Welp 36 is down and out

https://www.denverpost.com/2019/07/1...tch-collapses/

Well, I want to laugh or make jokes, but what an unfortunate mess! Didn't they use engineered soil? Did the clay just slip out between the layers? Hope that private, non-US, company that owns that road (Plenary Group) is warming up their check books and getting all hands on deck.

On another note, is that really the best/only picture the Denver Post could come up with?

Local news showed that, bummer for folks that have to go around that to get to work this week. Might be fixed by Wednesday the bit said.

I'm not going to try to drive it any time soon. Driving to Broomfield is bad enough as it is.

Taking I-25 and then Highway 7 into Boulder isn't terrible....when 36 is available.

I stand by my previous statement.

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Originally Posted by izzy

I stand by my previous statement.

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Going across the city sucks no matter what. I would rather drive to Fort Collins for work than the Tech Center, and it's twice the distance!

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Originally Posted by Irving

Going across the city sucks no matter what. I would rather drive to Fort Collins for work than the Tech Center, and it's twice the distance!

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I did S. Littleton to ft fun for 2 years, 5 days a week, then back home. Doesn't matter where you have to drive the state is never going to widen the roads, or get mass transit up before the next tsunami over takes it.

Quote:

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Originally Posted by Irving

Well, I want to laugh or make jokes, but what an unfortunate mess! Didn't they use engineered soil? Did the clay just slip out between the layers? Hope that private, non-US, company that owns that road (Plenary Group) is warming up their check books and getting all hands on deck.

On another note, is that really the best/only picture the Denver Post could come up with?

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I'm sure it was undercompacted soil built hastily. This was built at a time CDOT was making a change to address this issue. It may have been built with the older requirement. I am sure the soils engineers in my office have been busy all weekend.

At 1sr when I heard cracked concrete, I thought the heat and moisture caused the concrete to thermally expand and buckle.

Similar but smaller soil failure have occurred at I25 & I225 tunnel and on I25 between Colorado and University. COSMIX in Colorado Springs is another example of failed soil.

All these projects were build under Design-Build contracts in haste. CDOT has little control and say in QA. QA failures can still be accepted through "value engineering" buy the designer, who is also the builder. Ultimate Jerry rigging boondoggle. Cant wait to see what C470 and I70 bring after completion.

But I thought some here sabotaged the road to keep crazy in boulder.