71

[TheHighwayMan3561]

I-35: "Is it one route, or three?"

[I-55]

I-35: "Is it one route, or three?"

I-69: "Is it one route, or four?"

[epzik8]

Also, I-97: two digits 'cause why not!

It connects Baltimore with Annapolis and the Bay Bridge via US 50, serves as part of the alternate route to Richmond that includes MD 3 and US 301, and passes right by BWI.

[Hot Rod Hootenanny]

Why are those highways so small I love those highways but they're so small. Why is that?

Because of Tiny Elvis.

[thenetwork]

Why is I-H201?

<mic drop>

[skluth]

Also, I-97: two digits 'cause why not!

It connects Baltimore with Annapolis and the Bay Bridge via US 50, serves as part of the alternate route to Richmond that includes MD 3 and US 301, and passes right by BWI.

By that logic, I-196 in MI, both I-155's in IL and MO/TN, I-380 in IA, I-580 in CA, I-335 in KS, and probably several other 3DIs should be two digits. All are just as useful with multiple local purposes and have destinations well beyond their endpoints. Ben114 stated it more succinctly than I just did, but he's right. The only apparent reason is "why not?"

[sprjus4]

I-97 has a purpose and definitely should be an interstate highway, it just does not need to have a 2di number. It should be a I-x95.

[ethanhopkin14]

Also, I-97: two digits 'cause why not!

It connects Baltimore with Annapolis and the Bay Bridge via US 50, serves as part of the alternate route to Richmond that includes MD 3 and US 301, and passes right by BWI.

By that logic, I-196 in MI, both I-155's in IL and MO/TN, I-380 in IA, I-580 in CA, I-335 in KS, and probably several other 3DIs should be two digits. All are just as useful with multiple local purposes and have destinations well beyond their endpoints. Ben114 stated it more succinctly than I just did, but he's right. The only apparent reason is "why not?"

Yes, why not!  I love little anomalies like that.  Why does I-17 not start at mile 0 (there is a historical reason I know, but a lot of time has passed to correct it and Arizona just won't)?  Why does I-19 have kilometer markers? These things are dumb, but they are kinda cool too!

[sprjus4]

Also, I-97: two digits 'cause why not!

It connects Baltimore with Annapolis and the Bay Bridge via US 50, serves as part of the alternate route to Richmond that includes MD 3 and US 301, and passes right by BWI.

By that logic, I-196 in MI, both I-155's in IL and MO/TN, I-380 in IA, I-580 in CA, I-335 in KS, and probably several other 3DIs should be two digits. All are just as useful with multiple local purposes and have destinations well beyond their endpoints. Ben114 stated it more succinctly than I just did, but he's right. The only apparent reason is "why not?"

Yes, why not!  I love little anomalies like that.  Why does I-17 not start at mile 0 (there is a historical reason I know, but a lot of time has passed to correct it and Arizona just won't)?  Why does I-19 have kilometer markers? These things are dumb, but they are kinda cool too!

Much like I-30 and I-45 both being under 400 miles each yet still holding the -0 and -5 in their number.

[webny99]

The only appropriate response 

[Roadgeekteen]

Also, I-97: two digits 'cause why not!

It connects Baltimore with Annapolis and the Bay Bridge via US 50, serves as part of the alternate route to Richmond that includes MD 3 and US 301, and passes right by BWI.

By that logic, I-196 in MI, both I-155's in IL and MO/TN, I-380 in IA, I-580 in CA, I-335 in KS, and probably several other 3DIs should be two digits. All are just as useful with multiple local purposes and have destinations well beyond their endpoints. Ben114 stated it more succinctly than I just did, but he's right. The only apparent reason is "why not?"

Yes, why not!  I love little anomalies like that.  Why does I-17 not start at mile 0 (there is a historical reason I know, but a lot of time has passed to correct it and Arizona just won't)?  Why does I-19 have kilometer markers? These things are dumb, but they are kinda cool too!

Much like I-30 and I-45 both being under 400 miles each yet still holding the -0 and -5 in their number.

I-45 is major because it connects Dallas and Houston. I-30 should be I-32 or I-28.

[ilpt4u]

I-30 should be I-32 or I-28 I-57.

FTFY

[webny99]

I-35: "Is it one route, or three?"

I'm counting three:

-Laredo, TX to Hillsboro, TX
-Denton, TX to Burnsville, MN
-Columbus, MN to Duluth, MN

[GaryV]

Also, I-97: two digits 'cause why not!

It connects Baltimore with Annapolis and the Bay Bridge via US 50, serves as part of the alternate route to Richmond that includes MD 3 and US 301, and passes right by BWI.

By that logic, I-196 in MI, both I-155's in IL and MO/TN, I-380 in IA, I-580 in CA, I-335 in KS, and probably several other 3DIs should be two digits. All are just as useful with multiple local purposes and have destinations well beyond their endpoints. Ben114 stated it more succinctly than I just did, but he's right. The only apparent reason is "why not?"

For I-196, you need to know the history.  I-96 was originally going to loop from Detroit thru Grand Rapids, then follow what is now I-196 past Holland to I-94 at Benton Harbor.  I-196 went to Muskegon.  However, when the segment from Holland to the east side of Grand Rapids was delayed, they swapped the designations so wb I-96 didn't mysteriously turn into I-196 on the east side of GR.

[TheHighwayMan3561]

I-35: "Is it one route, or three?"

I'm counting three:

-Laredo, TX to Hillsboro, TX
-Denton, TX to Burnsville, MN
-Columbus, MN to Duluth, MN

I favor the "one route"  view following the 35Es, with separate 35Ws. I've even seen one poster say he views all of it together as one route.

[sprjus4]

^

I'd say they're all together as one route.

[Hwy 61 Revisited]

I-35: "Is it one route, or three?"

I'm counting three:

-Laredo, TX to Hillsboro, TX
-Denton, TX to Burnsville, MN
-Columbus, MN to Duluth, MN

I favor the "one route"  view following the 35Es, with separate 35Ws. I've even seen one poster say he views all of it together as one route.

I would say I-35 goes to I-35E through Dallas, then I-35W through Minneapolis.

[SeriesE]

I believe the only reason those freeways got a 2 digit number is that they cross state lines, hence being an actual interstate so 3dis aren't appropriate.

[hotdogPi]

I believe the only reason those freeways got a 2 digit number is that they cross state lines, hence being an actual interstate so 3dis aren't appropriate.

Then why is I-395 in MA and CT a 3di and not a 2di? It crosses a state line and is a direct corridor.

[SectorZ]

I believe the only reason those freeways got a 2 digit number is that they cross state lines, hence being an actual interstate so 3dis aren't appropriate.

There are 25 multi-state three digit interstates, three of which go into three (counting DC as a 'state'). Not a rare circumstance.

[US 89]

I would say I-35 goes to I-35E through Dallas, then I-35W through Minneapolis.

On what basis? In both cases the exit numbers continue through on I-35E.

[SeriesE]

I believe the only reason those freeways got a 2 digit number is that they cross state lines, hence being an actual interstate so 3dis aren't appropriate.

There are 25 multi-state three digit interstates, three of which go into three (counting DC as a 'state'). Not a rare circumstance.

True, but this gets used as a justification by the politicians to get a 2 digit route number on the corridor.

[sprjus4]

^

NC I-42 could be an I-x40.
VA I-66 could be an I-x81.
MD I-97 could be an I-x95.
FL I-4 could be an I-x95.
TX I-2 could be an I-x69 (or I-69S)
TX I-27 could be an I-x40.
GA I-16 could be an I-x95 (this is pushing it).

[Mapmikey]

I believe the only reason those freeways got a 2 digit number is that they cross state lines, hence being an actual interstate so 3dis aren't appropriate.

Then why is I-395 in MA and CT a 3di and not a 2di? It crosses a state line and is a direct corridor.

Had this been put in the interstate system in the 50s or 60s it probably could have been number 95W.

[Hwy 61 Revisited]

I would say I-35 goes to I-35E through Dallas, then I-35W through Minneapolis.

On what basis? In both cases the exit numbers continue through on I-35E.

Based on which is more well-known.