US skyscraper milestone: closing in on 100 towers over 800' tall

[DZH22]

Originally Posted by iheartthed

[*]Seattle - projected: 10 - actual: 0 - achieved: 0.0%

Seattle has 2 buildings over 800'.

[iheartthed]

Originally Posted by DZH22

Seattle has 2 buildings over 800'.

Fixed

Originally Posted by iheartthed

1. New York - projected: 48 - actual: 48 - achieved: 100.0%
2. Chicago - projected: 23 - actual: 21 - achieved: 93.0%
3. Austin - projected: 5 - actual: 2 - achieved: 36.6%
4. Miami - projected: 15 - actual: 5 - achieved: 34.1%
5. Oklahoma City - projected: 3 - actual: 1 - achieved: 29.3%
6. Philadelphia - projected: 15 - actual: 4 - achieved: 26.8%
7. San Francisco - projected: 11 - actual: 3 - achieved: 26.4%
8. Seattle - projected: 10 - actual: 0 - achieved: 21.0%
9. Atlanta - projected: 15 - actual: 3 - achieved: 20.6%
10. Cleveland - projected: 5 - actual: 1 - achieved: 19.1%
11. Houston - projected: 17 - actual: 3 - achieved: 17.6%
12. Pittsburgh - projected: 6 - actual: 1 - achieved: 17.0%
13. Charlotte - projected: 6 - actual: 1 - achieved: 15.7%
14. Dallas - projected: 18 - actual: 2 - achieved: 11.0%
15. Los Angeles - projected: 32 - actual: 3 - achieved: 9.5%
16. Washington - projected: 15 - actual: 0 - achieved: 0.0%
17. Boston - projected: 12 - actual: 0 - achieved: 0.0%
18. Phoenix - projected: 12 - actual: 0 - achieved: 0.0%
19. Detroit - projected: 10 - actual: 0 - achieved: 0.0%
20. Minneapolis - projected: 9 - actual: 0 - achieved: 0.0%
21. San Diego - projected: 8 - actual: 0 - achieved: 0.0%
22. Tampa - projected: 8 - actual: 0 - achieved: 0.0%
23. Denver - projected: 7 - actual: 0 - achieved: 0.0%
24. Baltimore - projected: 7 - actual: 0 - achieved: 0.0%
25. St. Louis - projected: 7 - actual: 0 - achieved: 0.0%
26. Orlando - projected: 6 - actual: 0 - achieved: 0.0%
27. San Antonio - projected: 6 - actual: 0 - achieved: 0.0%
28. Portland - projected: 6 - actual: 0 - achieved: 0.0%
29. Sacramento - projected: 6 - actual: 0 - achieved: 0.0%
30. Las Vegas - projected: 5 - actual: 0 - achieved: 0.0%
31. Cincinnati - projected: 5 - actual: 0 - achieved: 0.0%
32. Kansas City - projected: 5 - actual: 0 - achieved: 0.0%
33. Columbus, - projected: 5 - actual: 0 - achieved: 0.0%
34. Indianapolis - projected: 5 - actual: 0 - achieved: 0.0%
35. Nashville - projected: 5 - actual: 0 - achieved: 0.0%
36. San Jose - projected: 5 - actual: 0 - achieved: 0.0%
37. Virginia Beach - projected: 4 - actual: 0 - achieved: 0.0%
38. Providence, RI - projected: 4 - actual: 0 - achieved: 0.0%
39. Jacksonville, FL - projected: 4 - actual: 0 - achieved: 0.0% (!!!)
40. Milwaukee - projected: 4 - actual: 0 - achieved: 0.0%

[pj3000]

Originally Posted by Wigs

Interesting. Glad to hear yet another Pittsburgh building was innovative for its day
I'm a huge fan of Pittsburgh ,

Yeah, it's kinda cool that the 30'x10' exterior stressed steel plates are bolted directly to the steel frame of the building to serve as structural support. One Mellon Center was the first skyscraper to use this type of construction. Not sure how many other towers are wrapped in a steel skin like this.

Unfortunately, the coating that was applied to the exterior steel plates began to corrode, which necessitated a huge pressure washing and painting project back in 2010.

[wpipkins2]

Originally Posted by pj3000

Yeah, it's kinda cool that the 30'x10' exterior stressed steel plates are bolted directly to the steel frame of the building to serve as structural support. One Mellon Center was the first skyscraper to use this type of construction. Not sure how many other towers are wrapped in a steel skin like this.

Unfortunately, the coating that was applied to the exterior steel plates began to corrode, which necessitated a huge pressure washing and painting project back in 2010.

I worked on the 16th floor during the pressure washing and painting. The paint was rolled on. It looked at a rusted out car for months but the new PPG Paint has a satiny glow to it.

[Steely Dan]

anyway, going back to America breaking the 100 800+ footer threshold, I thought it'd be interesting to go back in time and look at when we broke other noteworthy 100 tower thresholds.


100 400+ footers: 1931

100 500+ footers: 1966

100 600+ footers: 1982

100 700+ footers: 2006

100 800+ footers: 2024


we currently have 54 900+ footers, so there's probably still a good bit of time before we pass the next big benchmark.

[wpipkins2]

Originally Posted by Steely Dan

anyway, going back to America breaking the 100 800+ footer threshold, I thought it'd be interesting to go back in time and look at when we broke other noteworthy 100 tower thresholds.


100 400+ footers: 1931

100 500+ footers: 1966

100 600+ footers: 1982

100 700+ footers: 2006

100 800+ footers: 2024


we currently have 54 900+ footers, so there's probably still a good bit of time before we pass the next big benchmark.

Pittsburgh contributed to all 5 milestones.

[Steely Dan]

Originally Posted by wpipkins2

Pittsburgh contributed to all 5 milestones.

Yep.

Ditto for:

New York
Chicago
Cleveland
Dallas
Houston

[pj3000]

Originally Posted by Steely Dan

Yep.

Ditto for:

New York
Chicago
Cleveland
Dallas
Houston

LA and San Francisco too maybe?

And I imagine Philadelphia got shut out by the 600 footer criteria in 1982... darn Billy Penn.

[Steely Dan]

Originally Posted by pj3000

LA and San Francisco too maybe?

They missed the 500 footers in 1966.

[pj3000]

Originally Posted by Steely Dan

They missed the 500 footers in 1966.

I'm thinking that they probably had 500+ footers u/c by then, but maybe not completed.

[Steely Dan]

Originally Posted by pj3000

I'm thinking that they probably had 500+ footers u/c by then, but maybe not completed.

They might've, but the US still got to 100 completed 500+ footers before California got any.

But it does bring up the issue of me including U/C towers for the 800+ footer threshold. So for consistency's sake, I should move the year up to 2027, when the last of the currently U/C 800+ footers is scheduled to finish up.

Revised:

100 US 400+ footers: 1931

100 US 500+ footers: 1966

100 US 600+ footers: 1982

100 US 700+ footers: 2006

100 US 800+ footers: 2027

[pj3000]

Originally Posted by Steely Dan

They might've, but the US still got to 100 completed 500+ footers before California got any.

But it does bring up the point of me including U/C towers for the 800+ footer threshold. So for consistency's sake, I should move the year up to 2027, when the last of the U/C 800+ footers is scheduled to finish up.

Revised:

100 400+ footers: 1931

100 500+ footers: 1966

100 600+ footers: 1982

100 700+ footers: 2006

100 800+ footers: 2027

Ah, gotcha. Interesting to think that there were already 100 existing 500+ footers around the country when CA got its first.

[Klippenstein]

Interesting to think that if trends continue, we could have 46 more 900+ footers in 20-30 years. An average of 1.5-2 per year. Though I'm a bit skeptical the trend will continue, it could happen.

[MolsonExport]

Whereas most of the 800+ in past years were office towers, today and tomorrow (at least for the next decade) most will be residential towers.

[Steely Dan]

Originally Posted by MolsonExport

Whereas most of the 800+ in past years were office towers, today and tomorrow (at least for the next decade) most will be residential towers.

Chicago fits that mold.


Chicago built 9 800+ footers in the 20th century:
- 6 - pure office towers
- 2 - mixed use office/residential
- 0 - pure residential
- 1 - mixed use residential/hotel


Chicago has built 12 800+ footers in the 21st century:
- 2 - pure office towers
- 0 - mixed use office/residential
- 6 - pure residential
- 4 - mixed use residential/hotel


The office/residential mixed use tower model has largely been abandoned here it seems.