Longest stretch of consecutive freeway exits to numbered routes

[TheStranger]

Thought of this today as I drove past I-380 in San Bruno

Had I-380/State Route 380 been built further west as originally planned to Pacifica, the San Bruno stretch would have then consisted of the following exits:

Route 35/Skyline Boulevard
I-280 (existing Exit 5A/5B)
Route 82 (existing Exit 5C)
US 101/Bayshore Freeway (existing Exit 6)

This made me think: What's the longest stretch in which the exits all go to roads with numeric (or in some states, alphabetical) route designations?  (honorable mention if this includes exits that are marked for TO (numbered road) without going to an actual sign route directly, and also if a streak is interrupted by unsigned numbered routes that the freeway connects to)

Are there any freeways in which every single exit goes to a numbered route?  (380 itself does not fit that due to the ramps to South Airport Boulevard in South San Francisco)

[Dirt Roads]

How about I-64 in West Virginia and Kentucky?

West Virginia

• Exit 28 - To US-60
• Exit 20B - CR-60/89 (To US-60) Sorry, West Virginia's fractionals don't really count as numbered highways.
• Exit 20A - To US-60
• Exit 18 - WV-193 (To WV-2)
• Exit 15 - US-60
• Exit 11 - WV-10
• Exit 8 - South WV-152/North WV-527
• Exit 6 - North US-52
• Exit 1 - South US-52

Kentucky

• Exit 191 - US-23
• Exit 185 - KY-180 (To US-60)
• Exit 181 - US-60
• Exit 179 - North KY-67
• Exit 172 - KY-1/KY-7 (To AA Highway)(To KY-9)
• Exit 161 - US-60
• Exit 156 - KY-2 (To KY-59)
• Exit 137 - East KY-32
• Exit 133 - KY-801
• Exit 123 - US-60
• Exit 121 - KY-36
• Exit 113 - US-60
• Exit 110 - US-460/KY-11
• Exit 101 - US-60

That's 23 consecutive exits over about 117.5 miles.

If you include unposted and unsigned numbered highways, the route extends further west to Louisville:

• Exit 98 - Mountain Parkway (unposted KY-9000)
• Exit 96 - KY-627
• Exit 94 - KY-1958 (To KY-627)
• Exit 87 - KY-859
• Exit 81 - South I-75
• Exit 113 - US-27/US-68
• Exit 115 - KY-922
• Exit 75 - North I-75
• Exit 69 - East US-62
• Exit 65 - KY-341 (To West US-62)
• Exit 58 - US-60
• Exit 53 - US-127
• Exit 49 - East US-460
• Exit 48 - KY-151 (To South US-127)
• Exit 43 - KY-395
• Exit 35 - KY-53
• Exit 32 - KY-55
• Exit 28 - KY-1848
• Exit 19 - I-265/KY-841
• Exit 17 - Blankenbaker Parkway (KY-913 but exit unsigned)
• Exit 15 - KY-1747
• Exit 12 - I-264

That brings the total to 45 consecutive exits over about 207 miles.

[Rothman]

Makes me wonder about VA.  Most roads have a state highway number.

[roadman65]

In Polk County, Florida all I-4 exits onto numbered roads. 33 miles of interstate in that particular county.

FL TOLL 570 in the same county connects to all but three unnumbered roads.

Exit 1- CR 542
Exit 3- SR 572
Exit 4- Unnumbered
Exit 6- SR 563
Exit 7- SR 37
Exit 9- CR 37B
Exit 10- US 98
Exit 14- SR 540
Exit 17- US 92
Exit 18 Unnumbered
Exit 23- Unnumbered
Exit 24- I-4

[JayhawkCO]

This isn't really a thing in Colorado.

The longest stretch mile-wise is 11 miles on I-70 from exit 15 to exit 26 (3 exits total).
The greatest amount of exits in a row is 6 on I-70 from exit 265 to exit 271A.

[Great Lakes Roads]

Interstate 64 in Indiana-

Exit 4- SR 69
Exit 12- SR 165
Exit 18- SR 65
Exit 25- US 41
Exit 29- I-69/SR 57
Exit 39- SR 61
Exit 54- SR 161
Exit 57- US 231
Exit 63- SR 162
Exit 72- SR 145
Exit 79- SR 37
Exit 86- SR 237
Exit 92- SR 66
Exit 105- SR 135

105. 3 miles

[7/8]

The longest example I can find in Ontario is 169.8 km (105.5 mi) on Highway 401, from Exit 14 (Essex County Road 46) to Exit 183 (Highway 402)

[JayhawkCO]

This isn't really a thing in Colorado.

The longest stretch mile-wise is 11 miles on I-70 from exit 15 to exit 26 (3 exits total).
The greatest amount of exits in a row is 6 on I-70 from exit 265 to exit 271A.

The longest example I can find in Ontario is 169.8 km (105.5 mi) on Highway 401, from Exit 14 (Essex County Road 46) to Exit 183 (Highway 402)

If we're counting county roads too, which I guess I didn't realize people were, then the longest and most amount of exits in Colorado is 22 miles on I-25 from Exit 235 to exit 257 for 9 exits (CO52, CO119, CO66, CR34, CO56, CO60, CO60, CO402, US34).

[jp the roadgeek]

I-90 West from inside 128 in the Boston area all the way to Albany, about 166 miles.

Exit 125: MA 16
Exit 123: I-95/MA 128 and MA 30
Exit 117: MA 30
Exit 111: MA 9
Exit 106: I-495
Exit 96: MA 122
Exit 94: US 20 and MA 146
Exit 90: I-290/I-395 and MA 12
Exit 78: I-84 and US 20
Exit 63: MA 32 and US 20
Exit 54: MA 21
Exit 51: I-291
Exit 49: MA 33
Exit 45: I-91/US 5
Exit 41: US 202/MA 10
Exit 10: US 20 and MA 102
Exit 3: MA 41
Exit B3: NY 22
Exit B2: TSP and NY 295
Exit B1: I-90 (TOTSO) and US 9
Exit 12: US 9
Exit 11: US 9/US 20
Exit 10: CR 154 (unsigned on BGS)
Exit 9: US 4
Exit 8: NY 43
Exit 6A: I-787
Exit 6: US 9
Exit 5A: Corporate Woods Blvd


It would have continued to the State Offices exit if I-687 were built.

[thspfc]

Wisconsin is tougher because of our lettered county roads. For freeways it's probably 36 miles of I-39/90 between CTH-N in Dane County and CTH-S north of Beloit.

Exit 147: CTH-N
156: US-51 N
160: US-51 S / WI-73 N
163: WI-59
171A: WI-26
171B: US-14
175: WI-11 E
177: WI-11 W
183: CTH-S


If divided highways with periodic intersections in addition to interchanges are allowed in, it's 41 miles of WI-26 between the start of the expressway in Dodge County and CTH-N north of Milton.

Exit 52: WI-60 / WI-16 W
45: WI-16 E
43: WI-19
39: BUS-26 (Watertown)
30: BUS-26 (Jefferson)
27: US-18
25: BUS-26 (Jefferson)
23: BUS-26 (Fort Atkinson)
21: US-12
19: WI-106
17: BUS-26 (Fort Atkinson)
11: CTH-N

[Dirt Roads]

If we're counting county roads too, which I guess I didn't realize people were, then the longest and most amount of exits in Colorado is 22 miles on I-25 from Exit 235 to exit 257 for 9 exits (CO52, CO119, CO66, CR34, CO56, CO60, CO60, CO402, US34).

West Virginia and Virginia both often sign county roads on their BGS (which are technically State Secondary Routes in both states).  I wouldn't count them as "Numbered Routes", but maybe the OP would.  Note the snide comment I made about West Virginia fractional routes upstream.  That's got more than a number hiding in the circular shield.

[JayhawkCO]

If we're counting county roads too, which I guess I didn't realize people were, then the longest and most amount of exits in Colorado is 22 miles on I-25 from Exit 235 to exit 257 for 9 exits (CO52, CO119, CO66, CR34, CO56, CO60, CO60, CO402, US34).

West Virginia and Virginia both often sign county roads on their BGS (which are technically State Secondary Routes in both states).  I wouldn't count them as "Numbered Routes", but maybe the OP would.  Note the snide comment I made about West Virginia fractional routes upstream.  That's got more than a number hiding in the circular shield.

Yeah, Weld County Road 34 in this case isn't shown on the BGS. It's just shown as an exit to Mead.

[Great Lakes Roads]

ITR/Ohio Turnpike-

Exit 31- SR 49
Exit 39- US 421
Exit 49- SR 39
Exit 72- US 31
Exit 77- SR 933
Exit 83- SR 331
Exit 92- SR 19
Exit 96- CR 17
Exit 101- SR 15
Exit 107- US 131/SR 13
Exit 121- SR 9
Exit 144- I-69/SR 120/SR 127
Exit (2)- OH 49
Exit 13- US 20A/OH 15
Exit 25- OH 66
Exit 34- OH 108
Exit 39- OH 109
Exit 52- OH 2
Exit 59- US 20
Exit 64- I-75
Exit 71- I-280/OH 420
Exit 81- OH 51
Exit 91- OH 53
Exit 110- OH 4
Exit 118- US 250

Total mileage: 244.12

[roadman65]

NJ Turnpike
Exit 1- US 40/ NJ 140
Exit 2- US 322
Exit 3- NJ 168
Exit 4- NJ 73
Exit 5- Burlington CR 541
Exit 6 I-95
Exit 7- US 206
Exit7A I-195
Exit 8- NJ 33
Exit 8A- NJ 32
Exit 9- NJ 18
Exit 10 I-287/ NJ 440
Exit 11- US 9
Exit 12 Numberless
Exit 13 I-278
Exit 13A- NJ 81 ( Unsigned)
Exit 14 I-78/ US 1-9
Exit 15E- US 1-9 Truck
Exit 15W I-280
Exit 15X Unnumbered
Exit 16E- NJ 495
Exit 16W- NJ 3
Exit 17- NJ 495
Exits 18E/W I-80/ US 46

[Dirt Roads]

ITR/Ohio Turnpike-

Exit 31- SR 49
Exit 39- US 421
Exit 49- SR 39
Exit 72- US 31
Exit 77- SR 933
Exit 83- SR 331
Exit 92- SR 19
Exit 96- CR 17
Exit 101- SR 15
Exit 107- US 131/SR 13
Exit 121- SR 9
Exit 144- I-69/SR 120/SR 127
Exit (2)- OH 49
Exit 13- US 20A/OH 15
Exit 25- OH 66
Exit 34- OH 108
Exit 39- OH 109
Exit 52- OH 2
Exit 59- US 20
Exit 64- I-75
Exit 71- I-280/OH 420
Exit 81- OH 51
Exit 91- OH 53
Exit 110- OH 4
Exit 118- US 250

Total mileage: 244.12

Why stop there?
Ohio Turnpike (continued)

• Exit 135 - To OH-2
• Exit 140 - OH-58
• Exit 148 - East I-90/East OH-2
• Exit 145 - OH-57
• Exit 151 - I-480
• Exit 152 - To OH-10
• Exit 161 - I-71/US-42
• Exit 173 - I-77/OH-21
• Exit 180 - OH-8
• Exit 187 - I-480/OH-14
• Exit 193 - OH-44
• Exit 209 - OH-5

That will bring you up to 37 exits and adds 90.7 miles to your total, racking up a whopping 334.8 miles.  But you just reminded me of another...

[Dirt Roads]

...really close by.

Ohio Turnpike

• Exit 218 - West I-76/East I-80 (To South I-680)
• Exit 232 - PA-7
• Exit 234 - North I-680

Pennsylvania Turnpike

• Exit 10 - I-376
• Exit 13 - PA-18
• Exit 28 - I-79/US-19
• Exit 39 - PA-8
• Exit 48 - To PA-28
• Exit 57 - West I-376/US-22/Business US-22
• Exit 67 - US-30
• Exit 75 - West I-70/US-119/Toll PA-66
• Exit 91 - PA-31 (To PA-711)
• Exit 110 - To US-219
• Exit 146 - I-99/US-220
• Exit 161 - US-30 (To East I-70)
• Exit 180 - US-522
• Exit 189 - PA-75
• Exit 201 - PA-997
• Exit 226 - US-11/To I-81
• Exit 236 - US-15
• Exit 242 - I-83
• Exit 247 - North I-283/East PA-283
• Exit 266 - PA-72
• Exit 286 - US-222
• Exit 298 - North I-176 (To PA-10)(To PA-23)
• Exit 312 - PA-100
• Exit 320 - PA-29
• Exit 326 - East I-76 (To I-476)(To US-202)(To US-422)
• Exit 333 - North Toll I-476
• Exit 339 - PA-309

Sadly, the PTC breaks the string at Exit 340 (Virginia Drive).  This is a total of 30 exits over 353.8 miles.

[Revive 755]

Are there any freeways in which every single exit goes to a numbered route?  (380 itself does not fit that due to the ramps to South Airport Boulevard in South San Francisco)

The freeway stretch of US 67 around Jacksonville, IL qualifies:

• I-72
• Business Loop 72
• IL 104 East/IL 78 North

I-280 in Illinois is close:

• IL 92
• To US 67 in text, used to be IL 92; appears to still be an unmarked state roadway still
• I-74/US 6
• I-80/I-74

The short freeway stretch of US 51 south of I-72 around Decatur used to qualify:

• Business 51 (now unnumbered)
• Business 51 (now unnumbered)
• IL 48
• I-72/US 36

[TheStranger]

Wisconsin is tougher because of our lettered county roads. For freeways it's probably 36 miles of I-39/90 between CTH-N in Dane County and CTH-S north of Beloit.

Exit 147: CTH-N
156: US-51 N
160: US-51 S / WI-73 N
163: WI-59
171A: WI-26
171B: US-14
175: WI-11 E
177: WI-11 W
183: CTH-S


If divided highways with periodic intersections in addition to interchanges are allowed in, it's 41 miles of WI-26 between the start of the expressway in Dodge County and CTH-N north of Milton.

Exit 52: WI-60 / WI-16 W
45: WI-16 E
43: WI-19
39: BUS-26 (Watertown)
30: BUS-26 (Jefferson)
27: US-18
25: BUS-26 (Jefferson)
23: BUS-26 (Fort Atkinson)
21: US-12
19: WI-106
17: BUS-26 (Fort Atkinson)
11: CTH-N

Hey, I count lettered routes too!  Basically, "designated route" is the concept.  What would Wisconsin's longest stretch be if those are included?

[freebrickproductions]

There's probably longer in Alabama, but off the top of my head, I-65 across Cullman County is certainly up there:
Exit 318 - US 31
Exit 310 - AL 157
Exit 308 - US 278
Exit 305 - Cullman CR 222
Exit 304 - AL 69 North
Exit 299 - AL 69 South
Exit 291 - AL 91

27 miles and 7 exits. If you want to pull a technicality on one, you can get even further south:
Exit 289 - Blount CR 5 (unsigned from I-65, technicality only)
Exit 287 - US 31 North
Exit 284 - US 31 South/AL 160

That being said, if you pull that same technicality, then every interchange along I-65 from Exit 252 in Hoover/Vestavia hills to Exit 173 in Montgomery is with a numbered road:
Exit 252 - US 31
Exit 250 - I-459
Exit 247 - Shelby CR 17
Exit 246 - AL 119
Exit 242 - Shelby CR 52
Exit 238 - US 31
Exit 234 - Shelby CR 87 (unsigned from I-65, technicality only)
Exit 231 - US 31
Exit 228 - AL 25
Exit 219 - Chilton CR 42 (unsigned from I-65, technicality only)
Exit 212 - AL 145
Exit 208 - Chilton CR 28 (unsigned from I-65, technicality only)
Exit 205 - US 31/AL 22
Exit 200 - Chilton CR 59 (unsigned from I-65, technicality only)
Exit 186 - US 31
Exit 181 - AL 14 East
Exit 179 - US 82 West/AL 14 West
Exit 176 - AL 143
Exit 173 - AL 152

I-65 south of Montgomery may have an even longer stretch, if you pull the same technicality, but I don't feel like listing it all out.

[pderocco]

I'm not surprised that Kentucky was quickly mentioned, because it has thousands of state highways, so it would be hard to find a road that needed an exit that wasn't a state highway. And I'm not surprised that toll roads like the Mass Pike were mentioned, because in the days when tollbooths were expensive to run, the exits were far apart, so they generally wouldn't stoop to creating interchanges with inferior unnumbered roads.

[Molandfreak]

Would you count a numbered designation that only appears in one direction of travel? Business Loop I-35 in Ames, Iowa appears southbound at exit 113, but it is omitted from northbound signage because you would be going backwards on the business loop. If that doesn't count, there are numbered highways on every exit from there to exit 41 for Bridge Street in Owatonna, Minnesota. If this counts, the southern end of this streak is at exit 96 near Ankeny, Iowa.

[DandyDan]

No one has mentioned Nebraska, but on I-80, every incorporated small town right off of I-80 has a connecting link highway to the town. It looks like every exit from the WY-NE border to the Locust Street exit for Grand Island (Exit 314) has a number. The first one in Wyoming is WY 215, too.

[thspfc]

Wisconsin is tougher because of our lettered county roads. For freeways it's probably 36 miles of I-39/90 between CTH-N in Dane County and CTH-S north of Beloit.

Exit 147: CTH-N
156: US-51 N
160: US-51 S / WI-73 N
163: WI-59
171A: WI-26
171B: US-14
175: WI-11 E
177: WI-11 W
183: CTH-S


If divided highways with periodic intersections in addition to interchanges are allowed in, it's 41 miles of WI-26 between the start of the expressway in Dodge County and CTH-N north of Milton.

Exit 52: WI-60 / WI-16 W
45: WI-16 E
43: WI-19
39: BUS-26 (Watertown)
30: BUS-26 (Jefferson)
27: US-18
25: BUS-26 (Jefferson)
23: BUS-26 (Fort Atkinson)
21: US-12
19: WI-106
17: BUS-26 (Fort Atkinson)
11: CTH-N

Hey, I count lettered routes too!  Basically, "designated route" is the concept.  What would Wisconsin's longest stretch be if those are included?

Well, every exit off I-90 in WI is to either a numbered or lettered route. So 187 miles.

[Molandfreak]

Wisconsin is tougher because of our lettered county roads. For freeways it's probably 36 miles of I-39/90 between CTH-N in Dane County and CTH-S north of Beloit.

Exit 147: CTH-N
156: US-51 N
160: US-51 S / WI-73 N
163: WI-59
171A: WI-26
171B: US-14
175: WI-11 E
177: WI-11 W
183: CTH-S


If divided highways with periodic intersections in addition to interchanges are allowed in, it's 41 miles of WI-26 between the start of the expressway in Dodge County and CTH-N north of Milton.

Exit 52: WI-60 / WI-16 W
45: WI-16 E
43: WI-19
39: BUS-26 (Watertown)
30: BUS-26 (Jefferson)
27: US-18
25: BUS-26 (Jefferson)
23: BUS-26 (Fort Atkinson)
21: US-12
19: WI-106
17: BUS-26 (Fort Atkinson)
11: CTH-N

Hey, I count lettered routes too!  Basically, "designated route" is the concept.  What would Wisconsin's longest stretch be if those are included?

Well, every exit off I-90 in WI is to either a numbered or lettered route. So 187 miles.

Not High Crossing Boulevard in Madison. Besides that, every exit on I-39 is to a numbered or lettered highway, too.

[WillWeaverRVA]

Makes me wonder about VA.  Most roads have a state highway number.

Yup, if it's not in Henrico County, Arlington County, or an independent city (or some incorporated towns), it's most likely got a route number. There are very few exits in VA to unnumbered roads or unsigned secondary routes, though I-64 Exit 1 is to Jerry's Run Trail, a seasonal road that is unsigned F-198.

If you only count primary routes, though, here's Virginia:

I-64 has 2 stretches of 9 straight exits:

(stretch starts after Exit 181 - Parham Rd, unnumbered)
Exit 183 - US 250
Exit 185 - US 33
Exit 186 - I-195/VA 197
Exit 187 - I-95 north (EB only)
Exit 78 (I-95 concurrency) - VA 161
Exit 76 - US 1/US 301/VA 33
Exit 75 (I-95 concurrency)/Exit 190 (I-64 WB) - I-64 east
Exit 192 - US 360
Exit 193 - VA 33
(stretch ends at Exit 195 - Laburnum Ave, unnumbered)

(stretch starts after exit 231 - SR 607, secondary)
Exit 234 - VA 199
Exit 238 - VA 143
Exit 242 - VA 199
Exit 243 - US 60/VA 143/Busch Gardens
Exit 247 - VA 143/VA 238
Exit 250 - VA 105
Exit 255 - VA 143
Exit 256 - VA 171
Exit 258 - US 17
(stretch ends at Exit 261 - Hampton Roads Center Pkwy, unnumbered)

I-66 has no more than 4 straight exits with primary routes
I-74 has no more than 3 straight exits with primary routes
I-77 has no more than 3 straight exits with primary routes

I-81 has 1 stretch of 8 straight exits:
(stretch starts after Exit 26 - SR 737, secondary)
Exit 29 - VA 91
Exit 32 - US 11
Exit 35 - VA 107
Exit 39 - US 11
Exit 44 - US 11
Exit 45 - VA 16
Exit 47 - US 11
Exit 50 - US 11
(stretch ends at Exit 54 - SR 683, secondary)

I-85 has no more than 3 straight exits with primary routes

I-95 has 1 stretch of 10 straight exits:
(stretch begins after Exit 73 - Maury St, unnumbered)
Exit 74 - VA 195/US 250/VA 318
Exit 75 - I-64 eastbound
Exit 76 - US 1/US 301/VA 33
Exit 78 - VA 161
Exit 79 - I-64 westbound/I-195
Exit 80 - VA 161
Exit 81 - US 1
Exit 82 - US 301/VA 2
Exit 83 - VA 73 westbound
Exit 84 - I-295/US 1
(stretch ends at Exit 86 - SR 656, secondary)

In addition, I-381 and I-564 ONLY have junctions with primary routes - the Intermodal Connector is officially part of I-564 (and would form part of the planned Third Crossing, which would also be primary), and I-381's only interchange is with I-81 and it continues as a primary route at its other end.

I-195 and I-581 have junctions with primary routes at all but one of their exits (I-195 southbound has a ramp to unnumbered Rosewood Avenue, I-581 northbound has a ramp to unnumbered Valley View Blvd).