Below excerpts are from a December 5th article co-published by ProPublica and the Honolulu Star-Advertiser. The full article is available here.
For decades, homeowners in Punalu‘u watched from large picture windows as locals sunned on the beach and dove for octopus amid the coral reefs of northeast Oahu.
But year after year, the ocean inched closer and closer to their wooden beach houses, and by 2006, it was threatening to claw them away.
Two homeowners asked the state for permission to erect mounds of sandbags along the beach for protection.
Hawaii’s Department of Land and Natural Resources agreed, with one key condition: The emergency measures would be temporary. Such shoreline structures can hasten beach erosion, and state officials were trying to ensure that didn’t happen. The homeowners had a few years to come up with long-term plans for their homes and remove the sandbags.
But as the deadlines approached, state officials granted them an extension. Then, another. The decisions set off a cascade of armoring along the coastline, as neighboring homeowners put up their own sandbags to guard against seasonal waves and rising seas.
Today, nearly 15 years later, the sandbags remain and the beach is largely gone. If members of the public want to reach the ocean, they must clamber over a makeshift seawall, covered by black and tan fabric and held together with rope, and past “No Trespassing” and “Danger” signs.
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Below excerpts are from an October 27th article published on Phys.org by the University of Plymouth. The full article is available here.
“There is potential for beaches to migrate landwards as sea level rises and shorelines retreat.
“The key notion behind that is that if beaches have space to move into under the influence of rising sea levels—referred to as accommodation space—they will retain their overall shape and form but in a more landward position.
“The new research says that beaches backed by hard coastal cliffs and engineering structures, such as seawalls, are indeed likely to disappear in the future due to sea-level rise as these beaches are unable to migrate landward…
“However, beaches backed by low-lying coastal plains, shallow lagoons, salt marshes and dunes will migrate landward as a result of rising sea level. In these cases, the shoreline will retreat, but the beaches are still likely to remain, albeit a little raised in elevation and located landward, and will certainly not go ‘extinct’.”
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Below excerpts are from a March 8th article in Newsday. The full article is available here.
Another beautiful Long Island beach is eroding. This one is in the village of Quogue.
It’s no surprise.
The beach is eroding because of the sandbags placed on it. That’s what always happens with sandbags. They were put on the beach in Quogue to protect the pricey oceanfront homes behind them. Continue reading Rethink Plans to Protect Beaches