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Author Topic: Updated FHWA Interstate Mileage Log  (Read 824 times)

bob7374

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Updated FHWA Interstate Mileage Log
« on: January 26, 2014, 10:30:26 PM »

From a look at the FHWA's website today, it appears they've updated the information on their interstate mileage log tables as of 12/31/13. It does include mileage for all new 2di interstates approved of last year, including I-2, I-69 (plus I-69E and I-69C) in Texas and I-49 in Missouri and I-22 as well. Their 3di table (Table 2) has newer information as well, adding mileage for I-495, I-785 in NC, but some of the information is old, still listing the Maine Turnpike mileage for I-495, for example, or missing, where is I-781 in NY? I also cannot see how they derived the mileage for I-74 in NC.

You can judge for yourself how accurate the tables are, starting with Table 1:
http://www.fhwa.dot.gov/reports/routefinder/table1.cfm
The other tables links are at the bottom of the page.
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1

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Re: Updated FHWA Interstate Mileage Log
« Reply #1 on: January 26, 2014, 10:52:10 PM »

So I-99 is not in New York yet?
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Clinched:
I-88, I-290 (MA), I-291 (MA)
MA 125, 129A, 213
NY 96B, 495
NJ 90, 495
NH 97

Interstates traveled: 75 81 84 85 87 88 90 91 93 95 278 285 290 291 393 495 676

US traveled: 1 1BYP 3 4 5 6 11 13 19 20 29 30 78 80 202 278

Duke87

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Re: Updated FHWA Interstate Mileage Log
« Reply #2 on: January 26, 2014, 11:04:20 PM »

So I-99 is not in New York yet?

Nope, no movement on that. I'm guessing it won't be until the freeway between Williamsport and Bellefonte is finished... so, give it 20 years at least.
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NE2

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Re: Updated FHWA Interstate Mileage Log
« Reply #3 on: January 26, 2014, 11:04:47 PM »

List of changes from the previous version:
*Many more cities listed
*I-2 added
*I-22 added
*I-26 added
*I-40 realigned in Oklahoma City (added 0.7 mi)
*I-49 MO added
*I-64 MO extended
*I-69 IN extended, KY MS TN TX added
*I-73 extended
*I-74 NC extended
*I-85 realigned in Greensboro (subtracted 2.7 mi)
*I-86 NY extended
*I-99 extended
*I-140 NC added
*I-164 IN deleted (despite still officially existing west of US 41)
*I-181 TN cut back to only west of I-81 (this is actually I-26 now - I-26 TN is also missing some mileage beyond what's listed as I-181)
*I-215 NV added
*I-295 FL extended
*I-295 DC truncated
*I-295 ME duplicate entry created; neither is correct
*I-355 IL extended
*I-369 Texas added
*I-370 MD truncated
*I-376 PA extended
*I-485 NC extended
*I-495 NC added
*I-520 GA/SC extended
*I-540 AR truncated (they probably forgot to take into account the I-40 overlap in the old version)
*I-540 NC extended
*I-580 NV extended
*I-685 AL added
*I-695 DC extended
*I-785 NC added
*I-795 NC added
*I-840 NC added

bassoon1986

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Re: Updated FHWA Interstate Mileage Log
« Reply #4 on: January 27, 2014, 04:15:45 PM »

Louisiana is missing the new open 18 miles of I-49
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rschen7754

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Re: Updated FHWA Interstate Mileage Log
« Reply #5 on: January 28, 2014, 03:16:58 AM »

I can't tell what happened to I-210 CA, considering that the old part from I-10 to SR 57 has been removed by Caltrans.
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NE2

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Re: Updated FHWA Interstate Mileage Log
« Reply #6 on: January 28, 2014, 03:18:24 AM »

I can't tell what happened to I-210 CA, considering that the old part from I-10 to SR 57 has been removed by Caltrans.
It hasn't been removed by FHWA, so nothing happened.

andy3175

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Re: Updated FHWA Interstate Mileage Log
« Reply #7 on: January 30, 2014, 09:28:49 AM »

I can't tell what happened to I-210 CA, considering that the old part from I-10 to SR 57 has been removed by Caltrans.
It hasn't been removed by FHWA, so nothing happened.

At this point, I think it's fair to say that SR 57 between I-10 and I-210/SR 210 remains I-210 in the eyes of FHWA.

Regards,
Andy
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Andy

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andy3175

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Re: Updated FHWA Interstate Mileage Log
« Reply #8 on: January 30, 2014, 09:29:50 AM »

List of changes from the previous version

Thank you for taking the time to figure out the changes and posting them here, NE2. It was very helpful!

Regards,
Andy
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bob7374

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Re: Updated FHWA Interstate Mileage Log
« Reply #9 on: January 31, 2014, 10:19:04 PM »

I think I have a partial explanation of the FHWA's total for I-74 mileage in NC. If you take the three sections currently signed as I-74: From the VA line to US 52, from Exit 65 in High Point to I-73 in Randleman, and from Alt 74/Bus 74 east of Maxton to NC 41, you get a total of around 57 miles, not the 53.4 listed. However, my 57 includes about 4.5 miles where it is signed with I-77, take that away, as they do (partly) with I-73, and you get around 53. This doesn't explain why they count only 16.3 miles for shared mileage with I-73. The total should be around 55 miles. By looking at the mileage of the different segments signed I-73/I-74 over the years, you only get around 16 miles if you include the original segment that ran from US 220 Exit 51 to 39 (12 miles) and the last segment signed, from Exit 76 to 80, the 4 miles north of Asheboro to where the two routes split.

So the log entry for I-74 should look something like this (counting the Forsyth County section that is approved, but not signed):
I-74 NC  122 miles  -  62.5 (I-74 only)  (w/ I-73 55 miles) (w/ I-77 4.5 miles)
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TheStranger

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Re: Updated FHWA Interstate Mileage Log
« Reply #10 on: February 01, 2014, 05:00:40 PM »

I can't tell what happened to I-210 CA, considering that the old part from I-10 to SR 57 has been removed by Caltrans.
It hasn't been removed by FHWA, so nothing happened.

At this point, I think it's fair to say that SR 57 between I-10 and I-210/SR 210 remains I-210 in the eyes of FHWA.

Regards,
Andy

I don't know if other states have this issue, but it fascinates me that California has multiple situations of signage/designations conflicting with FHWA Interstate milage listings:

- the north terminus of I-110
- where I-210 currently ends
- the very existence of I-305
- I-80's post-1968 west terminus as an interstate route

Not sure if the spur segment of the San Bernardino Freeway (former US 60/70/99) between the San Bernardino Split and I-5 is in this awkward category as well.
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andy3175

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Re: Updated FHWA Interstate Mileage Log
« Reply #11 on: February 01, 2014, 10:57:34 PM »

I don't know if other states have this issue, but it fascinates me that California has multiple situations of signage/designations conflicting with FHWA Interstate milage listings:

- the north terminus of I-110
- where I-210 currently ends
- the very existence of I-305
- I-80's post-1968 west terminus as an interstate route

Not sure if the spur segment of the San Bernardino Freeway (former US 60/70/99) between the San Bernardino Split and I-5 is in this awkward category as well.

As more I-15 signs appear sporadically to address the segment of SR 15 between I-5 and I-8, you can also add this to that category. I-15 is signed on one advance sign prior to the exit from I-5 south to SR 15 north, on one reassurance sign along northbound after the I-805 interchange, on 39th Street prior to Adams Avenue, and on one advance sign prior to the transition from SR 94 east to SR 15 north. There is also a city-erected I-15 sign at the southern terminus of SR 15 (intersection with 32nd St and Norman Scott Rd). It is unclear is the installation of these I-15 signs are errors or an intended movement toward changing SR 15 to I-15. However, the mileage log does not include the SR 15 mileage on its total I-15 mileage in California.

Regards,
Andy
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jhuntin1

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Re: Updated FHWA Interstate Mileage Log
« Reply #12 on: February 02, 2014, 12:56:04 PM »

No I-41 yet in Wisconsin, but then I'm still confused over whether that got officially approved last year or not.
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