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Author Topic: Non-standard overpasses  (Read 9946 times)

jakeroot

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Re: Non-standard overpasses
« Reply #25 on: February 18, 2021, 01:49:23 PM »

Well, and 7 to 8 feet is pretty standard parking garage clearances. Maybe not quite enough to fit that lifted truck, but high enough for most (if not all) regular cars.

MCRoads

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Re: Non-standard overpasses
« Reply #26 on: February 18, 2021, 01:54:54 PM »

Well, and 7 to 8 feet is pretty standard parking garage clearances. Maybe not quite enough to fit that lifted truck, but high enough for most (if not all) regular cars.

While most parking garages are that low, bridges usually aren’t, not unless they are going over a waterway or pedestrian path. And even then, usually they are at least around 10’.
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jakeroot

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Re: Non-standard overpasses
« Reply #27 on: February 18, 2021, 02:06:30 PM »

Well, and 7 to 8 feet is pretty standard parking garage clearances. Maybe not quite enough to fit that lifted truck, but high enough for most (if not all) regular cars.

While most parking garages are that low, bridges usually aren’t, not unless they are going over a waterway or pedestrian path. And even then, usually they are at least around 10’.

Of course, yes. And in the US, it would certainly be signed out the ying-yang as drivers would have repeatedly hit it. A bit like this 8-foot clearance underpass in Renton, WA.

MCRoads

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Re: Non-standard overpasses
« Reply #28 on: February 18, 2021, 02:10:12 PM »

Well, and 7 to 8 feet is pretty standard parking garage clearances. Maybe not quite enough to fit that lifted truck, but high enough for most (if not all) regular cars.

While most parking garages are that low, bridges usually aren’t, not unless they are going over a waterway or pedestrian path. And even then, usually they are at least around 10’.

Of course, yes. And in the US, it would certainly be signed out the ying-yang as drivers would have repeatedly hit it. A bit like this 8-foot clearance underpass in Renton, WA.
If that is 8’ 0” , than the bridge linked before might be even lower! Maybe only 5-6’!
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jakeroot

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Re: Non-standard overpasses
« Reply #29 on: February 18, 2021, 02:13:56 PM »

Well, and 7 to 8 feet is pretty standard parking garage clearances. Maybe not quite enough to fit that lifted truck, but high enough for most (if not all) regular cars.

While most parking garages are that low, bridges usually aren’t, not unless they are going over a waterway or pedestrian path. And even then, usually they are at least around 10’.

Of course, yes. And in the US, it would certainly be signed out the ying-yang as drivers would have repeatedly hit it. A bit like this 8-foot clearance underpass in Renton, WA.
If that is 8’ 0” , than the bridge linked before might be even lower! Maybe only 5-6’!

Here is a better view: https://goo.gl/maps/ohsgTrv6PaFSf1w5A

Based on that mid-2000s Mitsubishi Endeavor in the foreground, I would guess the clearance is around 8 to 9 feet.

webny99

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Re: Non-standard overpasses
« Reply #30 on: February 18, 2021, 02:29:03 PM »

The New York Thruway (I-90) goes under NY 64 like this.
It's different, but still up to standards.  I believe it's actually a newer bridge.

Speaking of the Thruway, what about something like this?
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jemacedo9

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Re: Non-standard overpasses
« Reply #31 on: February 18, 2021, 02:59:18 PM »

The New York Thruway (I-90) goes under NY 64 like this.
It's different, but still up to standards.  I believe it's actually a newer bridge.

Speaking of the Thruway, what about something like this?

This one, further east in Victor...I used to travel through this a lot...it's a little tricky...
https://goo.gl/maps/zq8mDPazFhigwdKL7
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ethanhopkin14

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Re: Non-standard overpasses
« Reply #32 on: February 18, 2021, 03:01:21 PM »

The New York Thruway (I-90) goes under NY 64 like this.
It's different, but still up to standards.  I believe it's actually a newer bridge.

Speaking of the Thruway, what about something like this?

This one, further east in Victor...I used to travel through this a lot...it's a little tricky...
https://goo.gl/maps/zq8mDPazFhigwdKL7

This one in particular borders on tunnel material.  Which brings up a topic, when does a bridge become a tunnel?
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MCRoads

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Re: Non-standard overpasses
« Reply #33 on: February 18, 2021, 03:05:31 PM »

The New York Thruway (I-90) goes under NY 64 like this.
It's different, but still up to standards.  I believe it's actually a newer bridge.

Speaking of the Thruway, what about something like this?

This one, further east in Victor...I used to travel through this a lot...it's a little tricky...
https://goo.gl/maps/zq8mDPazFhigwdKL7

This one in particular borders on tunnel material.  Which brings up a topic, when does a bridge become a tunnel?

Most of the “Box Culvert”  bridges on here I would consider a tunnel, as that is basically what a culvert is: a tunnel. These just happen to be very big culvert with a road through them.
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Steve.S

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Re: Non-standard overpasses
« Reply #34 on: February 18, 2021, 05:06:28 PM »

This railroad bridge is worth mentioning just because of the low clearance.

https://goo.gl/maps/TR7y8nzbnsvHfqBX6
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kphoger

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Re: Non-standard overpasses
« Reply #35 on: February 18, 2021, 05:11:48 PM »

This railroad bridge is worth mentioning just because of the low clearance.

https://goo.gl/maps/TR7y8nzbnsvHfqBX6

We've had a thread about this before haven't we?

Anyway, beat you!
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Steve.S

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Re: Non-standard overpasses
« Reply #36 on: February 18, 2021, 05:15:45 PM »

Quote
We've had a thread about this before haven't we?

Anyway, beat you!

Not sure about the previous thread, but I would duck while driving under your bridge!
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1

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Re: Non-standard overpasses
« Reply #37 on: February 18, 2021, 05:17:34 PM »

Isn't there a 1,8m somewhere in France?
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jakeroot

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Re: Non-standard overpasses
« Reply #38 on: February 18, 2021, 05:18:18 PM »

The New York Thruway (I-90) goes under NY 64 like this.
It's different, but still up to standards.  I believe it's actually a newer bridge.

Speaking of the Thruway, what about something like this?

This one, further east in Victor...I used to travel through this a lot...it's a little tricky...
https://goo.gl/maps/zq8mDPazFhigwdKL7

Despite normally living thousands of miles way, this was actually the first example I thought of. I had family-friends that lived in Victor until very recently, and we drove through that tunnel a lot to get between their housing estate off Gillis Rd and the 490.

MCRoads

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Re: Non-standard overpasses
« Reply #39 on: February 18, 2021, 05:29:27 PM »

This railroad bridge is worth mentioning just because of the low clearance.

https://goo.gl/maps/TR7y8nzbnsvHfqBX6

We've had a thread about this before haven't we?

Anyway, beat you!
I like how the google car gives no craps, drives over the railroad tracks (I’m guessing that that isn’t supposed to be a road, lol) and just continues on that road.



Isn't there a 1,8m somewhere in France?

Found it!

Introducing a 1.8 m (5' 11") underpass in Rouen, France. It's so low Google couldn't pass through it, and has also ruined the holidays to several Dutch vacationers (the first two are from the same crash):





« Last Edit: February 18, 2021, 05:44:40 PM by MCRoads »
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US 89

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Re: Non-standard overpasses
« Reply #40 on: February 18, 2021, 07:25:49 PM »

There is an 8'0" railroad underpass in Springville, Utah. Naturally, GSV couldn't go under it either.

I have no idea why it's there...it's not that old of a structure, the railroad line has multiple grade crossings already, and 1600 South is not exactly a high-traffic road (and it already has a grade crossing at another line just to the west). Seems like this could have just been a grade crossing.

Tom958

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Re: Non-standard overpasses
« Reply #41 on: February 18, 2021, 07:27:34 PM »

Culverts as underpasses are pretty common in the west and midwest, as I've found researching my posts for the ORIGINAL Interstate Bridge Designs From Every State thread. Of all the ones I've found, this one in Illinois is my favorite.
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zachary_amaryllis

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Re: Non-standard overpasses
« Reply #42 on: February 18, 2021, 08:10:07 PM »

There was one on I-25 between Colorado Springs and Denver, but it is being turned into a bridge during the construction of the express lanes. Here is what it looked like.

what about the i-25/225 split south of denver... that seems sort of culvert-y to me...
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MCRoads

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Re: Non-standard overpasses
« Reply #43 on: February 18, 2021, 08:36:32 PM »

There was one on I-25 between Colorado Springs and Denver, but it is being turned into a bridge during the construction of the express lanes. Here is what it looked like.
what about the i-25/225 split south of denver... that seems sort of culvert-y to me...
That isn’t a culvert, it’s just a really wide bridge.
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webny99

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Re: Non-standard overpasses
« Reply #44 on: February 18, 2021, 09:01:20 PM »

This one, further east in Victor...I used to travel through this a lot...it's a little tricky...
https://goo.gl/maps/zq8mDPazFhigwdKL7

Despite normally living thousands of miles way, this was actually the first example I thought of. I had family-friends that lived in Victor until very recently, and we drove through that tunnel a lot to get between their housing estate off Gillis Rd and the 490.

Dang, you've been through it more times than me, and I live less than 20 minutes away! I couldn't even begin to count the amount of times I've been over it on the Thruway, but I've never been through it to my knowledge.
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ErmineNotyours

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Re: Non-standard overpasses
« Reply #45 on: February 18, 2021, 09:23:15 PM »

Well, and 7 to 8 feet is pretty standard parking garage clearances. Maybe not quite enough to fit that lifted truck, but high enough for most (if not all) regular cars.

While most parking garages are that low, bridges usually aren’t, not unless they are going over a waterway or pedestrian path. And even then, usually they are at least around 10’.

Of course, yes. And in the US, it would certainly be signed out the ying-yang as drivers would have repeatedly hit it. A bit like this 8-foot clearance underpass in Renton, WA.


The previous Renton bridge on the site: 6-6.






Back to the culverts.  I noticed that in Victoria, BC there was a railroad that passed under a round culvert.  Now it's a trail.  Sometimes in the 70s, Seattle Times cartoonist Alan Pratt drew a proposed solution to traffic problems.  The first panel was an exaggerated spaghetti interchange, and panel two was the same interchange, but built with culverts.  The logic was that since culverts are so common, they must be cheaper, and if only the state could build highways with all culverts, they would be affordable.  With the Seattle Times archive available online, I've been trying to find this cartoon, with no luck.

Also, the Snoqualmie Pass Wildlife Crossing was built as a culvert, then filled in.
« Last Edit: February 18, 2021, 10:13:08 PM by ErmineNotyours »
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jakeroot

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Re: Non-standard overpasses
« Reply #46 on: February 18, 2021, 11:48:31 PM »

Well, and 7 to 8 feet is pretty standard parking garage clearances. Maybe not quite enough to fit that lifted truck, but high enough for most (if not all) regular cars.

While most parking garages are that low, bridges usually aren’t, not unless they are going over a waterway or pedestrian path. And even then, usually they are at least around 10’.

Of course, yes. And in the US, it would certainly be signed out the ying-yang as drivers would have repeatedly hit it. A bit like this 8-foot clearance underpass in Renton, WA.


The previous Renton bridge on the site: 6-6.




Damn, you have pictures! I never saw it with my own eyes, so it's very cool to see those.

Really no wonder that railroad leg needed reconstruction. That's one of the most bizarre underpasses ever.

Four cows is the most amazing measurement ever.

jakeroot

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Re: Non-standard overpasses
« Reply #47 on: February 19, 2021, 02:58:17 PM »

Well, and 7 to 8 feet is pretty standard parking garage clearances. Maybe not quite enough to fit that lifted truck, but high enough for most (if not all) regular cars.

While most parking garages are that low, bridges usually aren’t, not unless they are going over a waterway or pedestrian path. And even then, usually they are at least around 10’.

Of course, yes. And in the US, it would certainly be signed out the ying-yang as drivers would have repeatedly hit it. A bit like this 8-foot clearance underpass in Renton, WA.
If that is 8’ 0” , than the bridge linked before might be even lower! Maybe only 5-6’!

Here is a better view: https://goo.gl/maps/ohsgTrv6PaFSf1w5A

Based on that mid-2000s Mitsubishi Endeavor in the foreground, I would guess the clearance is around 8 to 9 feet.
that  :colorful: graffiti though

Of all the things in that image, the graffiti gets your attention!!?!? Lol.

jay8g

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Re: Non-standard overpasses
« Reply #48 on: February 20, 2021, 07:19:09 PM »

Returning to the culvert discussion, this underpass north of Anchorage is a pair of metal arch culverts! I've seen similar things done for pedestrian underpasses, but this is the only vehicle underpass I've seen built like this.

Another (somewhat less) unusual design is the concrete arch underpass on Dear Park Road just east of Port Angeles. I have no idea why this one wasn't built as a standard bridge.
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Tom958

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Re: Non-standard overpasses
« Reply #49 on: February 20, 2021, 07:30:10 PM »

Back to the culverts.  I noticed that in Victoria, BC there was a railroad that passed under a round culvert.  Now it's a trail.  Sometimes in the 70s, Seattle Times cartoonist Alan Pratt drew a proposed solution to traffic problems.  The first panel was an exaggerated spaghetti interchange, and panel two was the same interchange, but built with culverts.  The logic was that since culverts are so common, they must be cheaper, and if only the state could build highways with all culverts, they would be affordable.  With the Seattle Times archive available online, I've been trying to find this cartoon, with no luck.

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