The World Trade Center and Pentagon Tragedy
(This page is updated as new
information is found and time permits.)
Last updated 07/19/04 8:07 am
Building Performance Study Released
Building Performance Report is now available
News Record Cover Story: Skyscrapers' Supporters Infuriated by Fire Fearmongers
[Observances marking 9/11 Anniversary]
Report] [Six Plans for Ground Zero]
[Building Code Revisions] [Analysis
of Collapse] [Building
condition around WTC site] [WTC
Below grade conditions] [WTC site clean-up][Occupancy
of the WTC] [Structural Investigation
Teams] [Pentagon site] [In
Memoriam - Penn State] [First Hand
Reports - NYC] [First Hand
Reports - Pentagon] [Reports from others]
that help in analysis of collapse] [WTC
facts: Design and Construction] [Insurance
Industry response][PSU AE Faculty
comments] [Patriotic Images] [Rumors
debunked] [In Memoriam] [Tributes]
the Void: What happens to the site][Rebuilding
Wall Street] [Miscellaneous] [General
This site has grown significantly beyond any of my expectations.
My initial intent was to provide a source of information for the Penn State
AE community. Over the months since September 11, 2001 I have found that
many people have found it useful. I will continue to update the site as
new information is located. Please send any information you have to Prof.
Louis Geschwindner at email@example.com.
Minutes - Inside the Twin Towers
From their last words, a haunting chronicle of the last 102 minutes
at the World Trade Center
(Music plus Photographs using Shockwave
You May Make Donations Now!
I have provided these links but I am not in a
position to guarantee that they are legitimate. Please be careful.
September 14 was a special day
of prayer, remembrance and expression of patriotism. As a reminder
of these events, you can check out the listing that was previously on this
The major activities currently taking place are the NIST Investigation
of the WTC and the release of the six plans for Ground Zero from the Lower
Manhattan Development Corporation. These topics have been moved to the
top of the list below. As has been the case, new material will continue
to be added with the dates high lighted in red.
Observances marking 9/11 Anniversary
FEMA/ASCE Building Response Team Report
Six Plans for Ground Zero (And More)
Link to "Filling
the Void" further down on this page.
04/08/02 The New York Times comments on the
Team report that they obtained. Their conclusions are not necessarily
an accurate interpretation of what the report actually says.
04/08/02 The New York Times in an article
Report on Trade Center Echoes Lessons of Past Disasters," again draws
conclusions that are not necessarily consistent with the facts of building
response to fire. The April 8, 2002 issue of ENR contains a well written
Towers Are Safest Buildings of Them All" critique of the NYT
article and should be read by all who are interested in the assessment
of building response to fire.
to the editor discussing above editorial.
04/17/02 ENR reports on the Building
Response Team (FEMA/ASCE) presentations at the ASCE Structures Congress
pointing out that the final report will recommend no code changes.
will air a program April 30, based on the FEMA/ASCE investigation.
04/30/02 The designers
of the World Trade Center did not sacrifice safety to save money and
should not be blamed for the loss of more than 2,800 lives in the collapse
of the 110-story twin towers. "It's my opinion that they did not skimp
at all," said the engineer, W. Gene Corley who heads the FEMA/ASCE team.
05/15/02 NYT Discussion
of the FEMA/ASCE report prior to its release (May 1)
05/03/02 The final report of the FEMA/ASCE
Performance Study Team has been released. It is found on the web page
of the House Committee on Science, in *.pdf format.
05/15/02 William Faschan, of Leslie E. Roberston
Associates discusses the
process of designing skyscrapers by requiring anticipation of the unknown.
05/15/02 Reuters reports on the FEMA/ASCE
and how it
is virtually impossible to make buildings strong enough to withstand
the massive damage that brought down the World Trade Center towers.
05/15/02 The Washington
Post reports on the FEMA/ASCE report.
05/15/02 A review of the NOVA
News release on the FEMA/ASCE report.
05/15/02 The Financial
Times reports on the release of the FEMA/ASCE report.
05/15/02 It is encouraging at just how well
pointed Nadine Post and her colleagues at ENR are in getting to the
heart of the issues from FEMA/ASCE WTC report. This is an outstanding article
by folks who know engineering.
05/16/02 The Structural Engineers of California
listserv has discussed issues generated by the NOVA program. Three specific
questions and comments may be of interest. Message
794, message 874,
and message 924.
06/09/04 A series of articles in Plumbing
Engineer assesses the FEMA report, the NIST investigation and the push
to modify building codes. A must read for anyone interested in a reasoned
review of where we are headed. The combined series is available here.
ENR has once again stepped up and presented a hard hitting report on the
fear mongers centering heri efforts on teh WTC in a cover story: FIRE
PROTECTION: Skyscrapers' Supporters Infuriated By Fire Fearmongers.
Antagonists, feeding on post-9/11 jitters, magnify danger of towering infernos
(6/7/2004 Issue) By Nadine M. Post. This link will take you to the first
of a 5 page article.The articles by Richard Schulte that are referred to
here are linked directly above.
Building Code Revisions
Analysis of Collapse
11/01/01 An ENR article
that should have been linked from the first days. Massive
Assault Doomed Towers Terrorist Attacks Brings
Down World Trade Center (9/17/2001).
09/20/01 USA Today has an excellent graphic
describing the structure
and the collapse of the WTC Towers.
09/20/01 This article from the Chicago Tribune,
is an excellent statement from a well respected structural engineer, R.
Shankar Nair, former chairman of the Council on Tall Buildings and
Urban Habitat on what could have been expected and what could not have
been expected. I believe everyone should read his statement.
09/27/01 Link Corrected: 09/25/01 There
are a number of other interactive links from the New
York Times that start with the "Mapping the Surface" page and include
a seismographic image of the collapse. (A
free subscription may be needed for the NYT) and the New
York Times has an article explaining the technology
that produced the image.
excellent graphics not previously linked to this page from the San
Francisco Chronicle show the size relationship
of the airplane and the tower floor plane. Scan both forward and backward
from this site for other informative graphics.
10/10/01 Les Robertson
spoke publicly for the first time this past weekend at the Manchester,
NH meeting of the National Council of Structural Engineers Associations.
Street Journal reported on his presentation as did Chris
Hewitt, one of the Penn State AE students in attendance.
10/10/01 A semi
technical article discussing some approaches to high rise building
design approaches from the Wall Street Journal.
10/03/01 The New York Times of September 18
published an article discussing the fire
response of the WTC that, in my view had some misinformation so I had
not previously linked it. I have recently received a response
letter to the editor form Manny Herrera, a Fire Protection Consultant so
I have included both. Be sure to read Mr. Herrera's response regarding
how a concrete building might have performed.
10/18/01 An excellent article written by G.
Charles Clifton, a structural engineer with HERA presents what is perhaps
a new perspective on the collapse. This
article is well worth reading. (*.pdf format)
chairman-CEO of Seattle based Skilling Ward Magnusson Barkshire Inc., one
of the successor firms to the engineer of record for the World Trade Center,
Skilling Helle Christiansen and Robertson comments on just how good the
structural system of the WTC towers really performed. (Taken
Data on the Boeing
757, size etc. is taken from the Washington Post.
USA Today Time-line
of the attack and the period afterward.
Engineering News Record
(ENR) (9/11/01) web site has some opinions. (I am not sure
that the Penn Staters will agree with all that they say here. (LFG))
Chat with Tod Rittenhouse of Weidlinger Associates with some clear
10/18/01 One month after the attack on the
World Trade Center, A
panel of Boston area-based civil and structural engineers convened
at M.I.T. to discuss the fate of the superskyscrapers. One member of that
panel was Robert McNamara, PSU AE '63.
10/18/01 Engineers from M.I.T.
provide their input in this article from ChicagoLandConstruction.com
11/28/01 A Scientific
American article reporting on the MIT meeting.
11/28/01 MIT Technology
Review also reports on the collapse. This is not a new article, just
newly listed here with old information. It contains links to other MIT
faculty opinions on the collapse.
10/29/01 Although not actually a discussion
of an analysis of the collapse, this video clip of a news report from the
SEAOC 2001 San Diego Convention is interesting. <RealMedia>
10/30/01 The October issue of STRUCTURE magazine
has two articles on the WTC. The Cover(*.pdf)
shows an impressive view of the wreckage while one
article (*.pdf). by W. Gene Corley, discusses the search for answers
to the structural response. (The second
article (*.pdf) is linked here and below.)
11/08/01 Jon Magnusson, Chairman and CEO of
Skilling Ward Magnusson Birkshire Inc. published an editorial
(*.pdf) in the October issue of STRUCTURE.
11/12/01 Some of the information being gathered
by the ASCE/SEI investigation team and, their tentative conclusions, are
now being made public. This NYT article "Why
Trade Center Towers Stood, Then Fell" provides an up to date the review
of what these experts now believe.
11/19/01 An excellent article from the November
19, 2001 issue of the New Yorker magazine discusses the World Trade Center,
its structural concepts, the designers, the collapse and the investigation.
This is one of the must read
11/30/01 Although many have known for some
time that WTC
7 contained large amounts of diesel fuel, I believe this is the first
article to bring the collapse of WTC and its suspected cause to the forefront.
News and World Report attempt to describe the collapse through graphics.
12/06/01 Using CAD simulation tools from automotive
crash study techniques to simulate
an aircraft smashing into buildings.
12/07/01 The Chicago Tribune article quoting
Gene Corley, had of the ASCE Investigating Team, discussing the current
of the collapse of the towers.
12/10/01 The graphics accompanying the Chicago
Tribune article about the investigation provides some insights into the
of the WTC and the theories of the collapse.
12/12/01 An ENR editorial warns about drawing
and changes in future codes as a reaction to the WTC collapse.
12/13/01 An expert in fire protection has
said that inadequate or faulty
fireproofing that had gone unrepaired for years may have played a role
in the failure of the two 110-story buildings.
12/13/01 An AP article on the role
of the fireproofing in the collapse.
to the NYTimes, NYC
had been warned of the danger of the location of the fuel tanks at
01/09/02 on Dec. 20, 2001, USA Today reviewed
the events of Sept. 11 from the perspective a 3 months distance and
reveals some of the more accurate information on what happened, how many
lives were lost and how the evacuation progressed. This page also includes
interactive graphic link describing the losses.
01/16/02 Richard Gewain, a member of the federally
designated panel of engineers probing the collapses of the WTC Towers said
"Conceivably, the building
would have collapsed without the fire."
01/18/02 An excerpt from Construct
in Steel (*.pdf) Vol 14, N3, September 2001 by the Australian
Institute of Steel Construction.
02/11/02 CBS announced yesterday that it would
a two-hour documentary special on March 10 culled from the videotape
footage shot inside the World Trade Center by two young French filmmakers
during the terrorist attack on Sept. 11.
DeNiro will host "9/11" the exclusive insider's account of the World
Trade Center attack from French filmmakers Gedeon and Jules Naudet.
DeNiro is a prominent actor, director and producer living in New York City
and is a co-founder of the Tribeca Film Center which is located just a
few city blocks from ground zero.
03/16/02 The CBS
documentary "Experiencing 9/11 from the Inside"
comment on the CBS documentary.
02/12/02 The New York Times presents a "A
Wounded City" - A Photographers Journal with commentary and photographs
from some 7 of their photojournalists. You may click on the images as the
audio is being played.
02/12/02 The year in pictures - AFTER
Sept 11, 2001, from the New York Times.
degree views of NYC before and after Sept. 11.
03/04/02 Two studies try to establish speed
of jets as they hit the WTC towers.
03/04/02 The National
Transportation Safety Board has released none of the techincal information
related to the Sept. 11 crashes.
04/16/02 Les Robertson reflects on the rise
and fall of the World Trade Center towers. From The Bridge,
a publication of the National Academy of Engineering. The previous link
does not include the figures. The full volume of the journal. with figures
is available as a *.pdf
05/15/02 HBO begins the editing of its special,
narrated by former Mayor Rudolph W. Giuliani, "In
Memoriam: New York City, 9/11/01" to be aired May 26 at 9 p.m.
05/29/02 Review of HBO
machinery protected one exit stairway and saved 16 people.
05/29/02 USAToday graphic
showing how elevator equipment protected one stairway.
to Live as the Towers Died is a haunting chronicle of the last
102 minutes before the towers fell, built on scores of phone conversations,
email and voice messages. The site also includes an interactive presentation
inside the towers and a chronology of the events of September 11.
05/30/02 Accounts from the North
Tower and the South
07/24/02 The events of 9/11 exposed deadly
flaws in rescue plans. This page includes several interactive
graphics showing locations of Police and Fire Department activity prior
to collapse, audio of the emergency dispatches, and locations of units
which suffered losses.
planner points to lessons
07/24/02 The NOVA companion
web site to "Why the Towers
08/30/02 The AIA has
of the NOVA program available for rental.
voices of Firefighters - some reached much higher floors than previously
08/19/02 New York's
firefighters were hindered by a series
of failures in their response to the attack.
08/26/02 An older article
on the squabbles
between police and firefighters.
10/26/02 Report in NYT
on claim by Charles
Thornton that Petronas Towers would have withstood the terrorist attach.
disputes ASCE/FEMA report conclusions on cause of collapse of Twin
10/24/02 Press Release
issued by Silverstein
Properties on further studies that they had conducted on the WTC collapses
and its results
10/26/02 NYT article
making a comparison between the WTC
and Petronas Towers. Makes some good points and questions any conclusion
that Petronas would have withstood the attach any better than WTC.
Building condition around
There are many false rumors about the condition of other buildings in the
area of the Twin Towers. "In fact, there is no evidence to support all
the various speculation, such as rumors that 1 Liberty Plaza or the American
Express tower could come down, which is definitely not true." according
to Richard Tomasetti. A good summary of some of the buildings conditions
is provided by the New
09/24/01: 09/20/01 -09/19/01
map indicating the status
of the buildings around ground zero. I do not know the source so I
can not attest to the structural engineering accuracy of this information
but at least it is a good representation of the location.
09/21/01 Buildings.com has a listing of the
square footage of space
destroyed or damaged in lower Manhattan. There is no indication that
this summary has been coordinated with the professionally conducted structural
assessments but it still provides some perspective to the problem.
Washington Post has a fine diagram of the underground
condition around Ground Zero, as of Sept. 21, 2001
09/25/01 09/24/01 Light Detecting and Ranging
used to measure
the rubble as reported by CNN. The same image, with some interactive
views of the site before the attack is available from the New York
Times. (A free subscription may be
needed for the NYT)
09/27/01 added link: 09/24/01 CNN.com has
an excellent 3-D
graphic of the status of buildings in lower Manhattan.
09/28/01 ENR reports in its Sept. 24 cover
story that most surrounding
buildings are safe.
10/08/01 The Structural Engineers Association
of New York has a map
assessed buildings as of September 22, 200. You may also go directly to
their web page.
say most of the 67
city landmarks below Chambers Street emerged ash-laden but unscathed
from the attack. But they want to assess several buildings close to the
collapsed towers, where access is still limited.
10/05/01 27.5 Million square feet of Commercial
Space Believed Destroyed or Damaged in Lower Manhattan. As reported
by Buildings.com on Sept. 14.
10/05/01 Four Percent of Manhattan's Total
Space Was Destroyed in the World Trade Center Attack as reported
10/18/01 One Liberty Plaza is scheduled
to reopen on Oct. 22 with a ribbon cutting ceremony. There had been
many rumors that the building was in danger of collapse.
11/30/01 Verizon has nearly all of the voice
circuits knocked out by the WTC attacks restored and is now planning
the rebuilding of its system.
11/30/01 The reopening
of three subway stations damaged by the destruction of the World Trade
Center is at least three years away, a chief engineer at New York City
12/05/01 December 4 update on the condition
West Street with reference to a few others. This classic building performed
admirable even though many levels of spandrel beams were distorted in the
collapse of the WTC.
12/06/01 The graphics
with the above NYT article provided a view of the physical relationship
of 90 West Street to the other buildings. Go to the "Fireprofing" tab for
a comparison of the fireproofing systems for 7 WTC and 90 West St.
12/06/01 This article discusses the retail
situation in lower Manhattan.
12/06/01 ENR reports that NYC is ready to
back to their owners some of the buildings compromised by the Sept.
01/09/02 As of December 19, ABC reports that
at the WTC site are finally out.
01/09/02 NYC has started
to build viewing
platform around the WTC site to accommodate the publics desire to see
01/16/02 The Winter
Garden looks to a rebirth through its restoration. This includes a
very fine graphic.
WTC 7 with tentative ground breaking set for September 11, 2002.
02/11/02 The World Trade
of the E subway line reopened Monday, January 28 for the first time
since Sept. 11.
02/11/02 The most extraordinary
thing about the recently reopened World
Trade Center subway station is how hauntingly ordinary it can look.
02/11/02 The Ritz-Carlton,
New York Battery Park hotel plans to open.
02/11/02 Parents and
teachers at Public School 89, which was evacuated after the terrorist attack
of Sept. 11, have voted by a wide margin to return
to their school on Feb. 28.
02/11/02 While redevelopment
of the World Trade Center site is scheduled
to begin soon, other involved groups fear the effort may be rushed.
02/11/02 For a while
on Monday, February 4, office workers near ground zero could entertain
the illusion that life was back to normal at the World
02/11/02 SouthWest NY
World Financial Center, which was damaged on Sept. 11, has reopened.
02/12/02 At least 22
of the 45 buildings seriously damaged on Sept. 11 remain closed.
03/04/02 The tenants
Cedar Street, one block south of ground zero, are excited and fearful
to return home.
School 89 students arriving at their school for the first time
since the September attack were mostly jubilant.
03/23/02 The steel began
going up into the ravaged eastern facade of the Winter
Garden of the World Financial Center.
of the eastern
facade of the Winter Garden has been released.
Paul's Chapel on Broadway at Wall Street closed its doors to the public
and opened them to the firefighters, police and other workers at the nearby
World Trade Center site. Staffed by volunteers, the chapel has provided
food and refuge around the clock ever since.
04/16/02 Within a few
of the exteriors of many of the buildings around the WTC site will
04/18/02 I had not seen much written about
St. Nicholas Greek Orthodox Church previously. The tiny church building
was crushed on September 11. Rebuilding
17, 2002 issue has an article about the church and the future the parishioners
hope to rebuild.
04/18/02 The Greek Orthodox Archdiocese Of
America reports on St.
Nicholas Greek Orthodox Church, 155 Cedar St., NY, NY.
04/18/02 The St. Nicholas Greek Orthodox Church
site includes photos of the church as well as the site after Sept.
of St. Nicholas Greek Orthodox Church in the shadow of the WTC.
04/18/02 Wall Street Journal article with
location of St. Nicholas Greek Orthodox Church and the New
York Time published a brief article.
04/18/02 This article on St. Nicholas is essentially
the same as those above. It includes a photograph
the collapsing towers behind St. Peter's Roman Catholic Church which is
uptown from the World Trade Center on Church Street.
Trust Building at 130 Liberty Street remains deserted but still a tribute
to the structural strength of this ordinary office building.
remains found in the clean-up of buildings surrounding Ground Zero.
06/21/02 The rebuilding of the Winter
Garden continues, It may be that this provides a memorial to those
lost at Ground Zero without all the turmoil taking place surrounding an
07/08/02 No remains found in Deutsche
Bank building across from WTC site.
WTC Below grade conditions
09/18/01 The New York Times has published
an extensive article on the foundation of the entire World Trade Center
structure, reporting on input from George J. Tamaro, a staff engineer
for the Port Authority in 1967, when he helped build the World Trade Center's
basement, a 16 acre, 70 foot deep hole in the ground.
09/26/01 Concern has been expressed over the
stability of the "bathtub"
substructure of the WTC as the debris are removed. Two firms have been
hired to guide the demolition and subgrade consideration as reported by
10/08/01 Visual surveys indicate roughly 50%
of the seven-level "bathtub" basement
structure of the World Trade Center is now rubble as a result of the
impact of the collapse of the twin 110-story towers, from ENR 10/08/01.
10/08/01 Along with the basement structures,
the subways have
sustained significant damage. Access is now showing the extent of the needed
10/01/01 New York Times article with graphic
on what it will take to rebuild
the subways under the WTC.
10/10/01 The basement
structure gets further assessment as reported in this New York Times
10/25/01 The process of stabilization
of the "bathtub" has begun according to ENR.
11/01/01 Two of the NYC Subway
lines are set to reopen well on advance of their anticipated date.
11/02/01 The extensive underground mall area
is now slowly being reached. Millions
of Dollars of gold and silver are safe in a massive vault.
11/19/01 About 40 of the estimated 1100 tiebacks
needed to complete the cleanup of the WTC site have been installed in recent
12/05/01 As the clean
up continues in depth focus is being directed to the "bathtub" foundation.
line damaged in attack may reopen much earlier than originally anticipated,
according to Jan 4, 2002 NYT.
02/11/02 Damage to the underground wall that
helps hold back the Hudson River at the World Trade Center site has city
officials considering the
installation of a new concrete wall, a large job given the enormous
size of the so-
03/16/02 Sections of the "bathtub"
03/23/02 Workers are hurrying to shore
up and patch a 90-foot-wide gash in the bathtub.
04/16/02 The engineer who oversaw the construction
of the World Trade Center "bathtub"
describes the recovery efforts. From The Bridge, a publication of
the National Academy of Engineering. The previous link does not include
the figures. The full volume of the journal. with figures is available
as a *.pdf
05/16/02 Photos showing the condition of the
tunnels between Exchange Place in New Jersey and the WTC as well as
some photos of the "Bathtub" clean-up.
WTC site clean-up
The clean up that now must take place in both NYC and Washington will involve
many from our industry. The Structural Engineers Association of New York
under the direction of Thornton-Tomasetti is coordinating the structural
engineers. Kyle Krall PSU AE '87 form the NYC firm of is one of the
PSU AE's who is closely involved in those efforts. He provides the following
on Saturday Sept. 15. Kyle had previously submitted a report on Sept.
Cerino, PSUAE '95, Project Manager for DeSimone Consulting Engineers,
P.L.L.C., NYC is working on site to help the demolition teams in the clean-up.
He has provides some thoughts.
01/11/02 Chris Cerino has provided an update
on his firms activities at Ground Zero along with some interesting
09/28/01 As the removal of debris continues,
a plan is emerging to
conduct the massive effort as reported in the Oct. 1 issue of ENR.
10/17/01 Timothy Schenck, a structural engineer
with HLW International, LLP, NYC, and former CE graduate student, sent
email to Dr. Jeff Laman detailing his involvement at the site, along
with some interesting
10/18/01 This article on the cleanup
also discusses how the buildings fell. This should be read with some skepticism
at this point in time.
10/23/01 President Bush Proposes $6.3 Billion
for New York City, $925 Million to Rebuild
10/23/01 While the structural investigating
teams search for information on just how the towers collapsed, others are
Mountains of Debris for Slivers of Solace."
10/30/01 The October issue of STRUCTURE magazine
has two articles on the WTC. The Cover(*.pdf)
shows an impressive view of the wreckage while one articlle
(*.pdf) by James Stefano discusses the involvement of the engineering
community in the cleanup. (The second article
(*.pdf) is linked here and above)
11/12/01 A report from October 25 indicating
expects to be finished with the WTC 7 cleanup by some time in November.
11/12/01 ENR reports that New York City officials
managing cleanup of the World Trade Center are asserting more control of
the disaster site and expediting
operations by limiting the number of police and fire personnel handling
victim recovery operations.
11/12/01 Safety at Ground Zero has always
been a concern but the NYT reports that it is a growing
concern as the cleanup progresses.
11/19/01 ENR reports that New York City could
soon be turning to San Francisco-based Bechtel Group Inc. to manage the
cleanup of the World Trade Center site.
11/19/01 The fire that continues to burn at
the WTC site is said to be the longest
commercial building fire in United States history.
12/17/01 The last
remaining piece of standing wall of the WTC towers cam down Saturday,
01/09/02 The clean-up takes on an new
dimension as the ongoing project moves into its 4th month.
01/16/02 ENR Reports that Bovis
takes lead at WTC cleanup, as subway repair fast-tracks.
01/16/02 Cleanup moves below
grade where the challenges are even greater.
01/16/02 NYTimes discussion of the enormity
of the cleanup effort.
01/16/02 The viewing
platform at ground zero generates a great deal of interest as well
01/18/02 Will the huge financial risks contractors
cleaning up at ground zero have assumed make it hard for them to get bonded
for other construction projects as they continue to
work without insurance.
Steel, Milton, PA (Vel Holcombe AE '64 and Chris Holcombe, AE '90)
is supplying steel for a bridge to be used in the clean up at ground zero
as reported in the Daily Item.
01/24/02 The NY Times reports that the clean
up is moving quickly at Ground Zero.
03/04/02 Analyses of air
quality near the site of the World Trade Center collapse have
produced some encouraging findings.
03/04/02 Confusion over the air
quality inside and outside buildings near ground zero was clearly evident
again yesterday at an investigative hearing before the national ombudsman
for the federal Environmental Protection Agency.
03/16/02 Crews are Rushing to Restore
WTC's Hard-Hit Infrastructure.
03/16/02 New funds are being made available
to push the rebuilding
of NY infrastructure.
03/18/02 The end is near in the cleanup
at Ground Zero.
03/28/02 As cleanup moves to a conclusion,
the NYFD is using satellite
data to record the location of effects in an attempt to provide data
that may help engineers understand how the towers collapsed.
04/16/02 The source of the famous WTC
Flag is confirmed.
04/30/02 ENR Award of Excellence Winner: Michael
Burton - Creating order from chaos in leading the public-private construction
team that responded to the Sept. 11 devastation at Ground Zero.
clean-up task is nearly
05/15/02 Recovery winding
down at Ground Zero.
05/15/02 Sifting the last
tons of debris.
of the air after Sept. 11 continues. Whether there will be any continuing
impact is still to be seen.
05/16/02 MSNBC reports that Federal and city
environmental officials have announced they would pay
for professional cleaning and air-quality testing of the apartment
of any area resident who requests the work.
05/29/02 Clean-up and recovery to conclude.
05/29/02 WTC cleanup to end with May
05/29/02 Details of the ceremony
to end the clean-up at Ground Zero and some of the controversy.
05/30/02 Tha last
column, No. 1,001 B of 2 WTC, has come down.
05/31/02 Last emergency
cable removed in WTC area
05/31/02 The final elements have been removed
and the site
is now silent.
06/21/02 An ENR summary of the winding
down of the clean-up at ground zero
06/21/02 Clean-up draws to an end as the Fresh
Kills landfill is almost as empty as Ground Zero.
has been completed
07/08/02 William Langewiesche is the author
Ground: Unbuilding the World Trade Center," on life at the World Trade
Center site after the towers fell. It is a comprehensive look at the inner
workings of the World Trade Center cleanup effort—and the longest piece
of original reporting The Atlantic has ever published. "American
Ground" will be published in book form by North Point Press (a division
of Farrar, Straus & Giroux) in October.
Occupancy of the WTC
09/18/01 The Dallas
News has a WTC graphics with a listing of the companies that occupied
the various floors.
09/18/01 The American Society of Civil Engineers
has a list of the engineering
related firms located in the Twin Towers and the number of that societies
members and status for each company.
09/24/01 The New York Times has a great deal
of information on line, some may require completing a free subscription.
This link is the best I have seen at showing which
firms occupied specific floors and the status of their people as of
Sept. 16. Both the north and south towers can be viewed.
10/01/01 The Wall Street Journal listing of
that occupied the twin towers and the status of their employees, updated
10/08/01 Architectural firm, Mancini
Duffy, with 140 employees in the World Trade Center, survived unscathed
and were back to work in three days
11/07/01 The November 4, 2001 New York Times
has reported that a Secret
C.I.A. Site in New York Was Destroyed on Sept. 11.
07/24/02 Companies who
lost employees in the WTC have begun to put together career
profiles of the employees to assist families in securing financial
support based on future earning potential.
08/21/02 With the New
York City medical examiner office's release on Monday of the most
thorough list of victims, it is possible to chart the devastation by
ZIP code. Be sure to check out the interactive mapping of location by zip
code of victims homes linked on the right side of the page.
08/28/02 7 Missing Since
Structural Investigation Teams
An ENR review (9/13/01)
of the firms that are beginning the investigation/assessment of the remaining
buildings. You will note that PSUAE has strong connections with all of
these firms. Most of the names mentioned are known personally by the AE
held a media briefing on Friday, Sept. 14. The principle investigators
of the teams ASCE recently established to study the devastation held a
live telephone Media Briefing. The team
leaders appealed to the media for still photos and video footage to aid
in their investigation. They also discussed the procedure they will take
for the study which will later be published and released to the public.
You may hear
the briefing or read the transcript at this site.
AISC is establishing a task
force to study the WTC collapses.
The Structural Engineers Association has provided some structurally
facts in a message received by the Penn State AE Structural Engineers
Association student organization.
Press Release from the Structural
Engineers Association of New York in MS WORD format. Among other things
they lay to rest the rumor about 1 Liberty Plaza. The current President
of SEAoNY is W. Richard Mahoney, PSUAE ' 71 <firstname.lastname@example.org
The North Jersey Branch
of ASCE is collecting names of volunteers.
10/03/01 The National Science Foundation has
some projects related to the Attack on America.
10/08/01 Dr. Abolhassan Astaneh-Asl, professor
at the University of California at Berkeley and Ph.D. advisor of Dr. Judy
Liu PSUAE '95, has reported, from preliminary
results of his investigation at the WTC site, that the buildings withstood
the impacts of the planes.
10/08/01 A better report of this information
came from the Associated
10/19/01 Prof. Astaneh-Asl, although no longer
a part of the ASCE lead team, conducted an interview
on National Public Radio, covering his assessment of the collapse of the
10/25/01 A very good article on the forensic
investigation of the WTC collapse from Architecture Week.
10/29/01 The President of SEAoNY has asked
to help identify steel as to location within the WTC towers before
any of it gets sent to recycling. This article also discusses other new
aspects of the cleanup.
11/01/01 Edward M. DePaola, president of the
Structural Engineers Association of New York (SEAoNY) issued a call
for volunteers to form a rotation at the two scrap yards in New Jersey
receiving steel from the World Trade Center's twin 110-story towers. All
of the steel in the Towers was marked during construction as to its location
in the building. This information is allowing the cleanup and investigation
teams to identify which floor where each piece of steel came form.
12/05/01 Again, Prof. Astaneh-Asl has given
an interview, this time to the Chronicle
of Higher Education. The value in this article is in the information
gleaned from the other interviews with members of the ASCE Team.
12/05/01 Academic teams using high-tech
methods to assist in the WTC investigation are reported on in the Chronicle
of Higher Education.
12/17/01 An assistant professor of fire science
at John Jay College of Criminal Justice criticizes
the ASCE/FEMA investigation.
12/18/01 The National
Science Foundation World Trade Center information site.
01/09/02 Some are calling for a broader
inquiry into why the Twin Towers collapsed, including the two Senators
01/16/02 Another general article from the
Associated Press on the
01/18/02 The National Institute of Standards
and Technology will
conduct its own study to supplement the ASCE/FEMA sponsored teams study.
02/11/02 A February 2, 2002 report on some
aspects of the ongoing
03/04/02 The FEMA/ASCE
team report indicates that the diesel fuel in WTC 7 was instrumental
in the buildings collapse.
03/04/02 Widows and other survivors, as well
as a number of engineers and fire safety experts, insist the FEMA/ASCE
investigation into the WTC collapse is insufficient and intend to ask
Congress to expand the inquiry.
03/16/02 The head of NIST calls for new
standards in testimony before Congress.
03/16/02 Lawmakers continue to discuss the
WTC investigation and what
future changes may need to be made in rules for skyscrapers.
03/16/02 The complete statement of Dr. Arden
L. Bement, Jr. Director, National Institute of Standards and Technology,
United States Department of Commerce before the Committee on Science, House
of Representatives, United States Congress. “Learning
from 9/11: Understanding the Collapse of the World Trade Center”
03/16/02 Another analysis
of the statements of Arden Bement.
03/16/02 It would take $40
million to adequately study the performance of the collapsed twin,
110-story towers of the World Trade Center and surrounding buildings damaged
by the Sept. 11 terrorist attacks, said W. Gene Corley, in testimony March
5, in Washington, D.C., before the House Science Committee.
Tower Can Withstand Attack as Jets Get Bigger, Expert Says, reports
on a presentation made by Les Robertson.
Institute of British Architects initiates a fire study in response
ot the WTC tragedy.
04/18/02 Engineers monitoring the scrap from
the collapsed WTC have identified
a piece that came from floors 100-103 of tower one.
04/16/02 As fire protection undergoes close
scrutiny, there are
questions raised about the standard fire tests used in current practice
to establish building fire ratings.
05/15/02 Draft legislation unveiled May 1
before the House Science Committee would give the National
Institute of Standards and Technology the lead role in disaster investigations.
05/15/02 Wider Inquiry Into Towers Is Proposed
NIST to lead.
05/15/02 W.Gene Corley, Ph.D., P.E., S.E.,
team lead for the ASCE/FEMA World Trade Center building performance study
team presented these
remarks at a press conference on the introduction of "National Construction
Safety Team Act."
05/15/02 The House Committee on Science legislation
on follow-up investigation.
In Memoriam - Penn State
First Hand Reports - NYC
01/10/02 Penn State has now confirmed that
Penn Staters lost their lives as a result of the September 11 events,
3 were from the College of Engineering. Linked information is from the
Center Daily Times of October 2, and October 15, 2001 and The Penn Stater
of January/February 2002.
10/30/01 update:10/25/01 update: 10/08/01: 09/24/01:
09/20/01: 09/19/01: Michael
Eskra PSUAE '00 of Flack + Kurtz in NYC sent a brief email to Prof.
Ling. His NYC roommate Dave Suarez (IE '99) is missing. Mike as sent an
update with a note about the memorial service for Dave and I have received
an email from Deloitte Consulting, including Dave's
obituary and have just received a photo of Dave. An article from the
Center Daily Times has been added. On 10/25/01
I have added information on two scholarships that have been set up in Dave's
honor. These provide a most fitting way for any of you who knew Dave to
honor him and to express to Mike your sorrow at the loss of his friend.
The NYT Portraits
of Grief profiled Dave on October 26.
11/12/01 Mike Eskra has set up a web pagehonoring
Dave Suarez that all of Mike's and Dave's friends should visit.
Penn State Alumni Association has provided a brief write-up
on each of the Penn Staters lost (*.pdf) on September 11, 2001.
Penn State Intercom reports on the status of scholarships
honoring Kermit C. Anderson and David Suarez
First Hand Reports - Pentagon
A first-hand report comments from Lynda
Tollner PSUAE '84 who was on the concourse level when the first plane
Another first hand report from Kenny
Pliska PSUAE '85 who was on his way to work.
PSUAE '85 tells the harrowing story of her mothers escape from the debris.
PSUAE '01 was to start work Wednesday in NYC.
PSU Finance '96 writes about the ferry trip toward the city.
Kennedy PSUAE '98 works in the West Village but saw the first plane
hit the North Tower.
Hanel PSUAE '99 works about 30 blocks from the area but has provided
her perspective in a note to Nancy Witherite in the Assistant Deans Office.
of the engineering firms located in the the towers was American
Bureau of Shipping. They were on the 91st floor of the North Tower.
Although these folks are not Penn Staters, their story should be shared.
It is provided by a friend of Prof. Mistrick who used to work for this
company. The good news is that all 11 employees got out.
Kravette, a managing director of Cantor Fitzgerald comments on his view
from the lobby of the North Tower and the free
falling elevators and the fire ball at the lower levels of the tower.
10/01/01 Notes from Robert
Ivy, FAIA, Editor-in-chief of Architectural Record. He writes "A number
of you have asked what happened in the intervening days after the tragedy.
Here is what I can report in a piecemeal and highly personal manner: "
10/10/01 This article tells of escaping
from an elevator, stuck at the 50th floor. It is particularly interesting,
from an engineering point of view, as it describes the construction of
the walls of the elevator shaft.
Street Journal Online News Room recall the events of Sept. 11 in an
extensive article. There are also links to other firsthand reports.
01/24/02 Staff of National
Public Radio discuss that organizations response to the events of September
03/19/02 Dennis Smith, an 18-year veteran
of the New York City Fire Department, sets out to describe the attack on
Trade Center and the heroic rescue efforts that ensued in Lower Manhattan.
08/21/02 Al Masetti worked in Tower One. His
story about one of the victims as well as his thoughts based on being
in one of the stair towers during the event are quite insightful.
Reports from others
09/19/01 Lanty Butchko PSUAE '95 has provided
what I believe to be the complete update on the Southland Industries group
at the Pentagon. He was not at the site but
had worked there for two years. He reports that Shawn Cingle PSUAE '00
was on site in our trailer at the time of the crash, located within about
100 yards of the building on the opposite side of the crash. He and
4 of 4 Southland employees are safe and healthy. This, along with
the report from Jess Kelley '98 AE, <JKelley@southlandind.com>
that she was in San Francisco but that "the entire Southland Industries
Pentagon Job site personnel are ok and accounted for" provides all I have
Lanty indicated further that Southland is part of a design/build team
that expects to be working on the renovation
of wedges 2-5 over the next 10 years. Tim Michael PSUAE '91 will
have an instrumental role as our project manager. The crash affected
part of the area that was 1st on that renovation schedule and we are currently
unsure of how we may be involved in its repair.
I received an message from David
M. Rubando, a PSU '96 graduate from the Structural Design & Const.
Engineering Tech. program at Penn State Harrisburg. David was in the Pentagon
at the time of the attack.
Forrest PSUIE '85 sent an email that he received from a close
friend that had transferred to the Pentagon just before the attack.
It doesn't quite describe the engineering point of view, but it does give
a personal account from 3 windows to the right of the plane's impact.
According to Judy Liu '95 AE (via Rick Burt '96), Chris
Cerino '95 AE <CCerino@de-simone.com> is with DeSimone Chaplin
& Dobryn in NYC. Both he and Jessica are doing OK, but he was
stuck in the city last night.
A second hand report from Jonathan
Dougherty on class of '99 and '00 members.
John Bechtel '92 <email@example.com> of Turner, currently located here
in State College, reports that the 15 Turner employees from their field
office located in one of the Twin Towers all got out safely. We do not
know if there were any PSUAE's in that group.
Steve Darr '75 <firstname.lastname@example.org> reports that, given the situation here
in NY, phone calls can sometimes be received. Getting a line out is sporadic
due to the volume. Cell phones the same. Best to hold tight for a day or
two. The city is quiet, almost empty. People are encouraged to stay home.
General transportation by train is about the only means into the city.
Subways run but since the biggest lines can't get passed WTC they are essentially
useless. Many businesses are closed or on limited operations. No trucks,
cars, taxis or buses - only ambulances with sirens wailing and an occasional
fighter overhead. People are meandering along lost in thought, shock and/or
both. An overriding calm is the immediate impression combined with an eerie
I learned from his sister that Kyle Krall '87 <kKrall@lzagroup.com>
with Thornton-Tomasetti was on the scene this morning Sept. 12, at 7:45
with other engineers and a police escort, to assess other structures in
the area. Kyle then sent an update.
See the ENR 9/13/01 link below.
Sue Davis, PSUAE '92, <email@example.com> editor ot Structural Engineer,
sent this message: Hello everyone, I was writing my
comment today for the October issue of Structural Engineer, and I felt
compelled to include my true feelings about the tragedy and share them
with my Christian friends, especially those that missed 7:22. In Christ,
In a message form Tiffany Houser PSUAE '98 <firstname.lastname@example.org> she
says, we are all concerned about our friends in these cities. We
have heard from Pat Chan, who worked in the city, and Tzy Chow (who we
all know can be anywhere at any time!) I have heard from many people
in the DC area - nothing but good news.
Ian C. Schmellick PSUAE '98 <email@example.com> writes. Just
to let you know. All Arup NY employees are safe and accounted for.
Our office was unfortunate enough to see everything from beginning to end,
but were fortunate enough to be out of harms way. David Jones, Kamesha
Bell, Rebecca Kennedy (no longer at Arup, but safe and sound), and Myself
are all ok. Brian Streby is still in the UK as far as I know, and
OK. That covers our 1998 AE class that's here at Arup I believe.
Amy Koerbel is OK as well, and so is Eric Balkey. Eric is down on
site at Philly. I don't know their graduating years.
help in analysis of collapse
09/27/01 The Washington Post collection of
10/01/01 The Washington Post collection of
and video clips.
You have seen many pictures but this series of 6 show clearly the collapse
of the twin towers. These photos came to us from Kevin Choi <KChoi@kpff-la.com>
PSUAE '00 and were taken by someone at NBBJ.
One of our 4th year students, Megan Hawk, < firstname.lastname@example.org> provided
this power point
show of pictures form her sister, originally from a friend whose father
worked on the 80th floor. He was not at work this day.
Here is a web site of images... it has the 1 meter, finer resolution IKONOS
images which have incredible detail considering they are taken from
space. The page might take a while to load if you are on a slow computer.
The Washington Post web page has a series of photos
showing the impact and the collapse.
Les Robertson, as the structural engineer for the World
Trade Center has a number of pictures on his web page that are reminders
of the grandeur that was the World Trade Center. His main
web page also has a panoramic view.
09/27/01 Space Imaging has provided free images
from space of both the WTC and Pentagon
from space. The home page opens with an image of the WTC that flips from
before to after.
10/23/01 These pictures were taken from the
Goldman Sachs jotsite in Jersey City. They were taken by Kline Iron &
Steel Co., the steel fabricator from Columbia, SC. and provided by
Tom Ferrell of Ferrell Engineering, Inc. who furnished connection designs
for the project. The are in a powerpoint
Is New York" presents a gallery and on line exhibition
of photographs relating to the events of September 9. Images are donated
from amateurs and professionals. All images are available for sale for
$25 with the net proceeds going to the Children's Aid Society WTC Relief
Fund. This site includes the largest number ( I have viewed over 300) and
greatest variety of images I have seen chronilcing the disastrous events
of the day and the aftermath. It is well worth the time to view, even if
you do not intend to purchase any prints.
11/07/01 I received a very detailed aerial
(or space) view of ground zero that I have linked in two sizes, large
(3701KB) and 25%
(289KB). The smaller one gives significant detail but the larger one
is quite impressive. I have not been able to identify the exact source
for this but I do know that it came form the United Nations web site at
11/13/01 The New York Times has an extensive
collection of interactive
graphics to explain aspects of both the WTC and Pentagon
attacks and aftermath.
12/05/01 Laser Scanning Technology from the
GeoSensing Systems Engineering group of the Department of Civil & Coastal
Engineering at the University of Florida provide another interesting aerial
12/17/01 Trinity Church, Broadway at Wall
Street, has a collection
of photographs that chronicle the events from the perspective of a
01/22/02 A collection
of images on Terrorism and the the World Trade Center from Yahoo News.
01/22/02 Three photos by Jeff
Mermelstein on the NY Times web site.
01/22/02 The New Yorker Magazine cartoonsrelating
to the attacks and the environment in the aftermath.
03/04/02 The U.S.Army web page on the WTC
disaster response has some amazing graphics and information.
September 11 Photo Project
05/16/02 MSNBC slide
show and video image collection is accessible for this page. Check
link on page left.
05/29/02 A photographer approaches his photographs
of Ground Zero as art.
07/19/04 Steve Spak has moved his photograhy
sitre and has more Grouond Zero photos and books available.
The South Tower (2 World Trade Center) collapsed first. A very clear photo
of the initiation of the collapse was taken by Amy Sancetta of the AP.
Note the tower tilting
to the south.
From a somewhat different direction, pictures 10 and 11 on the Washington
Post web page show the South Tower begin to collapse with a tile southward
and return back to somewhat level and then twist slightly clockwise.
WTC facts: Design and
Insurance Industry response
09/21/01 The American Iron and Steel institute
published a pamphlet on the World Trade Center in approximately 1964. "Contemporary
Steel Design," Vol. 1, No. 4. The publication is now available in pdf format.
The files are very large so it could take a long time to download on a
slow connection. Cover,
09/28/01 Engineering News Record "125
years in ENR History" high lighted the World Trade Center twin towers
in its 1999 series in which they discuss some of the special aspects of
Trade Center statistics from Architectural Record.
10/02/01 A post September 11 graphic of the
tallest building as taken from the San Francisco Chronicle.
Tribune has a article that should be of interest. It addresses some
design issues and has some pertinent comments from Les Robertson from a
conference last week. And another article by the Architecture Critic of
09/25/01 The Twin Towers contained more than
200,000 tons of steel, 425,000 cubic yards of concrete and 600,000 square
feet of glass in 43,000 windows. Another New York Times article discusses
of the collapse.
Record World Trade Center Site.
10/05/01 Since at least 1998, there has been
significant disagreement over the definitions
for the "World's Tallest Buildings." I received an interesting article
from Structural Engineering International that I believe is from March
1998. Unfortunately the individual who sent it to me did not include the
author information. It is still an interesting article.
10/08/01 Architectural Record article on
history of World Trade Center.
was listed on this site but it has been completely redesigned so it is
worth noting again. It contains many photographs of the construction of
the WTC towers as well as a great deal of information on the collapse and
10/18/01 An article
from Skyscraper.org about the original
construction of the World Trade Center towers.
with its "Skyscrapers: The New Millennium" exhibit in The Octagon, the
American Architectural Foundation (AAF) is displaying in the adjacent AIA
headquarters lobby the only original
model of the World Trade Center known to be in existence.
web site with many great photographs.
11/01/01 The October
2001 issue of Structural Engineer included a brief structural
history article (*.pdf) on the WTC.
News Record Cover and Feature articles from the past history of the World
11/12/01 An interesting discussion from CITY
Journal of the political
aspects of the development of the WTC project from its original inspiration
in the 1950's and the meaning for the reconstruction effort of NYC.
12/05/01 A short
series of some early photos and facts of the WTC (As well as some Sept.
12/05/01 A profile of WTC Architect Minoru
01/11/02 The National
Building Museum is holding an exhibition honoring the WTC entitled
Towers Remembered" through March 10, 2002.
02/11/02 "WTC: Monument," exhibit
opens Tuesday February 5, 2002 at the New-York Historical Society,
Central Park West and 77th Street.
02/11/02 The World
Trade Center Towers in film.
03/18/02 Eric Darton published a book, in
early 2000, called "Divided We Stand, A Biography of New York's World Trade
Center". The result of eight years of research, writing and revision, it
also distilled the cumulative associations of my 50 years as a New Yorker
and witness to the city's heroic and deeply flawed trajectory of development.
He is continuiong to add to the information through a web
site that is quite interesting.
04/16/02 Seattle's IBM
Building was the precursor for the World Trade Center. This article
form the Puget Sound Business Journal talks a bit about IBM and WTC.
08/19/02 PBS Building Big WTC
fact sheet web page.
08/19/02 Les Robertson lists the many "firsts"
of the WTC.
PSU AE Faculty comments
09/25/01 Questions arose early about the insurance
loss associated with the attack on the World Trade Center and whether the
war-acts exclusion of most insurance policies would be invoked. This Sept.
24 Newsweek article discusses the estimated losses and also states
that the insurance industry was not going to consider invoking the war-acts
exclusion and that they had already begun writing checks.
10/04/01 The insurance industry appears to
the situation in a prompt and caring way.
10/23/01 Contractors and other construction
industry officials had better start planning for bad news when they go
to renew their insurance
according to an article in the October 22 ENR.
10/23/01 The legal battles have begun as the
leading insurer of the WTC sues
to limit their coverage. This page also includes links to other insurance
related NYT articles.
11/08/01 An email was received without attribution
that indicates that billions of dollars of insurance to rebuild the World
Trade Center could depend on a single
11/12/01 Federal Government looks to limit
insurance company liability for future terrorist attacks.
11/27/01 As time passes, less critical losses
are identified. This article is an interesting assessment of the motor
vehicle losses at the WTC and the insurance industry response. Of particular
interest is the extent of the damage to Police and Fire Department vehicles.
11/28/01 Lloyd's of London has raised
its estimate of net losses from the World Trade Center attacks by 47
percent to $2.8 billion.
03/04/02 Holder of WTC lease settles
with two insurance carriers.
Lloyd's of London has again
its loss forecasts.
04/30/02 Insurer Insists
9/11 Was a Single
Event, Not 2.
06/04/02 A setback in
the attempt to have the events of Sept. 11 declared two
08/19/02 Estimate of
loss raised to $8.2
08/19/02 Lawyers for
Larry A. Silverstein, the World Trade Center developer, and Swiss Re, the
lead insurer, are to make settlement
offers to a federal judge in Manhattan.
Offers Fail to End Trade
Center Insurance Battle.
08/26/02 Date set for
one of two
possible trials in insurance claim cases.
09/28/01 09/27/01 There are several bit map
images for your desktop circulating through the Internet. If you have not
already found a flag for your Windows Desktop, perhaps one of these would
Flag, or Pair of
Flags. There is also a fine flag
for background images on a web page.
11/12/01 For the Patriotic
Penn State Fan, here is a special image.
10/03/01 The U.S. Postal Service has released
the design of a new
postage stamp to honor the renewed spirit in America. See the United
We Stand postage stamp.
Am The Flag, words and images.
11/27/01 The oval Penn
State Nittany Lion with the US Flag in the background for all you Penn
07/04/04 Red Skelton's reciting of the Pledge
07/04/04 Charlie Daniels Band has re-recorded
the Red Skelton Pledge. You can listen to a brief sound clip on their web
10/04/01 As expected, there are many rumors
associated with the attack that are circulating, particularly on the internet.
CNN has an informative article debunking
many of these rumors.
10/04/01 The Urban
Legends site referenced in the CNN report discusses various rumors
to come out of the terrorist attack with a rating system of true, false,
ambiguous and indeterminate origin. Click on the "Rumors of War" link.
10/30/01 updated link: 10/25/01
The New York Times presents PORTRAITS
OF GRIEF Profiles: Among the Missing. Glimpses of some of the victims
of the Sept. 11 attack on the World Trade Center and the Pentagon. The
intent is to publish a portrait for every person lost in the attack of
September 11. This page is for October 26, 2001 and it includes the portrait
for Dave Suarez. All other days portraits can be reached from this page.
MEMORIALS - For the Families, a Chance to Share Tears and Love, NYT.
10/25/01 A New York
Times article honoring
the rescuers, including stories of the appreciation for the many they
assisted and saved. The page includes portraits of the rescuers.
site is intended as a place to remember
and celebrate the lives of the men, women and children who were lost
as a result of the events of September 11, 2001. Included on this site
is a list (as currently updated) of those who lost their lives along with
a Guest Book for each.
10/04/01 The American
Society of Civil Engineers have provide an "In
Memoriam" list identifying members who lost their lives in the Attack
10/04/01 The American
Institute of Architects has announced a World
Trade Center Memorial Fund.
9/11 in art
The God Bless America site that is also listed at
the top of this page is re-linked
09/28/01 Another tribute
site "We Will Remember"
is worth a look. The music background is also worth the visit. Be sure
to follow the links, especially the "visitor submissions" which includes
the Iwo Jima photo and flag raising on the WTC debris and the "Crying Bald
to the United States and those who lost their lives in photos from
around the world. This is a very large page so it could take a long time
to load, but the images are well worth the wait and will show that this
is a world wide attack on mankind.
09/25/01 Another series
of pages in tribute
to America. Many of the images are the same as the above link but still
worth viewing. These images
seem to have originally come from this page, which is presented in
pages, so it takes much less time to load.
11/01/01 This site is
presently being established as a permanent home for tribute
pages remembering all of the heroes and victims lost as a result of
the tragic events of September 11th, 2001. Included are links to the CNN
Missing site and the Irish Tribute page.
11/01/01 The National
Fire Protection Association has a few interesting articles in its November/December
Journal. Unfortunately, they are only available by subscription. They do
have an on
line article on a day with the Fire Fighters of NYC which includes
several photos. They also give a very nice cover
01/09/02 A country radio
station in Harrisburg, BOB 94.9, has provided some downloadable
songs of tribute on its web sit. I particularly recommend listening
to "Silent Night." (I have had trouble with this site on my version of
Netscape for some reason but Explorer worked fine.)
03/28/02 This tribute
from GodSpeaks.net is not new to the web but is new to this site.
04/16/02 Another tribute
04/16/02 This tribute
is an executable
file that was sent to me. I do not know the original source. To the
best of my knowledge, it is virus free. If you do not have an up to date
anti virus program you may not want to download this file.
09/19/01 Soundar Kumara,
Professor of Industrial and Manufacturing Engineering and his wife wrote
a poem that was
published in the Centre Daily Times on Saturday. It is a moving piece that
I thought should be recorded here.
09/18/01 Update: An email that has been circulating
since the events of September 11, 2001 is supposedly from a recent Canadian
editorial. However, if you are old enough to remember, it was originally
from the Viet Nam War era, June 5, 1973. Since many feel it is appropriate
at this time I have decided to link it to the WTC web page. The Original
Script is available and you can hear the original radio broadcast
of "The Americans" using RealAudio - (Listen
to the original audio)
09/20/01 A thoughtful
editorial from a longtime friend and structural engineering colleague,
the Void: What happens to the site
Roger Ebert of the Chicago Sun-Times has a proposal for the site that once
was occupied by the World Trade Center - "Make
09/19/01 To rebuild or not to rebuild, some
the Void: A Memorial by Paul Myoda and Julian La Verdiere. Like so
many looking for something that they could do to support the country, these
artists designed a memorial of light dedicated to the Twin Towers.
09/28/01 The Sept. 24 ENR issue has an excellent
article discussing the debate on the future
10/01/01 Another expression
of the Light Sculpture is featured in this New York Times article on looking
beyond the debris.
Updated with a rsponse from Yamasaki and Assoc.
10/30/01 Penny Maroldo of Oberlin, Ohio sent
an email with a suggestion for a memorial
based on the previous work of Minoru Yamasaki, architect of the WTC.
10/02/01 The San Francisco Chronicle has an
article on potential
materials for future skyscrapers.
10/04/01 Larry Silverstein has “brought
on board” prestigious architects David Childs of Skidmore, Owings &
Merrill and Alexander Cooper of Cooper Robertson Architects to help him
of the World Trade Center. An investor group led by Silverstein in
July signed a net lease on the 10 million square foot Trade Center for
$3.2 billion, from the Port Authority of New York and New Jersey.
the underground, including the transportation
and communication systems from Business Week. Also included is a table
what it will cost.
Has their era ended? by Neal Peirce, an article form the Washington
10/25/01 Skyscrapers Will Continue Standing
Tall, Architects Say ; Experts Say Terror Attacks Will Spur Design Changes
In New High- Rises; They'Re
An "American Tradition."
10/25/10 Competing Plans
Hope to Shape a Trade
Center Memorial from the NYT.
11/07/01 The November
3, 2001 NYT reports that the battle over who
will bear the costs of the destruction of the World Trade Center and
who will control the reconstruction of lower Manhattan — already
a full-blown brawl involving legions of lawyers and lobbyists — is continuing
Commemorative Beauty of Tragic Wreckage" discusses the controversy
over agency participation in the cleanup and the status of the wreckage
as a memorial.
11/19/01 At a symposium
on skyscrapers at the National Building Museum a panel of experts concluded
that skyscrapers are here to stay.
11/19/01 In an Op-Ed
article in the NY Post, a financial editor who works near the former WTC
site cautions that "an energized breed of urban planners and architectural
critics has descended upon the wreckage of the World Trade Center to force
upon us their visions of the future.
11/30/01 The economic
impact of September 11 on Lower
Manhattan is perhaps worse than even first expected according to the
11/30/01 The newly appointed
chairman of a commission charged with rebuilding Lower Manhattan said yesterday
that establishing a memorial
to the victims of the World Trade Center attacks would be among the
first priorities for the panel.
12/12/01 Larry Silverstein,
the real estate mogul who owns the 99-year lease on the World Trade Center,
appears to be backing away from his proposal
to build four 50-story office buildings at the site.
12/12/01 ENR report
on "Building for the
21st Century," a conference organized by the Council on Tall Buildings
and Urban Habitat.
01/09/02 NYC's new Mayor
vows to rebuild
vision for the site of the WTC may be different than that of his predecessor.
01/11/02 The Wall Street
Journal discusses some of the many proposals
for the site, including some pictures of the proposals.
01/16/02 The debate
is mounting on just what to do with the site.
acclaimed architect Tadao Ando has finished his proposal
for a monument to mark the spot where the World Trade Center buildings
01/16/02 NYTimes Op-Ed
column on what will become of the site.
01/16/02 It's a jagged
hole in the heart of lower Manhattan, a 16
acre moonscape that continues to trigger fury, grief and numbing disbelief
in those flocking to see it.
01/21/02 A Christian
Science Monitor article on the many
proposals for both economic revival and a memorial for ground zero.
01/21/02 A coalition
of organizations has formed New York
New Visions has presented their recommendations for rebuilding Lower
New World Trade Center: Design Proposals'' exhibition opened
at the Max Protetch Gallery in New York.
Record shows 21
proposals for the new WTC towers.
01/24/02 The Max Protetch
is further discussed in this Newsweek article with links to photos
of 8 proposals and a discussion of each.
03/16/02 The Museum
of Modern Art "Life
of the City," a three-part show of New York photographs.
01/24/02 New York Mayor
says city will
replace its "Command Center"
01/28/02 Pieces of the
destroyed World Trade Center complex are being set
aside for potential use as a memorial or for museum collections.
02/11/02 How big should
02/11/02 Art happens
every day, and responses to Sept. 11 are already growing more resolved
and complicated. Here's a survey
of public art and gallery shows inspired by the tragedy.
02/11/02 The ideal memorial
for the former World Trade Center site should be the tallest
spire in the world,
according to Robert F. Kennedy Jr.
imagine a future
for the Twin Towers site.
Issues Initial Recommendations for Rebuilding Lower Manhattan The
New York New Visions coalition of professionals representing 20 design
and planning organizations issued a preliminary report containing recommendations
for rebuilding lower Manhattan in New York City. The report was presented
to Governor George Pataki, Mayor Michael Bloomberg, the Lower Manhattan
Redevelopment Corporation, New York's Congressional delegation, city and
state agencies, and a wide array of civic, business, and community groups.
The coalition offers the draft report now, as decisions about infrastructure
begin to be made, recognizing that speed must be balanced by sensitivity
to the many constituencies and issues at hand. The working draft contains
maps and illustrations that give a visual presence to the broad discussions
already under way.
THE NEW YORK NEW VISIONS REPORT (PDF; 54 pages, 2.4 MB)
Larry A. Silverstein continues to plan for the rebuilding
at the WTC site.
Two proposals for temporary
memorials to the victims of the World Trade Center attack, one using
huge beams of light and the other a damaged bronze sculpture, are moving
closer to approval.
Larry A. Silverstein has a new
proposal for rebuilding his office tower at 7 World Trade Center later
this year that he hopes will finally address all the objections from local
residents and downtown officials.
Mayor Michael R. Bloomberg and Gov. George E. Pataki suggested an overall
plan for Lower Manhattan be completed before starting construction
on 7 World Trade Center.
The New York City Opera has begun discussions for a plan to create a major
arts complex to be part of the World Trade Center site.
installation of "Tribute
in Light," two luminous nighttime columns that are meant to recall
the World Trade Center's place in the Lower Manhattan skyline and to honor
those who died and served at ground zero, was approved by the Battery Park
in Light" is scheduled to be illuminated on March 11. This link includes
a digital photo of the expected result.
Two shafts of light rose into a periwinkle evening sky, two
towers of memory rendered ghostly across this city as reported
by Michael Powell of the Washington Post.
The "Tribute in Light" video
The man behind the technical
aspects of the "Tribute in Light."
"Tribute in Light" were to be turned
off on Sunday April 14.
A Power Point Presentation of the "Twin Beams of Light" showing many different
Wall Street Journal has a profile
on Larry Silverstein.
Tadao Ando proposes a "Hill
on the City" as a WTC memorial.
Sphere,'' the steel and bronze sculpture that was once a meeting point
for World Trade
will become a focal point again as a memorial for those killed in the twin
An adjunct professor of planning at Yale University has been hired by the
city's Lower Manhattan Development Corporation to think the big
thoughts about where downtown might go from here.
Op-Ed article on planning
for lower Manhattan.
Nothing will be built above ground for several years at the site of the
World Trade Center because of the extensive
underground construction that must be completed first.
Additional input into what should be built at ground zero sees lower
buildings that can be evacuated rapidly.
The Lower Manhattan Development Corporation made public a blueprint
a commercial and cultural makeover of downtown Manhattan.
of the Lower Manhattan Development Corporation report as coming from Rich
Firms with Poor Ideas.
and state officials are considering a proposal to ring
ground zero with a viewing wall that would let pedestrians stand at
the site's edge and look inside the boundaries of the former World Trade
An overhaul of the shattered
tangle of subway and commuter trains in Lower Manhattan could cost
more than $7 billion, four times the amount currently allocated for downtown
Urban development agency approved a plan yesterday to reconfigure
the city block that was the site of WTC 7 and to restore a segment
of Greenwich Street to the downtown street grid.
City and state officials are considering a proposal to ring ground zero
with a viewing
State and city officials said yesterday that they had speeded
the timetable for the rebuilding of the World Trade Center site after
recent criticism that the planning was moving too slowly.
The Lower Manhattan Development Corporation is planning a large
public hearing and discussion about their planning effort in late July,
with up to 5,000 participants.
New York will ask
Congress for more than the $21.3 billion it has already been promised
to help rebuild Lower Manhattan.
There has been noticeable
progress recently in plans to rebuild Lower Manhattan.
Cesar Pelli, the architect of Manhattan's World Financial Center -- and
of the world's tallest towers -- discusses
ground zero, the future of skyscrapers and how New York's skyline is
handsomer than ever.
for Ground Zero Begins to Take Shape
Begins at Ground Zero.
work at WTC 7 site begins with exploration
of foundation and some excavation.
Broadcast Tower proposed to help "filling
the hole in the sky and ache in hearts."
Another report on the
start of construction.
An extensive article on Rebuilding
Lower Manhattan, from the ground down.
WTC design envisioned as a
OpEd item - Lives
Lost and the Renewal of Downtown.
Architectural firm selected as urban
Another article on the selection of an architect
to lead the redevelopment of lower Manhattan.
A committee working on the rebuilding of lower Manhattan and the World
Trade Center has narrowed its search to two
architectural-engineering teams from six finalists.
An architect for the developer of 7
World Trade Center said he envisions the new building as a light-emanating
shaft" with a concrete core.
Critique of the plan says the Lower Manhattan Development Corp. and the
Port Authority of New York and New Jersey have all but guaranteed
Letter to the Editor, NYT says architect
selection is the right choice.
president of the agency charged with rebuilding the World Trade Center
site sees consensus emerging on what
will replace the twin towers.
AIA reports that the plan for the WTC site is moving
to a new phase.
World Trade Center memorial, families share prayers amid tremendous
is formed to work on rebuilding lower Manhattan.
An interesting look at NYC
history and what it might mean for the future of Ground Zero.
Low offices that could be expanded
in the future for Ground Zero?
The controversy continues. Blair Kamin, Chicago
Tribune architecture critic discusses the future of Ground Zero.
The WSJ discusses the size
of the WTC Memorial and its impact on retail space in Lower Manhattan.
Mayor Bloomburg calls for balance
the redevelopment of Ground Zero
may expand beyond the site.
Arts Organizer Said to be choice
to oversee 9/11 memorial effort.
Gov. George E. Pataki vowed at a memorial ceremony for Sept.11 victims
that there would be no
development on the land where the twin towers stood.
George E. Pataki's statement on Saturday, "We will never build where the
towers stood," came at a awkward
Another memorial proposal called the "Endurance
Eli Attia of Eli Attia Architects, Brooklyn Heights NY is calling
for a national design competition
for Ground Zero.
Silverstein would consider proposal to let
city own Trade Center site.
Trying to assess the winners and losers in any potential deal that would
city-owned land for the World Trade Center site is a difficult task.
Op-Ed article on effort
to push the Port Authority out.
Doubts Arise in Trade
Center Land Swap
competition to design a memorial is expected to begin early next year.
swap could be for land under two city-owned airports.
Government funds Ground
Zero Transit Hub.
Cameras to Record Ground
Zero Rising, a Frame at a Time.
Hugo Lindgren, story editor at The New York Times Magazine proposes a complete
of the site.
Mayor Bloomberg says he wants
the PANYNJ out of ground zero decisions.
Plans for transit
hub are altered.
Questions continue on the appropriate
direction a memorial shoudl take.
the World Trade Center stood, lightning
regularly struck its towers and was safely discharged to the ground.
Now, Lower Manhattan could be more vulnerable.
Rebuilding Wall Street - Newsletter
from Dow Jones
05/15/02 Dow Jones Newsletters
Rebuilding Wall Street
10/18/01 Rebuilding Wall Street, a
newsletter from Dow Jones includes a number of interesting articles
about the rebuilding that is already going on in Lower Manhattan. In particular,
they indicate that about 80% of the buildings are operational.
10/25/01 Rebuilding Wall Street, (*.pdf
) Oct. 24 issue reports that the opening of One Liberty Plaze is delayed.
11/30/01 Rebuilding Wall Street, (*.pdf)
Oct. 31 issue.
11/30/01 Rebuilding Wall Street, (*.pdf)
Nov. 7 issue includes an article indicating that Silverstein vows to rebuild
within 5 years.
11/30/01 Rebuilding Wall Street, (*.pdf)
Nov. 14 issue.
11/30/01 Rebuilding Wall Street, (*.pdf)
Nov. 21 issue contains an interesting article on building safety as well
as a wonderful photo of a new day dawning on Wall Street.
11/30/01 Rebuilding Wall Street, (*.pdf
Nov. 28 issue contains a number of interesting articles as well as a few
Dec. 5 issue.
Dec. 12 issue with a discussion of Silverstein hedging on his original
statement that he would rebuild four buildings on the WTC site. It also
includes additional information on his batle with his insurance carriers.
Dec. 19 issue. includes a fine skyline photo.
Jan. 9, 2002 issue. You need free tickets to view Ground Zero from the
city built viewing platform.
Jan 16,2002 issue. The Seven-Billion Dollar Question for the WTC Site.
Jan 23,2002 issue. Tishman gets the green light for rebuilding WTC 7.
Jan 30,2002 issue
Feb. 6,2002 issue
Feb. 13,2002 issue. Wall Street slowly getting back to normal and American
Express plans its return.
20,2002 issue. ConEd substation shoudl be rebuilt by summer. This publication
will begin publishing every other week.
March 6, 2002 issue. Major retailers reopen at Ground Zero.
March 20, 2002 issue. "Infrastructure Rebuild Moves On" plus a picture
of the tower of lights.
3, 2002 issue. Frenzy To Adopt Terrorism Laws Starts To Recede.
17, 2002 issue. Insurers add Terrorism Clause.
1, 2002 issue.
15, 2002 issue. This is the final edition.
10/05/01 The American Institute of Architects
reports that a number of firms have been receiving requests for building
plans that have raised some concern. They have issued a statement
and a form for reporting and tracking questionable requests.
10/08/01 The American Institute of Architects
has launched a Security
by Design Resource Center.
gathered in Chicago to brainstorm
ways to protect skyscrapers as reported in teh Chicago Tribune by Blair
Kamin, architectural critic, on October 15.
10/30/01 Imagining the future
of Manhattan from the Arts section of the NYT.
10/30/01 New interest in high-tech escapes
from high-rises from The Christian Science Monitor. Although this may
be an extreme approach, it does show the kinds of things people are thinking
12/05/01 The extent of the damage to the NYFD
is indicated by the number of new
Fire Trucks that have been ordered.
12/19/01 An engineer who worked on the construction
of the World Trade Center reminisces
about the work and his feelings now that they have been destroyed.
03/04/02 Structural engineers are undergoing
response training so that the city will have a team to assess building
damage in case of another catastrophe.
Heritage Preservation reports on the impact of September 11, 2001 on our
cultural heritage. (*.pdf)
General Political Information
Ed Keynes, Penn State Professor of Political Science, has provided the
following source (the CIA) of reliable basic
information on Afghanistan and all other countries. He indicates that
it is somewhat elementary but a good overview of the government, economy,
military, trans-national issues, etc.
10/08/01 An interesting statement
by Richard Kidd, Program Manager, Survey Action Center, Washington,
DC giving his perspective on the Afghanistan situation was sent to me by
a colleague. A bio of
09/27/01 MSNBC's "The
New Battlefield" web site has interactive maps that will help
identify the countries that are central to the war on terrorism as well
as other countries who will play a role in the war, starting with a world