3 ms·

These pillars?: https://www.google.com/maps/@42.9825563,-83.7311805,3a,90y,351.93h,103.67t/data=!3m6!1e1!3m4!1sHPOzGliaHWPkyza8aXvv4A!2e0!7i16384!8i8192 https:/

by p1mrx 4y ago

These pillars?: https://www.google.com/maps/@42.9825563,-83.7311805,3a,90y,351.93h,103.67t/data=!3m6!1e1!3m4!1sHPOzGliaHWPkyza8aXvv4A!2e0!7i16384!8i8192 https://www.google.com/maps/@42.9825563,-83.7311805,3a,90y,3...

paulmd 4y ago
Yup! That next bridge 100 feet farther north looks even worse too, lol. Don't think you're supposed to be able to see the deck like that. From what I remember, that set of bridges has had problems with chunks coming off and hitting people as they drive on the highway. A chunk of concrete at 70mph is absolutely lethal.
- wlesieutre 4y ago
  I was going to guess the opposite, you're supposed to be able to see the deck but they've stuck a layer under the bottom to keep debris from falling on the road
- encryptluks2 4y ago
  I wonder how much of the 2 trillion infrastructure bill will actually go to improving infrastructure
- Gordonjcp 4y ago
  Those look incredibly spindly and fragile, even if they were in good condition. I don't think I've ever seen a road bridge constructed as delicately as that here in Scotland. I guess you don't get wind, rain, or snow there.
  - paulmd 4y ago
    > I guess you don't get wind, rain, or snow there. Hahahah. It's michigan. We get some of the more intense winter weather in the states. That's actually part of the problem, it's an extremely variable climate, we get over 100F in the summer and under 0F in the winter. It results in a lot of road wear compared to more southerly states, due to the freeze-thaw cycle. The west side of the state is comparable to New York, tons of lake effect snow. No hurricanes here though.
    - Gordonjcp 4y ago
      I guess these ones at the Baillieston Interchange on the M8 just outside Glasgow are about as thick, but they're much shorter. Of course down south there at below 56°N the weather's a lot gentler and kinder. https://goo.gl/maps/MD6ErnBZ4mzDdkup9 https://goo.gl/maps/MD6ErnBZ4mzDdkup9 If you spin round to look west at the M73 flyover you'll see they're a kind of tapered oval section, but they're also forming a triangle with the road deck which makes the structure a lot stiffer. I was surprised to discover how much concrete bends when I was doing radio comms work on the Queensferry Crossing project a bit north of Edinburgh. The road deck was built as steel sections with concrete on top and lifted into place, one side then the other. With them "unbalanced", one side lifted on but the other not lifted yet, the top of the 600-foot concrete towers - the top had a working platform about the size of four parking spaces - bent over by about six feet...

by p1mrx 4y ago

paulmd 4y ago

Yup! That next bridge 100 feet farther north looks even worse too, lol. Don't think you're supposed to be able to see the deck like that. From what I remember, that set of bridges has had problems with chunks coming off and hitting people as they drive on the highway. A chunk of concrete at 70mph is absolutely lethal.

wlesieutre 4y ago
I was going to guess the opposite, you're supposed to be able to see the deck but they've stuck a layer under the bottom to keep debris from falling on the road
encryptluks2 4y ago
I wonder how much of the 2 trillion infrastructure bill will actually go to improving infrastructure
Gordonjcp 4y ago
Those look incredibly spindly and fragile, even if they were in good condition. I don't think I've ever seen a road bridge constructed as delicately as that here in Scotland. I guess you don't get wind, rain, or snow there.
- paulmd 4y ago
  > I guess you don't get wind, rain, or snow there. Hahahah. It's michigan. We get some of the more intense winter weather in the states. That's actually part of the problem, it's an extremely variable climate, we get over 100F in the summer and under 0F in the winter. It results in a lot of road wear compared to more southerly states, due to the freeze-thaw cycle. The west side of the state is comparable to New York, tons of lake effect snow. No hurricanes here though.
  - Gordonjcp 4y ago
    I guess these ones at the Baillieston Interchange on the M8 just outside Glasgow are about as thick, but they're much shorter. Of course down south there at below 56°N the weather's a lot gentler and kinder. https://goo.gl/maps/MD6ErnBZ4mzDdkup9 https://goo.gl/maps/MD6ErnBZ4mzDdkup9 If you spin round to look west at the M73 flyover you'll see they're a kind of tapered oval section, but they're also forming a triangle with the road deck which makes the structure a lot stiffer. I was surprised to discover how much concrete bends when I was doing radio comms work on the Queensferry Crossing project a bit north of Edinburgh. The road deck was built as steel sections with concrete on top and lifted into place, one side then the other. With them "unbalanced", one side lifted on but the other not lifted yet, the top of the 600-foot concrete towers - the top had a working platform about the size of four parking spaces - bent over by about six feet...