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National Boards => General Highway Talk => Topic started by: J N Winkler on May 12, 2016, 02:06:33 PM

Title: Pergolas
Post by: J N Winkler on May 12, 2016, 02:06:33 PM
Are there other examples of pergolas in North America besides the ones built into the I-5/SR 2 (Golden State Freeway/Glendale Freeway) interchange in Los Angeles?

SR 2 southbound to I-5 southbound transition (https://www.google.com/maps/place/Glendale,+CA/@34.1013126,-118.2493483,3a,75y,345.89h,85.44t/data=!3m7!1e1!3m5!1sBJZogz1Xi9sZ_Ynwd-KAUQ!2e0!6s%2F%2Fgeo1.ggpht.com%2Fcbk%3Fpanoid%3DBJZogz1Xi9sZ_Ynwd-KAUQ%26output%3Dthumbnail%26cb_client%3Dmaps_sv.tactile.gps%26thumb%3D2%26w%3D203%26h%3D100%26yaw%3D90.353027%26pitch%3D0!7i13312!8i6656!4m5!3m4!1s0x80c2c032c8f083a9:0xe53fa19efec926a6!8m2!3d34.1425078!4d-118.255075!6m1!1e1)

This example surfaced earlier today on the Freeways in Los Angeles Facebook group and it is the first American example of a pergola I can remember ever seeing, although this form of construction is used quite extensively in Spain, with many, many examples across multiple regions:

AP-7/C-58 interchange near Barcelona (https://www.google.com/maps/place/Barcelona,+Spain/@41.5046142,2.1240349,3a,75y,68.98h,90t/data=!3m7!1e1!3m5!1sXm4dxoDBRILE6QIizn8a1g!2e0!6s%2F%2Fgeo2.ggpht.com%2Fcbk%3Fpanoid%3DXm4dxoDBRILE6QIizn8a1g%26output%3Dthumbnail%26cb_client%3Dmaps_sv.tactile.gps%26thumb%3D2%26w%3D203%26h%3D100%26yaw%3D62.831436%26pitch%3D0!7i13312!8i6656!4m5!3m4!1s0x12a49816718e30e5:0x44b0fb3d4f47660a!8m2!3d41.3850639!4d2.1734035!6m1!1e1)

A-7/A-44 interchange near Motril (https://www.google.com/maps/place/Barcelona,+Spain/@36.7865963,-3.5110348,3a,75y,259.4h,90t/data=!3m7!1e1!3m5!1sFl-zcKFB54_lH1sf2joDWQ!2e0!6s%2F%2Fgeo1.ggpht.com%2Fcbk%3Fpanoid%3DFl-zcKFB54_lH1sf2joDWQ%26output%3Dthumbnail%26cb_client%3Dmaps_sv.tactile.gps%26thumb%3D2%26w%3D203%26h%3D100%26yaw%3D256.84253%26pitch%3D0!7i13312!8i6656!4m5!3m4!1s0x12a49816718e30e5:0x44b0fb3d4f47660a!8m2!3d41.3850639!4d2.1734035!6m1!1e1)

BU-30 over railway northeast of Burgos (https://www.google.com/maps/place/Barcelona,+Spain/@42.3746161,-3.6513255,3a,75y,127.51h,86.61t/data=!3m7!1e1!3m5!1sKH1-Yy1mcornMP1WBVkfCQ!2e0!6s%2F%2Fgeo2.ggpht.com%2Fcbk%3Fpanoid%3DKH1-Yy1mcornMP1WBVkfCQ%26output%3Dthumbnail%26cb_client%3Dmaps_sv.tactile.gps%26thumb%3D2%26w%3D203%26h%3D100%26yaw%3D85.637794%26pitch%3D0!7i13312!8i6656!4m5!3m4!1s0x12a49816718e30e5:0x44b0fb3d4f47660a!8m2!3d41.3850639!4d2.1734035!6m1!1e1)
Title: Re: Pergolas
Post by: Grzrd on May 12, 2016, 02:21:05 PM
GA 400 at Lenox Road in Atlanta (https://www.google.com/maps/@33.8512183,-84.3693797,3a,75y,355.44h,91.71t/data=!3m6!1e1!3m4!1sDEzR9dc5ml4IFedqfQsXCg!2e0!7i13312!8i6656)

Buford-Spring Connector at GA 400 in Atlanta (https://www.google.com/maps/@33.8232749,-84.3570636,3a,75y,231.33h,95.38t/data=!3m6!1e1!3m4!1snD_-J1D2wKYZMqbVyP-dSg!2e0!7i13312!8i6656)
Title: Re: Pergolas
Post by: cbeach40 on May 12, 2016, 02:56:20 PM
Couple of Ontario examples at railways:

Highway 403, Brantford (https://goo.gl/maps/pZtGRS6USBA2)
Gardiner Expressway, Toronto (https://goo.gl/maps/DkbCC4iGYJL2)
Title: Re: Pergolas
Post by: TEG24601 on May 12, 2016, 03:58:22 PM
If I'm understanding the question and examples, that is how much of the interface between the I-5 main line and the Express Lanes is handled under the Convention Center in downtown Seattle, as well as the Alaskan Way Viaduct.


Or are you meaning for decoration only?
Title: Re: Pergolas
Post by: CtrlAltDel on May 12, 2016, 05:52:09 PM
Does this count?
https://www.google.com/maps/@36.0740039,-96.055464,3a,75y,85.93h,105.36t/data=!3m6!1e1!3m4!1ssW5ElScb6agSwKaQA-U2jw!2e0!7i13312!8i6656!6m1!1e1

(I-44 at OK-66 near Sapulpa, OK)
Title: Re: Pergolas
Post by: DRMan on May 12, 2016, 08:09:30 PM
Boylston St. over I-90/Mass Pike in Boston
https://www.google.com/maps/@42.3475548,-71.0876128,3a,75y,89.48h,81.79t/data=!3m6!1e1!3m4!1sDV6-TxFeIr9Ww6mwoRPeKw!2e0!7i13312!8i6656 (https://www.google.com/maps/@42.3475548,-71.0876128,3a,75y,89.48h,81.79t/data=!3m6!1e1!3m4!1sDV6-TxFeIr9Ww6mwoRPeKw!2e0!7i13312!8i6656)
Title: Re: Pergolas
Post by: J N Winkler on May 13, 2016, 08:47:05 AM
Just to thank you all for the examples supplied so far--it seems pergolas are more common in North America than I had thought, though perhaps not nearly as frequently encountered on a per-centerline-mile basis as in Spain.

Quote from: TEG24601 on May 12, 2016, 03:58:22 PMIf I'm understanding the question and examples, that is how much of the interface between the I-5 main line and the Express Lanes is handled under the Convention Center in downtown Seattle, as well as the Alaskan Way Viaduct.

Or are you meaning for decoration only?

I looked at I-5 under the Convention Center and SR 99 (I presume through the Battery Tunnel) and it seems the concept is structurally pretty similar, with deck lids in both cases supported by transverse stringers resting on walls.  But the classic pergola (for which the term in Spanish is the clearly cognate pĂ©rgola, a word that is also used to refer to pergolas in the gardening sense; I'm not sure what formal term, if any, is used in English) supports a crossing at extreme skew with stringers left exposed where they are not covered by the overhead facility.

Quote from: CtrlAltDel on May 12, 2016, 05:52:09 PMDoes this count?

https://www.google.com/maps/@36.0740039,-96.055464,3a,75y,85.93h,105.36t/data=!3m6!1e1!3m4!1ssW5ElScb6agSwKaQA-U2jw!2e0!7i13312!8i6656!6m1!1e1

(I-44 at OK-66 near Sapulpa, OK)

I think it's an edge case.  These are straddle bents and are another way to handle skew crossings.  I suspect, though (not having seen the construction plans), that each leg has its own footing, whereas every pergola for which I have seen plans has had both sides of the "box" supported on a common footing.
Title: Re: Pergolas
Post by: mrsman on May 22, 2016, 07:57:42 AM
Does this count - NJ 139 in Jersey City:

https://www.google.com/maps/@40.7326219,-74.0536077,3a,75y,313.67h,83.74t/data=!3m6!1e1!3m4!1sYINYiKoAd5oYZ2htTbrMsQ!2e0!7i13312!8i6656!6m1!1e1
Title: Re: Pergolas
Post by: J N Winkler on May 22, 2016, 10:26:45 AM
Yup!
Title: Re: Pergolas
Post by: Chris on May 22, 2016, 10:51:09 AM
They are fairly common in the Netherlands.

This one is located on A4 between Amsterdam and The Hague, where the freeway crosses the high-speed rail line. Notice how it was built with a future expansion to 10 lanes in mind.
(https://www.aaroads.com/forum/proxy.php?request=http%3A%2F%2Fi.imgur.com%2FnxWuYxt.jpg&hash=b892e5f0ffb719357c98553296516fb8c9e0aa1d)
Title: Re: Pergolas
Post by: Tom958 on May 22, 2016, 11:35:21 AM
I've never heard that term before. I like it, though.

My first reaction was, "Those things are all over the place in Atlanta," but some of the ones that popped into my mind were actually covered, including four for the ramp braids at I-85 and Sugarloaf Parkway not far from my house. I think the largest one might be at the SPUI at Lenox and GA 400:

https://www.google.com/maps/@33.8519223,-84.369966,290m/data=!3m1!1e3

There's another at the SPUI at Sugarloaf and New Hope Road:

https://www.google.com/maps/@33.932,-83.9410335,259m/data=!3m1!1e3
Title: Re: Pergolas
Post by: hm insulators on June 03, 2016, 02:12:04 PM
Quote from: J N Winkler on May 12, 2016, 02:06:33 PM
Are there other examples of pergolas in North America besides the ones built into the I-5/SR 2 (Golden State Freeway/Glendale Freeway) interchange in Los Angeles?

SR 2 southbound to I-5 southbound transition (https://www.google.com/maps/place/Glendale,+CA/@34.1013126,-118.2493483,3a,75y,345.89h,85.44t/data=!3m7!1e1!3m5!1sBJZogz1Xi9sZ_Ynwd-KAUQ!2e0!6s%2F%2Fgeo1.ggpht.com%2Fcbk%3Fpanoid%3DBJZogz1Xi9sZ_Ynwd-KAUQ%26output%3Dthumbnail%26cb_client%3Dmaps_sv.tactile.gps%26thumb%3D2%26w%3D203%26h%3D100%26yaw%3D90.353027%26pitch%3D0!7i13312!8i6656!4m5!3m4!1s0x80c2c032c8f083a9:0xe53fa19efec926a6!8m2!3d34.1425078!4d-118.255075!6m1!1e1)





What about the structure on eastbound I-210 just before Santa Anita Avenue in Arcadia that holds the Metro-Link tracks? Would that be a pergola?

Incidentally, I didn't know that's what it's called.
Title: Re: Pergolas
Post by: Road Hog on June 04, 2016, 08:51:55 PM
If you're just talking about external support structures to prevent a pier from being plopped down in the middle of a main lane, these are all over the Metroplex.
Title: Re: Pergolas
Post by: mgk920 on June 04, 2016, 09:49:20 PM
WI 794 (Lake Parkway) under Union Pacific's ex CNW 'KRM' line and St Francis Ave in Saint Francis (suburban Milwauke), WI

https://goo.gl/maps/hqgHnK25d3k

Mike
Title: Re: Pergolas
Post by: Chris19001 on June 06, 2016, 09:14:49 PM
The Philly area has several as well..  I276 over PA132, and I76 under the freight line between exits 348 & 347 are the obvious ones.
Title: Re: Pergolas
Post by: Roadrunner75 on June 06, 2016, 09:50:01 PM
https://www.google.com/maps/@42.1587152,-87.8737773,3a,66.8y,356.43h,90.63t/data=!3m4!1e1!3m2!1sg-6GKs3O6GoRLWjhVD11qQ!2e0?force=lite (https://www.google.com/maps/@42.1587152,-87.8737773,3a,66.8y,356.43h,90.63t/data=!3m4!1e1!3m2!1sg-6GKs3O6GoRLWjhVD11qQ!2e0?force=lite)

https://www.google.com/maps/@39.956477,-75.1474681,3a,66.8y,7.27h,92.89t/data=!3m4!1e1!3m2!1sH2FLYcUuonrt25yaJ8Enbw!2e0?force=lite (https://www.google.com/maps/@39.956477,-75.1474681,3a,66.8y,7.27h,92.89t/data=!3m4!1e1!3m2!1sH2FLYcUuonrt25yaJ8Enbw!2e0?force=lite)

And depending on your definition...
https://www.google.com/maps/@39.8974384,-75.1870766,3a,66.8y,264.89h,89.61t/data=!3m4!1e1!3m2!1swHwK0a-qD9LDO0OTH-JoPw!2e0?force=lite (https://www.google.com/maps/@39.8974384,-75.1870766,3a,66.8y,264.89h,89.61t/data=!3m4!1e1!3m2!1swHwK0a-qD9LDO0OTH-JoPw!2e0?force=lite)
Title: Re: Pergolas
Post by: Michael on June 06, 2016, 09:56:26 PM
Here's a few from NY:

I-81 southbound over US 11 in Mattydale (https://www.google.com/maps/@43.109559,-76.1481131,20z/data=!3m1!1e3) (the southern half goes under the northbound I-81 bridge)

I-190 in Buffalo (https://www.google.com/maps/@42.902741,-78.9008535,19z/data=!3m1!1e3)

This one in Lockport (https://www.google.com/maps/@43.1693055,-78.6951428,19z/data=!3m1!1e3) isn't an open pergola, but it's the widest bridge deck I've ever seen.  According to Uglybridges (http://uglybridges.com/1392477), it's 399 feet wide.
Title: Re: Pergolas
Post by: Roadrunner75 on June 06, 2016, 10:24:25 PM
If we're considering 'closed' pergolas, then, here's one you might want to think twice about driving under...
https://www.google.com/maps/@39.9403064,-75.1863875,3a,92.8y,105.14h,96.97t/data=!3m4!1e1!3m2!1suoAxZ2SLuqSb_LUBltUrhQ!2e0?force=lite (https://www.google.com/maps/@39.9403064,-75.1863875,3a,92.8y,105.14h,96.97t/data=!3m4!1e1!3m2!1suoAxZ2SLuqSb_LUBltUrhQ!2e0?force=lite)
https://www.google.com/maps/@39.9402846,-75.1858269,3a,55.4y,321.89h,115.5t/data=!3m4!1e1!3m2!1sofgcSlg39IHOfpIlub_G9A!2e0?force=lite (https://www.google.com/maps/@39.9402846,-75.1858269,3a,55.4y,321.89h,115.5t/data=!3m4!1e1!3m2!1sofgcSlg39IHOfpIlub_G9A!2e0?force=lite)

Title: Re: Pergolas
Post by: thefraze_1020 on June 06, 2016, 10:29:49 PM
There is a railroad bridge over US 2 near Gold Bar, WA that kind of counts.

https://www.google.com/maps/@47.834214,-121.6473993,3a,75y,76.92h,78.1t/data=!3m6!1e1!3m4!1sM0ZCSP5WQceZHBs-13mGYQ!2e0!7i13312!8i6656?hl=en
Title: Re: Pergolas
Post by: amroad17 on June 07, 2016, 07:59:39 AM
Quote from: Chris on May 22, 2016, 10:51:09 AM
They are fairly common in the Netherlands.

This one is located on A4 between Amsterdam and The Hague, where the freeway crosses the high-speed rail line. Notice how it was built with a future expansion to 10 lanes in mind.
(https://www.aaroads.com/forum/proxy.php?request=http%3A%2F%2Fi.imgur.com%2FnxWuYxt.jpg&hash=b892e5f0ffb719357c98553296516fb8c9e0aa1d)
That is a great photo!
Title: Re: Pergolas
Post by: Bigmikelakers on June 13, 2016, 11:54:42 AM
There's one at the 261/241 transition in Orange County:

https://www.google.com/maps/@33.7831388,-117.7475251,3a,75y,52.23h,85.27t/data=!3m6!1e1!3m4!1slQU9angoEDYBtuptu333QQ!2e0!7i13312!8i6656!6m1!1e1
Title: Re: Pergolas
Post by: myosh_tino on June 13, 2016, 03:05:13 PM
There is also one on the I-5 southbound where eastbound CA-60 crosses over it...

https://goo.gl/maps/dxpFwjJ9C822
Title: Re: Pergolas
Post by: hm insulators on June 17, 2016, 02:11:38 PM
Quote from: Roadrunner75 on June 06, 2016, 10:24:25 PM
If we're considering 'closed' pergolas, then, here's one you might want to think twice about driving under...
https://www.google.com/maps/@39.9403064,-75.1863875,3a,92.8y,105.14h,96.97t/data=!3m4!1e1!3m2!1suoAxZ2SLuqSb_LUBltUrhQ!2e0?force=lite (https://www.google.com/maps/@39.9403064,-75.1863875,3a,92.8y,105.14h,96.97t/data=!3m4!1e1!3m2!1suoAxZ2SLuqSb_LUBltUrhQ!2e0?force=lite)
https://www.google.com/maps/@39.9402846,-75.1858269,3a,55.4y,321.89h,115.5t/data=!3m4!1e1!3m2!1sofgcSlg39IHOfpIlub_G9A!2e0?force=lite (https://www.google.com/maps/@39.9402846,-75.1858269,3a,55.4y,321.89h,115.5t/data=!3m4!1e1!3m2!1sofgcSlg39IHOfpIlub_G9A!2e0?force=lite)




That one has seen better days, hasn't it? :no:
Title: Re: Pergolas
Post by: jakeroot on June 17, 2016, 07:28:21 PM
I think this might be an example: Chilliwack, BC, Evans Road overpass: https://goo.gl/grgGvD
Title: Re: Pergolas
Post by: sparker on June 18, 2016, 01:56:02 AM
Nice example on CA 99 at Livingston, on a S-curve that takes the freeway under the UP (former SP) SJ Valley main line.  It opened circa 1997, replacing one of the more tight & narrow 4-lane underpasses on 99.
Title: Re: Pergolas
Post by: luokou on June 18, 2016, 02:54:21 AM
Set of three at the southern QE2 (AB-2) and Anthony Henday Drive (AB-216) interchange:

https://goo.gl/maps/hjch6Q8Wibr