Longest continuous yellow line involving two or more routes?

[hbelkins]

I know there've been discussions before on the longest continuous yellow line. How about the longest one involving two or more separate roads?

Here's one for consideration.

Beginning at the ramp from I-71 north to I-64 east in Louisville, then following I-64 east to Charleston. The yellow line then joins I-77 north where it continues until the left exit for I-70 west, then it follows I-70 west to Columbus, where it ends at the point where the lanes from I-71 south join the route.

[renegade]

I looks like it might break at I-79.  I-79 enters I-77 northbound from the left.  Any left exit or entrance will break a continuous yellow line.

https://www.google.com/maps/@38.380153,-81.609228,3a,75y,298.84h,81.01t/data=!3m6!1e1!3m4!1s6aMcxECGFIz0X_8OOER0AA!2e0!7i13312!8i6656

What about I-79 from Washington, PA to I-77 north in Charleston, then on to I-70 and I-71?

[pianocello]

Here's one that throws a state and US route in there: Starting at the west end of the Edens Spur in northern Cook County, IL, following I-294 and I-94 east to Ann Arbor, M-14 and US-23 north to I-96 at Brighton, I-96 to Grand Rapids, and I-196 and US-131. I was hoping it would make a loop and cross itself, but it ends at a left entrance in Grand Rapids.

[hbelkins]

I looks like it might break at I-79.  I-79 enters I-77 northbound from the left.  Any left exit or entrance will break a continuous yellow line.

Well crap. As many times as I've gone through that interchange, I didn't remember that.

[roadman]

The longest continuous yellow line (left edge line) in Massachusetts involving multiple routes appears to be Grant Circle in Gloucester to the HOV lane aka "zipper lane" entrance in Braintree.  MA 128 Gloucester to Peabody, I-95 Peabody to Canton **, I-93 Canton to Braintree - 63.6 miles.

** And yes, before anyone questions me, I accept that MA 128 is co-signed with I-95 between Peabody and Canton.  However, as 99.9% of the BGS panels, and 98.7% of the LGS panels, all mile markers, and all exit numbers south of Peabody correlate to the I-95 designation, and not MA 128, it is logical to consider I-95 as a separate route for the purposes of this topic

[jakeroot]

I-90 between Issaquah and western Montana has no breaks in the median until some truck weight station or something: 373 miles
I-5 between Portland and I-580 south of Sacramento: 664 miles

Mis-understood OP.

[lordsutch]

I think northbound you have a continuous yellow line starting at the beginning of the ramp to NB I-75 at FL 826 to the HOV exit at CW Grant Pkwy by ATL - there are no left entrances or exits northbound except I-475, and northbound I-475 also merges onto I-75 from the left.

Reckoning by exit numbers that's around 706 miles. When the reversible express lanes are put in place south of I-675, it'll be shortened a bit more.

Southbound I-75 is also a strong contender if you combine it with I-16 westbound. From the WB I-16 ramp from I-516 north in Savannah, you have a continuous left yellow line for the rest of I-16 (~164 miles), I-75 south from I-16 to Florida's Turnpike (~303 miles), and then  about 8 miles more to the Okahumpa service plaza, for a total of 475 miles.

[cl94]

Longest in New York alone is on the Thruway NB/WB from the Tappan Zee Bridge to the Tappan Zee Bridge at Nyack. Kind of cheesy to include it, but it does carry two separate designations.

If you want a long one that enters 5 states, I've got it. I-64 EB from the Pax toll barrier in West Virginia to I-81, then north on I-81 to NY 17, NY 17 west to I-390, I-390 north to I-590. 725 miles per Google Maps.

[jakeroot]

If you want a long one that enters 5 states, I've got it. I-64 EB from the Pax toll barrier in West Virginia to I-81, then north on I-81 to NY 17, NY 17 west to I-390, I-390 north to I-590. 725 miles per Google Maps.

I sure as hell ain't gonna verify it, but that's a great find if true.

[spooky]

Turns out my previous guess for longest continuous yellow line in Massachusetts was wrong.  Longest continuous yellow line in Massachusetts (mostly left edge line but includes a section of double yellow center line across the Sagamore Bridge) appears to be from the Orleans Rotary on Cape Cod to Grant Circle in Gloucester - US 6 Orleans to Bourne, MA 3 Bourne to Braintree, I-93 Braintree to Canton, I-95 Canton to Peabody **, and MA 128 Peabody to Gloucester - that's a distance of approximately 141.7 miles.  This is for the westbound/northbound direction along these routes only. 

I have revised my previous post accordingly.

** And yes, before anyone questions me, I accept that MA 128 is co-signed with I-95 between Canton and Peabody.  However, as 99.9% of the BGS panels, and 98.7% of the LGS panels, all mile markers, and all exit numbers between Canton and Peabody correlate to the I-95 designation, and not MA 128, it is logical to consider I-95 as a separate route for the purposes of this topic

MA 24 says "hey, remember me?"

Although I think now you can follow that yellow line from the Orleans Rotary almost back to the Cape: US 6 WB to MA 3 NB to I-93 SB to MA 24 SB to I-195 EB, ending at the on-ramp gore from I-195 EB to I-495 NB in Wareham.

[roadman]

MA 24 says "hey, remember me?"

          To quote Homer (Simpson) - D'oh!!!

(also, I've removed my second post)

[Brandon]

I-88 and I-290 have a continuous one in each direction from the interchange of I-88 with I-80 in the Quad Cities all the way east to the Harlem exit on I-290.  That's 146 miles for each direction.

I-55 south and I-74 east.  One continuous line from Lake Shore Drive around Bloomington to I-465 in Indianapolis.

[spooky]

If you want a long one that enters 5 states, I've got it. I-64 EB from the Pax toll barrier in West Virginia to I-81, then north on I-81 to NY 17, NY 17 west to I-390, I-390 north to I-590. 725 miles per Google Maps.

I sure as hell ain't gonna verify it, but that's a great find if true.

https://www.google.com/maps/@41.209381,-75.893443,3a,40.4y,74.47h,87.11t/data=!3m6!1e1!3m4!1sp1UUHrG_Fz9wa3wwQSwtfg!2e0!7i13312!8i6656

http://www.myinstants.com/instant/sad-trombone/

[apjung]

The yellow line starts in San Antonio on I-35, Exit 156 to I-10 West and goes all the way until it U-Turns back to I-10 East at I-20. It then goes on I-20 East until it meets a left hand entrance ramp from US 84 in Roscoe, Texas at Exit 238. Total estimated length, about 622 miles.

[vdeane]

Longest in New York alone is on the Thruway NB/WB from the Tappan Zee Bridge to the Tappan Zee Bridge at Nyack. Kind of cheesy to include it, but it does carry two separate designations.

Actually, the Thruway is a kinda impressive one.  Starts on the the Grand Central Parkway WB near NY 25A (at least upon the completion of the Tappan Zee project, depending on how you count the zipper lane), continues on the Triboro Bridge, I-87, the reference route, I-90, and the I-271 express lanes to I-480/US 422 (not factoring in toll barriers, in which case, truncate to Williamsville and the Triboro (Yonkers is due to be replaced with AET)).

[DandyDan]

I am not absolutely certain about this, but I believe when you go east on I-76 in Colorado, that goes east into I-80 across Nebraska to Iowa, follows I-80 to the east end of I-680, then goes west on I-680 until it merges into I-29.  OTOH, I have no idea how long that is.  I have no idea how the current construction in Council Bluffs will affect it.  It used to loop in on itself before the current I29/I-80 construction in Council Bluffs, as it went north on I-29, west and south on I-480 around downtown Omaha, then South on US 75, ultimately ending at the intersection with Grenoble Drive south of Bellevue, NE.

[bassoon1986]

I've got 2 in my area, both almost the exact same length.

I-20 EB from the US 259 left exit in Longview Tx to the US 61 NB exit in Vicksburg, MS: 241 miles
and I-20 EB from the US 61 left entrance in Vicksburg, MS, up I-220 in Jackson, north on I-55 to just past Crump Blvd in Memphis: 242 miles

[Super Mateo]

If I'm understanding this correctly, and didn't make any errors, I got this:

I-74 west, starting in Normal;
I-474 near Peoria, leading back to I-74 west;
I-74 west turns into I-80 west in the Quad Cities;
I-80 west to I-280, heading back south;
I-280 becomes I-74/I-280 east, then is I-80 east;
I-80 east to I-57 north near Country Club Hills;
I-57 north into the Ryan;
I-94 "west" to downtown Chicago, ending there.

It covers a few if IL's big cities.  It goes from Normal to Peoria to Moline, where it does a complete loop around town, to Chicago.

[empirestate]

Longest in New York alone is on the Thruway NB/WB from the Tappan Zee Bridge to the Tappan Zee Bridge at Nyack. Kind of cheesy to include it, but it does carry two separate designations.

How does it U-turn to go back to the TZB, and how far does it get before it does?


iPhone

[cl94]

Longest in New York alone is on the Thruway NB/WB from the Tappan Zee Bridge to the Tappan Zee Bridge at Nyack. Kind of cheesy to include it, but it does carry two separate designations.

How does it U-turn to go back to the TZB, and how far does it get before it does?


iPhone

I'm trying to remember what I was thinking when I posted this. Whatever it was, it's incorrect.

[empirestate]

Longest in New York alone is on the Thruway NB/WB from the Tappan Zee Bridge to the Tappan Zee Bridge at Nyack. Kind of cheesy to include it, but it does carry two separate designations.

How does it U-turn to go back to the TZB, and how far does it get before it does?


iPhone

I'm trying to remember what I was thinking when I posted this. Whatever it was, it's incorrect.

Oh. I was picturing the yellow line traveling from the Tappan Zee all the way up to, say, the Williamsville toll barrier, where it wraps around the end of the median and returns to the Tappan Zee in the other direction. But I don't know if that's accurate; there's quite possibly something else that interrupts the yellow line in between. (Though not the Woodbury barrier, because it now has the on-the-fly center lanes.)

[Jim]

Oh. I was picturing the yellow line traveling from the Tappan Zee all the way up to, say, the Williamsville toll barrier, where it wraps around the end of the median and returns to the Tappan Zee in the other direction. But I don't know if that's accurate; there's quite possibly something else that interrupts the yellow line in between. (Though not the Woodbury barrier, because it now has the on-the-fly center lanes.)

EB Exit 24's left exit breaks things on the "return trip", if I'm following this game correctly.

[TheHighwayMan3561]

Not entirely sure about this one, but:

Yellow line forms on I-90 westbound in Madison, WI at Exit 138, follows uninterrupted to Buffalo, WY.
Transitions onto I-25 southbound from Buffalo to the US 26 split near Guernsey, WY where a left merge from US 26 interrupts the yellow line.

[dgolub]

Longest in New York alone is on the Thruway NB/WB from the Tappan Zee Bridge to the Tappan Zee Bridge at Nyack. Kind of cheesy to include it, but it does carry two separate designations.

Actually, the Thruway is a kinda impressive one.  Starts on the the Grand Central Parkway WB near NY 25A (at least upon the completion of the Tappan Zee project, depending on how you count the zipper lane), continues on the Triboro Bridge, I-87, the reference route, I-90, and the I-271 express lanes to I-480/US 422 (not factoring in toll barriers, in which case, truncate to Williamsville and the Triboro (Yonkers is due to be replaced with AET)).

Wait, it counts as continuous if it's broken by illegal U-turns?

[jeffandnicole]

Longest in New York alone is on the Thruway NB/WB from the Tappan Zee Bridge to the Tappan Zee Bridge at Nyack. Kind of cheesy to include it, but it does carry two separate designations.

Actually, the Thruway is a kinda impressive one.  Starts on the the Grand Central Parkway WB near NY 25A (at least upon the completion of the Tappan Zee project, depending on how you count the zipper lane), continues on the Triboro Bridge, I-87, the reference route, I-90, and the I-271 express lanes to I-480/US 422 (not factoring in toll barriers, in which case, truncate to Williamsville and the Triboro (Yonkers is due to be replaced with AET)).

Wait, it counts as continuous if it's broken by illegal U-turns?

Illegal u-turns shouldn't have a break in the yellow line to begin with.