Numbered Routes With Only 2 Lanes For Its ENTIRE Route

[CoreySamson]

How many numbered roads are there that only have 1 travel lane in each direction WITHOUT turning lanes for it's entire route? Seems like there shouldn't be that many, but I might be surprised how many there are. Preferably would like to find the longest route or a state route with only 2 lanes.

Example: FM 2185 in Van Horn, at 41.8 miles
https://www.google.com/maps/dir/31.0492629,-104.83149/31.4205144,-104.4539003/@31.2188837,-104.7352556,11.23z/data=!4m2!4m1!3e0

[NWI_Irish96]

I'm sure there are others in Indiana, but IN 211 is the first one that comes to mind.

[Max Rockatansky]

I'm going to say probably CA 127 in California at 97 miles.  It looks like all turns at highway junctions are made from the two travel lanes in my photos:

https://www.gribblenation.org/2018/01/2018-mojave-road-trip-part-2-deadly.html?m=1

[cbeach40]

Ontario Highway 599 in the remote northwestern part of the province is 292 km and does not appear to have any turn lanes.

[GaryV]

M-185 

[Hot Rod Hootenanny]

Oh 288, Oh 203, Oh 656 to start with for Ohio.

[thspfc]

There are many in WI but the longest one might be WI-131 at 79 miles. WI-80 is 176 miles long with only one four lane segment, which is in Platteville.

[webny99]

Without knowing any specific examples offhand, Northern New England, especially Vermont, seems like a good place to find some.

[ozarkman417]

The only one I know of for sure right now is MO-103.

Since the supplementary system is lettered, I will leave those out..

[oscar]

Without knowing any specific examples offhand, Northern New England, especially Vermont, seems like a good place to find some.

The Arctic would also offer good choices, if you're not too fussy about calling unpaved highways with no lane markings "two-lane". The largely unpaved 416-mile AK 11 (Dalton Hwy.) would be a candidate.

Alaska's fully paved highways have higher traffic volumes, and usually have turn or passing lanes here and there.

[JoePCool14]

WI-80 is 176 miles long with only one four lane segment, which is in Platteville.

I beg to differ on that one...

[JKRhodes]

Arizona's a tough one. Most routes run through a town or have something along their length that warrant multiple lanes, a passing lane or a turning lane.

Off the top of my head, State Route 97 is 11 miles and two lanes all the way. I'm open to other mentions if anyone knows any.

[Thing 342]

Was going to mention VA-40 at 219 miles ... if it weren't for a ~2 mile 4-lane segment near Rocky Mount.

VA-48 technically counts and is 323 miles long, but it's unsigned.

[KeithE4Phx]

Arizona's a tough one. Most routes run through a town or have something along their length that warrant multiple lanes, a passing lane or a turning lane.

Off the top of my head, State Route 97 is 11 miles and two lanes all the way. I'm open to other mentions if anyone knows any.

There are no paved roads that intersect with AZ 97, other than each end (US 93 and AZ 96).  There's no turn lanes at either intersection.

I'm not sure if there are any on AZ 96, either.

Edit:  There are no turn lanes anywhere on AZ 96, from Bagdad to Hillside, where 96 becomes CR 62.  However, CR 15 does have a left turn lane at its intersection with 96.

[TheHighwayMan3561]

Minnesota's really good about turn lanes and bypass lanes, so this is going to take time to figure out.

[JKRhodes]

Arizona's a tough one. Most routes run through a town or have something along their length that warrant multiple lanes, a passing lane or a turning lane.

Off the top of my head, State Route 97 is 11 miles and two lanes all the way. I'm open to other mentions if anyone knows any.

There are no paved roads that intersect with AZ 97, other than each end (US 93 and AZ 96).  There's no turn lanes at either intersection.

I'm not sure if there are any on AZ 96, either.

Edit:  There are no turn lanes anywhere on AZ 96, from Bagdad to Hillside, where 96 becomes CR 62.  However, CR 15 does have a left turn lane at its intersection with 96.

96 has a climbing lane about 15 miles east of Bagdad where it snakes up some S-curves, so it's out.

I've visited Bagdad a few times. I was certainly impressed by the quality of county roads between Bagdad and Prescott, and the relative lack of state highways serving the area.

[Dirt Roads]

VA-48 technically counts and is 323 miles long, but it's unsigned.

Actually, Skyline Drive and the Blue Ridge Parkway have extra turn lanes for short distances at many of the "interchanges".  In fact, there is a short section of 4-lane Skyline Drive over the bridge crossing Lee Highway (US-211) just outside of Sperryville.  Most of the "two-lane roads" that I last traveled now have these occasional or infrequent turn lanes.

[paulthemapguy]

I'm sure a bunch of the short rural roads in Illinois count, such as IL-147, IL-184, IL-152, IL-109, and IL-119.  I wonder if a few longer roads like IL-108 also make the cut.

[froggie]

Off the top of my head in Vermont:  5A, 65, 102, 122, 215, 232.

[Takumi]

Was going to mention VA-40 at 219 miles ... if it weren't for a ~2 mile 4-lane segment near Rocky Mount.

VA-48 technically counts and is 323 miles long, but it's unsigned.

VA 40 also has a very brief 4-lane segment near Stony Creek. The Virginia Highways Project mentions which of VA's primary highways is the longest with no multi lane segments, but I can't remember which one it is.

[ThatRandomOshawott]

I would assume lots of the Kentucky state routes that don't connect to an arterial route would fail to have a turn lane.

[wxfree]

How many numbered roads are there that only have 1 travel lane in each direction WITHOUT turning lanes for it's entire route? Seems like there shouldn't be that many, but I might be surprised how many there are. Preferably would like to find the longest route or a state route with only 2 lanes.

Example: FM 2185 in Van Horn, at 41.8 miles
https://www.google.com/maps/dir/31.0492629,-104.83149/31.4205144,-104.4539003/@31.2188837,-104.7352556,11.23z/data=!4m2!4m1!3e0

This needs updating.  FM 2185 was extended in 1968 SH 54 to FM 652, a little over 80 miles.  About 41 miles was built on the south end, and 6 miles was built at the north end, but the middle part was never built.  It's a series of unpaved county roads.  For a long time, FM 2185 had a about a 30 mile gap in it.  In 2006, the north end was redesignated as FM 3541.  Last month, in August, the old designation was restored.  FM 3541 is now FM 2185, and the unbuilt middle 30 miles is again designated.  The former FM 3541 has a split intersection with FM 652, where the road has 4 lanes (two turning to or from the west, and two turning to or from the east).  FM 2185 qualified until a month ago.

ftp://ftp.dot.state.tx.us/pub/txdot/commission/2020/0827/16e1.pdf

Here are some FM/RMs that qualify:
2886
1989
1312
864
2023
3078
1832
2119
2810
919
1437
1576
2249

Here are some more FM/RMs, but these are just a few miles long (or less):
2093
1706
3166
1859
3450

The easternmost I found is 3049.  It runs 4 miles from FM 67 to FM 934, near Whitney Lake, almost as far east as I-35.

I found three non-FM Texas examples.  One is Spur 77, if you consider the road as TxDOT has it mapped, which does not include the parking lot.  Another is Loop 293, which has an intersection with FM 11 in the middle, but has no intersections at its ends.  It simply converts to and from I-10 frontage roads.  The other is Park Road 5, which runs through Palo Duro Canyon State Park.  There are some other park roads that never have more than two lanes on a single roadway, but have a set of loops and spurs and are not continuous.

I really wanted a state highway example.  The closest I got were 128 and 254, but they have at least one turning lane at the intersection on the east end of each.

I just remembered the special highway.  TX 165, which runs to and through the Texas State Cemetery in Austin.  It runs along Comal St. from Seventh St. to the entrance to the cemetery, and along the cemetery drives.  The part in the cemetery has barely one lane, and has nightly closing hours.  The Comal St. section has only one motor vehicle travel lane in each direction.  It's very short, and is a special-use roadway, but it is a designated state highway.

[SectorZ]

I think I actually found a few in New England

MA 43
MA 78
MA 142 (VT 142 almost - it's northern end has a right turn lane to VT 119)
MA 148
NH 78

Probably others. They are the only ones I thought of looking at Google Maps and confirmed with it.

[Dirt Roads]

Amazingly, WV-501 (eastern end of Tyler Mountain Road) from North Charleston to Tyler Mountain is still two lanes for its entire route. 

Tyler Mountain Road breaks off to the north of WV-62 (old US-35 from before the Silver Bridge disaster) then crosses back over to the south of WV-62 at aptly named Cross Lanes.  However, the section west of Tyler Mountain is part of WV-622, which is routed up the Lanham Route (Rocky Fork and Martins Branch) to meet LSR-21 (old US-21) at Pocatalico.  The Lanham Route is also two lanes all the way, but the suburban section of WV-622 has been upgraded to 3 lanes and 4 lanes through Cross Lanes back to I-64.

[Dirt Roads]

VA-48 technically counts and is 323 miles long, but it's unsigned.

In this same vein, WV-150 (Highlands Scenic Highway) is all two laned.