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Author Topic: Interstates that violate Interstate Highway Standards  (Read 3517 times)

X99

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Interstates that violate Interstate Highway Standards
« on: March 24, 2019, 04:28:56 PM »

This came from "Threads you'll never see on aaroads.com"
Most 2dis violate standards at one point or another:

10, 20, 40: at-grade intersections in very rural areas
93: one lane in each direction through Franconia Notch
95: outdated design through NYC; several others throughout the Northeast also have outdated designs
5, 64: drawbridges
One more I can think of: I-180 in Cheyenne, Wyoming. Only standard it meets is number of lanes.
Any others you guys can think of?
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csw

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Re: Interstates that violate Interstate Highway Standards
« Reply #1 on: March 24, 2019, 05:51:10 PM »

In before Breezewood

froggie

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Re: Interstates that violate Interstate Highway Standards
« Reply #2 on: March 24, 2019, 06:18:01 PM »

Fairly certain we've had multiple threads on this subject.
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X99

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Re: Interstates that violate Interstate Highway Standards
« Reply #3 on: March 24, 2019, 06:20:39 PM »

Fairly certain we've had multiple threads on this subject.
I said this came off the threads you'll never see page.
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Re: Interstates that violate Interstate Highway Standards
« Reply #4 on: March 24, 2019, 07:56:00 PM »

Fairly certain we've had multiple threads on this subject.
I said this came off the threads you'll never see page.

Nobody listed the topic of this thread as a thread you'll never see; it was just a side discussion.
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Flint1979

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Re: Interstates that violate Interstate Highway Standards
« Reply #5 on: March 24, 2019, 07:57:16 PM »

I-75 on the Mackinac Bridge and on 5he exit to itself in downtown Detroit. Nothing else I can really think of in Michigan.
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Beltway

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Re: Interstates that violate Interstate Highway Standards
« Reply #6 on: March 24, 2019, 08:38:45 PM »

I-73 at Asheboro, NC
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Scott M. Kozel
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Re: Interstates that violate Interstate Highway Standards
« Reply #7 on: March 24, 2019, 09:13:24 PM »

This came from "Threads you'll never see on aaroads.com"
Most 2dis violate standards at one point or another:

10, 20, 40: at-grade intersections in very rural areas
93: one lane in each direction through Franconia Notch
95: outdated design through NYC; several others throughout the Northeast also have outdated designs
5, 64: drawbridges
One more I can think of: I-180 in Cheyenne, Wyoming. Only standard it meets is number of lanes.
Any others you guys can think of?

Not a 2di

But anyway, I'd say "most" is a bit of an exaggeration. We've only come up with a few 2dis that break rules, out of the many that exist.
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Re: Interstates that violate Interstate Highway Standards
« Reply #8 on: March 24, 2019, 09:18:18 PM »

I-73 at Asheboro, NC
How?

I-74 between I-40 and High Point does not meet shoulder standards. FHWA approved the signing of the route after misunderstanding a memo sent to them on the route by NCDOT, so they relented with the agreement that NCDOT put in place a project to upgrade the shoulders. Guess which project was not listed among those for I-74 in the Draft 2020-2029 STIP?

Beltway

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Scott M. Kozel
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Re: Interstates that violate Interstate Highway Standards
« Reply #10 on: March 24, 2019, 09:22:05 PM »

I-81 in the Thousand Islands has a 2-lane bridge.

The I-10 at-grades in Texas are interesting because at least 3 of them are signed for people to access I-10 at them...
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Re: Interstates that violate Interstate Highway Standards
« Reply #11 on: March 24, 2019, 09:27:51 PM »

I-95’s drawbridge wasn’t mentioned (the Woodrow Wilson Bridge).

I assume I-68 through Cumberland, with its 40-mph speed limit, probably violates some standards, though I don’t know which one(s) and I haven’t been through there in a couple of years.
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jeffandnicole

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Re: Interstates that violate Interstate Highway Standards
« Reply #12 on: March 24, 2019, 10:08:25 PM »

I-76 thru Philly in numerous ways. Low bridge heights, lack of shoulders, & 1 lane at one point on 76 EB where the Schuylkill Expressway becomes the Walt Whitman Expressway are 3 examples.
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Re: Interstates that violate Interstate Highway Standards
« Reply #13 on: March 24, 2019, 10:17:24 PM »

I-95’s drawbridge wasn’t mentioned (the Woodrow Wilson Bridge).

And for that matter, the I-278 Hunt's Point drawbridge in the Bronx. 
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Beltway

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Re: Interstates that violate Interstate Highway Standards
« Reply #14 on: March 24, 2019, 10:24:20 PM »

I-95’s drawbridge wasn’t mentioned (the Woodrow Wilson Bridge).

I don't see where a justified drawbridge violates Interstate standards, particularly one that has high enough clearance when closed that it only averages one opening per month.
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Scott M. Kozel
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Re: Interstates that violate Interstate Highway Standards
« Reply #15 on: March 25, 2019, 12:19:04 AM »

Most 2dis violate standards at one point or another:

10, 20, 40: at-grade intersections in very rural areas

I think we'll be adding I-11 to that list, at least between Wickenburg and I-40, assuming it's extended over that stretch of US 93.  There are close to 35 ranch turnoffs in that stretch, and there is no way "legit" exits can be justified.  Between Kingman and Hoover Dam, frontage roads with the appropriate exits can be built for those who live along that stretch, but not south of I-40. Too hilly and too many of them.
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Verlanka

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Re: Interstates that violate Interstate Highway Standards
« Reply #16 on: March 25, 2019, 08:21:39 AM »

I-69 in Kentucky could count as being substandard.
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abefroman329

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Re: Interstates that violate Interstate Highway Standards
« Reply #17 on: March 25, 2019, 09:13:01 AM »

I-95’s drawbridge wasn’t mentioned (the Woodrow Wilson Bridge).

I don't see where a justified drawbridge violates Interstate standards, particularly one that has high enough clearance when closed that it only averages one opening per month.
Especially when that bridge was just built within the last, what, decade?  Decade and a half?
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Beltway

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Re: Interstates that violate Interstate Highway Standards
« Reply #18 on: March 25, 2019, 09:34:19 AM »

I-95’s drawbridge wasn’t mentioned (the Woodrow Wilson Bridge).
I don't see where a justified drawbridge violates Interstate standards, particularly one that has high enough clearance when closed that it only averages one opening per month.
Especially when that bridge was just built within the last, what, decade?  Decade and a half?

Opened in 2006 and 2008.
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Scott M. Kozel
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Buck87

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Re: Interstates that violate Interstate Highway Standards
« Reply #19 on: March 25, 2019, 10:06:08 AM »

I-70 in Western PA between the turnpike and I-79
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Re: Interstates that violate Interstate Highway Standards
« Reply #20 on: March 25, 2019, 10:30:18 AM »

I-82 violates numbering standards as well as the SB bridge over the Columbia being 11 foot lanes and no shoulder (not confident about the 11 foot lanes).

I-84 has a gravel service road around mp 26 in the gorge.

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Re: Interstates that violate Interstate Highway Standards
« Reply #21 on: March 25, 2019, 10:32:11 AM »

I-82 violates numbering standards as well as the SB bridge over the Columbia being 11 foot lanes and no shoulder (not confident about the 11 foot lanes).

I-82 is more of a relic number than a violation (i.e. I-99) from when I-84 was I-80N.
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Re: Interstates that violate Interstate Highway Standards
« Reply #22 on: March 25, 2019, 12:31:01 PM »

35E in St. Paul, MN. It's designed as more of a "parkway" with truck restrictions and a lower speed limit. It was a compromise with the area NIMBYS.
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Re: Interstates that violate Interstate Highway Standards
« Reply #23 on: March 25, 2019, 06:27:08 PM »

I wonder how not-up-to-standard I-69E between Kingsville and Harlingen will be with all that King Ranch acreage, as US 77 gets upgraded.
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Re: Interstates that violate Interstate Highway Standards
« Reply #24 on: March 25, 2019, 06:38:41 PM »

I-97 in Maryland for being the shortest 2di.

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