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September 3, 2024

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The Last Stand of Holland Island

100 years ago, the Chesapeake Bay was sprinkled with inhabited islands that supported thriving communities of fishermen, crabbers, and oyster-men. In fact, these islands were peopled for hundreds of years before the arrival of Europeans — recent improvements in archeological techniques have revealed that crabbing and oyster-gathering sustained Native American communities on these same islands for many centuries.

Today, very few inhabited islands still cling to a precarious foothold in the Chesapeake Bay. Most of the islands that once hosted human communities have been abandoned because they have sunk too low to offer a sustainable foundation for the towns. One such island — perhaps the bay’s best-known illustration of sea level increase — is Holland Island.

At the turn of the last century, Holland Island was home to a relatively large community of more than 300 people. It had shops, schools, and other services that communities require. But over the ensuing decades the island began to sink relentlessly, along with all other islands in the sprawling bay.

The last house on Holland Island in the Chesapeake Bay as it stood in October 2009. This house fell into the bay in October 2010.

The Chesapeake Bay is a particularly stark example of the hazards of sea level rise, as here the ocean is encroaching at a faster rate than at other bodies of water along the US East Coast. This is because the land mass that surrounds the bay is sinking for other reasons than simply sea level rise- it is also influenced by primordial glacial activity from the last ice age. This land mass had been pushed up by glacial forces which are no longer in play, and now the land is sinking back down at just the moment when sea levels are rising.

The result of this double whammy is a spectacular, speeded-up display of what is happening in all coastal communities around the world. Islands in the Chesapeake Bay have been completely claimed by the sea in many cases, and dozens of others have been rendered uninhabitable. The people who lived on these islands for generations have been forced out by the inexorable march of the sea.

Holland Island has often been in the news because of one extremely curious situation. Until recently, the island presented a very odd spectacle: one last 2-story Victorian house rising from the sea … alone, surrounded by nothing but bay-water. The house remained standing largely due to the Herculean efforts of one man, who had made it his mission to save the house.

Stephen White, a retired minister, bought the house and most of the island in 1995, for $70,000. He would lose his investment when the island sank below the water only 15 years later. White was motivated to save the island when he happened to visit the town’s cemetery, which held the remains of a young island girl. The stone at her grave read simply: “Forget me not”. White was so moved by these words that he tried everything in his power to save the site.

White spent countless hours, expended heroic physical labor, and lost a mountain of cash trying to save this last house on Holland Island. He erected every kind of flood barrier he could think of: earth berms, sandbags, and even modern, high-tech flood panels. White incessantly implored the government for help with the flood barriers, but to no avail. He even tried to have the house moved to the mainland, but that option proved untenable.

For a time, the house remained standing, the last bastion of what was once a busy town with homes, boat docks, and even a traveling baseball team. But the sea was unstoppable, and in the year 2010 the house collapsed, and with it the quixotic quest of Stephen White.

Source:: FloodBarrierUSA

South Carolina Floods Disable the State

During the first week of October, a freakish storm system battered the southeastern U.S. states, particularly South Carolina. Hurricane Joaquin, which did not directly hit the region, nevertheless contributed massive amounts of precipitation to other smaller storms and then collided with a cold front that had stalled in the area. In what is being called a 1000-year event, record-smashing amounts of rain battered an entire state to a standstill. In fact, some meteorologists are predicting that this storm system, when all precipitation meters are recorded, will be revealed as the most prolific storm in the recorded history of the U.S. … ever! When the rain finally let up after a five-day torrent, 25 people had lost their lives.

A levee breach at the Columbia Riverfront Canal, Columbia, S.C., during a statewide flood Oct. 5, 2015. The South Carolina National Guard has been activated to support state and county emergency management agencies and local first responders as historic flooding impacts counties statewide. Currently, more than 1,100 South Carolina National Guard members have been activated in response to the floods. (U.S. Air National Guard photo by Tech. Sgt. Jorge Intriago/Released)

Several weeks after the storm, the state of South Carolina has yet to fully recover. It is thought that it will take months to fully assess the damage to area dams and bridges, as multiple rivers burst their banks during the storm, causing devastating damage downstream. At least 18 dams were breached during the flooding, and many of these collapsed completely. Some bridges and dams that remain standing may have hidden damage or flaws that could become very dangerous during the next storm if not discovered before then. Engineers are working hard to inspect all the dams and bridges that survived the storm, even as plans to rebuild collapsed flood barriers are being prepared. In addition to the destroyed dams and bridges, many roads, including major thoroughfares, remained unsafe and impassable several weeks after the storm. A 75-mile section of I-95, the main interstate passing through the state, was closed during and after the storm, causing extreme havoc to interstate transport and commuters.

Another serious after-effect of the storm was contamination to the water supply. People were urged to thoroughly boil any water used for drinking or cooking, and to discard any ice that had been made from water after the storm. The flooding in South Carolina was so extreme, and so widespread, that the contaminated floodwaters had mixed with reservoir water, cisterns, and other water collection systems, rendering the public water supply unsafe. FEMA disaster relief funding will be available for flood survivors who sustained losses in this storm. Funds may be used to pay for temporary rentals or home repairs. For example, many homes that withstood the floods are now uninhabitable due to mold and mildew

The storm of October 2015, although not a named hurricane, will live a long time in the memories of all those who endured that five days of anxiety, fear, and an almost total disruption of daily life. In some parts of South Carolina, almost two feet of rain was gauged during the five days of unrelenting downpour, smashing records for daily, weekly, and even monthly rainfall levels — all from one epic storm. Many towns were entirely submerged, and the devastation was so widespread that almost no part of the state emerged unscathed. Although the storm is being called a ‘1000-year flood’, it is very likely that the next 1000-year flood will arrive considerably sooner than 1000 years from now.

Source:: FloodBarrierUSA

Flash Floods in Utah Claim 20 Lives

Flash floods are among the most deadly of all the flooding scenarios, because victims simply do not have enough time to get out of harm’s way. Every year, flash floods occur in the arid U.S. Southwest, and unfortunately, lives are often lost as a result. 2015 was a particularly bad year for flash flooding in the state of Utah. Freak twin storm events in September produced 2″ of rain in a very short period of time, which quickly filled creeks, canyons, and gullies. The storm has been described as a 100-year event, and the resulting loss of life was devastating. When it was over, the storm had earned a place in the record books as the deadliest storm in Utah’s history, with at least 20 lives lost.

USGS scientist Brad Slaugh taking measurements following a flash flood event in Hildale, Utah. Photo taken 9/15/2015 by Jake Benson/USGS

The storm began as Hurricane Linda, but it was quickly downgraded from hurricane status as it moved into the U.S. Southwest. As it entered the arid states of Utah and Arizona, the storm dumped most of the precipitation that it had picked up in the tropics. Because the ground was rock-hard from a persistent drought, the water immediately ran off and quickly produced life-threatening conditions. At this point, the National Weather Service released its most strongly worded warning: “Move to higher ground now. Act quickly to save your life!”

Unfortunately, a number of people gathered near Short Creek to watch the rapidly rising water level. Sixteen of these bystanders were carried off by the rushing water as it suddenly rose and swept away two vehicles. This disaster resulted in the deaths of 13 people, but three children were miraculously rescued by emergency personnel. Hundreds of rescue workers and volunteers braved hazardous conditions to search for one missing child, but the river was so dangerous that their work was greatly impeded.

Another crisis occurred at Zion National Park when an inordinate amount of precipitation caused flash flooding in the Keyhole Canyon area. This popular hiking area is characterized by slot canyons- these are very narrow canyons with steep sides that allow no chance of escape when floods strike. These canyons are close to the Virgin River, and when this river rises quickly, the slot canyons can become death traps. During the sudden storms on this day, the Virgin River rose from its normal volume levels of 55 ft3 per second to 2,630 ft3 per second… in under 15 minutes.

Rangers quickly moved to close all the canyon hiking areas, but one group of seven people had decided to go ahead with the hike in spite of unfavorable weather forecasts. Trapped in the slot canyons when they filled with ferocious torrents of water, all seven hikers perished. Heroic rescue workers faced extremely dangerous conditions in an effort to locate the hikers, but to no avail.

The combined death toll of these storms was 20 individuals; 20 lives were cut short, and many other lives were scarred by sorrow and loss as a result. The lesson learned by survivors is stark: flash floods are so dangerous and so fast-moving, that the warning of the National Weather Service must be heeded immediately: move to higher ground, and act FAST to save your life!

Source:: FloodBarrierUSA

Flood Protection is the Best Defense Against Flood Damage

Across North and South Carolina, communities are struggling after historic 1000-year flooding devastated parts of the region. It will be months, and possibly years, before many businesses impacted by the floods will be back in business. Some may never recover.

The National Flood Insurance Program reports that at least 25 percent of businesses that close after a flood don’t reopen.

Flood protection is the best defense against flood damage, and can provide businesses with some peace of mind in flood prone areas.

Hurricane Joaquin in the Atlantic Ocean north of Bermuda at 1315Z on October 5, 2015. GOES East satellite image from NOAA EVL.

In North and South Carolina, and in other places recently hit hard by flooding like Houston and the Jersey Shore, a number of forward-thinking businesses have taken steps to protect their assets with flood protection from Flood Panel LLC. (Click here for a list of Flood Panel projects.)

“We are heartbroken by the recent flood events in North and South Carolina, and our thoughts are with our many customers and business partners who live there,” said Tom Osborne, owner and president, Flood Panel. “The historic flooding demonstrates the unpredictability of storms, the catastrophic effect of flooding on communities, and the importance of being prepared for whatever Mother Nature brings.”

In regions at risk to major flooding, businesses have few options: move the building outside of the flood zone, elevate the structure above base flood elevation, build earthen barriers like berms, dikes and walls, or floodproof. Moving or elevating can add significant business hardship. According to the Army Corps of Engineers, floodproofing is the best choice, especially for urban structures.

Dry floodproofing requires that all large openings have flood barriers installed, areas below water level must resist infiltration, all small openings must be sealed, buoyancy effects should be considered and a method for pumping out leakage must be provided. Flood Panel’s expert consultancy and comprehensive line of flood panels, flood doors and custom flood solutions address any flood scenario.

The best flood defense is a good offense. A proactive approach to flood protection may spare businesses from catastrophic loss due to flooding caused by the next hurricane, historic rainfall or other extreme weather event.

For more information, visit www.floodpanel.com.

Source:: FloodBarrierUSA

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Mega Flood Log System Far Exceeds Industry Testing Standard

February 13, 2025

Mount Royal, N.J—Engineers, architects and contractors can rest assured that Floodproofing.com has a selection of products that meet and exceed the forthcoming American Society of Civil Engineers/Structural Engineering Institute (ASCE/SEI) 24-24 standards for flood-resistant design and construction. Now the international leader in flood mitigation products has another engineered and tested product that exceeds these new standards for buildings in FEMA flood zones. Floodproofing.com recently conducted third-party testing of its Flood Panel Mega Flood Log System following hydrostatic and impact performance standards of the American National Standard for Flood Mitigation Equipment known as ANSI/FM 2510. According to the new ASCE/SEI 24-24 standards, all flood barriers must be tested and certified to meet the applicable requirements of ANSI/FM 2510. Manufactured at the company’s Jupiter, Florida-based Flood Panel facility, the Mega Flood Log System underwent seepage and impact testing in two configurations 12 feet wide by 5 feet high, and 5 feet wide by 8 feet high. The system was tested in a water tank filled to 10 percent capacity for one hour and 100 percent capacity for 20 hours. The ANSI/FM 2510 test limit for seepage is 0.08 gallons per hour per linear foot of seal – about 10.2 ounces. The Mega Flood Log System tested at 0.01 gallons per hour – about 1.3 ounces, far exceeding the standard. Even after impact testing with a 110 lb. wooden log smashing into the assembled system, Mega Flood Logs showed no additional seepage when retested. “With the more stringent requirements of ASCE/SEI 24-24 about to go into effect, the design and build industry needs assurance that the flood mitigation products and solutions they incorporate are professionally engineered and thoroughly tested,” said Floodproofing.com President and CEO Tom Little, CFM. “We follow a very high standard of excellence for our products, and we are proud of the testing results of the Mega Flood Log System.” Designed to be highly resistant to heavy impact forces and withstand high-velocity water loads typical of flash floods and hurricanes, the Mega Flood Log System is an in-demand flood mitigation solution with hundreds of successful installations and deployments at commercial properties and critical infrastructure facilities. The innovative design makes it easy to install and quick to deploy. The Mega Flood Log System offers the following benefits: Easy Assembly: Offers the lowest reaction times of flood control systems on the market and can be assembled by just one or two people. C-Shaped Support Posts: The system comprises a series of “C” shaped support posts and hollow aluminum beams that anchor the flood barrier system. These beams stack on each other with a tongue and groove connection. The bottom beam of each span is fitted with a large rubber seal that makes contact with the surface achieving a watertight seal. The support posts that attach to the building structure can be installed on a removable basis, minimizing the aesthetic impact on the building. Easy Deployment and Storage: Twelve-inch-high logs cut the deployment time and allow for more efficient, easy storage. Modular System: A modular, stackable system makes it easy to install in specific flood-prone areas, including window openings, across doors and storefronts, as well as an entire perimeter defense against flooding. Because of its modular design, it can run the length of any sized structure. Custom Designs Available: Our team designs custom solutions to fit unique building specifications. About Floodproofing.com Floodproofing.com is the go-to resource for all things related to flood risk and resiliency. We manufacture and supply the largest selection of innovative solutions under one roof and provide complimentary floodproofing design and turnkey assessments that present the best options to mitigate flood damage, improve recovery time, and lower liability risk. In addition, the Floodproofing.com team has spent many years studying the science of flood mitigation and is certified to instruct and provide learning credits to all professionals affiliated with the design-build industry. Also, our in-house insurance agency, Risk Reduction Plus Group, provides NFIP and private flood insurance options with the lowest possible premiums for at-risk communities. For more information, visit Floodproofing.com.