Highest-numbered route you have been on

[Ben114]

secret NY route 958A.

[bing101]

I-980 Oakland.

[CoreySamson]

I think my winner would be LA-3246 in Baton Rouge.

Highest fully clinched would be FM-2004.

[tq-07fan]

Signed: KY 1978
Unsigned: VA 90004 (Dulles Access Road, I was a passenger on a bus)

[bassoon1986]

LA 3280. The Endom Bridge between Monroe and West Monroe, Louisiana. One of maybe a couple state routes that do not connect to any other numbered routes. It is also unsigned.


iPhone

[DandyDan]

The highest I can remember concretely offhand is I-894, but there are a couple Texas FMs I probably hit while fucking around there in fall 2015.

Forgot about checking what possible roads I was on the year I went to El Paso. There is FM 3255 in El Paso. I feel like this is my final answer, at least for signed highways.

[TheStranger]

As a passenger: KY 3192 near Wilsonville, Kentucky in 2006

As a driver: either KY 2052 (Shepherdsville Road) or KY 1747 (Fern Valley Road) in Louisville in 2015/2016/2019

[oscar]

For me, probably Virginia secondary 10292 (Nutley St. in Fairfax, between US 50 and US 29), though there are higher numbered SRs in Northern Virginia. Not counting the unsigned fictional 9xxxx numbers devised by VDOT for some Federal Government highways it didn't build and doesn't maintain. 

[CNGL-Leudimin]

Coming up with "exotic" stuff: HU-V-9601. However it is set to become A-2616 in the near future.

Now I think, in another thread, about the largest route number difference in a junction, I came up with A-2 and LP-9221. It turns out the N-260/HU-V-9601 roundabout yields a larger difference, even though it doesn't seem so at first glance. And searching up, I see N-230/HU-V-9998. The latter is the highest numbered road in my province (and in all of Aragon, and possibly Spain).

[deathtopumpkins]

Signed primary highway in the US: FL 9336
Unsigned highway in the US: VA 90005
Signed highway abroad: B9169, Scotland

I'm not gonna attempt to look at VA secondaries, NYS reference routes, or Quebec.

[kphoger]

Signed?  Hmmmm, I think this might be mine:

[hbelkins]

If we're counting the GW Parkway in Virginia, then it.

If not, then I know I have been on a 9000-series school road in Virginia, and a 6000-series frontage road in Kentucky. And, of course, the Kentucky parkways all have 9000-series numbers.

[formulanone]

There's a County Road 90938 in Yatesville, Georgia (signage on back of the stop sign).

[jp the roadgeek]

Not sure if I was on LA 3139 or LA 3152 when I went to New Orleans.  Highest signed route I can think of was either PA 926 (not sure) or MD 924 (clinched).  Been past the end of I-990 as a passenger and have driven NY 984J (the connector from the Hutch to I-684) many times.

[I-55]

Signed: KY-3005 (likely have been on a higher signed route in KY but this one I know for sure I've been on multiple times)

Unsigned: EB 9004 (Pennyrile Pky)

[Alps]

I've been on 90005 as well, but my intent was signed designations mainly. That said, have fun with discourse either way!

[PWebb04]

Interstate 440 in Nashville (As far as I can remember)

[kphoger]

Signed: KY-3005 (likely have been on a higher signed route in KY but this one I know for sure I've been on multiple times)

Unsigned: EB 9004 (Pennyrile Pky)

Likewise, I've been on the Purchase Parkway (secret KY-9003).

However, I don't think any signed KY-# route I've been on has a higher number than RM-2248.  Every possibility I can think of is lower.

[Avalanchez71]

Signed route would be FL SR 9336.  I guess unsigned route would be VA 10005.

Maybe we could do this by state.

[SkyPesos]

G9411 in the Guangzhou area for me

[jp the roadgeek]

Maybe we could do this by state.

Okayyy....



Then for the states I've been on roads in:

CT: 691 (signed) 920 (unsigned)
DC: 395 (current) 695 (former)
DE: 896
FL: 836
GA: 95 (Highest and Lowest)
HI: 550
IN: 70
LA: 610 (confirmed), 3152 (possible)
MA: 495
MD: 924
ME: 295
MS: 110
NC: 501
NH: 103
NJ: 541 (signed) 700 (unsigned)
NY:  495 (signed), 987 C, D & H (unsigned)
PA: 897 (confirmed), 926 (possible)
RI: 401
SC: 501
VA: 671
VT: 346
WV: 340

[NWI_Irish96]

Maybe we could do this by state.

Going just by what is in TravelMapping:

KY 3223
ND 1804
FL 970
IN 933
WI 894
CA 880
TX 820
WY 789
MD 713
MI 696
DC 695
TN 640
NM 597
PA 579
SC 576
WA 522
NV 515
VA 495
MN 494
CO 491
UT 491
GA 475
OH 475
IL 474
WV 470
NC 441
MO 367
LA 310
MT 310
DE 295
IA 280
AR 270
OK 270
AZ 260
SD 244
AL 231
NJ 206
KS 169
MS 110
OR 104
NY 95
ID 89
NE 80

[JayhawkCO]

If a state route is highest, only using signed highways.

LA   3257
KY   1954
ND   1806
CA   980
WA   900
MD   895
IA   880
PA   867
IN   865
NV   856
FL   826
NC   795
WI   794
WY   789
MO   763
OR   730
DC   695
MN   694
CT   691
NE   680
OH   680
NY   678
KS   670
CO   666 - Was on it while it was still signed as such
TN   640
NM   615
TX   610
GA   575
AL   565
MT   507
MI   496
VA   495
UT   491
OK   444
SC   401
NH   393
AZ   389
AR   367
IL   355
DE   295
NJ   295
MS   278
WV   250
SD   248
ID   200
MA   128
ME   109
RI   95
VT   89

Chris

[formulanone]

Going mostly off Travel Mapping...unsigned routes in parenthesis, but I excluded county routes.

FL 9336
TX 3338
LA 3246
KY 3060 (9007)
PA 987
GA 985
AR 980
CA 980
MD 936
IN 933
MS 923
SC 917
NC 903
WV 901
WA 900
VA 895 (90005)
WI 894
NY 890 (987G)
TN 840
OH 835
AB 834
AL 759
MO 759
OR 730
DC 695
MN 694
CT 691
NJ 676 (700)
KS 635
NM 599
DE 495
MA 495
IA 480
NE 480
IL 474
SD 471
WY 450
OK 412 (444)
RI 402
ME 395 (701)
NH 393
MI 375
NV 215 (604)
ND 210
AZ 202
VT 189
ID 128
BC 99
UT Runway 35 at SLC

[Ben114]

By state....

MA 495
MI 475
CT 395
ME 395
RI 295
NY 190 (958A)
NH 114
VT 100