Which Non-Interstates In Your State Have Exit Numbers?

[JayhawkCO]

Trying to compile a list of all the exits that have numbers in the U.S. (maybe Canada too). In your state, which non-interstate highways have exit numbers?

I'll start.

Colorado
CO21
CO470
E-470
Northwest Parkway

[74/171FAN]

Pennsylvania

PA 43 (PTC portion)
PA 66 (PTC portion)
PA 576
PA 581

I am unsure if the Nanticoke Freeway on the northern section of PA 29 and the PA 309 freeway section north of I-81/PA 115 in Wilkes-Barre count.  I see those as similar to the odd ADHS Corridor exit numbers on US 23 (Corridor B) and US 460 (Corridor Q).

The ones for US 15 and US 220 do not count IMO as they are intended for Future I-99.

[MATraveler128]

Everything in Massachusetts has exit numbers besides MA 57, MA 28 on Cape Cod, US 1 north of Boston, US 44 in Plymouth, and MA 79

[oscar]

In California, all state-maintained freeways (many of them non-Interstates) have exit numbers. There are a lot of them. For some routes, some numbers are assigned but not posted, as reflected in the following list.

https://dot.ca.gov/programs/safety-programs/exit

In Alaska, funny thing is that, AFAIK, only its one non-Interstate freeway, the Johansen Expressway in Fairbanks, has exit numbers. Just a few, with low numbers. There are freeways with paper Interstate designations, but AFAIK no exit numbers.

All of Hawaii's freeways are Interstates, except a short HI 78 stub between HI 99 and H-201 that has no numbered exits of its own.

[ilpt4u]

IL 255
IL 390
IL 6

That is off the top of my head for Illinois

[jmacswimmer]

For Maryland:

US 15 (9-18, Frederick area only)
US 29 (13-25, Howard County portion)
US 50 (3-45, includes unsigned I-595 overlap [7-24] but also extends further on either side)
US 301 (13-45, on portion overlapped with US 50)
US 340 (9-12, on portion overlapped with US 15)
MD 32 (3-25, freeway portion)
MD 100 (1-20, entire length)
MD 200 (3-20, entire length)

[wanderer2575]

Michigan:

US-10
US-23
US-31
US-127
US-131
M-5 (east-west portion)
M-6
M-10
M-14
M-39
M-53
M-59

Essentially, all freeways in Michigan except:
M-5 (north-south portion)
M-8
M-47 (freeway portion)
M-60 (freeway portion)
I-375

[Rothman]

Jayhawk's scared of formulanone breathing down his back in the lowest exit thread...

[JayhawkCO]

Jayhawk's scared of formulanone breathing down his back in the lowest exit thread...

No, not that. But you guys know I'm a nerd for tracking things and/or coming up with statistics. I thought it would be kinda cool to see which exit number is the lowest that doesn't exist, for example. Or how many Exit 0s there really are. Or what percentage of highways have an Exit 1, etc.

[cockroachking]

Belt Pkwy (Sequential/very loosely Mile-based)
Bethpage State Pkwy (Sequential; B prefix)
Bronx River Pkwy (Sequential; 2 independent sets)
Cross County Pkwy (Sequential)
Cross Island Pkwy (Sequential; continuation of Belt Pkwy)
FDR Drive (Sequential)
Grand Central Pkwy (Sequential)
Harlem River Drive (Sequential; continuation of FDR Drive)
Henry Hudson Pkwy (Sequential; continuation of West Side Hwy)
Hutchinson River Pkwy (Mile-based)
Jackie Robinson (Interboro) Pkwy (Sequential)
Korean War Veterans Memorial (Richmond) Pkwy (Sequential)
Meadowbrook State Pkwy (Sequential; M prefix)
Northern State Pkwy (Sequential; continuation of Grand Central Pkwy)
Palisades Interstate Pkwy (Sequential; continuation from NJ)
Robert Moses Causeway (Sequential; RM prefix)
Sagtikos State Pkwy (Sequential; S prefix)
Saw Mill River Pkwy (Sequential; some at-grade intersections)
Southern State Pkwy (Sequential; begins at 13)
Sunken Meadow Pkwy (Sequential; SM prefix)
Taconic State Pkwy (Mile-based)
Wantagh State Pkwy (Sequential; W prefix)

NY-9A/West Side Hwy (Sequential; at-grade intersections)
"Not-quite-yet I-86"/NY-17 (Sequential)
NY-27/Prospect Expy/Sunrise Hwy (Sequential w/ gap between)
NY-135/Seaford-Oyster Bay Expy (Sequential)
NY-390 (Sequential; continuation of I-390)
NY-440/West Shore Expy/Dr. MLK, Jr. Expy (Sequential)
NY-481 (Sequential; continuation of I-481; future independent Mile-based)
NY-590 (Sequential; continuation of I-590)

[Rothman]

Jayhawk's scared of formulanone breathing down his back in the lowest exit thread...

No, not that. But you guys know I'm a nerd for tracking things and/or coming up with statistics. I thought it would be kinda cool to see which exit number is the lowest that doesn't exist, for example. Or how many Exit 0s there really are. Or what percentage of highways have an Exit 1, etc.

You smell that, Rabbit?

Fear.

[roadman65]

Turnpikes in each state count of course.

In my state we have plenty. My city has FL SR 570 which is a toll road circular bypass of the original part of it.

TOLL FL 528.
TOLL FL 408
TOLL FL 429
TOLL FL 417
TOLL FL 618 ( Sequential)
TOLL FL 589
TOLL FL 23 ( I think)

[TheStranger]

In California, all state-maintained freeways (many of them non-Interstates) have exit numbers. There are a lot of them. For some routes, some numbers are assigned but not posted, as reflected in the following list.

https://dot.ca.gov/programs/safety-programs/exit

Interestingly, I think the only freeway in California without any exit numbering at all now is the short Route 33 spur in Ventura, at least as of 2020 when I and a friend took it as part of a roadtrip through Ojai.

[hbelkins]

Kentucky:

All the parkways
US 60 (Owensboro bypass)
KY 4 (New Circle Road in Lexington)
US 23 (Pikeville cut-thru)
KY 9007 (Has an Exit 0 at KY 622/Plano Road)
KY 841 (Gene Snyder Freeway between US 31W/60 and I-65)

[JayhawkCO]

Jayhawk's scared of formulanone breathing down his back in the lowest exit thread...

No, not that. But you guys know I'm a nerd for tracking things and/or coming up with statistics. I thought it would be kinda cool to see which exit number is the lowest that doesn't exist, for example. Or how many Exit 0s there really are. Or what percentage of highways have an Exit 1, etc.

You smell that, Rabbit?

Fear.

Consider my shorts changed.

[TheHighwayMan3561]

MN has a potpourri of partially completed ones with zero real coordination or planning

US 10 has a few one-offs through Blaine and Anoka
US 10/61 southeast of 494 have a couple one-offs
US 12 from I-394 to the western Hennepin CSAH 15 exit
US 14 on the recently completed four-lane in Dodge County
US 52 through South St. Paul, a few one-offs between the metro and Rochester, and then through Rochester itself (the latter was first non-Interstate in MN to get them)
US 169 on the Shakopee bypass up to the northern Hennepin CSAH 1 exit
US 212 between TH 62/US 169 and I-494

TH 62 Crosstown from Shady Oak Road to I-35W, and then on the TH 55 duplex
TH 77 south of the Minnesota River
TH 100, northern half
TH 610, the only complete one that I am aware of

[formulanone]

...which exit number is the lowest that doesn't exist, for example.

That question came up here a few years back and it was 511, for the US. Likely higher including other countries with kilometer-based exits.

Jayhawk's scared of formulanone breathing down his back in the lowest exit thread...

Fear not, Alabama has no exit numbers on any of its non-interstate grade separations. Did I miss anything?

AL 255 (Research Park Blvd) - no
AL 158 (Industrial Parkway) - no
AL 152 (North Boulevard) - no
US 31/280 (Red Mountain) - no
US 31 (scattered along Montgomery Highway) - no
US 82 (McFarland Boulevard) - no
US 43 (scattered here and there) - no

[Great Lakes Roads]

Indiana:

IN 912
US 31 - Kokomo Bypass, Plymouth-South Bend, Hamilton County, and SR 28 interchange in Tipton County
St. Joseph Valley Parkway (US 20/31) - added to the list in 2024

IN 265 (resigned as I-265)

[CoreySamson]

I'm pretty sure the only non-interstates in Texas with exit numbers are US 59 in Shepherd, US 75, US 54, TX 375, and Spur 601. Essentially just El Paso District's highways and two logical continuations of interstate highways.

[74/171FAN]

Turnpikes in each state count of course.

In my state we have plenty. My city has FL SR 570 which is a toll road circular bypass of the original part of it.

TOLL FL 528.
TOLL FL 408
TOLL FL 429
TOLL FL 417
TOLL FL 618 ( Sequential)
TOLL FL 589
TOLL FL 23 ( I think)

FL 23 has exit numbers.

I think that the only ones in VA minus what I mentioned in my earlier post are VA 168 (Chesapeake Expressway) and VA 267.

[Mr_Northside]

Pennsylvania

PA 43 (PTC portion)
PA 66 (PTC portion)
PA 576
PA 581

I am unsure if the Nanticoke Freeway on the northern section of PA 29 and the PA 309 freeway section north of I-81/PA 115 in Wilkes-Barre count.  I see those as similar to the odd ADHS Corridor exit numbers on US 23 (Corridor B) and US 460 (Corridor Q).

The ones for US 15 and US 220 do not count IMO as they are intended for Future I-99.

Also, the PA-28 freeway from it southern terminus (on the Northside of Pittsburgh) to US-422 - though these are sequentially numbered exits

[Hunty2022]

North Carolina:

US 17 (Future I-87) (through Notheast NC)
US 29 (Future I-785) (North of Greensboro)
US 64 (bypasses)
US 74 (+ US 74 Bypass)
US 421 (through Central NC)
NC-140

There's probably more.

[Max Rockatansky]

In California, all state-maintained freeways (many of them non-Interstates) have exit numbers. There are a lot of them. For some routes, some numbers are assigned but not posted, as reflected in the following list.

https://dot.ca.gov/programs/safety-programs/exit

In Alaska, funny thing is that, AFAIK, only its one non-Interstate freeway, the Johansen Expressway in Fairbanks, has exit numbers. Just a few, with low numbers. There are freeways with paper Interstate designations, but AFAIK no exit numbers.

All of Hawaii's freeways are Interstates, except a short stub between HI 99 and H-201 that has no numbered exits of its own.

Interestingly the Ojai Freeway (CA 33) still does not have exit numbers.  Aside from weird stuff like CA 77 and CA 244 it is the only major state owned freeway without exit numbers.

[Big John]

Wisconsin
US 10, 12, 14, 41, 45, 51, 53, 61, 151
WI 16, 26, 29, 64, 145, 441

[freebrickproductions]

Jayhawk's scared of formulanone breathing down his back in the lowest exit thread...

Fear not, Alabama has no exit numbers on any of its non-interstate grade separations. Did I miss anything?

AL 255 (Research Park Blvd) - no
AL 158 (Industrial Parkway) - no
AL 152 (North Boulevard) - no
US 31/280 (Red Mountain) - no
US 31 (scattered along Montgomery Highway) - no
US 82 (McFarland Boulevard) - no
US 43 (scattered here and there) - no

You forgot Memorial Parkway!
US 231/US 431 (partially) (Memorial Parkway) - no