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National Boards => General Highway Talk => Topic started by: BridgesToIdealism on July 26, 2021, 07:09:51 PM

Title: 3DIs in multiple states
Post by: BridgesToIdealism on July 26, 2021, 07:09:51 PM
This may have been discussed before, but I can't find a recent thread on it. What 3DIs enter multiple states? I can't think of too many examples. The only ones that come to mind immediately are the Capital Beltway, I-470 in Wheeling, and I-275 in Cincinnati.
Title: Re: 3DIs in multiple states
Post by: hotdogPi on July 26, 2021, 07:13:02 PM
195: MA/RI
295: MA/RI
395: MA/CT
684: NY/CT/NY
Title: Re: 3DIs in multiple states
Post by: OCGuy81 on July 26, 2021, 07:25:56 PM
I-205 in Oregon and Washington
Title: Re: 3DIs in multiple states
Post by: Great Lakes Roads on July 26, 2021, 07:28:27 PM
I-275: KY/IN/OH
I-471: KY/OH
I-270: IL/MO
I-255: IL/MO
I-480: NE/IA
I-680: NE/IA
I-280: IL/IA
I-129: IA/NE
I-435: MO/KS
I-635: MO/KS
I-670: MO/KS
I-269: MS/TN
I-265: IN/KY *not signed yet*
I-155: MO/TN
Title: Re: 3DIs in multiple states
Post by: dfilpus on July 26, 2021, 08:57:00 PM
I-520: GA/SC
Title: Re: 3DIs in multiple states
Post by: SkyPesos on July 26, 2021, 09:03:19 PM
I-535  :bigass:
Title: Re: 3DIs in multiple states
Post by: kurumi on July 26, 2021, 10:07:18 PM
The dry-land crossings are more rare:
I-435 KC
I-670 KC
I-269
I-287
I-684
I-195 RI/MA
I-295 RI/MA
I-395 CT/MA
Title: Re: 3DIs in multiple states
Post by: JayhawkCO on July 26, 2021, 11:03:20 PM
Also:
I-295 DC/MD
I-395 VA/DC
I-295 DE/NJ/PA
I-676 PA/NJ
I-278 NY/NJ

Chris
Title: Re: 3DIs in multiple states
Post by: ilpt4u on July 26, 2021, 11:10:37 PM
I-294 used to cross into Indiana, when I-94 followed the Skyway and I-90 followed with I-80 into Illinois
Title: Re: 3DIs in multiple states
Post by: Roadgeekteen on July 26, 2021, 11:35:52 PM
A lot of them do.
Title: Re: 3DIs in multiple states
Post by: froggie on July 27, 2021, 01:26:55 AM
Quote from: jayhawkco on July 26, 2021, 11:03:20 PM
I-6295 DC/MD

FTFY
Title: Re: 3DIs in multiple states
Post by: cpzilliacus on July 27, 2021, 06:26:30 AM
I-495 MD/VA/DC (much of it overlaps I-95)

I-295 DE/NJ/PA
Title: Re: 3DIs in multiple states
Post by: JayhawkCO on July 27, 2021, 08:49:47 AM
Quote from: froggie on July 27, 2021, 01:26:55 AM
Quote from: jayhawkco on July 26, 2021, 11:03:20 PM
I-6295 DC/MD

FTFY

Thanks.  Was doing it quickly from memory.

Chris
Title: Re: 3DIs in multiple states
Post by: SkyPesos on July 27, 2021, 09:00:55 AM
Quote from: froggie on July 27, 2021, 01:26:55 AM
Quote from: jayhawkco on July 26, 2021, 11:03:20 PM
I-6295 DC/MD

FTFY
DC/MD is correct for I-495 if you count the couple hundred feet I-495 is in DC, but he forgot to add VA.
Title: Re: 3DIs in multiple states
Post by: Jim on July 27, 2021, 09:02:45 AM
Not sure how many have been listed, but I count 28 of them in TM data.
Title: Re: 3DIs in multiple states
Post by: JayhawkCO on July 27, 2021, 09:04:15 AM
Quote from: SkyPesos on July 27, 2021, 09:00:55 AM
Quote from: froggie on July 27, 2021, 01:26:55 AM
Quote from: jayhawkco on July 26, 2021, 11:03:20 PM
I-6295 DC/MD

FTFY
DC/MD is correct for I-495 if you count the couple hundred feet I-495 is in DC, but he forgot to add VA.

Different highway.  Capital Beltway was listed in the OP.

Chris