State (or County) Line Roads

[doorknob60]

Can-Ada Rd. straddles the line between Canyon County and Ada County, ID.


(The red is Ada county, the border shifts exactly 2 miles east, to McDermott Rd., south of Ustick, so this same thing exists there too)

Here is an interesting bit from Ada County Highway District (responsible for all public non-state maintained roads in the entire county) about this road:

Can-Ada Road (the hyphen/capital "A"  is necessary to avoid confusing our bordering friends to the north) is Ada County's northwest border with Canyon County.

Several road agencies manage the road. North of Ustick Road, it's maintained by Canyon Highway District Number 4. Between Ustick and Cherry Lane, Can-Ada falls under the jurisdiction of the Nampa Highway District. South of Cherry, where the road is in need of attention, the name changes to Idaho Center Boulevard and is the responsibility of the city of Nampa. Keeping up with who is in charge can get confusing when you depart "one-highway-district"  Ada County.

Source: http://www.achdidaho.org/Departments/PR/RoadWizard/Entries.aspx?MID=444

[coatimundi]

Here is an interesting bit from Ada County Highway District (responsible for all public non-state maintained roads in the entire county) about this road:

Can-Ada Road (the hyphen/capital "A"  is necessary to avoid confusing our bordering friends to the north) is Ada County's northwest border with Canyon County.

"I don't think this is right..."
"What? The road says it goes to Canada."

So I guess the "Can" is first because a Canyon County agency always maintains it. Seems like they should have just sucked it up and made it "AdaCan Road" if they were concerned about the confusion.

Geez, I wish my highway department had a QA feature...

[Sam]

any roads that follow a certain boundary but are named for a lower-order boundary instead? For example, a road along a county line called Town Line Road, or along a state line called County Line Road?

West Townline Rd., the western boundary of the town of Junius, NY,  is also the boundary between Ontario and Seneca counties.

[gonealookin]

Stateline Avenue in South Lake Tahoe extends northwest from US 50.  According to the El Dorado County assessor's map as superimposed on satellite imagery, the entire street and just about all of the sidewalk are in California with the actual state line being very close to the edge of the Harvey's hotel/casino building.

After a couple hundred yards, Stateline Avenue bends away from the state line into California, while the state line continues across the Edgewood golf course to Lake Tahoe.  When you play the 9th hole at Edgewood, you hit your tee shot out of California into Nevada.

[TEG24601]

WA/ID 41 in Newport, WA.  The road is technically Idaho Highway 41, but because it straddles the state line on State St., it was signed as both.

[cpzilliacus]

Let's not forget:

Reminds me of DE/MD 54. In addition to the state highway meandering over the line several times, there are other pieces of road (like Line Church Rd.) that follow the border, and aren't straight lines themselves. At the eastern end of the border, Williamsville Rd. in DE becomes Delaware Rd. in MD, serving a development with no connection to the rest of the state, then becomes Williamsville Rd. once more in DE.

Not that far away (but on the other side of the state, about 35 miles away (hey, it's a small state with an odd shape)), there's another road that hugs a Maryland state boundary. 

That would be Swan Gut Road, most of which is also VA-679, but according to the VDOT county atlas maps that Mapmikey recently shared, is on the state line (Worcester County, Maryland to the north, Accomack County, Virginia to the  south). 

Not clear if Maryland (or Worcester County in particular) helps to fund any of the maintenance cost for this road.

[TR69]

Here's another example of a numbered, signed state route on a state line. In the first picture below, we're traveling westbound on OH 111. We're coming up to a T intersection, with the crossroad being the state line.



In the photo below we've made the left onto State Line Road, heading south. So, the OH 111 shield pictured below is, theoretically, on Indiana soil. I say "theoretically" because I suppose it's possible that the true state line could be the ditch running along the right side of the road.

OH 111 only proceeds for 2/3rds of a mile on State Line Road and then just ends, unceremoniously, in the middle of nowhere. It doesn't end at another numbered highway or in a town. The 111 designation just ceases to be. My guess is that traffic on this route is usually heading from Paulding to Woodbury/US 24/Fort Wayne. ODOT took traffic along this pathway for as long as it could...up to the point where motorists would turn right into Indiana.



These photos were taken in Spring 1998.

[epzik8]

There's a County Line Road between Adams and York counties, Pennsylvania that crosses U.S. Route 15.

[corco]

WA/ID 41 in Newport, WA.  The road is technically Idaho Highway 41, but because it straddles the state line on State St., it was signed as both.

Got it backwards- it's technically both and has only ever been signed as Idaho 41.

[WillWeaverRVA]

Let's not forget:

Reminds me of DE/MD 54. In addition to the state highway meandering over the line several times, there are other pieces of road (like Line Church Rd.) that follow the border, and aren't straight lines themselves. At the eastern end of the border, Williamsville Rd. in DE becomes Delaware Rd. in MD, serving a development with no connection to the rest of the state, then becomes Williamsville Rd. once more in DE.

Not that far away (but on the other side of the state, about 35 miles away (hey, it's a small state with an odd shape)), there's another road that hugs a Maryland state boundary. 

That would be Swan Gut Road, most of which is also VA-679, but according to the VDOT county atlas maps that Mapmikey recently shared, is on the state line (Worcester County, Maryland to the north, Accomack County, Virginia to the  south). 

Not clear if Maryland (or Worcester County in particular) helps to fund any of the maintenance cost for this road.

VDOT's traffic logs imply that all of SR 679 is maintained by VDOT and not by any other jurisdiction. That road intersects MD 12 west of Greenbackville, and it's the only case I'm aware of where VDOT signs another state's route inside one of its small white rectangles.

There's also an intersection in Greenbackville itself that is on the state line; SR 3001 Ellis Street meets SR 3002 Stockton Avenue (which becomes Greenbackville Road at this intersection).

[corco]

South Dakota 20 begins as an unpaved road along the Montana line - to the right is SD and to the left is MT:



Unsigned Oregon 454 parallels the Idaho line for about a mile - the paved portion of State Line Road is maintained by ODOT.




Then there's always Alberta/Saskatchewan 17


And then Boundary Rd/0 Ave along the WA/BC border - here just east of Lynden (and now reconstructed, apparently).

[Inyomono395]

There is a county maintained Road just north of Bishop California that straddles Inyo and Mono counties. It's simply called Boundary Road.

[The High Plains Traveler]

If I drive from my house to Denver on I-25, there are three exits marked "County Line Road". (Though not all of them necessarily run directly on the county line). There is Exit 116 at the Pueblo-El Paso County Line, Exit 163 (El Paso-Douglas) and Exit 195 (Douglas-Arapahoe).

[roadman65]

DE-MD 54 along the south border of DE and the Central NE Eastern Shore of MD border.

State Line Avenue in KC Metro. It is in various segments, but most notable is on I-435.

State Line Avenue in Texarkana stands out along US 71 with Miller County, AR showing off its liquor stores to dry Baker County, TX right across the street.

County Line Road between Hillsborough and Polk Counties in Florida.

Man too many as I am sure it could take over 100 pages to list every one of em!

[Bitmapped]

There are several roads in McDowell County, West Virginia that are either on the Virginia state line or bounce back and forth. Part of WV/VA 83 is directly on the line and is maintained by Virginia. WV 161 is immediately adjacent to Horsepen Creek, the state line, for a number of miles, and is maintained by WV even when it briefly crosses into Virginia at Bishop. The states seem to have divided county/secondary route mileage so they're roughly even.

There are also some US Forest Service-maintained forest roads along the Virginia/West Virginia state line in Pocahontas and Pendleton counties.

[Rothman]

The Blue Ridge Parkway weaves back and forth across county lines pretty closely.

[Super Mateo]

The State Line Road at the IL/IN border is in the south suburbs of Chicago.  What I find interesting is the traffic lights.

Starting from the north:
State St.: Completely IN setup.  Yellow paint, a doghouse p/p, no backplates or stop bar lights.
Sibley Blvd.: Completely IL setup.  Black paint, inline five section p/p, with backplates on mast arm signals and the existence of stop bar signals.
Memorial/Rimbach: Completely IN.  Diagonal mast arms with far left freestanders on State Line.
River Oaks/165th St.: Combination.  The west side has a classic IL truss and full visors.  The IN side had a mast arm bar with the lights hanging from it and half visors.  It appears that replaced lights have all taken the IL style on either side.

[empirestate]

The Blue Ridge Parkway weaves back and forth across county lines pretty closely.

I guess that makes good sense, since it and the county lines both have the same m.o.: to follow the ridgelines.

[The High Plains Traveler]

In the Twin Cities area, there is a single north-south street that forms the border between Ramsey (on the west) and Washington Counties. Outside of a couple of jogs at an interchange and going around a lake, the road pretty much straddles the county line. The road is about 11 miles long, and some of it is still a state highway (MN-120). The rest is divided between the two counties, which from the MnDOT county map series it appears have divided the segments between the counties into approximately equal portions. I don't know whether the routes are marked in these segments; both counties are pretty good about signing their county roads. The name also differs depending on what side of the road you're on; on the west, most of it is Century Avenue (so named because at one time it was part of MN-100). The east side is Geneva Avenue, which fits into Washington County's alphabetical street name system.

[MNHighwayMan]

In the Twin Cities area, there is a single north-south street that forms the border between Ramsey (on the west) and Washington Counties. Outside of a couple of jogs at an interchange and going around a lake, the road pretty much straddles the county line. The road is about 11 miles long, and some of it is still a state highway (MN-120). The rest is divided between the two counties, which from the MnDOT county map series it appears have divided the segments between the counties into approximately equal portions. I don't know whether the routes are marked in these segments; both counties are pretty good about signing their county roads. The name also differs depending on what side of the road you're on; on the west, most of it is Century Avenue (so named because at one time it was part of MN-100). The east side is Geneva Avenue, which fits into Washington County's alphabetical street name system.

Of course, how could I forget this one? I even have a picture: south of I-94, old MN-120 is now CR-25/72:

[michravera]

So living where I am now, my apartment is in Missouri, but only about three blocks away from Kansas. Right on the state line in this area (except for a two block deviation due to a waterway,) there is State Line Road, which sits right on the state line between Missouri and Kansas. It's aptly named - literally, one can walk from one state to the other by crossing the road.

This has led me to ask, are there any other prominent roads such as State Line? I know there's another such road in Texarkana, but are there any others y'all can think of?

It's not that prominent or that long (a couple hundred meters) but there is a State Line Ave between South Lake Tahoe, California and Stateline(which may have been renamed "Lake Tahoe"), NV
There is also a road near the border between Nevada and California near Primm that is called "State Line Rd", but it may not exactly follow the border.

[Bruce]

The Snohomish-King county line runs along N 205th Street/244th St SW, which includes a segment of WA-104: https://goo.gl/maps/VQGEL7uzaMx

[epzik8]

There's one on the Montgomery-Bucks County line in Pennsylvania as well.

[SD Mapman]

South Dakota 20 begins as an unpaved road along the Montana line - to the right is SD and to the left is MT:

That's one segment of 100th Avenue (along the SD-MT/WY border). 100th Street is the SD/ND border (where there's actually roads). I think the SD/NE border West River is 304th Street.
Because of our statewide grid, there really aren't that many "State Line" or "County Line" roads (the Meade/Pennington county boundary is 225th Street). In Sioux Falls, the Minnehaha/Lincoln border is 57th Street.

[US71]

I found a state line rd near Bloomburg, Texas. It straddles the Arkansas-Texas State Line as Miller (Ark) 155 and Cass (Texas) 4924.

There's an advance notification for Cass 4924  heading WB on TX FM 249, PLUS a Miller 155 sign at the state line.  The road has both designations posted, as well.