A crash reconstructionist on Saturday used a drone to map the scene and investigators made an initial inspection of the structure and the legs under the deck of the bridge.
park "under a microscope" as they examine evidence, including video from a municipal bus that plummeted along the span, prompting rescuers to rappel down a ravine and form a human chain to reach a few occupants.predawn collapse in Frick Park
A crash reconstructionist on Saturday used a drone to map the scene and investigators made an initial inspection of the structure and the legs under the deck of the bridge, looking for signs of corrosion and fatigue cracking and also wanting to see how the structure came to rest. Investigators were also trying to identify areas for closer inspection and may want to take pieces back for laboratory analysis, she said.
Investigators would look at inspection frequency and quality, federal and state procedures, and also at loads on the bridge and how those loads have changed over the half-century life of the span. In addition, the impact of weather and road treatments would be examined.Pittsburgh's mayor and fire chief were among those who spoke to reporters on Jan. 28, 2022, to provide an update on a bridge collapse near the city's Frick Park.
Homendy, however, also cautioned people to stay away from the park, which remains closed, citing the danger from the structure as well as from vehicles at the scene.
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