Bus video gives more info about Pittsburgh bridge collapse

May 5, 2022, 12:38 PM | Updated: May 6, 2022, 3:27 pm
The National Transportation Safety Board (NTSB) says this image is from the forward-facing camera o...

The National Transportation Safety Board (NTSB) says this image is from the forward-facing camera on the bus that was involved in the collapse of the Fern Hollow Bridge in Pittsburgh and shows the bridge deck separating at the east expansion joint (the red oval highlights the expansion joint). The image is from video provided by NTSB in a report issued, Thursday, May 5, 2022, pertaining to the Jan. 28 2022, collapse of the bridge. (National Transportation Safety Board via AP)

(National Transportation Safety Board via AP)

HARRISBURG, Pa. (AP) — Video footage from a bus of the bridge collapse in Pittsburgh this year shows one end of the structure had already fallen when an expansion joint at the other end was pulling apart, federal investigators said Thursday.

The National Transportation Safety Board issued an update on the Fern Hollow bridge collapse, saying the video is giving them more information about the sequence of events.

So far there’s no evidence of “widespread deficiencies” in the “rigid K-frame superstructure types” that form the bridge’s basic structure, the report said.

The investigative update said that all aspects of the disaster are still being looked at and that the cause has yet to be determined. Investigators plan mechanical and chemical testing on material samples and will examine plate dimensions and weld quality.

A preliminary report issued less than two weeks after the Jan. 28 collapse had found the collapse began at the structure’s west end and noted there had been no primary fractures in sections of welded steel girders considered “fracture critical.” A fracture critical area in a beam is the part most likely to show damage if the bridge has suddenly given way.

When the Forbes Avenue bridge gave way, it sent a city bus and four passenger cars down some 100 feet (30 meters) to a ravine carved by Fern Hollow Creek. Another vehicle drove off the east bridge abutment and landed on its roof.

Although the preliminary report had said a total of 10 vehicle occupants had been injured, the agency has now concluded that there were nine people in six vehicles. Two were injured seriously, two had minor injuries, four were not hurt, and the injury status of one person is uncertain, the agency said Thursday. No one was killed.

Natural gas lines ruptured and required the evacuation of nearby homes.

The 447-foot-long (136-meter) bridge, about 50 years old, showed some deterioration during an inspection in September, but not enough to require its closure. The bridge has had a 26-ton (24,000 kilogram) weight limit since 2014.

The future of the bridge is the topic of a virtual meeting Thursday night in which city officials and neighbors are expected to participate.

The Pennsylvania Department of Transportation has said up to $25.3 million in National Highway Performance Program funds is being used to rebuild the structure. The contractor began gearing up for construction last month, and early foundation work is about to begin, PennDOT spokesperson Alexis Campbell said Thursday.

The state agency has posted images of the replacement bridge’s “overall design concept.”

Copyright © The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

AP

FILE - WNBA star and two-time Olympic gold medalist Brittney Griner is escorted to a courtroom for ...
Associated Press

Trial for US basketball star begins in Moscow-area court

MOSCOW (AP) — U.S. basketball star Brittney Griner is set to go on trial in a Moscow-area court Friday, about 4 1/2 months after she was arrested on cannabis possession charges at an airport while traveling to play for a Russian team. The Phoenix Mercury center and two-time U.S. Olympic gold medalist could face up […]
1 day ago
Russian President Vladimir Putin attends a joint news conference with Indonesian President Joko Wid...
Associated Press

Putin’s week: Facing NATO expansion, West’s unity on Ukraine

It has not been an easy week for Russian President Vladimir Putin. He took his first foreign trip since the invasion of Ukraine to shore up relations with troublesome Central Asian allies. He watched as NATO declared Moscow its main enemy and invited Russia’s neighbors Sweden and Finland to join the alliance. And he was […]
1 day ago
FILE - Reveler carry a LTBGQ flag along Fifth Avenue during the New York City Pride Parade on Sunda...
Associated Press

Same-sex couples updating legal status after abortion ruling

BIRMINGHAM, Ala. (AP) — Emails and phone calls from same-sex couples, worried about the legal status of their marriages and keeping their children, flooded attorney Sydney Duncan’s office within hours of the Supreme Court’s decision eliminating the constitutional right to abortion. The ruling last week didn’t directly affect the 2015 decision that paved the way […]
1 day ago
FILE - Reveler carry a LTBGQ flag along Fifth Avenue during the New York City Pride Parade on Sunda...
Associated Press

Same-sex couples updating legal status after abortion ruling

BIRMINGHAM, Ala. (AP) — Emails and phone calls from same-sex couples, worried about the legal status of their marriages and keeping their children, flooded attorney Sydney Duncan’s office within hours of the Supreme Court’s decision eliminating the constitutional right to abortion. The ruling last week didn’t directly affect the 2015 decision that paved the way […]
1 day ago
Associated Press

Several police officers wounded in eastern Kentucky shooting

ALLEN, Ky. (AP) — Several police officers were shot and wounded while trying to serve a warrant in eastern Kentucky on Thursday, authorities said. A suspect was taken into custody and at least one person was killed, Floyd County Sheriff John Hunt told WYMT-TV. The sheriff’s department described the shooting as “deadly” in a Facebook […]
1 day ago
China's President Xi Jinping, right, looks on as Hong Kong's incoming Chief Executive John Lee is s...
Associated Press

Xi defends vision of Hong Kong as 25-year anniversary marked

HONG KONG (AP) — Chinese President Xi Jinping on Friday defended his vision of the “one country, two systems” framework against accusations by the U.S., U.K. and others that Beijing has undermined the freedoms and autonomy promised to Hong Kong for 50 years. In a speech marking 25 years since the city became a semi-autonomous […]
1 day ago

Sponsored Articles

...
Carla Berg, MHS, Deputy Director, Public Health Services, Arizona Department of Health Services

Vaccines are safe if you are pregnant or breastfeeding

Are you pregnant? Do you have a friend or loved one who’s expecting?
...
CANVAS ANNUITY

Best retirement savings rates hit 4.30%

Maximize your retirement savings with guaranteed fixed rates up to 4.30%. Did you know there is a financial product that can give you great interest rates as you build your retirement savings and provide you with a paycheck for life once you retire? It might sound too good to be true but it is not; this product is called an annuity.
...
Christina O’Haver

BE FAST to spot a stroke

Every 40 seconds—that’s how often someone has a stroke in the United States. It’s the fifth leading cause of death among Americans, with someone dying of a stroke every 3.5 minutes.
Bus video gives more info about Pittsburgh bridge collapse