Another pointless thread. :biggrin:
Works for both repeating Interstate numbers and state highways if you can find good examples.
My examples to start us off: I-405 in CA and I-405 OR are in neighboring states, but has 938 miles separating them.
NV 164 and OR 164 are 961 miles apart.
A I-580 is in California and Nevada. As the crow flies they surprisingly aren't exactly far from each other.
As for large identical numbers, LA 3137 and FM 3137 are about 526 miles apart.
Also, the I-110's in Texas and Louisiana are about 905 miles apart.
I-190 and I-290 in NY and MA are separated by about 400 miles.
I-264 KY and VA, about 515 miles apart as the crow flies.
M-26 and OH-26 are about 630 miles apart as the crow flies, probably another 200 or so miles driving wise.
VA-175 in Oak Hall (Chincoteague), Virginia -to- TN-175 in Colliersville, Tennessee (995 miles via North Carolina, 1010 miles if you stay in Virginia)
NC-12 in Atlantic, North Carolina -to- TN-12 in Nashville, Tennessee (712 miles)
MN and ND 42 are 610 miles apart at their closest by straight line.
If you want to count this border, I found MI 222 and MN 222 are 609 miles apart at their closest.
It's 685 miles from the east end of US 26 in Ogallala, NE to IA 26 in Lansing, IA.
I-495 in MA is about 100-150 miles as the crow flies from I-495 in NY (East End) as the crow flies.
I-105 in California and Oregon are separated by 869 miles.
I don't have my laptop to check straight line, but driving from MT56 to ND56 is about 993 miles.
MA-2 is nearly 130 miles from US-2 in Vermont and New Hampshire
Quote from: JayhawkCO on August 13, 2022, 09:46:26 AM
I don't have my laptop to check straight line, but driving from MT56 to ND56 is about 993 miles.
Same story. Driving from MT37 to SD 37 is about 1,035 miles.
Obviously not going to get anything over 1000 miles involving Indiana, but I did find:
641 miles from M-64 at US 2 to IN 64 at the IL/IN line
382 miles from US 51 at the KY/IL lline to IN 51 at US 30
Longest I could find for CT is NY 75 and CT 75 (which also would apply to MA 75) being over 400 miles apart.
496 miles between Alabama 182 and Tennessee's.
Here's one for ya.
There used to be a three state highway, OH-120, M-120 and IN-120. OH-120 and IN-120 still exist there but M-120 no longer exists in that part of the state. The current M-120 is part of Old M-20 in the western part of the Lower Peninsula north of Muskegon. As the crow flies it's about 100 miles from M-120 to IN-120 and about 150 miles from M-120 to OH-120.
Quote from: flan on August 12, 2022, 11:28:14 PM
MN and ND 42 are 610 miles apart at their closest by straight line.
If you want to count this border, I found MI 222 and MN 222 are 609 miles apart at their closest.
MN 11 and WIS 11 are about 500 miles apart as well.
ND 16 and MN 16 is 591 miles.
ND 58 and MN 58 is 595.
CA 34 and OR 34 are 930 miles apart along US 101
Quote from: JayhawkCO on August 13, 2022, 09:46:26 AM
I don't have my laptop to check straight line, but driving from MT56 to ND56 is about 993 miles.
Any time I quote distances between to roads, or points on roads, I use driving distance, because that's how far you'd have to drive to get there. Using straight line distance may standardize things, but it's not practical.
I'm not sure of the distance between those two highways, but what came to mind for me was MO 27, in the northeast corner of Missouri, and K-27, which closely follows Kansas' border with Colorado.
1061 miles between the closest points of FM 3255 in western El Paso and LA 3255 east of Clinton, La.
iPhone
A few more:
MA 137 and CT 137: 227 miles
MA 139 and VT 139: 263 miles
NH 10 and ME 10: 374 miles
NY 37 and NJ 37: 402 miles
NY 384 and I-384 (CT): 405 miles
WV 152 and MD 152: 434 miles
NY 78 and CT/RI 78: 453 miles
PA 49 and WV 49: 476 miles
MD 90 and I-90 in PA: 490 miles
PA 191 and OH 191: 560 miles
OH 64 and M-64: 603 miles (through 3 other states)
Oh 3 to PA 3, 335/417 miles from Public Square in Cleveland to Center City West Chester.
I-610 in Texas and I-610 in Louisana are about 340 miles apart.
I-285 in NC and GA are about 300 miles apart.
There are a few of these involving 3di of I-40 in North Carolina and Tennessee:
The I-140s are about 490 miles apart
The I-240s are about 500 miles apart
The I-440s are about 540 miles apart
The I-840s are about 450 miles apart
I'm surprised NC doesn't have an I-640. Maybe because that was the planned number for a completed I-540?
Quote from: ran4sh on August 14, 2022, 02:55:58 AM
I'm surprised NC doesn't have an I-640. Maybe because that was the planned number for a completed I-540?
That was the original plan was to have it be I-640, but it was changed to I-540 because part of it is being constructed as a toll road. If I-540 in North Carolina were designated I-640 as originally planned, it would've only been 340 miles between the two.
GA 10 and FL 10. Over 245 miles between the two but further as you head west on US 90 out of Jacksonville. Between Jacksonville and Augusta are the closest those two get.
FL 8 ( I-10) and GA 8 are apart 200 miles between Tallahassee and Atlanta.
Also GA 2 and FL 2. Those are 300+ miles apart, FL 2 is along the northern border with GA and similarly GA 2 is along the northern border with TN/NC.
West Virginia has some interesting twists:
WV-106 in Guyandotte (East Huntington) -to- PA-106 in Carbondale PA (538 miles)
WV-73 in Mount Gay -to- PA-73 in Philadelphia (524 miles via Maryland, 529 miles if you stay in Pennsylvania - big whoop)
WV-75 near Lavalette -to- PA-75 in Cheltenham PA (511 miles)
WV-107 in Hinton -to- PA-107 near Jermyn PA (482 miles via Maryland and Virginia, 526 miles if you stay in Pennsylvania)
WV-49 in Williamson -to- PA-49 near Coudersport PA (480 miles)
WV-73 in Mount Gay -to- PA-73 near Leesport PA (476 miles)
WV-63 in Alderson -to- PA-63 in Green Lane PA (419 miles via Maryland and Virginia, 469 miles if you stay in Pennsylvania)
WV-44 west of Logan -to- PA-44 at I-80 in Buckhorn PA (467 miles)
This one doesn't count because it is closer to hit WV-3 in Beckley, but it was crazy:
WV-3 in Sweet Springs -to- PA-3 in West Chester (384 miles via Maryland and Virginia, 491 miles in you stay in Pennsylvania)
VA 166 is in the Tidewater area of Virginia. KY 166 is in the Jackson Purchase area of Kentucky. They're on the extreme ends of each state. Gotta be a pretty long haul between those two routes.
^^^
Oops. Missed these on the Kentucky side. More from West Virginia:
WV-51 at I-81 in Inwood -to- US-51 at US-62 in Bardwell KY (779 miles via Virginia and Tennessee)
WV-51 in Gerrardstown -to- US-51 at US-62 in Bardwell KY (765 miles staying in West Virginia)
WV-45 at I-81 in Inwood -to- US-45 at the Tennessee State Line near Oak Grove KY (678 miles via Virginia and Tennessee)
WV-45 at WV-51 in Gerrardstown -to- US-45 in Paducah KY (737 miles, staying in West Virginia all the way)
WV-115 in Martinsburg -to- KY-115 at the Tennessee State Line near Oak Grove KY (680 miles via Virginia and Tennessee)
WV-115 in Martinsburg -to- KY-115 at the other end in Fairview (Christian County) KY (692 miles, staying in West Virginia all the way)
^^^
I separated this one out because of the coincidence:
WV-480 at WV-45 in Shepherdstown -to- KY-480 in Shepherdsville KY (561 via Maryland, 565 miles staying in West Virginia)
The eastern terminus of TX Spur 148 in Fort Hancock and the western terminus of the westernmost segment of AR-148 in Black Oak are 1047 miles apart by car. (https://www.google.com/maps/dir/31.3054634,-105.838745/35.832377,-90.36806/@35.9060485,-90.3917693,62513m/data=!3m1!1e3!4m2!4m1!3e0)
Using driving distances along the Google recommended route. These are what I think are the longest, but people may find longer ones:
MB/ON 77 = 2424 km / 1506 mi (quickest route is through 6 US states!)
MN/ON 34 = 2034 km / 1264 mi
MI/ON 125 = 1837 km / 1141 mi
OH/ON 618 = 2146 km / 1333 mi
PA/ON 125 = 2446 km / 1520 mi
NY/ON 125 = 2707 km / 1682 mi
QC/ON 125 = 2075 km / 1289 mi
Red Lake in Northwestern Ontario is the hot spot for furthest distances!
The longest I could find for each of Nevada's neighboring states, via the shortest driving route:
Nevada 164/Oregon 164: 961 miles (as mentioned by the OP)
Nevada 289/Arizona 289: 939 miles
Nevada 169/California 169: 774 miles
Nevada 88/Utah 88: 705 miles
Nevada 28/Idaho 28: 641 miles
In the case of Nevada and Idaho, SR 28 is the only number they share (not counting the same highway; for those that don't meet at the state line, there's about 430 miles of I-15 between Nevada and Idaho, and about 121 miles of US 95 between the two).