|
|
|
|
|
| Home / World Trade Center Special Coverage
/ WTC Cleanup
|
October 17, 2002
Early Days at the Disaster
Structural engineer Patrick J. McNierney spent most of the week of September 11 at the site of the former World Trade Center as a volunteer. Here is his insight to some of the problems the team faced
Architecture Week
September 12, 2002
September 11 steel recycled
Scrap metal salvaged from the debris of the World Trade Center in New York is being recycled to produce steel for use in building construction by Indian factories in the north Indian state of Punjab.
BBC
September 11, 2002
One Year Later: Inside, looking out
Naples retiree 'grew up' as an engineer in the skeleton of the World Trade Center towers.
Naples Daily News
September 10, 2002
WTC cleanup with N.C. ties
One of the leading men in charge of WTC cleanup project is David Griffin, vice president of his father's demolition company in Greensboro.
The Business Journal
September 4, 2002
A Toxic Legacy Lingers as Cleanup Efforts Fall Short
Under pressure from activists, local politicians and even its own scientists, the Environmental Protection Agency has agreed to clean every residence in Lower Manhattan.
LA Times
March 15, 2002
Near Ground Zero, Street Surgery Starts With a Shovel
The plan now is to dig up a stretch of street and then repair everything under that section at the same time, a mammoth task of coordination that is intended to minimize disruption for residents.
New York Times
March 12, 2002
After Sections of Basement Collapse, Work at a Part of the Trade Center Site Is Halted
The collapse of two sections of the basement of the World Trade Center complex forced a temporary stop to the demolition in that area. Engineers and contractors are working out an alternative plan that would ensure the safety of workers and permit the work to proceed.
New York Times
February 23, 2002
Eyes Focus on Trade Center's 'Bathtub' as Debris Is Cleared
Keeping the bathtub sound has been a priority for the engineers, who worried after the Sept. 11 collapse that the wall was being held up only by debris in some areas, and thus could be breached if the debris was excavated without the right precautions.
New York Times
February 6, 2002
Engineers at Ground Zero speak about experience
Key figures involved in the cleanup at Ground Zero spoke in a panel discussion “From Ground Zero,” at the National Building Museum in Washington, D.C., January 28.
Architectural Record
December 12, 2001
Going Behind the Barricades
As the world watches from behind secured perimeters, construction forces are working to clean up at Ground Zero in New York City and Washington, D.C. Engineers, contractors and building trades are doing jobs that are risky and draining, but they are gratified to be part of the team.
ENR
December 6, 2001
Pricetag of WTC Cleanup Dips Below $3 Billion
Cost estimates for the ongoing clean-up operation at the World Trade Center site fell below $3 billion, after topping $7 billion, now that fears of possible flooding from the Hudson River and other engineering problems appear unfounded, a city official said on Tuesday.
Smart Money
December 6, 2001
High-Tech Methods Are Used to Assess Damage After Terrorist Attacks
Equipped with lasers or customized Palm Pilots, teams of university researchers have been assessing the damage done to the buildings surrounding the World Trade Center during the September 11 terrorist attacks.
Chronicle of Higher Education
December 5, 2001
Ground-Penetrating Radar to Aid in Cleanup
In its efforts to clear ground zero with as little disruption as possible to the surrounding area in Lower Manhattan, the city is exploring the use of ground-penetrating radar to map the tangle of underground utilities without digging them up first, a spokesman for the Department of Design and Construction said yesterday.
New York Times
December 4, 2001
Draining a Hazardous Coolant Takes Caution, and a Long Hose
Chemical coolants are frequently removed from large air-conditioning units without any incident. The concern here, officials said, is that the tanks or air-conditioning machinery might have been damaged in the towers' collapse.
New York Times
December 4, 2001
Wounded Buildings Offer Survival Lessons
Investigations of how and why those buildings survived could lead to improvements in the way skyscrapers and other structures are built. Experts said early indications that older buildings performed better than newer ones were still difficult to confirm, partly because the buildings had been under different stresses during the attacks.
New York Times
December 4, 2001
Eyes Focus on Trade Center's 'Bathtub' as Debris Is Cleared
By next summer, the engineers say, that wall, known as the bathtub, now scarred and crosshatched with steel reinforcing rods, may be all that is left of the World Trade Center.
New York Times
December 3, 2001
Laser-Sharp Insights: Innovative 3-D Mapping
University of Florida (UF) researchers are using cutting-edge laser technology to create three-dimensional maps of buildings damaged in the terrorist attacks on September 11, 2001.
NSF
November 16, 2001
A Netherworld of Compressed Debris, Gloom
The trade center's basement was once a six-level shopping center, parking ramp and underground train terminal spreading over more than 2 million square feet. Now it has become a place where the horror of the aboveground devastation is amplified by the gloom of the debris-strewn, claustrophobic space--a hazy darkness pierced only by flashlights and an occasional crater that lets dim sunlight filter through from above.
Chicago Trubune
November 10, 2001
Engineers Say Sept. 11 Attacks Posed Challenges
With concern about the possible collapse of subways, vaults and tunnels, some not even mapped, under the site keeping heavy equipment at bay, the early days of the operation were characterized by old-time excavation methods and basic engineering.
News Gazette
November 8, 2001
Safety Becomes Prime Concern at Ground Zero
Ground zero at the World Trade Center is a landscape like no other. Those same things also make it a work site like no other in America, and in that it is a dangerous workplace, first and foremost.
New York Times
Next 20
|
|
|
|
|
|
