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Old October 4th, 2016, 05:04 AM   #11781
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San Francisco-Oakland Bay Bridge http://www.dot.ca.gov/images/navimag...tr-648x499.jpg
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Old October 4th, 2016, 11:33 PM   #11782
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South Carolina is currently talking about evacuating 1 million people from the coastal areas in anticipation of Hurricane Matthew.

SCDOT is sweeping the crossovers of I-26 in anticipation of a contraflow operation, where all lanes become outbound from Charleston.

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Old October 5th, 2016, 10:51 AM   #11783
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I-15, Utah

The Utah Department of Transportation has completed the $ 252 million 'The Point Project'. I-15 has been widened to 12 lanes from Lehi to Draper.

There is now a 50 mile segment of I-15 from Provo to Salt Lake City with 10+ lanes.


Last edited by ChrisZwolle; October 5th, 2016 at 07:11 PM. Reason: new video URL
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Old October 5th, 2016, 03:37 PM   #11784
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I-20, I-26, I-126 Carolina Crossroads

The #1 priority in South Carolina is the 'Carolina Crossroads' study, which will address congestion and safety on I-20, I-26 and I-126, in particular the heavily substandard I-20/I-26 cloverleaf in Columbia.

http://www.scdotcarolinacrossroads.com/

The whole project, which includes a 10 mile stretch of I-26 through Columbia, is estimated to cost $ 1.3 - 1.5 billion.

Some alternatives are rather interesting, such as a relocation of the exchanges from I-20 to I-26/I-126 and vice versa to the south, making the current cloverleaf just a crossing with no traffic entering or exiting the highway at that location.

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Old October 5th, 2016, 05:40 PM   #11785
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South Carolina

Outbound traffic is already significantly congested on I-26 from Charleston due to the hurricane evacuation. I-26 will go into contraflow operations starting at 3 p.m. today.



A crossover at the endpoint of contraflow near the I-77 interchange at Columbia.
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Old October 5th, 2016, 11:19 PM   #11786
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Contraflow is now in operation on I-26.

It's actually the first time they used this on I-26. It was devised after the chaotic evacuation of Charleston in 1999, when Hurricane Floyd approached. It took 14 - 18 hours to reach Columbia at the time. And the population of the area has grown strongly since then.



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Old October 6th, 2016, 01:51 AM   #11787
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Quote:
Originally Posted by ChrisZwolle View Post

There is now a 50 mile segment of I-15 from Provo to Salt Lake City with 10+ lanes.
]
Wow, that is even longer than "world's busiest" Hwy 401 across Toronto which has only +/- 60 km of >/10 lanes (discounting short 8 lane gap at 409/427)
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Old October 6th, 2016, 05:50 AM   #11788
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The longest collector express is the New Jersey Turnpike now that it has been widened down to Philadelphia.
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Old October 6th, 2016, 06:27 AM   #11789
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Quote:
Originally Posted by Innsertnamehere View Post
The longest collector express is the New Jersey Turnpike now that it has been widened down to Philadelphia.
Sad as it is that so many trees were lost and people were disrupted, take it from me that this project was really necessary. I would spend hours stuck in traffic at the merge of the collector roads when it was up around Princeton/New Brunswick. Now traffic just zips through all the way. A major bottleneck relieved.
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Old October 8th, 2016, 12:31 AM   #11790
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Taken Yesterday - 10/6/16

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Old October 8th, 2016, 12:41 AM   #11791
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Old October 8th, 2016, 11:07 AM   #11792
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Quote:
Originally Posted by ChrisZwolle View Post
The #1 priority in South Carolina is the 'Carolina Crossroads' study, which will address congestion and safety on I-20, I-26 and I-126, in particular the heavily substandard I-20/I-26 cloverleaf in Columbia.

http://www.scdotcarolinacrossroads.com/

The whole project, which includes a 10 mile stretch of I-26 through Columbia, is estimated to cost $ 1.3 - 1.5 billion.

Some alternatives are rather interesting, such as a relocation of the exchanges from I-20 to I-26/I-126 and vice versa to the south, making the current cloverleaf just a crossing with no traffic entering or exiting the highway at that location.
There are also some pretty exotic options for replacing the cloverleaf itself:
http://www.scdotcarolinacrossroads.c...ds_I26_I20.pdf
The naming is a bit funky. 2 is a stackturbine, 4 a cloverstack, 5 a cloverturbine, and 6 a clovermill, pretty much.

Stay safe SC.
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Old October 12th, 2016, 08:39 PM   #11793
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I-95, North Carolina

Hurricane Matthew dumped torrential rains over eastern North Carolina, causing levees to break and a 60 mile stretch of I-95 was shut down yesterday.


I-95 Flooding at MM 18 near Lumberton by NCDOTcommunications, on Flickr


I-95 flooding near Dunn by NCDOTcommunications, on Flickr
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Old October 15th, 2016, 12:11 PM   #11794
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I-435 Kansas City beltway

The Johnson County Gateway project (I-435) near Lenexa, Kansas.

This photo was taken on a stretch with C/D lanes between two freeway-to-freeway interchanges (to I-35 and K-10).

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Old October 16th, 2016, 08:27 PM   #11796
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Now that's an old-fashioned Interstate highway. If it's in good shape, I'd say they should maintain it to preserve that look.
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Old October 16th, 2016, 11:09 PM   #11797
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Preserving it for the sake of aesthetics is massively worse than rebuilding it to modern safety standards. Not enough shoulder space on both sides to clear accidents/get emergency vehicles there in time. Ramps are too tight. Not enough lighting under the bridges. I could go on and on.
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Old October 17th, 2016, 04:31 PM   #11798
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Quote:
Originally Posted by Buffaboy View Post
Now that's an old-fashioned Interstate highway. If it's in good shape, I'd say they should maintain it to preserve that look.
I agree with the spirit of this post.

There is no question that newer designs are better from virtually every perspective, but there is something to be said about the vintage interstate era.

Michigan built a significant portion of its freeway network early, and in some cases in advance of the interstate age. While some of these designs (such as I-94 through Downtown Detroit) are unquestionably dated, some of them are really interesting from a historical perspective.
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Old October 17th, 2016, 05:17 PM   #11799
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This is the freeway-freeway interchange in Grand Rapids pictured above. Any idea what this design is called? I think I've heard a related design, where both mainlines cross over and back, referred to as a 'gothic cross' or 'double diverging diamond' (which is misleading as 'diverging diamond' refers to a completely different interchange).
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Old October 17th, 2016, 06:31 PM   #11800
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I think that's a hybrid...
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