Interstate Parent With Mile Marker for Child

[ethanhopkin14]

I was curious how many instances a parent has a corresponding mile marker (with the same digits in the same order) for a child in the same state as the child.  I am curious how far away from the child is it's matching mile marker and where about it is located (not just mile marker 290 is at mile marker 290).  How many times does the child and mainline mile marker come close to touching?

Also, where are the mile markers for each 2di in each state.  How many times does an interstate not have a mile marker for it's number in each state?

This all came to me because I was thinking about how, despite Texas' size, and that I-20 spends a very long time in Texas, it doesn't have a mile marker 820 to go with it's one child.  Poor thing.  Actually, I-45 and I-35 don't have a mile marker 345 and 635 respectively. 

This is just a fun game.  Yes, I can easily look this up and make a spreadsheet, but talking about it with everyone sounds like more fun to me. 

[roadman65]

I-75 Florida has Exit 275 for an interchange to the north of I-275 in Wesley Chapel, FL. So the MM is pretty close to its junction as well.

[NWI_Irish96]

Indiana has none. One comes very close. The lowest numbered 3di is I-265, and I-65's largest MM is 262.

If you want to consider US highways, US 31 has mile markers 131 and 231. US 36 has a MM 136. US 50 has a MM 150

[roadman65]

I-95 in Florida also has MM 195 and 295. I-10 has a MM 110.

[ethanhopkin14]

Indiana has none. One comes very close. The lowest numbered 3di is I-265, and I-65's largest MM is 262.

If you want to consider US highways, US 31 has mile markers 131 and 231. US 36 has a MM 136. US 50 has a MM 150

I would like to, but the states are very inconsistent on how U.S. Highways are mile marked ranging from just like interstates to not at all. 

[roadman65]

Is California excluded due to it having county mile markers instead of state ones? Cause it has a few on I-5 that come to mind.

[ethanhopkin14]

Is California excluded due to it having county mile markers instead of state ones? Cause it has a few on I-5 that come to mind.

I tend to lean toward exit numbering when it comes to California since it closely resembles mile markers.  Plus, I find the post miles confusing.  For instance, even if there isn't an exit 605 on I-5, I say the approximate location of where mile 605 should be based on the surrounding exit numbering is good enough. 

[JayhawkCO]

Both of Colorado's 3dis have one, and they're both pretty close to the child interstate.

I-25 MM 225 is at the exit for 136th Street in Westminster, about 25 miles from its junction with I-225.
I-70 MM 270 is at the exit for Sheridan Boulevard in Wheat Ridge/Lakeside, about 9 miles from its junction with I-270.

Had C-470/E-470 actually gotten an interstate designation, it would miss having one by about 20 miles, but obviously the children would be a long way away.

In Wyoming:
I-80 MM 180 is near Wamsutter, about 180 miles from its junction with I-180, so it's basically at the halfway point.

Chris

[bassoon1986]

Louisiana just has mile marker 110 on I-10. It doesn't quite make it to 310. I-20 doesn't quite make it to 220 either.


iPhone

[SkyPesos]

Ohio doesn't have any. The closest is I-71's largest mile marker of 247 with I-271. However, if you continue I-71 northeastward to the PA border at Conneaut (like its planned predecessor OH 1), I-71 would interchange with the northern end of I-271 at MM 265, and MM 271 would be around the OH 306 interchange.

If we use kilometers, based on the Wikipedia exit list, The 270 km marker would be just west of the OH 83 interchange on I-70, about 100 km east of the eastern I-270 interchange. 271 km marker would be at the OH 13 interchange on I-71, 84 km south of the I-271 interchange. 275 km marker would be just south of the southernmost OH 25 interchange, 249 km north of the I-275 interchange. 280 km marker would be just east of the I-77 interchange, 163 km east of the I-280 interchange.

[GaryV]

I-75 in MI has mm 375.  It's in the UP, north of the M-48 exit, nearly as far from I-375 as you can get.
Also mm 275, south of Gaylord, pretty far from I-275.

I-94 has mm 194 near I-275.

I-96 is only 192 miles long, so it just misses having a mm 196.

[hotdogPi]

Unless I'm missing something, the lowest-numbered child route in Massachusetts, not counting [number]A, is 190. There are several child state routes, but they're all 2xx.

MA 128 isn't related to MA 28 at all, right? (They used to intersect twice.)

[ilpt4u]

I-155/IL is at I-55 Exit/MM 127, so MM 155 is about 28 miles NE of the Lincoln interchange along 55

I-55's ending mileage at Lake Shore Drive in Chicago is 293.8, posted on the BGS Gantry right before the gore point for LSD/US 41, so that is short of 355, so no dice for I-355, but MM 255 does exist for I-255, which is in the St Louis Metro East in Illinois, and continues across the Mississippi River into Missouri to meet back up with I-55. MM 255 is between the US 30 and US 52 exits in Joliet, along I-55

I-80 only has MMs up to about 162 within IL, so no go for I-180 or I-280

I-90 and 94 have even less miles in IL, so no go on I-190 or I-294

I-72's final mileage is around 182 or 183, depending if it officially ends at I-57 or at the end of the "Feeder" into Champaign via University Ave, but either way it covers I-172, over south of Quincy, IL and across the MS River from Hannibal, MO. MM 172 is about 10 miles east of the I-57/I-72/University Ave Feeder interchange

I know I-74 doesn't cover 474 miles within IL, so a no go for I-474

I feel like that covers the 3DIs in IL

None of I-88's "Spurs" are signed as x88s, and even if one was signed as I-188, the last MM on "present" I-88 is 140 or 141...and even if in some parallel universe I-88 overtakes the Eisenhower, that only gets it another 14-15 miles (whether *that* I-88 would end at "The Circle" or at "The Post Office" it still would only get up to about MM 155 or 156, still short of 188).

The I-88 Spurs to which I am referring are:
1) The Current IL 56/Old Toll US 30/Old E-W Tollway original Western Terminus in Sugar Grove that exits Present-Day I-88 at Exit 113
2) The Old Toll US 30 transition from the Tri-State to E-W Tollway ramps, that is presently signed as "To I-88 West" Northwest-bound and "To I-294 South" Southeast-bound just before the current eastern terminus of I-88, at Exit 138
3) The Trumpet at Exit 36 along the "Free" IDOT section of I-88 near Sterling, which is a short unnumbered Freeway Trumpet between US 30 and I-88, that Wal-Mart just conveniently has a Distribution Center located at the US 30 end of. I assume if the 88 Spur to Clinton ever had been built, it would have departed I-88 at this Trumpet. If it were along the ISTHA segment of I-88, I would have thought this Trumpet originally a Toll Booth Trumpet, like the DeKalb and Dixon exits, but nope: This is IDOT's baby!

[KCRoadFan]

I-35 isn't nearly long enough, in either Missouri or Kansas, for MM 435. (In fact, the combined mileage in both states still comes up 85 miles short of that!) However, on I-35 in Kansas, MM 135 is just east of Emporia (I-35 runs east-west along that stretch), while MM 235 is right at the state line in KC.

As for Missouri, I-70 is 20 miles too short for MM 270; however, MM 170 corresponds to the Danville exit (at the top of that big hill going east, past the Loutre River), which is 68 miles west of the I-170 exit.

If you consider the original number from the south section of I-270 - namely, I-244 - then MM 244 along I-44 is between St. Clair and the US 50 exit east of Union, 33 miles west of the I-270 (formerly I-244) interchange. Continuing with the St. Louis-area freeways, I-55 doesn't have MM 255 in Missouri (about 45 miles too short for that), but it does in Illinois - up in the Chicago area (Joliet), so pretty far from I-255. Missouri does have MM 155 along I-55, near Ste. Genevieve (again, rather far from I-55, which is down in the Bootheel at Exit 17).

[SkyPesos]

Indiana has none. One comes very close. The lowest numbered 3di is I-265, and I-65's largest MM is 262.

If you want to consider US highways, US 31 has mile markers 131 and 231. US 36 has a MM 136. US 50 has a MM 150

Interestingly, if km is used, the southern junction of I-469 would be at around I-69's km marker 477, only 8 km (5 mi) north of marker 469.

[KCRoadFan]

This all came to me because I was thinking about how, despite Texas' size, and that I-20 spends a very long time in Texas, it doesn't have a mile marker 820 to go with it's one child.  Poor thing.  Actually, I-45 and I-35 don't have a mile marker 345 and 635 respectively. 

On the other hand, I-10 in Texas is long enough for MM 410 and MM 610 - and also 810 if such an interstate actually existed in Texas. (Come on, TXDOT, do it - just call the Sam Houston Tollway I-810, to go along with "Beltway 8", and maybe while you're at it, make the Anderson Loop in San Antonio I-210 to match the city's area code!)

[KCRoadFan]

I-90 in New York (the Thruway):

MM 190 is between Exit 28 (Fonda) and Exit 29 (Canajoharie).
MM 290 is, ironically enough, right at the exit for I-690 in Syracuse (Exit 39), which there is no corresponding mile marker for.
MM 390 is at Exit 48 (Batavia), not too far from the exit for I-390, which is 28 miles east.
MM 490 is between Exit 60 (Westfield) and Exit 61 (Ripley), just six miles east of the Pennsylvania line.

[vdeane]

Believe it or not, there is actually a route in Canada this works for.  A-20 in Québec has km marker 520 east of Rivière-du-Loup.  A-520, on the other hand, is near km 56.

[SkyPesos]

G1504 in China (was G1501 before a mass child route renumbering in 2017 as seen in the Wikipedia exit list below, which haven't been edited yet) is pretty close to km marker 1504 on G15. Not sure how close it is, as the "(55)" is from G1504's mileage. In fact, because of how auxiliary expressways in China is numbered (in the case of G15, G1501-1508 for beltways, 1511-1517 for spurs, 1521-1523 for bypasses), all of them correspond to a km marker on G15.

[clong]

In Alabama:
I-65 MM165 is just south of Montgomery (near the Hyundai plant), I-165 junction is Exit 9.

Nothing else really gets close.

[DTComposer]

For I-5 in California (approximate, based on exit numbers):

Exit 105 is Main Street/17th Street in Santa Ana - is the closest - were I-105 actually to reach I-5, it would be at about mile 122
Exit 205 is Frazier Mountain Park Road right at the Los Angeles/Kern County Line; I-205 is about 250 miles to the north
Exit 305 is Utica Avenue in rural Kings County; I-305 (hidden) is about 210 miles to the north
Mile 405 (no exit) would be just north of the CA-152 junction; I-405 is about 250 miles to the south
Mile 505 (no exit) is north of Hood-Franklin Road; I-505 is about 50 miles to the north
Mile 605 (no exit) is just north of Willows; I-605 is about 480 miles to the south
There's no I-705, and 796 is the highest mile.

[JayhawkCO]

So far, I've posted two states (Colorado and Wyoming) that have all of their 3dis covered.

I think there are only 5 more for a total of 7.  Correct me if I'm wrong.

Idaho:

I-84 MM 184 is in Jerome County, about 145 miles away from I-84.

Montana:

I-15 MM 115 is just south of Butte, about 9 miles away from I-115.
I-15 MM 315 is in Jerome County, about 37 miles away from I-315.

Utah:
I-15 MM 215 is just south of Nephi, about 84 miles away from its closest connection with I-215.

North Dakota:
I-94 MM 194 is near the Burleigh/Kidder county line, about 38 miles away from I-194.

South Dakota:
I-29 MM 229 is 24 miles south of the North Dakota border, about 154 miles away from I-229.
I-90 MM 190 is near Murdo, about 125 miles from I-190.

Bonus: Closest east of the Mississippi

Vermont:
I-89 would need 59 more miles for MM 189.

Chris

[TheHighwayMan3561]

South Dakota:
I-29 MM 229 is 24 miles south of the North Dakota border, about 154 miles away from I-229.

There's also a MM 190 on I-90 near Murdo, about 125 miles from I-190 in Rapid.

[JayhawkCO]

South Dakota:
I-29 MM 229 is 24 miles south of the North Dakota border, about 154 miles away from I-229.

There's also a MM 190 on I-90 near Murdo, about 125 miles from I-190 in Rapid.

Thanks for catching that.  Don't know why I didn't have that in mind (especially since I've clinched it).  Updating my post with your info.

Chris

[SkyPesos]

Bonus: Closest east of the Mississippi

Vermont:
I-89 would need 59 more miles for MM 189.

For an east of the Mississippi state with a lot of 3di, Florida is pretty close too. Mileposts exist for 110, 175, 195, 275, 295 and 375 on their corresponding parent interstate. 395 is a near miss, as I-95's highest milepost in the state is 382. The only one left after those is 595.