What bridges were built for reasons other than carrying traffic of any kind–not pedestrian, rail, vehicle, or otherwise?
I'm not sure if this counts as a bridge, but this in downtown Dallas (https://goo.gl/maps/Fc3Ny7WMix7J3nW57) was built for the sole purpose of carrying electrical conduit across the freeway.
And how common is it for a pipeline to get its own truss (https://goo.gl/maps/6puRLodpYA7XTpJ17)?
I'm not exactly sure what this carries over I-95 in MD. (A conveyor?) But it's not carrying any traffic.
https://goo.gl/maps/jDQWGzX7B41V5Ye89
Quote from: BrianP on July 13, 2021, 04:10:44 PM
I'm not exactly sure what this carries over I-95 in MD. (A conveyor?) But it's not carrying any traffic.
https://goo.gl/maps/jDQWGzX7B41V5Ye89
Yeah, that looks like a mining conveyor.
I-40 at the Colorado River has a few pipeline bridges, if that's along the lines of what you're looking for:
(https://i.imgur.com/ozQSaFm.png) (https://www.google.com/maps/@34.717256,-114.4855538,3a,75y,200.78h,88.05t/data=!3m7!1e1!3m5!1sxeC-N9eA4DPTy4gfV9RzGw!2e0!6shttps:%2F%2Fstreetviewpixels-pa.googleapis.com%2Fv1%2Fthumbnail%3Fpanoid%3DxeC-N9eA4DPTy4gfV9RzGw%26cb_client%3Dmaps_sv.tactile.gps%26w%3D203%26h%3D100%26yaw%3D80.83056%26pitch%3D0%26thumbfov%3D100!7i16384!8i8192)
Quote from: CtrlAltDel on July 13, 2021, 05:12:31 PM
I-40 at the Colorado River has a few pipeline bridges, if that's along the lines of what you're looking for:
(https://i.imgur.com/ozQSaFm.png) (https://www.google.com/maps/@34.717256,-114.4855538,3a,75y,200.78h,88.05t/data=!3m7!1e1!3m5!1sxeC-N9eA4DPTy4gfV9RzGw!2e0!6shttps:%2F%2Fstreetviewpixels-pa.googleapis.com%2Fv1%2Fthumbnail%3Fpanoid%3DxeC-N9eA4DPTy4gfV9RzGw%26cb_client%3Dmaps_sv.tactile.gps%26w%3D203%26h%3D100%26yaw%3D80.83056%26pitch%3D0%26thumbfov%3D100!7i16384!8i8192)
That's former US 66, it was converted to pipeline usage.
Quote from: Max Rockatansky on July 13, 2021, 05:20:52 PM
Quote from: CtrlAltDel on July 13, 2021, 05:12:31 PM
I-40 at the Colorado River has a few pipeline bridges, if that's along the lines of what you're looking for:
(https://i.imgur.com/ozQSaFm.png) (https://www.google.com/maps/@34.717256,-114.4855538,3a,75y,200.78h,88.05t/data=!3m7!1e1!3m5!1sxeC-N9eA4DPTy4gfV9RzGw!2e0!6shttps:%2F%2Fstreetviewpixels-pa.googleapis.com%2Fv1%2Fthumbnail%3Fpanoid%3DxeC-N9eA4DPTy4gfV9RzGw%26cb_client%3Dmaps_sv.tactile.gps%26w%3D203%26h%3D100%26yaw%3D80.83056%26pitch%3D0%26thumbfov%3D100!7i16384!8i8192)
That’s former US 66, it was converted to pipeline usage.
Well, then it's been redesigned to carry no traffic. :-D
More seriously, though, the image shows three pipeline bridgelike contraptions, and I don't think that all three were US-66. I admit, though, that I didn't look anything up here, and so I might very well be wrong.
Quote from: CtrlAltDel on July 13, 2021, 05:29:57 PM
Quote from: Max Rockatansky on July 13, 2021, 05:20:52 PM
Quote from: CtrlAltDel on July 13, 2021, 05:12:31 PM
I-40 at the Colorado River has a few pipeline bridges, if that's along the lines of what you're looking for:
(https://i.imgur.com/ozQSaFm.png) (https://www.google.com/maps/@34.717256,-114.4855538,3a,75y,200.78h,88.05t/data=!3m7!1e1!3m5!1sxeC-N9eA4DPTy4gfV9RzGw!2e0!6shttps:%2F%2Fstreetviewpixels-pa.googleapis.com%2Fv1%2Fthumbnail%3Fpanoid%3DxeC-N9eA4DPTy4gfV9RzGw%26cb_client%3Dmaps_sv.tactile.gps%26w%3D203%26h%3D100%26yaw%3D80.83056%26pitch%3D0%26thumbfov%3D100!7i16384!8i8192)
That's former US 66, it was converted to pipeline usage.
Well, then it's been redesigned to carry no traffic. :-D
More seriously, though, the image shows three pipeline bridgelike contraptions, and I don't think that all three were US-66. I admit, though, that I didn't look anything up here, and so I might very well be wrong.
You are correct, there is two standalone pipeline bridge structures that was designed from the onset as such. I only know the Colorado Arch Bridge so well because it is a rare example of a classic piece of highway not being demolished or left to rot out in the Mojave:
https://flic.kr/p/RVAj7V
https://flic.kr/p/RVAiLK
Makes me think of this (https://goo.gl/maps/jtsEQHbCoYp91Srq7) or this. (https://goo.gl/maps/4DAtAnGkzroqHuHc9)
I-376 in Pittsburgh has a bridge over it whose purpose is to collect falling concrete from the crumbling arch bridge above it.
Quote from: ethanhopkin14 on July 13, 2021, 05:35:44 PM
Makes me think of this (https://goo.gl/maps/jtsEQHbCoYp91Srq7) or this. (https://goo.gl/maps/4DAtAnGkzroqHuHc9)
Crazy that the first link points to a suspension, whereas the second points straight down at the pavement.
There is a small suspension bridge carrying a couple pipelines across the Malad River (https://goo.gl/maps/DPWCo1uq7FsjvLZV7) east of Garland, Utah.
I-215 in Salt Lake City has several pipeline bridges (https://goo.gl/maps/rbPyhcUvBtj4YDzx7) in the sunken freeway section, along with a couple carrying some more substantial water courses. This one, for example, carries Little Cottonwood Creek (https://goo.gl/maps/yufAT5VKgA8MKvwS9).
There are also a couple bridges carrying mining conveyor belts/pipelines near the Kennecott copper mine on the west side of the valley. Here's one on SR 209 in Copperton (https://goo.gl/maps/ya7KuMLMR1kReZAv5) and another substantial one across SR 201 west of Magna (https://goo.gl/maps/8VGefZAgkyCJr39NA).
Quote from: US 89 on July 13, 2021, 06:55:09 PM
This one, for example, carries Little Cottonwood Creek (https://goo.gl/maps/yufAT5VKgA8MKvwS9).
Now, that's awesome!
On I-285 in Atlanta, I think there was a temporary bridge conveyor for carrying fill dirt and/or aggregate over the highway. This was for construction of the fifth runway at ATL airport.
Honorable mention goes to this sinuous, enclosed viaduct (https://goo.gl/maps/VePAK5CG1U4Y5d6s9) that runs under I-670 in Columbus, OH. It connects two pharmaceutical facilities, but I'm not sure if it's a conveyor or just a walkway (or both).
Don't forget the wildlife crossings, one of which is on I-78 in Union County, NJ. These are starting to appear out west and elsewhere around the world.
I'm not sure, but are there any freeways near airports with bridges whose sole purpose is to stage runway approach lights?
Ancient Roman aqueducts
http://en.wikipedia.org/wiki/Grand_Tower_Pipeline_Bridge
Quote from: lepidopteran on July 13, 2021, 07:16:05 PM
I'm not sure, but are there any freeways near airports with bridges whose sole purpose is to stage runway approach lights?
http://www.google.com/maps/@27.9588363,-82.5421096,3a,75y,274.92h,92.56t/data=!3m6!1e1!3m4!1sQaBF2R-Ia-WlEASwk4-EIA!2e0!7i16384!8i8192
Quote from: lepidopteran on July 13, 2021, 07:16:05 PM
I'm not sure, but are there any freeways near airports with bridges whose sole purpose is to stage runway approach lights?
Atlanta has an example of that (https://goo.gl/maps/69D5kAH1DQPDqEZE7) as well.
The overhead gantries are called sign bridges.
https://www.google.com/maps/@64.1564823,-145.8508885,3a,60y,8.64h,91.73t/data=!3m6!1e1!3m4!1sZEz94DpsmDPtQl3laNNXEw!2e0!7i13312!8i6656
There's the bridge that carries the Alaska Pipeline across the Tanana River, near Big Delta.
The Martin Tipple (at least that's what my relatives called it...wasn't really in Martin), now defunct and mostly demolished, had coal chutes over KY 122. You could hear coal going through them when driving underneath.
Some of these (in my own OP as well) are really more just suspensions than actual bridges.
(Also, I'd call wildlife crossings "traffic".)
Atlanta airport used to have a 2nd approach light bridge over 285 and its C/D lanes, but took it down about 7 years ago.
Bridges for mine conveyance are pretty common in mining areas. This conveyor near Bobtown, PA has been removed since this GMSV image: https://goo.gl/maps/DoxHUrmp7P72DVXw9
There is (was?) a large suspension bridge carrying coal over WV 103 to a prep plant near Gary, WV: https://goo.gl/maps/jZM18tiXRGo8Nqui7
In Canton, OH, there is a bridge for a water or sewer line over US 30/US 62: https://goo.gl/maps/yGzfd3x7EM8VdcUi7 I presume the lines predates the freeway when there used to be a street on the path of the pipe.
Yeager Airport in Charleston, WV has a large bridge over a ravine carrying approach lighting: https://goo.gl/maps/5Us2vY95pqK1MNJ6A
Quote from: US 89 on July 13, 2021, 08:37:41 PM
Quote from: lepidopteran on July 13, 2021, 07:16:05 PM
I'm not sure, but are there any freeways near airports with bridges whose sole purpose is to stage runway approach lights?
Atlanta has an example of that (https://goo.gl/maps/69D5kAH1DQPDqEZE7) as well.
San Antonio. (https://goo.gl/maps/PcFD8v2bfHEy1n6u7)
In Portland, OR there is a cable stay bridge built across the River in Downtown only to carry light rail.
Quote from: kphoger on July 13, 2021, 03:46:25 PM
... not pedestrian, rail, vehicle, or otherwise?
Quote from: roadman65 on July 14, 2021, 11:03:42 AM
In Portland, OR there is a cable stay bridge built across the River in Downtown only to carry light rail.
:hmmm:
Thought you meant auto. Well High Bridge in NYC was built to carry water before it opened to pedestrians.
I get it's still traffic of a kind, but I-70 use to have one of Stapleton's runways over the top of it here in Denver.
Chris
Quote from: jayhawkco on July 14, 2021, 12:21:00 PM
I get it's still traffic of a kind, but I-70 use to have one of Stapleton's runways over the top of it here in Denver.
I remember that, I think. I-190
at O'Hare (https://goo.gl/maps/totizeuJ95byshg69) as well. There's a runway
across Central Avenue (https://goo.gl/maps/1X8oUbzf4Bdvxe8y6) here in Wichita. But yes, those are bridges designed to carry traffic.
Truss structure carrying two pipelines over the Puyallup River, near Orting, Washington (about an hour south of Seattle):
https://goo.gl/maps/J9pet4en8vknXQGJ9
I think it was built in the 1930s. It was originally adjacent to the first McCutcheon bridge, before that bridge was rebuilt in the 1990s.
Quote from: kphoger on July 14, 2021, 12:28:31 PM
Quote from: jayhawkco on July 14, 2021, 12:21:00 PM
I get it's still traffic of a kind, but I-70 use to have one of Stapleton's runways over the top of it here in Denver.
I remember that, I think. I-190 at O'Hare (https://goo.gl/maps/totizeuJ95byshg69) as well. There's a runway across Central Avenue (https://goo.gl/maps/1X8oUbzf4Bdvxe8y6) here in Wichita. But yes, those are bridges designed to carry traffic.
Sepulveda (https://goo.gl/maps/ZLgaYT1aHr7YVL9i9)
There are some dramatically large bridge structures to hold runway approach lighting at Seatac Airport, in Seattle:
https://goo.gl/maps/sSdejUxotB1hghqa8
They pass over the valleys north of the airport, as well as the WA-518 freeway.
Quote from: jayhawkco on July 14, 2021, 12:21:00 PM
I get it's still traffic of a kind, but I-70 use to have one of Stapleton's runways over the top of it here in Denver.
Quote from: kphoger on July 14, 2021, 12:28:31 PM
I remember that, I think. I-190 at O'Hare (https://goo.gl/maps/totizeuJ95byshg69) as well. There's a runway across Central Avenue (https://goo.gl/maps/1X8oUbzf4Bdvxe8y6) here in Wichita. But yes, those are bridges designed to carry traffic.
Quote from: ethanhopkin14 on July 14, 2021, 02:07:49 PM
Sepulveda (https://goo.gl/maps/ZLgaYT1aHr7YVL9i9)
Schiphol Airport near Amsterdam has two of these over the A4 freeway (Euroroute E19). The southern taxiway has a bridge over A4, then the A4 tunnels under the main east-west runway and associated taxiways. In this case, the reason this is unusual is that all of Schiphol is some 13 feet below sea level. The name Schiphol means the same in English, "ship hole" (essentially a turning basin for the old long-abandoned inland seaport).
Quote from: Big John on July 13, 2021, 06:35:51 PM
I-376 in Pittsburgh has a bridge over it whose purpose is to collect falling concrete from the crumbling arch bridge above it.
That one has since been removed (https://www.google.com/maps/@40.4286325,-79.9375049,3a,90y,273.98h,101.07t/data=!3m7!1e1!3m5!1sn2WnRdH9QRolPxPEoBjfGQ!2e0!5s20151201T000000!7i13312!8i6656) with the complete replacement of the upper bridge. (https://en.wikipedia.org/wiki/Greenfield_Bridge)
At one point one such bridge, the Hegigio Gorge Pipeline Bridge (https://en.wikipedia.org/wiki/Hegigio_Gorge_Pipeline_Bridge) in Papua New Guinea, held the World's highest bridge title. It has been since surpassed by no less than 6 Chinese expressway bridges. In fact it is still the only one of the top 10 highest bridges not to carry a freeway, and one of only 2 outside China (the other is in Mexico).
Quote from: CNGL-Leudimin on July 22, 2021, 05:36:16 AM
At one point one such bridge, the Hegigio Gorge Pipeline Bridge (https://en.wikipedia.org/wiki/Hegigio_Gorge_Pipeline_Bridge) in Papua New Guinea, held the World's highest bridge title. It has been since surpassed by no less than 6 Chinese expressway bridges. In fact it is still the only one of the top 10 highest bridges not to carry a freeway, and one of only 2 outside China (the other is in Mexico).
What is the one in Mexico? I ask because Puente Baluarte carries a freeway–it just happens to be a two-lane freeway.
Well, I meant it is one of the only two of the 10 highest bridges overall (i.e. carrying anything) to be outside China, the other, as you said, is the Baluarte bridge.
Quote from: Big John on July 13, 2021, 06:35:51 PM
I-376 in Pittsburgh has a bridge over it whose purpose is to collect falling concrete from the crumbling arch bridge above it.
That bridge has been removed and a new bridge has been built in the same spot. The new bridge is about 4 years old now.
Quote from: Mr. Matté on July 19, 2021, 12:22:08 PM
Quote from: Big John on July 13, 2021, 06:35:51 PM
I-376 in Pittsburgh has a bridge over it whose purpose is to collect falling concrete from the crumbling arch bridge above it.
That one has since been removed (https://www.google.com/maps/@40.4286325,-79.9375049,3a,90y,273.98h,101.07t/data=!3m7!1e1!3m5!1sn2WnRdH9QRolPxPEoBjfGQ!2e0!5s20151201T000000!7i13312!8i6656) with the complete replacement of the upper bridge. (https://en.wikipedia.org/wiki/Greenfield_Bridge)
Quote from: Flint1979 on July 28, 2021, 09:09:26 AM
Quote from: Big John on July 13, 2021, 06:35:51 PM
I-376 in Pittsburgh has a bridge over it whose purpose is to collect falling concrete from the crumbling arch bridge above it.
That bridge has been removed and a new bridge has been built in the same spot. The new bridge is about 4 years old now.
Is that one still there? I've heard it was removed.
The Watchung Reserve in NJ has wildlife bridges over I-78.
Hagerstown Airport runway goes over US 11 but not sure that counts?
SM-T290
Quote from: sbeaver44 on July 28, 2021, 08:57:11 PM
The Watchung Reserve in NJ has wildlife bridges over I-78.
Hagerstown Airport runway goes over US 11 but not sure that counts?
As I am the OP, I'll say that animals and airplanes both count as "traffic".
Near Franklin Furnace, OH, there is a cable suspension pipeline bridge over the Ohio River, maybe a mile or so downstream from the Greenup Locks and Dam. It can be seen from US 52 here https://goo.gl/maps/pZj4wqNanJ7ap6XH8 and can also be seen from KY 3116 (Old US 23) (no GSV). I want to say it's a natural gas pipeline but it could be petroleum. Been around for as long as I can remember.
Since my previous example has been demolished, I'll come up with a coal-carrying viaduct over US 83 near Flkirk ND.
Quote from: Big John on July 29, 2021, 06:54:25 PM
Since my previous example has been demolished, I'll come up with a coal-carrying viaduct over US 83 near Flkirk ND.
I believe it has also been demolished but there was a coal bridge over PA 88 and the Mon River near Fredericktown
In Plattsmouth, Nebraska north of the toll bridge and the BNSF bridge is a pipeline suspension bridge at the Missouri River.
Wastewater pipeline bridge across Sam Houston Tollway. (https://goo.gl/maps/irUtWTGXrRUXp6VBA)
Quote from: kphoger on July 13, 2021, 03:46:25 PM
What bridges were built for reasons other than carrying traffic of any kind–not pedestrian, rail, vehicle, or otherwise?
Years ago, there was a coal conveyor system that crossed WV-93 in Bismarck that carried coal from the mine located north of WV-93 to Dominion Virginia Power's large coal-fired Mount Storm Generating Station. I presume that the supply of coal that could be recovered from the mine at the other end of the conveyor ran out, and so the conveyor was shut-down and dismantled (this was years before ADHS Corridor H was constructed in this area).
There is a coal conveyor system in Utah's Wasatch Plateau that begins at the Skyline Mine and crosses SR 264 and SR 96 on its way to a railroad terminal just north of Clear Creek.
(https://i.imgur.com/vY68R3P.jpg)
(https://i.imgur.com/IwTmWe1.jpg)
This can be one of them since it's cut off and a bridge replacement here would be a waste.
1819 I-42
https://maps.app.goo.gl/TGHrncUzqu3Xo2RK8
Quote from: tolbs17 on December 22, 2021, 12:30:15 PM
This can be one of them since it's cut off and a bridge replacement here would be a waste.
1819 I-42
https://maps.app.goo.gl/TGHrncUzqu3Xo2RK8
Google Street View from one of the (now cut off) side roads seems to imply that the former crossing was at-grade, and there was never a bridge there in the first place.
https://goo.gl/maps/hhctCm2KgtGmTUL28 (https://goo.gl/maps/hhctCm2KgtGmTUL28)
Quote from: dlsterner on December 22, 2021, 07:14:18 PM
Quote from: tolbs17 on December 22, 2021, 12:30:15 PM
This can be one of them since it's cut off and a bridge replacement here would be a waste.
1819 I-42
https://maps.app.goo.gl/TGHrncUzqu3Xo2RK8
Google Street View from one of the (now cut off) side roads seems to imply that the former crossing was at-grade, and there was never a bridge there in the first place.
https://goo.gl/maps/hhctCm2KgtGmTUL28 (https://goo.gl/maps/hhctCm2KgtGmTUL28)
There is a bridge at that crossing. It goes over a creek. Thought I put the right coordinates, but it's this (https://www.google.com/maps/@35.5007129,-78.2799925,3a,15.4y,49.33h,88.7t/data=!3m7!1e1!3m5!1sVGESF6_Rvf979j6wWask5A!2e0!6shttps:%2F%2Fstreetviewpixels-pa.googleapis.com%2Fv1%2Fthumbnail%3Fpanoid%3DVGESF6_Rvf979j6wWask5A%26cb_client%3Dmaps_sv.tactile.gps%26w%3D203%26h%3D100%26yaw%3D64.138985%26pitch%3D0%26thumbfov%3D100!7i16384!8i8192).
Quote from: tolbs17 on December 22, 2021, 07:48:52 PM
There is a bridge at that crossing. It goes over a creek.
But that bridge was initially designed for traffic, therefore it doesn't qualify for this thread. If not, then any abandoned bridge could qualify.
Bourbon Barrel bridge! (https://goo.gl/maps/CZao28K3QwcUs1gH6)
Quote from: CoreySamson on December 22, 2021, 07:53:02 PM
Quote from: tolbs17 on December 22, 2021, 07:48:52 PM
There is a bridge at that crossing. It goes over a creek.
But that bridge was initially designed for traffic, therefore it doesn't qualify for this thread. If not, then any abandoned bridge could qualify.
Alright, the Bridge Tar River Trail (https://www.google.com/maps/@35.9544991,-77.7873994,3a,30.8y,310.25h,88.16t/data=!3m7!1e1!3m5!1szbZXpxFd7DHm1Dvn5bAHOw!2e0!6shttps:%2F%2Fstreetviewpixels-pa.googleapis.com%2Fv1%2Fthumbnail%3Fpanoid%3DzbZXpxFd7DHm1Dvn5bAHOw%26cb_client%3Dmaps_sv.tactile.gps%26w%3D203%26h%3D100%26yaw%3D203.10794%26pitch%3D0%26thumbfov%3D100!7i16384!8i8192) qualifies.
Quote from: tolbs17 on December 24, 2021, 07:46:50 PM
Quote from: CoreySamson on December 22, 2021, 07:53:02 PM
Quote from: tolbs17 on December 22, 2021, 07:48:52 PM
There is a bridge at that crossing. It goes over a creek.
But that bridge was initially designed for traffic, therefore it doesn't qualify for this thread. If not, then any abandoned bridge could qualify.
Alright, the Bridge Tar River Trail (https://www.google.com/maps/@35.9544991,-77.7873994,3a,30.8y,310.25h,88.16t/data=!3m7!1e1!3m5!1szbZXpxFd7DHm1Dvn5bAHOw!2e0!6shttps:%2F%2Fstreetviewpixels-pa.googleapis.com%2Fv1%2Fthumbnail%3Fpanoid%3DzbZXpxFd7DHm1Dvn5bAHOw%26cb_client%3Dmaps_sv.tactile.gps%26w%3D203%26h%3D100%26yaw%3D203.10794%26pitch%3D0%26thumbfov%3D100!7i16384!8i8192) qualifies.
That one carries pedestrian traffic. This thread is about bridges that carry non-mammal "things" (like barrels (above) or water).
Irrigation canal over I-82 in Kennewick, WA. Presumably the canal was there before the freeway.
https://goo.gl/maps/pnd3vAwwusLxWNLq7
Natural gas line over I-35 in OKC (https://www.google.com/maps/@35.4351854,-97.4857682,3a,15y,265.16h,87.91t/data=!3m7!1e1!3m5!1sRM54TOHkJtLr82Be6mhz-w!2e0!6shttps:%2F%2Fstreetviewpixels-pa.googleapis.com%2Fv1%2Fthumbnail%3Fpanoid%3DRM54TOHkJtLr82Be6mhz-w%26cb_client%3Dmaps_sv.tactile.gps%26w%3D203%26h%3D100%26yaw%3D256.7999%26pitch%3D0%26thumbfov%3D100!7i16384!8i8192?hl=en)
Pipeline bridge spanning the Ohio Turnpike.
https://goo.gl/maps/rgMVnycoBFWEYEMK6
Smith Dairy has a pipeline structure that carries ice cream mix between its milk and ice cream plants in Orrvillle, Ohio. It crosses over the intersection of Vine Street and Church Street, and even has a mount for a 4-way beacon attached to the side although I've never seen a signal mounted off it.
GMSV: https://goo.gl/maps/6X5jGGvRBUYzm4KV7
There's this pipeline suspension bridge over the Mississippi (https://www.bridgemeister.com/pic.php?pid=1238)
Many log flumes (https://www.amusingplanet.com/2018/06/americas-last-log-flume.html) are bridges
It's not really traffic if it's animals (https://y2y.net/blog/how-do-wildlife-know-to-use-animal-bridges/), is it?
Quote from: skluth on December 29, 2021, 05:06:47 PM
There's this pipeline suspension bridge over the Mississippi (https://www.bridgemeister.com/pic.php?pid=1238)
Many log flumes (https://www.amusingplanet.com/2018/06/americas-last-log-flume.html) are bridges
It's not really traffic if it's animals (https://y2y.net/blog/how-do-wildlife-know-to-use-animal-bridges/), is it?
That log flume comment actually reminds something. Erie, PA has a roller coaster that crosses a road! This might be in a weird category of technically having traffic, but the traffic is a roller coaster, so I'll put it here in case anyone finds it interesting.
https://goo.gl/maps/kRQwhAc2mLrdN9Hd9
Quote from: ethanhopkin14 on July 13, 2021, 05:35:44 PM
Makes me think of this (https://goo.gl/maps/jtsEQHbCoYp91Srq7) or this. (https://goo.gl/maps/4DAtAnGkzroqHuHc9)
The messed up one doesn't have a bridge as best I can tell. It is, however less than two miles from my house.
The Union Arch Bridge (https://en.wikipedia.org/wiki/Union_Arch_Bridge) in Cabin John, Maryland, was originally designed only for Washington Aqueduct. However, vehicle traffic started using the bridge soon after it was completed in 1864.
Quote from: bwana39 on June 25, 2023, 10:30:30 PM
Quote from: ethanhopkin14 on July 13, 2021, 05:35:44 PM
Makes me think of this (https://goo.gl/maps/jtsEQHbCoYp91Srq7) or this. (https://goo.gl/maps/4DAtAnGkzroqHuHc9)
It shows a location 1/2 mile from me.
The messed up one doesn't have a bridge as best I can tell. It is, however less than two miles from my house.
Its certainly debatable whether it qualifies as a full bridge, but CA-190 has this for the aquaduct near Springville:
https://www.google.com/maps/@36.1603856,-118.718301,3a,64.4y,207.68h,94.26t/data=!3m6!1e1!3m4!1sSEyGosPTE3KRb6MRDYdPTA!2e0!7i16384!8i8192?entry=ttu
I have no idea what the genesis of this bridge is, but adjacent to Holmes Street over I-670 in Kansas City is a bridge structure. I can't find anything about it. My guess is maybe some utility lines cross here? Or perhaps it was designed as a pedestrian bridge but then never used?
https://goo.gl/maps/4jr1ugYafxCHzGeK7 (https://goo.gl/maps/4jr1ugYafxCHzGeK7)
There are actually several such structures across I-670, so my best guess is utility lines.
Quote from: fhmiii on July 11, 2023, 11:53:51 AM
I have no idea what the genesis of this bridge is, but adjacent to Holmes Street over I-670 in Kansas City is a bridge structure. I can't find anything about it. My guess is maybe some utility lines cross here? Or perhaps it was designed as a pedestrian bridge but then never used?
https://goo.gl/maps/4jr1ugYafxCHzGeK7 (https://goo.gl/maps/4jr1ugYafxCHzGeK7)
There are actually several such structures across I-670, so my best guess is utility lines.
Retired AT&T Communications ("Long Lines") guy here.
This is just a guess, but on the north side of I-670 one block west of here lies a large building at 1425 Oak Street. This is AT&T's long distance switching center for Kansas City (and other telecom providers too, since the Bell System breakup). Since the freeway passes so close to the building, this bridge could easily be the rerouted cable conduit path from the building to points south.
On M-35 south of Palmer, Michigan, there is a pipeline to carry tailings from the Empire Mine out to the tailings basins. This structure (https://www.google.com/maps/@46.4223295,-87.5831068,3a,75y,119.25h,91.15t/data=!3m6!1e1!3m4!1sJGgLJsOYrM_W7CNgHH9d0Q!2e0!7i3328!8i1664?entry=ttu) carries the pipeline over the highway.
In the city of Marquette, the coal unloader (https://www.google.com/maps/@46.5793601,-87.3914704,3a,75y,21.88h,87.54t/data=!3m6!1e1!3m4!1sGASNoKOk4wqnkPSMHXAjWw!2e0!7i16384!8i8192?entry=ttu) crosses over Lake Shore Boulevard south of the LS&I Ore Dock in the Upper Harbor, carrying the conveyors to move the coal from freighters to the site of the now-former Presque Isle Power Plant.
Fall Creek Aqueduct. 5 of them have been built over the years (photos from Indiana History and Class900indy.com)
It was originally designed to carry canal packet boats in 1835 (so in a sense it did carry "traffic").
But later was repurposed to provide water to downtown Indianapolis.
The wooden arch based original completed in 1837.
(https://static.wixstatic.com/media/39af91_01d2930958ec4eebb3167cca5b1c5266~mv2.png/v1/fill/w_740,h_541,al_c,q_90,usm_0.66_1.00_0.01,enc_auto/39af91_01d2930958ec4eebb3167cca5b1c5266~mv2.png)
Then when it collapsed, it was rebuilt with an Howe truss system in 1882,
(https://static.wixstatic.com/media/39af91_ed83b0e506ec4458b3149d2bdf5c92dd~mv2.png/v1/fill/w_740,h_437,al_c,q_85,usm_0.66_1.00_0.01,enc_auto/39af91_ed83b0e506ec4458b3149d2bdf5c92dd~mv2.png)
again in 1902 and 1904 where it was washed away.
(https://static.wixstatic.com/media/39af91_aa1b3a706f4a4729ba6617a3f90eeb4f~mv2.png/v1/fill/w_740,h_604,al_c,q_90,usm_0.66_1.00_0.01,enc_auto/39af91_aa1b3a706f4a4729ba6617a3f90eeb4f~mv2.png)
When finally in 1904 a masonry arch bridge was built and is still there today.
(https://static.wixstatic.com/media/39af91_54eb4ba805884e80ab0796689806e45c~mv2.jpg/v1/fill/w_740,h_416,al_c,q_80,usm_0.66_1.00_0.01,enc_auto/39af91_54eb4ba805884e80ab0796689806e45c~mv2.jpg)
Maybe somebody here knows about this utility bridge over I-95 in New Rochelle besides me.
https://commons.wikimedia.org/wiki/File:New_Rochelle_Utility_Bridge_over_I-95-1.jpg