Sunday, June 25, 2023

MRL/NP Twin Bridge over Yellowstone River Collapsed

(Satellite)

Jun 24, 2023, 6:45am local time. No one was injured.

Dat Boi, Jun 2023

"Three cars with hot asphalt and four cars with molten sulfur fell into the river....Two cars were carrying sodium hydro sulfate, but neither had entered the water or been breached." [nytimes]

There is no expected hazmat impact because both the molten sulfur and hot asphalt solidify rapidly when they cool off. "Montana Rail Link said that two cars which contained sodium hydrogen sulfate, an acid salt, did not enter the water, and that initial air and water tests did not find any evidence that they had leaked." [cbsnews]

The yellow on the water surface was probably a molten sulfur leak.
1:31 video @ 0:23 in abcnews

This  view is rather redundant with Dat Boi's view above, but I include it to confirm that the near pier is tilted. Did the wreck cause the activation of the emergency braking system and the resulting longitudinal forces shoved the top of the pier sideways? Or did the high water cause the pier to tilt, and that is the cause of the accident? Below, I note that the piers are rather new. So, I hope the train braking is what moved the pier.
abcnews, Montana Fish, Wildlife & Parks - Region 5

All of the older photos I have seen show the river was drier than it was in Jun 2023.
The road bridge was removed in 2021 after erosion made it a risk to the public. [abc7chicago] At first, I didn't think I had the correct bridge because none of the accident photos included the road bridge.
Street View, Jul 2013

This Aug 2022 photo shows that new piers have been installed since the above 2013 view.
Lourdes Rivero, Aug 2022

The bridge carried a major fiber-optic cable through Montana. So high-speed internet was impacted for many of the customers of Global Net. [abc7chicago]


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