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News from USA

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VIDEO: Time-lapse captures four months of bridge construction in Yuba, Calif.
Screen shot from City of Yuba City video.
<p>The time-lapse video below, taken by the City of Yuba City in California, offers a look at four months of work on the 5th Street Bridge that spans the Feather River. </p>
Filed under: Construction News
The longest pedestrian suspension bridge in the US opens in Tennessee next month
CNN   01 May 2019   USA   Gatlinburg, Tennessee  
<p>(CNN) &mdash; Here's something to cross off your travel bucket list: A walk across the longest pedestrian suspension bridge in the United States.<br />The SkyBridge in Gatlinburg, Tennessee, stretches 680 feet across a valley in the Great Smoky Mountains ...
Filed under: Construction News
Rockslide closes Zion-Mt. Carmel Highway and tunnel at Zion National Park
3news   03 March 2019   USA   Utah  
Damage to the roadbed on the Mount Carmel Highway seen on Sunday, March 3, 2019. (Zion National Park photo)
<p>SPRINGDALE, UTAH (KSNV) &mdash; Heavy rainfall prompted a rockslide in Zion National Park on Saturday night. As a result, some popular canyoneering routes have been closed indefinitely.<br />The Zion- Mount Carmel Highway was closed after reports of an ...
Seattle tunnel subcontractor cited for underpaying workers $370,000
KOMONEWS.com   27 February 2019   USA   Seattle  
<p>SEATTLE - A company contracted to haul away dirt from the state Route 99 tunnel excavation has been cited for underpaying workers by more than $370,000.<br />While Bertha was drilling underground for the recently-opened SR-99 tunnel, Glacier Northwest was ...
Filed under: Construction News
Ring of Fire WARNING: When will earthquake strike California - when will BIG ONE hit?
Express   11 February 2019   USA   California  
<p>CALIFORNIA will eventually be struck by a huge earthquake that could have catastrophic effects. But when will the Big One hit?</p>
Polar vortex reportedly causes ‘frost quakes’ in Chicago: What is the geological phenomenon?
Fox News   01 February 2019   USA   Chicago  
<p>Freezing temperatures in Chicago — which at one point Thursday were said to be lower than those in Alaska and Antarctica — have reportedly caused a loud, ground-shaking phenomenon to occur: so-called “frost quakes.”<br>Chicago residents reported hearing ...
Earthquake faults crisscross LA. Is it safe to tunnel here?
Los Angeles Curbed   16 January 2019   USA   Los Angeles  
The underground portion of the soon-to-open Crenshaw/LAX Line is located in a liquefaction zone, where engineers must contend with damp, sandy soil that can destabilize in an earthquake. By Liz Kuball
<p>In December, tech billionaire Elon Musk and his tunneling startup, The Boring Company, unveiled a mile-long tunnel beneath Hawthorne&mdash;a prototype of an undergroundtransportation system called &ldquo;Loop.&rdquo;<br />Musk has repeatedly suggested that ...
An old bridge goes out with a bang
The Washington Post   15 January 2019   USA   New York  
Mike Segar/Reuters
<p>A big chunk of an old New York bridge went down in history Tuesday as explosives demolished the eastern part of the Tappan Zee Bridge.<br />The bridge has been replaced by the Governor Mario M. Cuomo Bridge, which carries Interstate 87 traffic over the ...
New Seattle tunnel designed to ride out catastrophic 9.0 quake, DOT says
KOMONEWS.com   08 January 2019   USA   Seattle  
<p>SEATTLE &ndash; The new Highway 99 tunnel opening in early February has been constructed to withstand a powerful once-in-2,500-years earthquake of roughly 9.0 magnitude off the Washington coast, state Department of Transportation officials said Monday.<br ...
Filed under: Construction News
America's first public earthquake-warning app unveiled in Los Angeles
The Guardian   04 January 2019   USA   California  
Photograph: Richard Vogel/AP
<p>Los Angeles has unveiled the US&rsquo;s first publicly available earthquake early-warning app, a development seismologists hope will move cities across the west coast to invest in wide-scale alert technology.<br /><br />ShakeAlertLA uses mobile app technology ...