Barrier beaches of the Atlantic coast — John Shaqi
Barrier beaches of the Atlantic coastMerrill, Frederick J. H. (Frederick James Hamilton)
Science
Barrier beaches of the Atlantic coast
Merrill, Frederick J. H. (Frederick James Hamilton)
Barrier islands; Beaches -- New Jersey
At Long Branch the wear of the coast has been very great. According to
the United States Coast and Geodetic Survey, a strip of land varying
from three hundred to five hundred feet in width was removed between
Deal Beach and Monmouth during the twenty-seven years preceding 1868.
In the vicinity of Seabright the amount of wear was a little less
than two hundred feet during that period. Of late years the rate of
recession has been diminished in the neighborhood of Long Branch by
the means of artificial protection employed, but near Seabright the
shore line is said to have receded at least two hundred feet during the
past quarter of a century. At Cape May the wear of the shore has been
continuous except where the land is protected by jetties or a stone
sea-wall, the rate of encroachment varying from ten to thirty feet a
year.
Besides these alterations produced in the beaches by their westward
progress, the variations in the positions of the inlets and the
subsidence of the coast have caused many important changes. The history
of the Shrewsbury Inlets has already been given; it remains to mention
a few of those south of Point Pleasant.
Squan and Island Beaches, which now form a peninsula about twenty miles
long, terminating at Barnegat Inlet, were separated from 1750 to 1812
by Cranberry Inlet, which was nearly opposite the mouth of Tom’s River.
Since 1812 near the site of this old inlet there have been others of
brief duration, and one is said to have existed before 1755 opposite
the mouth of the Metedeconk River, which separated Squan Beach from the
mainland.
The old Barnegat Lighthouse is said to have stood nearly six hundred
yards north of the present south shore of the inlet, at a point now
occupied by the center of the channel. In 1855 the old tower was at
the water’s edge, so that the inlet has moved southward approximately
twenty yards per year.
Absecon Inlet, which separates Brigantine Beach from Absecon Beach, has
encroached upon the latter about four hundred yards in twenty years;
and the ocean front of that portion of Absecon Beach which is occupied
by Atlantic City extended in 1855 nearly half a mile farther east than
it did in 1885. About 1875 jetties were built which arrested the action
of the tidal currents, and, the wear of the shore being thus prevented,
a considerable area was restored.
Submerged tree-stumps and other evidences of a subsidence of the coast
may be found on the beaches and the salt meadows, but a detailed
enumeration of them would be beyond the scope of the present article.
In Cape May County the depression has not been less than twenty feet,
and has possibly been much greater. The evidence of some old buildings
on the shore of Delaware Bay suggests a subsidence of about four feet
during the last two centuries.
Public-domain text, read in full here on John Shaqi.
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