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Manolo Blahnik Wedding Shoes Red

Manolo Blahnik Wedding Shoes Red

Manolo Blahnik Wedding Shoes Red

´╗┐Weighty work ahead for construction crews at new Lake Mead intake site

Manolo Blahnik Wedding Shoes Red

Manolo Blahnik Wedding Shoes Red

the level in Lake Mead. The higher the lake is, the faster Gold Christian Louboutin Shoes

Manolo Blahnik Wedding Shoes Red

Weighty work ahead for construction crews at new Lake Mead intake siteA worker stands by a drilling machine in a tunnel 450 feet below the surface of Lake Mead. Workers are putting the finishing touches on the tunnel, which is flat on the bottom and rounded at the top.Weighty work ahead for construction crews at new Lake Mead intake siteA basket is used to lower workers 450 feet to the tunnel system at Lake Mead. Work on the $817 million intake started in late 2009.Workers have finished drilling and blasting a connector tunnel 400 feet underground that will link the valley's two existing straws to the third one now under construction.It took three years and more than $52 million to carve the half mile long connector through fractured rock and seeping water from the nearby lake. "It's a critical part of the project, and it's a critical project for the community."The Las Vegas Valley draws 90 percent of its drinking water from Lake Mead. The $817 million third intake will keep that water flowing even if the lake shrinks low enough to shut down one of the community's existing intake pipes.The connector tunnel will tie it all together, but building it hasn't been easy.Conditions at the site deep beneath the shore of Lake Mead are dark and muggy with a 100 percent chance of rain. Water drips down from the ceiling and sprays from a few holes in the walls.Through the wettest stretch of tunnel, an ankle deep stream flows down Christian Louboutin Ankle Boots

Manolo Blahnik Wedding Shoes Red

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toward whirring pumps that keep the place from filling completely.Joseph Savage is project manager for Renda Pacific, the Texas based general contractor for the connector tunnel.He said they expected to find water down there, but not this much. The "high groundwater flow" and unstable rock delayed completion of the tunnel by 18 months and increased costs by $5 million and counting.That's the thing with underground construction, Savage said. "You just never know what you're going to get."The connector tunnel was excavated the old fashioned way: roughly 10 feet at a time, with hard rock drills and explosives and heavy equipment mucking out debris.Renda Pacific started the work in late 2009.All told, Renda Pacific hauled almost 73,000 cubic yards of rock out of the ground, enough to form a pyramid slightly larger than the Luxor.Workers are cleaning up and putting the finishing touches on the rough hewn tunnel, which is flat on the bottom and rounded at the top, like a horseshoe 14 feet wide and 16 feet high.Wet conditions at the site are "especially harsh on people and equipment," Savage said. "You're just working in the rain constantly. These guys earn their money, no doubt about it."Right now, the water is pouring in at about 1,500 gallons per minute, fast enough to fill a standard 50 gallon bathtub in two seconds.The volume of the water rises and falls with Cheap Christian Louboutin High Tops

the tunnel floods.The water seeping in is loaded with enough calcium carbonate to form small stalactites here Manolo Blahnik Wedding Shoes Red and there on the walls.Pumps at the bottom of the tunnel's 450 foot vertical access shaft keep the flow at bay, sending the unwanted water to the surface to be cleaned up and released into the lake.

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