding.

Weymar still enjoys walking the trail, in part because it’s like going back in time. To the south the beach is wider, the dunes still present, and the cliff’s gradual slope is covered with roses. Farther north, it’s a different story. With few dunes or shoals to stymie its energy, the ocean batters the bluff’s toe, strips away sand, and destabilizes the cliff. Big storms can bring disaster. In 2005, winter storms carved off 25 feet of bluff in less than a month and forced one homeowner to slice off the piece of his house that was hanging over the cliff. Over the past several years, a dozen homes on this road have been moved back or relocated.

Weymar’s house been lucky: It still sits on its original 1916 foundation. But nobody has to remind him of what he’s up against. Along with the scientists he’s hired, he’s made a careful study of the water and the land, familiarized himself with practically every erosion-fighting method available, and founded the Siasconset Beach Preservation Fund (SBPF), a nonprofit with more than 400 contributors, dedicated to addressing the community’s erosion issues.

Today ‘Sconset Beach is a reminder of lost battles. The mechanically doomed pumps and valve stems from a huge dewatering system that was supposed to lower the beach’s water table, and remnants of temporary terracing projects whose bags and posts storms have tossed about like little toys — they’re all in plain sight, $15 million in research and labor to fight the inevitable.

Even here on Nantucket that’s a lot of money. “It’s just stubbornness and arro­gance on their part, because they have money, so they think they can outsmart Mother Nature,” says one ‘Sconset native. “That’s the risk you take. I wouldn’t have bought property on an eroding bluff, but that’s just common sense to me.”

Still, the money comes. Since 2005, SBPF’s newest target has been a $20 million beach-nourishment project that would dredge the equivalent of some 200,000 dumptruck loads of ocean sand and pump it onshore to build out ‘Sconset Beach — ultimately, its proponents contend, protecting the bluff and the houses. The idea behind it is this: By building back the land, in this case extending a roughly three-mile section of sand 150 feet out into the water, you hold back the ocean. Essentially, two beaches are created: a sacrificial one to feed the sea, and a permanent base behind it.

In effect, nourishment tries to tap into the complex system of give-and-take that defines any beach. Simply put, the ocean moves sand from one location to another — the direction varies according to the currents — through a process called littoral drift. Waves wash up onshore, deposit material, and then fill up again with material as they recede. But the harder the water rolls in, the more material it extracts and the less it leaves behind. And that’s what’s happening in ‘Sconset, where a high traffic transport of sand — the equivalent of about 20,000 dumptruck loads of the stuff — moves through the water each year.

Please Note: This information was accurate at the time of publication. When planning a trip, please confirm details by directly contacting any company or establishment you intend to visit.

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2 Responses to Nantucket Beach Erosion | A Disappearing Island

  1. chet holmes September 13, 2008 at 12:19 pm #

    hello, read the article on the erosion problem in nantucket,im afraid there fighting a losing battle,and that mother nature will prevail, i for one would like to see a moratorium on any more building on the coast? other than state and federal parks so everyone can enjoy the coast,i remember when they ran the poor portugese fisherman out of new bedford and put in dockominiams, for the select few that could afford them,wazzup with that? gloucester and cape ann is starting the same thing, owell tyme will tell i imagine cheers chet ps i love your magazine

  2. Steve Merrill October 22, 2008 at 7:32 pm #

    I will never understand the building of homes and the thought process of government leaders/elected officials that allow these actions to take place.the New England way of life is disappearing fast.As a recreational fisherman I can empathise with Mr.Eldridge and others who appreciate the wondrous beauty and the bounties that nature has to offer.Ecological destruction,let’s be honest, that’s really what it is, on the coastlines and inland in forests change this planet forever.I am amazed at the silence most times of environmental groups,some of which I am a member and/or contributor to.I wonder at times when I see mansions or developments built what contributions were made by these folks to environmental groups for there “silence”.Pristine coasts and forests where access was available to all,shut out forever for the few to enjoy.People have a right to develop their land but that right stops with me when it becomes a detriment to others.But what do I know.I am not a bleeding heart liberal or right wing.I am just a working stiff who is amazed at the wonder and power of mother nature everytime I go to the sea and forests to fish or take a walk.i pray the stripers are there 100 yrs from now in ‘sconset for all to fish and enjoy and the cobble not destroyed for the sake of a house.

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