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Aftermath of Hurricane Harvey

The aftermath of Hurricane HarveyThe Aftermath of Hurricane Harvey

The aftermath of Hurricane Harvey hasn’t been brought to mention as much as expected, in light of Category 5 Hurricane Irma, which is currently tearing its way through the Caribbean Islands at the moment and expected to produce tropical storm winds in Florida as soon as Friday, September 8th.

Hurricane Harvey was a category 4 hurricane with winds of 132 mph that devastated Texas last month costing the government an     $190 billion in damages, making it the costliest natural disaster in U.S. History. Comparatively, Hurricane Katrina from August of 2005 cost $125 billion and, in third place, Superstorm Sandy from October 2012 cost $65 billion, according to estimates from AccuWeather, as reported to usatoday.com. Harvey’s rainfall was totaled to 51.9 inches of rain, making it less than an inch short of breaking U.S. record set in 1950 in Hawaii.

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Hurricane Irma bound for Gulf and East Coast

Hurricane Irma headed our wayHurricane Irma bound for Gulf and East Coast

On the coat-tails of Hurricane Harvey rides Hurricane Irma, already the strongest hurricane ever recorded outside the Caribbean and the Gulf of Mexico, nearing historical precedent and a theoretical limit for how strong it can get.

Irma is a category 5 hurricane with maximum winds reaching approximately 185 mph, surpassing the 157 mph requirement categorizing a standard cat 5 hurricane. Formed in the far eastern Atlantic Ocean near the Cape Verde Islands, these Cape Verde Hurricanes are known to have a tendency of becoming some of the largest and most intense hurricanes, such as hurricanes Hugo (1989, cat 5, highest winds of 160 mph, 107 direct deaths), Floyd (1999, cat 4, highest winds of 155 mph, 57 direct and 20-30 indirect deaths), and Ivan (2004, cat 4, highest winds of 165 mph, 92 direct and 32 indirect deaths).

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Hurricane Harvey Devastates Texas

Hurricane Harvey Slams TexasHurricane Harvey Slams Texas

By now, we’ve all heard of the disaster of Hurricane Harvey and its affects on numerous southern states, specifically that of Texas. Record accumulation of rainfall is affecting south-east Texas, Louisiana, Arkansas, Mississippi while tropical storm force winds affecting primarily Texas and Louisiana has produced massive flooding throughout Texas.

Search and rescue by boat and air is underway, as there’s no end in sight of the floods and damage, as well as the residents seeking refuge from this catastrophic event. The National Weather Service forecast rainfall of 15 to 25 inches through Friday, with as much as 50 inches in a few areas stating that flooding is expected to continue for days. The NY TIMES reports a record 22 inches fell on the county in one day, while The Guardian states, “The sheer scale of Harvey – some parts of Texas may experience a year’s worth of rainfall in just over a week”.

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Boise Idaho

Flood protection - Boise IdaholFlood Protection for Boise Idaho

Damitdams was contacted by the city of Boise, Idaho to supply cofferdams for flood protection for one of the city buildings that is uses for monitoring traffic control in the city of Boise.

The building is roughly 100 yards from the Boise River, which is a tributary for of the snake river.  The river, which  is 102 miles long, is expected to reach record levels this year. Damitdams Inc. supplied 4 cofferdams at a size of 4 feet tall by 200 feet long.

The cofferdams will be connected to surround the building, creating a water tight barrier against the rising waters of the river. It is Expected that the levels of water flooding the building will reach 2 or 3 feet within the next couple of days . A representative from Damitdams went to Boise to help install the cofferdam and help prepare for the flood. Once the flooding is no longer a threat, a DamitDams representative will return to remove the cofferdam.

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Cofferdams and Caissons

Caissons and Cofferdams

A Caisson is a watertight structure used for retaining water in order to work on the foundations for bridges, piers, and other structures. Generally speaking, the water is pumped out to create a completely dry work environment. Some caissons can be open-air caissons, whereas others may use compressed air to keep the mud and water out. Installation involves pushing it into the mud, until it reaches clay or another solid foundation. Due to the pressures inside of caissons, there are many risks to the workers.

There are four main types of caissons:

Box

Box caissons are put into place and filled with concrete, and may make up the foundation for other structures. These caissons must be anchored to allow them to remain in the proper position until they have been filled with concrete.

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