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Old May 4th, 2016, 07:25 PM   #11541
ChrisZwolle
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I-55, Chicago

The I-55 / Lake Shore Drive (US 41) interchange reconstruction.


I-55/Lake Shore Dr. Interchange Construction by Illinois Department of Transportation, on Flickr


I-55/Lake Shore Dr. Interchange Construction by Illinois Department of Transportation, on Flickr


I-55/Lake Shore Dr. Interchange Construction by Illinois Department of Transportation, on Flickr
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Old May 4th, 2016, 10:27 PM   #11542
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I've been on LSD once, it was 2 years ago. I always felt that it should be a freeway and not a 40 MPH parkway kind of thing.
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Old May 4th, 2016, 10:37 PM   #11543
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Quote:
Originally Posted by Buffaboy View Post
I've been on LSD once
Selective quoting is fun
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Old May 4th, 2016, 10:47 PM   #11544
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Quote:
Originally Posted by Buffaboy View Post
I saw that on AARoads and thought it was a good plan, but unlikely to happen.

Nexis what is your opinion of an I-78 tunnel under Manhattan with an exit on the east and west side?
The Cost and complexity of a tunnel would outweigh the savings from decreased congestion. The Canal Street corridor is a complex area to tunnel with all the subway lines and soil conditions...

Quote:
Originally Posted by mcarling View Post
Tunnel boring costs are going down and Brooklyn land values are going up. Eventually it will be economically compelling.
The ROW that would be freed up is probably worth at least 10 billion if not more...
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Old May 5th, 2016, 01:13 AM   #11545
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Quote:
Originally Posted by Buffaboy View Post
I've been on LSD once
Is it better or worse than a mushrooms trip?
Quote:
Originally Posted by Nexis View Post
The ROW that would be freed up is probably worth at least 10 billion if not more...
IIRC rail tunnels of that type are estimated at ~$1 bn/mile. This makes me wonder how much more expensive a road tunnel would be, and whether the project would pencil out, based on selling development options along the current ROW.
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Old May 5th, 2016, 01:29 AM   #11546
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Quote:
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The Cost and complexity of a tunnel would outweigh the savings from decreased congestion. The Canal Street corridor is a complex area to tunnel with all the subway lines and soil conditions...
What about a deep-bore no-exit tunnel? Sort of a bypass directly to either Brooklyn or Queens? Or even out towards Nassau? Take the load off of the LIE.
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Old May 5th, 2016, 01:38 AM   #11547
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Quote:
Originally Posted by hammersklavier View Post
Is it better or worse than a mushrooms trip?

IIRC rail tunnels of that type are estimated at ~$1 bn/mile. This makes me wonder how much more expensive a road tunnel would be, and whether the project would pencil out, based on selling development options along the current ROW.
Wait wha? You can take a trip on a mushroom down the LSD in Chicago? Wasn't aware of that (and no I know nothing about the other one, it is scary).

Anyway...I don't want to get too off topic!
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Old May 5th, 2016, 01:51 AM   #11548
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Quote:
Originally Posted by 00Zy99 View Post
What about a deep-bore no-exit tunnel? Sort of a bypass directly to either Brooklyn or Queens? Or even out towards Nassau? Take the load off of the LIE.
It would be expensive , the Brooklyn and Queens side would be very complex...due to the various Redevelopment plans underway which are turning the former Industrial areas into Residential...
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Old May 5th, 2016, 06:07 AM   #11549
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Quote:
Originally Posted by Buffaboy View Post
Wait wha? You can take a trip on a mushroom down the LSD in Chicago? Wasn't aware of that
Sounds like you were on LSD in more than one kind of way!
Quote:
(and no I know nothing about the other one, it is scary).
From what I hear, once you ingest it, LSD never leaves your body. Other kinds of cactus juice

are safer.
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Old May 5th, 2016, 12:19 PM   #11550
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I-35 Austin, TX

Plans have been unveiled for a project to add 3 more direct connectors to the I-35 / US 183 interchange in Austin, Texas.

The current interchange features only 2 direct connectors, south to west and vice versa. Other turns will need to use the frontage roads. This project will add 3 more direct connectors;

* I-35 southbound to US 183 southbound
* US 183 northbound to I-35 northbound
* I-35 southbound to US 183 northbound

The project cost is $ 204 million. The project is scheduled to start in fall 2017 and will be completed by 2020.

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Old May 5th, 2016, 10:18 PM   #11551
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North Carolina

North Carolina has requested two new Interstate numbers in the state;

* I-36: would run across US 70 from Garner (near Raleigh) to Havelock, via Goldsboro and New Bern. The proposed route is approximately 137 miles long.
* I-89: would run across US 64 and US 17 from Raleigh to the Virginia border south of Norfolk. The proposed route is approximately 179 miles long.
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Old May 5th, 2016, 11:01 PM   #11552
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odd choices!

As for I-89
Quote:
The State of North Carolina has coordinated with the Commonwealth of Virginia and they concur with the proposed I-89 route number. While the I-89 route designation is utilized in the states of New Hampshire and Vermont, it is requested due to the increasing difficulty in identifying an Interstate number that meets the criteria and is not currently in use. Confusion between other occurrences of the I-89 route is unlikely due to a significant separation of the Interstate Routes. Additionally, adding another current Interstate route that is non-continuous is not a unique occurrence. As individual portions of the proposed alignment are constructed or upgraded to interstate standards, separate AASHTO applications requesting the addition of those portions to the interstate system will be submitted for review.
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Old May 6th, 2016, 06:39 AM   #11553
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Dallas horseshoe project construction progress












http://dallashorseshoe.com/aerial-photos-april-2016/
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Old May 6th, 2016, 04:37 PM   #11554
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However this would be the first time of a North-South duplication, all other instances (I-76, I-84, I-86, I-88) are East-West

In addition to I-36 (which should have been I-38 IMO, so Caltrans would have to renumber I-238) and the Southern I-89, there's also a request for I-14, this time by Texas.
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Old May 7th, 2016, 02:48 AM   #11555
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Does it at least run mostly north and south and exist east of 85?

I can see the logic, I've always strongly felt numbers should reflect corridors not segments. This keeps things simple and respects the main intent of the numbering system. Otherwise you end up with too many unique numbered roads and exhaust the good ones, creating a mess. E.G a potential Houston to Austin interstate would be best signed as I-12.
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Old May 7th, 2016, 04:04 AM   #11556
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Quote:
Originally Posted by zaphod View Post
Does it at least run mostly north and south and exist east of 85?
I'm not sure even the I-495 portion is more n-s than e-w. But the bit north of Elizabeth City would be, I guess.

Most of proposed I-89 it is east of I-95, and more e-w than n-s. It's also hard to claim 'diagonal' for it - it is significantly more e-w than n-s. But I guess it is roughly perpendicular to I-26, and roughly parallel to I-85.

NC have previously requested I-44 for this corridor.
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Old May 7th, 2016, 06:47 AM   #11557
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Why don't they just classify it as a state route? Intrastate interstates are so strange...
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Old May 7th, 2016, 12:38 PM   #11558
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I-89 isn't an intrastate interstate - it will cross a state line (unlike I-36). And the whole concept of intrastate interstates being oxymoronic relies on a misunderstanding of the concept behind interstates - it's the network that is interstate, not the highways.

I don't see why they should classify it as a state route - both corridors are already US routes, and state routes are lower down the pecking order. While the numbers sought aren't great, there's no reason why these corridors shouldn't be added to the interstate network (ie raised up a level), and signed as interstates once they meet the geometric requirements.
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Old May 7th, 2016, 08:56 PM   #11559
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I-405 in Bellevue, Washington:







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Old May 8th, 2016, 11:20 PM   #11560
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There always seems to be so much vegetation along the roads in Seattle. I wish we could say that about Buffalo.
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