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11 towers on (Kinzua) Viaduct collapse(wind, old closed bridge, no injuries, photos)
Bradford Era ^ | 7/22/03 | MARCIE SCHELLHAMMER and MIKE SCHREIBER

Posted on 07/22/2003 8:41:07 AM PDT by Diddle E. Squat

After standing tall across the Kinzua Gorge for more than a century, 11 towers on the Kinzua Viaduct went crashing into the valley below around 3:15 p.m. Monday.

"It appears as though a high gust of wind or a tornado has hit," said Steven Brode of W.M. Brode Construction Co., the contractors hired by the state Department of Conservation and Natural Resources to renovate the structurally-deteriorating viaduct.

"The bridge has sustained some damage," said Donald Main, assistant director of the Bureau of State Parks, early Monday afternoon. He added that crews were headed to the scene to evaluate the damage, and no further details were available.

Eugene Comoss, chief engineer with the DCNR, said late Monday evening that preliminary reports from engineers on the scene indicate that six towers remain standing on the side of the park toward the entrance, while three still stand on the other side.

"What a disaster," he said. "Where the concrete pedestals are -- it snapped right there at the bottom. It went right over at the concrete piers."

He said crews will begin cleaning up today, and he will be at the site Wednesday morning to start the assessment of the damage.

Gene Strecht, regional engineer for facilities, design and construction for DCNR, said about 50 percent of the bridge is down. "It probably went down like dominos," he said.

While none of the workmen on the contractor's crew were injured in the collapse, one park employee did not fare as well. Earl Kilmer, local expert on the statistics of the viaduct and it's history, took refuge from the storm in a maintenance building at the Kinzua Bridge State Park.

A tree fell on the building, and Kilmer suffered a broken leg. Reports indicated that emergency crews experienced difficulties reaching Kilmer because of trees down in the area. Workers had to cut trees away to free Kilmer from the wreckage. No information as to his condition was available Monday night.

"The crews are safe," Brode said, explaining work was stopped Monday morning because of the rain and high winds. "We evacuated the site," he said, adding that fallen trees and downed power lines made the area unsafe for the workers. "And the winds are still blowing."

"It's a disaster area," said Barrett Clark, park manager. "I'm sick about it. It was a historical structure -- one of a kind. Luckily nobody was injured."

Workers have been at the viaduct since January, mapping out structural damage caused by age and wear. Brode's crews began work in February to return the structure to a useable condition.

In June of 2002, the DCNR closed the viaduct to the Knox & Kinzua excursion train. In August of 2002, the DCNR banned pedestrians from the walkways as well. Following preliminary DCNR inspections which showed areas of 100 percent loss to rust, engineers determined that a strong-enough gust of wind could create enough lateral pressure to topple the 6,715,000-pound viaduct.

"When the wind strikes the bridge it shifts the center of gravity, which in turn increases the weight on one side of the structure and reduces it on the other," explained Clark last year.

Dr. August Freda, engineer of metallurgy and former instructor at the University of Pittsburgh at Bradford, said the wind could very likely have been the cause of the collapse.

He also opined that work on both ends of the structure may have caused additional pressure on the center of the structure. "Without being there, it's hard to tell," Freda said.

Completed in 1882, the viaduct was once capable of holding the 511-ton Big Boy, the biggest steam engine in the world. The viaduct, at 301 feet high and 2,053 feet long, is the forth largest in the nation.

The original structure took four months to build.


TOPICS: Culture/Society; Extended News; News/Current Events; US: Pennsylvania
KEYWORDS: bridgecollapse; engineering; historic; kinzua; viaduct; wind
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Apparently the Park Service knew the structure was in bad shape, since they had closed it to the tourist train and then pedestrians. However even last weekend pedestrians were allowed to walk 1/3rd of the way onto the bridge, according to a poster on another forum who was there on Saturday.

1 posted on 07/22/2003 8:41:07 AM PDT by Diddle E. Squat
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To: Diddle E. Squat
Uh oh, looks like some are already going to try and get the taxpayers to rebuild it. Its only use was(would be) as a historical tourist attraction.

http://www.bradfordera.com/news2.html

Devlin: 'I'm just shocked'

By MARCIE SCHELLHAMMER / Era Reporter
A part of the Kinzua Viaduct has been destroyed, and preliminary reports indicate it cannot be simply returned to its previous splendor.

In the hours shortly after the collapse, engineers with the state Department of Conservation and Natural Resources had voiced hopes that the towers would be in good enough shape that they could be stood back up to their place in history. However, photos show it would not be possible.

"After everything that's been done and all the money that's been spent," said Linda Devlin of the Allegheny National Forest Vacation Bureau. "We were starting to see a light at the end of the tunnel.

"Oh my God."

Devlin has been one of the forerunners in a local grassroots effort to save the Kinzua Viaduct from the ravages of time -- an effort that may be in vain after Monday's storms.

Shortly after 3 p.m. Monday afternoon, 11 of the 20 towers of the viaduct collapsed into the gorge below.

"I just hope it's something that can be fixed," Devlin said. "I'm just shocked. I'm just sick. What can you do?"

State Rep. Martin Causer, R-Turtlepoint, echoed Devlin's dismay at the news.

"That's so crucial to our tourism," he said. "We've been pushing hard for (the rehabilitation). That's terrible."

Causer said he was going to the site this morning, "I have to see for myself. I have to go see it."

Former State Rep. Ken Jadlowiec took time away from sandbagging the area behind his own home to speak to The Era.

"I think it's sad because so many people visit the area to see it," he said. "It's just another setback we didn't need.

"It could be a terrible loss to this area," he said.

"Oh no," said Debbie Lunden of the McKean County Planning Commission. "I'm in shock. I never thought about it. The weather was just so bad. I never considered ...

"This is definitely a disaster," she added. "What about our documentary? I guess it will be the history of the bridge now."

The documentary to which she referred is a half-hour documentary already in the works to document the bridge and its rehabilitation, as well as the stories behind it.

Devlin and engineer Dr. August Freda visited The Era Monday night to view exclusive aerial photos obtained by Era Chief Photographer Francie Long and pilot Ray Lewis.

"It's just a twisted mess," Freda said. "You won't bring that back up.

"It looks like it just sheered right off," he said.

"It stood through everything," Devlin said emotionally. She said the most frustrating part of the whole thing is the repair work was moving forward at a good pace.

"After how many years of talking about it, it's finally happening," she said. "It was being repaired. We were at the point where we were going uphill."

As far as the aftermath of the collapse, Causer said he'll be pushing for any assistance available from the state and from federal sources.

"We'll have to survey the damage and go from here," he said. Eugene Comoss, chief engineer for the DCNR, added that the Pennsylvania Emergency Management Agency has been in contact with the DCNR regarding the collapse, but had no other information.

The ANF Vacation Bureau, along with the Planning Commission, has been part of an on-line effort to gain public support for the viaduct. People from across the nation and throughout the world have sent responses telling of what the viaduct means to them.

Late Monday night, Devlin sent along one of the responses she had just received.

"That is a annual trip for our family, and our guests. Please save the bridge," wrote Judy Hagerman of Westmoreland County.

2 posted on 07/22/2003 8:43:13 AM PDT by Diddle E. Squat
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To: Diddle E. Squat

3 posted on 07/22/2003 8:47:30 AM PDT by Diddle E. Squat
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To: Diddle E. Squat
could someone please post a before and after picture. I tried the links did not see any.
4 posted on 07/22/2003 8:48:44 AM PDT by Jack Black
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To: Jack Black
The History of Kinzua Viaduct

First bridge:

1900 reconstruction in progress:

Finished replacement bridge(the one that collapsed):


5 posted on 07/22/2003 8:54:11 AM PDT by Diddle E. Squat
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To: Diddle E. Squat
"It appears as though a high gust of wind or a tornado has hit,"

The last picture of the three appears to show a tornado path of downed trees leading toward the bridge from the right.

6 posted on 07/22/2003 8:54:48 AM PDT by Hatteras (The Thundering Herd Of Turtles ROCK!)
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To: Willie Green
You may find this of interest.
7 posted on 07/22/2003 9:01:24 AM PDT by Diddle E. Squat
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To: Hatteras
I concur: it looks like a flood whipped through there from the right, and all the towers fell to the left.
8 posted on 07/22/2003 9:04:39 AM PDT by SpinyNorman
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To: Diddle E. Squat
..."That is a annual trip for our family, and our guests. Please save the bridge," wrote Judy Hagerman of Westmoreland County.

The Knox Railroad offers a train ride over the bridge and through the area. Very beautiful in autumn. Hopefully it can be rebuilt.

9 posted on 07/22/2003 9:15:33 AM PDT by fortunecookie (longtime lurker and new poster)
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To: fortunecookie
...Knox Railroad offers a train ride ...

Oops, my bad, that should be - Knox Railroad until recently offered a train ride...

10 posted on 07/22/2003 9:17:56 AM PDT by fortunecookie (longtime lurker and new poster)
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To: Hatteras
If a storm was in the area, I suspect a strong microburst, looking at the photos, you don't see the typical spiral track that tornados leave. I would say a gust of wind took it out. the latice work on the towers acted like a sail and increased the "stress" on the week areas. The crew already suspected this may happen, so it isn't a suprise.

In June of 2002, the DCNR closed the viaduct to the Knox & Kinzua excursion train. In August of 2002, the DCNR banned pedestrians from the walkways as well. Following preliminary DCNR inspections which showed areas of 100 percent loss to rust, engineers determined that a strong-enough gust of wind could create enough lateral pressure to topple the 6,715,000-pound viaduct....

11 posted on 07/22/2003 9:22:47 AM PDT by Zavien Doombringer (Ain't nothing worse than feeling obsolete....)
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To: Diddle E. Squat
What a shame. It looks like an incredible piece of engineering from a bygone era.
12 posted on 07/22/2003 9:23:44 AM PDT by Riley
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To: Hatteras
The last picture of the three appears to show ...
It's a little difficult to tell which direction those trees lie, but, upon close inspection it does appear that a number of trees have their tops 'broken off' (white wood appears to be showing as does an unusual leaf color as compared to other tree vegatation in the area) in the lower 3/8 of pix #3 posted by Diddle E. Squat either side of the fallen railroad bridge ...
13 posted on 07/22/2003 9:45:36 AM PDT by _Jim (First INDICT the ham sandwhich ... the next step is to CONVICT it ...)
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To: Diddle E. Squat
Never heard of this bridge before, and I have no idea where it is....

When posting (local) news, one should tell people where its from.

Could be Kinzua New Zealand for all I know.
14 posted on 07/22/2003 9:46:51 AM PDT by AnalogReigns
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To: Diddle E. Squat
Looking at the pictures from Post #5, was there anything left of the original bridge after the 1990's reconstruction? It looks like the towers, the deck and the bracing are all new in 1990. You can see how the structure of the reconstructed bridge is much larger than the original, while it is the extremely slender, spindly construction of the original that gives it beauty.
15 posted on 07/22/2003 9:51:47 AM PDT by gridlock (Remember, PC Kills.)
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To: AnalogReigns
The Kinzua Bridge is in McKean County, Pennsylvania, about fifteen miles south southeast of Bradford, PA, and about 40 miles from this here Freeper. It will be sorely missed.
16 posted on 07/22/2003 9:52:19 AM PDT by Petronski (I'm not always cranky.)
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To: AnalogReigns
Far north Pennsylvania.

Buried in the first article: ...at the University of Pittsburgh at Bradford...

In the second article:...added that the Pennsylvania Emergency Management Agency has been in contact with the DCNR regarding the collapse...

First sentence in the link in post #5: In the 1800's the abundant natural resources of north central Pennsylvania attracted many men seeking challenge and fortune.

17 posted on 07/22/2003 9:53:09 AM PDT by Diddle E. Squat
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To: gridlock
Actually the reconstruction was in 1900. See the link in post#5, it may better answer your question. It appears to have been completely replaced(at least the supports), but I don't know about the decking.
18 posted on 07/22/2003 9:56:50 AM PDT by Diddle E. Squat
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PING FOR LATER
19 posted on 07/22/2003 9:57:01 AM PDT by Prof Engineer (I won't FReep at work, I won't FReep at work, I won't FReep at work, I won't FReep at work)
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To: gridlock
Looking at the pictures from Post #5, was there anything left of the original bridge after the 1990's reconstruction? It looks like the towers, the deck and the bracing are all new in 1990.

That was 1900's not 1990s. Sounds like they just let it rust to death. If it was the Park Service that was responsible for, why I am not surprised?

20 posted on 07/22/2003 9:57:41 AM PDT by El Gato
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