The Cellar / I-95 Bridge (Bruce sent a link)

**Posted by griff** 6/17/2023 4:56 pm

https://pacast.com/live/I95
Live feed of the bridge repair, wild stuff.

https://6abc.com/i-95-collapse-philadelphia-collapsed-philly-interstate-95/13385819/"Considering the technology, it's not unreasonable to get it basically done with this project in three weeks," said Dr. Mehdi Khanzadeh Moradlo, an assistant professor of engineering at Temple University.The first trucks left Aero Aggregates in Eddystone, Delaware County to Philadelphia around 7:30 a.m. Thursday with a Pennsylvania State Police escort

**Posted by Diaphone Jim** 6/17/2023 5:31 pm

Just gonna fill in the underpass with foam expanded recycled glass.
With extra loads of Do Not Cross tape being deployed, the surrounding neighborhoods are economically toast.
I must have travelled that route a few times about 60 years ago.
After the WTC collapses, how can anyone, especially engineers, be surprised that steel melts and burns?

**Posted by griff** 6/18/2023 11:27 am

Those neighborhoods are suffering from detours already, getting this fixed rapidly will improve quality of life.

**Posted by Diaphone Jim** 6/19/2023 12:26 pm

Two weeks!

**Posted by tw** 6/19/2023 8:28 pm

Diaphone Jim wrote:
After the WTC collapses, how can anyone, especially engineers, be surprised that steel melts and burns?

Steel did not melt and burn. Steel quickly loses all strength when it gets mildly hot - well below melting temperatures.

Buildings encase steel in concrete. Not for structural purposed, To protect steel from heat - a fire.

Last edited by tw (6/19/2023 8:29 pm)

**Posted by xoxoxoBruce** 6/24/2023 8:55 pm

It's open again. I was surprised the aerial shots of the traffic I expected them to drop the speed limit down through the temporary fix, but all six lanes are zipping through there like it never happened.

Atlanta – I-85 bridge collapsed in a fire – 43 days
Oakland – collapsed ramps -26 days
Washington I-5 bridge – 27 days
Philly I-95 bridge collapse from fire – 12 days.

I read by the time the permanent (ha, no such thing with infrastructure) fix is done, $30 million.
Oh well, better to pay for the fix than be the guy that started the fire.