I'm a new member and taking in all the forums in a short time. I saw this topic mentioned somewhere here, but never found the actual thread. If it exists, it's too old to continue anyway.
Notice that in Washington State, the mileage continues on the bridge over/under the same intersecting highway, and not down the enter/exit ramps, which would vary depending on direction. Not included are multiplexes that enter/exit a more dominant freeway.
Washington State:
SR 422 at Tennant Way: West 422 must exit or it continues as Tennant Way, a City of Longview street. This interchange is at the south end of SR 411, and itself soon ends at the short SR 433, the Lewis and Clark Bridge over the Columbia River. Diagram (http://www.wsdot.wa.gov/mapsdata/tools/InterchangeViewer/pdf/SR432/432X007.pdf) Google Maps (https://www.google.com/maps/@46.119882,-122.9343978,15z)
US 101 at SR 8: Northbound 101 must exit or continue as SR 8. Southbound 101 narrows to one lane and becomes an on ramp. Diagram (http://www.wsdot.wa.gov/mapsdata/tools/InterchangeViewer/pdf/SR101/101X361.pdf)
SR 7 at S 38th Street: This is the end of a stub built as part of the Intersate 5 project. The proposed freeway would have gone to Parkland before rejoining surface SR 7. There is also a diamond-shaped patch of trees visible on Google Maps (https://www.google.com/maps/@47.1585119,-122.424116,1068m/data=!3m1!1e3) that was to be the cloverleaf interchange with SR 512, but the freeway is now so abandoned that someone has built condos just south of where the freeway would have gone through. Diagram (http://www.wsdot.wa.gov/mapsdata/tools/InterchangeViewer/pdf/SR007/007X057.pdf)
SR 509 at Des Moines Way South: Southbound traffic missing the exit continues on past the south end of Sea-Tac Airport. Temporary end pending new freeway construction Diagram (http://www.wsdot.wa.gov/mapsdata/tools/InterchangeViewer/pdf/SR509/509X023a.pdf)
SR 99 at First Avenue Bridge: At the north end of the freeway, north traffic must wait at a left turn light and then use an on ramp to the bridge. South 99 must exit from near the north end of SR 509 and make a nearly complete helix before waiting at the light for north 99 turns. Diagram (http://www.wsdot.wa.gov/mapsdata/tools/InterchangeViewer/pdf/SR099/099X026.pdf)
SR 504 at Coldwater Ridge Visitor Center, near Mt. St. Hellens. This one puzzles me. I've never been there, but I don't see why this interchange exists unless there is steep terrain or high volumes expected. Eastbound 504 must exit or continue to the visitor center, though there is a second chance left turn available. Westbound uses the cloverleaf, which is part of the official highway mileage. Diagram (http://www.wsdot.wa.gov/mapsdata/tools/InterchangeViewer/pdf/SR504/504X042.pdf) Google Maps (https://www.google.com/maps/@46.3014102,-122.2718004,16.03z)
No longer qualifies:
SR 99 at SR 599 and Marginal Way East: South traffic used to have to exit to Pacific Highway South/International Boulevard or continue as 599. Now 99 has been deleted south of here to the junction with SR 518, with no listed or official multiplexing. Diagram (http://www.wsdot.wa.gov/mapsdata/tools/InterchangeViewer/pdf/SR099/099X022.pdf)
Oregon:
I-5 at I-405 (south end) and Harbor Drive. South I-5 exits on a flyover, while left lanes continue on as I-405. North I-5 exits while left lanes continue as Harbor Drive. I-5 alignment was planned as being on the west side of the Willamette River. Though the removal of that freeway is much celebrated by Portland residents, I-5 still dominates the east side of the river. Google Maps (https://www.google.com/maps/@46.3014102,-122.2718004,16.03z)
I-84 westbound at I-205: left lanes continue as I-205. This was in anticipation of the canceled Mt. Hood freeway. Google Maps (https://www.google.com/maps/@45.5459717,-122.5545426,16z)
CA 1 jumps on and off US 101 a ton of times during the full course of its routing. Near me CA 63 jumps on the CA 198 Freeway for less than a mile rather than using surface streets.
Low-hanging fruit: US 40 with I-70 and US 30 with I-80 (the interstates largely supplanted the US Highways outside major urban areas). US 9 and the Garden State Parkway have a similar relationship from Toms River south.
However, what first came to mind were OH 16 and OH 37. OH 16’s freeway goes on as OH 161 west of Granville. US 41 off Lake Shore Drive also qualifies.
This is so common a situation as to have its own acronym: TOTSO (Turn Off To Stay On), which applies also to routes exiting a freeway to continue on another freeway. Two examples of many:
FL 826 does this in Miami Gardens, within the complex Golden Glades Interchange, connecting between the Palmetto Expressway and NW 167th St.
AK 1 leaves the freeway east of Wasilla to continue as a non-freeway to Palmer and beyond. The freeway continues to Wasilla and beyond as AK 3.
I remembered another one. Where the Trans-Canada Highway leaves the freeway eastbound approaching Hope, there is actually a sign, "Trans-Canada Highway Leaves Freeway Next Exit" (https://goo.gl/maps/FrWydmbHYep) Otherwise it continues on to PR 3, and to an optional toll highway to Kamloops.
There are places in Michigan where a state highway joins a freeway for a while, and then exits again. Examples:
M-55 in mid-state (I-75)
M-37 in Grand Rapids area (I-96)
M-46 north of Grand Rapids (US-131)
M-66 in Battle Creek (I-194)
Is that the kind of thing you are looking for?
UT-201 exits the 201 Freeway at 900 West and jogs over to 2100 South. Prior to the Olympic reconstruction, there was a direct connection between 2100 South and the freeway, so both portions were designated SR-201 (actually, that designation pre-dates the freeway). That connection was removed, leaving 201 as a discontinuous route requiring an implied connection on 900 West.
I'm not sure if this counts as a freeway, but US 85 must use an exit to leave CO 115 south of Colorado Springs. 85 isn't signed, and the exit number is based on 115 mileage.
Powers Blvd and Platte Ave in Colorado Springs is another. The junction is set up with Powers as the freeway mainline, but eastbound 24 must exit to eastbound Platte Ave to continue. Northbound Powers continues as CO 21.
I'm just going to say: I-74 and every US and IN route that goes around Indy on the I-465 Beltway
Thanks to all the new freeways here, this is common in North Carolina. US 64 and 1 both join I-40/440 and they both take exits off of the freeway. Extreme examples are US 19, 23, 25 and 70 on I-26, and US 29, 70, 220, and 421 on the 50 million Interstates in Greensboro.
San Angelo, Tx has three of these on its two freeways. The main freeway runs from northeast to southwest on the north side of town and then curves around to the southeast on the south side. US 67/277 enters town on the freeway from the northeast. US 277 exits the freeway and joins US 87 to run south through town along the main road. US 67 exits the freeway to continue southwest where the freeway curves around and becomes Loop 306. That part of the freeway runs southeast to US 87/277, which is on another, short, freeway that continues south and onto a short stretch of US 87 and Loop 306 after US 277 exits from that freeway.
Quote from: Max Rockatansky on May 27, 2018, 07:18:29 PM
CA 1 jumps on and off US 101 a ton of times during the full course of its routing.
CA 1 also exits off of I-280 at Daly City right before it enters San Francisco (and that's the penultimate exiting before it exits US 101 at Mill Valley for the last time going North!)
Several state highways in California also join US 101 in a concurrency while it is a freeway and eventually exit, I have traveled on CA 84, 128, 152, and 156 where that occurs.
Quote from: CrystalWalrein on May 27, 2018, 07:45:17 PM
Low-hanging fruit: US 40 with I-70 and US 30 with I-80 (the interstates largely supplanted the US Highways outside major urban areas).
U.S. 40 also shares a fair number of miles in Western Maryland with I-68, after it leaves I-70 near Hancock. It runs concurrent with I-68 for about 67 miles to Keyser's Ridge, where it exits the freeway, and then runs roughly northwest in the direction of Uniontown, Pennsylvania, eventually returning to U.S. 40 near Washington, Pennsylvania. I-70 and U.S. 40 stay relatively close from there as far west as Colorado, where they separate for the last time west of Denver.
Quote from: CrystalWalrein on May 27, 2018, 07:45:17 PMHowever, what first came to mind were OH 16 and OH 37. OH 16's freeway goes on as OH 161 west of Granville.
That whole situation is going to get even sillier once all the exits are numbered (right now only three are in Licking County). I think there's probably going to be a stretch of exits numbered something like 57-105-27.
I don't know whether this would qualify, but...
When US 167 was converted to I-49 between Lafayette and Opelousas, the original plan was for 167 to follow the original path through Opelousas, entering concurrent with US 190 via the Landry St./Vine St. couplet, then turning north via the Union St./Main St. couplet to Church St., and then out of O-Town through Main Street on to Nuba. From Opelousas to the community of Nuba, 167 would follow LA 182, but at Nuba 167 would turn west (left) on its way to Ville Platte with LA 10 West, while LA 182 would continue straight north with LA 10 West to Washington.
However, when US 167 was freewayized as part of I-49, LADOTD decided that the best means to resolve routing 167 was to extend it along the newly constructed I-49 a bit to the north for about 4 miles to a new interchange with a new road extending straight west from there to the US 167/LA 10/LA 182 intersection near Nuba. That roadway got the US 167 designation, along with the 4 mile "extension" along I-49 from Opelousas north (of course, the concurrency extends south to Lafayette); while the run through the city via 190 and 182 was removed.
That's probably the only example of leaving a freeway I know as of right now.
US 1&9 exit the Pulaski Skyway which continues as NJ 139. The northern terminus of the short US 202/206 freeway has the freeway become an on-ramp to I-287 while 202/206 themselves exit it. NJ 42's freeway section pretty much flows into the beginning of the Atlantic City Expressway, though the continuation of NJ 42 is not presented as an exit, but a 50/50 split. I'm not including US and state routes which hitch a ride on Interstates / toll roads as that would be a very long list.
The north end of the freeway portion of GA 141 (https://www.google.com/maps/@33.9455944,-84.2368725,3a,75y,45.55h,91.28t/data=!3m6!1e1!3m4!1srQqxLmlsfpwdMZt0ekHlXQ!2e0!7i13312!8i6656) is presented as a 50/50 split, but based on ramp topography I think you can make an argument that the continuation of 141 is a left exit. Google agrees, marking 141 as a ramp and Peachtree Industrial as the mainline.
The I-15/84 interchange in Tremonton, UT might qualify. I-15 is presented as the major road on the 15/84 overlap, and exit numbers are based on I-15. However, the actual junction is set up as a trumpet interchange with I-84 as the mainline.
The signs leading up to the interchange show the I-84 mainline as a left exit 379, a number based on I-15 mileage. (The diagrammatics on these signs are wrong, but that's another story.) But when you get up to the actual split, the BGS there has no exit numbers at all, and the exit sign in the gore shows I-15 taking its own exit 379.
Several in Indiana:
US 6 is multiplexed with I-80/94 between IL 83 and IN 51 so you must get on/off a freeway to follow US 6
US 41 is multiplexed with I-80/94 between Calumet Ave and Indianapolis Blvd so you must get on/off a freeway to follow US 41
US 20 westbound exits the South Bend bypass
IN 331 is multiplexed with US 20 between Bremen Hwy and Elm Rd. so you must get on/off a freeway to follow IN 331.
US 31, US 36, US 40, US 52, US 421, IN 37 and IN 67 all multiplex with I-465 and require getting on/off freeways to follow.
US 24, US 30 and US 33 all multiplex with I-469 and require getting on/off freeways to follow.
IN 62 requires getting on/off freeways to follow around New Albany/Jeffersonville
I-96 exits itself once in each direction in the Grand Rapids area. Eastbound, I-96 goes off to the left while (unsigned) I-296 continues straight just east of Alpine Ave. Westbound, I-96 goes off to the right while I-196 continues straight ahead just west of East Beltline Ave.
Speaking of I-96, M-37 exits off it at Alpine Ave westbound and at East Beltine Ave eastbound.
Connecticut has so many of these:
US 1 twice with I-95. Once to cross the Connecticut River on the Baldwin Bridge, and again toncross the Thames on the Gold Star Bridge.
US 5 leaves CT 15 in East Hartford just north of the Charter Oak Bridge.
US 6 3 times with I-84. Danbury-Bethel, Newtown-Southbury, and Farmington-Manchester. US 6 also briefly piggybacks on the CT 8 expressway in Thomaston. It also exits itself at the east end of the Willimantic bypass.
CT 2A exits I-395 to form its own brief expressway past Mohegan Sun.
CT 17 with CT 9 in Middletown. South end has a brief CT 17 expressway.
US 44 for about a half mile with I-84 (and US 6) to cross the Bulkeley Bridge.
US 202 with I-84 (and US 6 and 7) and a small piece of US 7 in Danbury.
CT 32 exits the CT expressway in Norwich westbound after duplexing through Norwich.
The 8/25 split is debatable which leaves which.
Couple I can think of in RI: US 6, US 44, and US 1A with I-195. US 6 with I-95, and US 6 on the c/d roads of I-295. Also a brief US 1 overlap with I-95 in Pawtucket.
There had to be a thread on m.t.r that covered TOTSOs.
Quote from: ilpt4u on May 27, 2018, 11:49:41 PM
I'm just going to say: I-74 and every US and IN route that goes around Indy on the I-465 Beltway
Technically that's not true for I-74 since both junctions (SE Side & in Speedway) are freeway-to-freeway for both directions of travel. Also, it is not true for US 31's north junction (uses the new US 31 Fwy), US 52's north junction (multiplex on I-865), and SR 37's north junction (multiplex on I-69) for the same reason. Once I-69 Phase 6 is completed, the south junction of I-69 & SR 37 will use the planned I-465 Exit 5 system interchange, to be built just west of the existing SR 37 diamond interchange at Harding Street.
US 95 South Exits I-11 Bolder City, NV
US 60 West Exits I-17 At Thomas RD Phoenix, AZ
The one that immediately pops to mind as a prime example of this: CT 20 at the Windsor Locks / Windsor / East Granby tripoint -- traffic headed westbound exists the Bradley Airport Connector to continue on CT20 towards Granby, while the freeway continues north a fraction of a mile before ending at an under-construction roundabout.
It might be shorter to list the US Routes that don't do this.
Listing only US Routes I have traveled on and only locations I've seen in person:
1: Haven't seen it myself, but an above post confirms it as a yes.
6: Yes (Lansing, IL; Lake Station, IN; Des Moines, IA; Moline, IL; Davenport, IA)
11: Yes (I-77 in western VA)
12: Yes (Cline Avenue in IN)
14: Haven't been there, but I think it hops off the Madison Beltway
15: Don't know, didn't happen in the two portions I've been on
18: Same as 14
19: Yes (Bounces on and off I-376 in Pittsburgh, PA)
20: Yes (Harrison/I-39 in Cherry Valley, IL)
21: No idea
22: Likely in PA somewhere
23: Maybe
24: Yes (Logansport, IN bypass)
25: Don't know
27: Yes (Colerain, OH)
30: Yes (Fort Wayne, IN)
31: Yes (Indianapolis, IN)
33: Yes (Fort Wayne, IN)
34: Becomes the freeway in western IL, not sure if a ramp is required somewhere
35: Yes (Muncie, IN; Kokomo, IN)
36: Yes (Indianapolis, IN); but has a reverse situation eastbound near Decatur, IL where the freeway leaves instead
40: Yes (IL side of the St. Louis area)
41: Yes (Lake Shore Drive on the north side of Chicago, IL; I-80 in Hammond, IN)
45: Probably, but not in the parts I've driven
50: Don't know
51: Yes (South Beloit, IL; Bloomington, IL)
52: Yes (Indianapolis, IN; near the IN/OH border; Cincinnati, OH; Huntington, WV; Bluefield, WV; Bland, VA; Wytheville, VA)
61: Yes (Davenport, IA; Frontenac, MO)
62: Don't know
63: Don't know
65: Yes (Des Moines, IA)
67: Maybe, but nowhere north of St. Louis)
68: Don't know
69: Don't know
74: Don't know
I won't bother going into the 3dus, but it looks like this is quite common. Every single one is either a yes or a don't know (and don't have the desire to look it up).
Quote from: Super Mateo on May 30, 2018, 10:37:09 PM
It might be shorter to list the US Routes that don't do this.
Haha, that is certainly the truth by the looks of it.
Quote from: Super Mateo on May 30, 2018, 10:37:09 PM
23: Maybe
25: Don't know
23 has the reverse, where the Interstate it travels on (26) ends, however 25 does in fact leave (the same interstate, on the same part even)
Quote from: Super Mateo on May 30, 2018, 10:37:09 PM
It might be shorter to list the US Routes that don't do this.
To be fair, I think the OP was going for TOTSO situations only, where a route exits its own freeway, because of this:
Quote from: ErmineNotyours on May 27, 2018, 06:59:05 PM
Not included are multiplexes that enter/exit a more dominant freeway.
That said, the discussion seems to have broadened into every situation where a route leaves a multiplex on a freeway. In Utah this happens to I-80 and 84, US-6, 50, 89, 189, and 191, and UT-30.
US 3 in New Hampshire. The freeway continues as the unnumbered Everett Turnpike.
Well, in that case, some (I think) not mentioned in NJ:
US 40 exits I-295 together with the NJ Turnpike. Then it exits the Turnpike almost immediately.
US 130 has a multiplex with I-295
US 46 exits itself in both directions. The thru freeway becomes NJ 20 north of this and NJ 21 south
US 1/9/46 multiplex ends southbound with 46 remaining the thru freeway
All of the above multiplex with I-95 as well
US 206 exits the afore-mentioned US 202/206 multiplex southbound shortly before US 202 ceases to be a freeway
I-676 and US 30 split up right after entering NJ, though it's not clear which one is the thru freeway there
There is an I-78/US 22 multiplex
Also I-287/NJ 17
I-80/US 202
I'm sure I'm missing some
Among the numerous examples of this here in Wisconsin, likely the most interesting is WI 29 in the Green Bay area. WI 29 exits its freeway at Packerland Dr to continue eastward into Green Bay as Shawano Ave, while the major cross-state highway that it followed from I-94 a bit west of Eau Claire continues on one more interchange eastward to I-41 as WI 32.
Mike
MN 5 in Eden Prairie where it joins I-494. It counts to me because it predated US 212, where a formerly unnumbered route connected 494/5 and US 212 before the new US 212 alignment opened.
Here's the ones I know of:
CT: US 1 with I-95, US 5 with CT 15, US 6 with I-84 (multiple times), US 6 with CT 8, US 7 with I-84 in Danbury, US 44 with US 6 in Bolton, US 202 with US 7, I-84 and CT 10, CT 2 and CT 32 outside Norwich
RI: US 6 and RI 10 in Providence.
MA: I-95 and MA 128 near Danvers (?), I-91 and US 5 in Springfield
NY: NY 17 (temporarily) leaving I-86 in the vicinity of Windsor, though some shields are visible,
Quote from: RobbieL2415 on June 01, 2018, 04:35:05 PM
MA: I-95 and MA 128 near Danvers (?)
Peabody
Quote from: RobbieL2415 on June 01, 2018, 04:35:05 PM
NY: NY 17 (temporarily) leaving I-86 in the vicinity of Windsor, though some shields are visible,
Where does NY 17 exit the freeway?
Imo none of the Interstate ones should exist. Beginnings and ends of concurrencies between Interstates should not have an exit number (except from the direction where you are joining the concurrency) because two equal routes splitting should be treated equally even if one leaves on a low-speed ramp. In the case of a TOTSO where the Interstate exits on a loop ramp and a state or US route continues the mainline, the mainline should be an "exit" with a number and lane distribution arrows, but no "exit only" since you don't have to slow down. At the same time the TOTSO ramp should have speed warnings and such, but no exit no tab and no upright arrow. I don't mind the downward angled arrow though.
On a seperate note I feel like concurrencies between Interstates, beyond having both ends of the concurrency unnumbered, should either have unnumbered exits for the duration of the concurrency, or have their own exit number sequence and mileage, or maybe post the exit numbers from both routes but that would be confusing. And to answer your question about situations like I-287 or the Capitol Beltway, in the case of the beltway it basically already has its own sequence because of the state line right near the beginning of the concurrency. As for I-287, I would just get rid of the concurrency altogether because there is effectively a New York 287 and a New Jersey 287 which I would just split up. We can overlook the "no duplicates" rule for the 50 feet of the New Jersey 287 that connect into NY to 87.
IL 53 does this. It exits the freeway at Dundee Road, yet the freeway continues another mile or so to Lake-Cook Road.
Quote from: ilpt4u on May 27, 2018, 11:49:41 PM
I'm just going to say: I-74 and every US and IN route that goes around Indy on the I-465 Beltway
Also I-465 itself - going anti-clockwise around the city, in the northwest corner I-865 is the 'straight ahead' route and I-465 exits to continue southward in its endless trip around the city.
Mike
Quote from: ibagli on May 29, 2018, 02:10:37 AM
Quote from: CrystalWalrein on May 27, 2018, 07:45:17 PMHowever, what first came to mind were OH 16 and OH 37. OH 16's freeway goes on as OH 161 west of Granville.
That whole situation is going to get even sillier once all the exits are numbered (right now only three are in Licking County). I think there's probably going to be a stretch of exits numbered something like 57-105-27.
Does ODOT have any plans to give that highway a single route number (ie, the lowest available 'OH x70' number)?
:hmmm:
Mike
Quote from: mgk920 on June 03, 2018, 10:59:16 AM
Quote from: ilpt4u on May 27, 2018, 11:49:41 PM
I'm just going to say: I-74 and every US and IN route that goes around Indy on the I-465 Beltway
Also I-465 itself - going anti-clockwise around the city, in the northwest corner I-865 is the 'straight ahead' route and I-465 exits to continue southward in its endless trip around the city.
Mike
It still bothers me that they gave a designation to an over-glorified ramp.
U.S. 75 exits itself at LeMars IA, and the freeway (which soon becomes an expressway) continues as IA-60. The exit number is the mile point for U.S. 75. Since Iowa has a couple of state highways that run concurrent with U.S. routes for continuity, I would run 60 all the way south to the Nebraska state line along U.S. 75., and redo the exit numbers along 60 north of LeMars to count from the state line at Sioux City.
At the North end, IL 53 exits the IL 53 Freeway, at Dundee Rd, and the IL 53 Freeway (presently) continues one more exit to its terminus @ Lake/Cook Rd...whoops missed that hbelkins already pointed this out
And US 41 leaves the Northern Lake Shore Drive Freeway @ Foster Ave, and the Freeway/Parkway continues to Hollywood Ave
If that is the spirit here, numbered routes that exit the Freeway they are associated with...
To take it a step further, I-355 doesn't turn off the Freeway it is associated with...It just ends. And the IL 53 Freeway north of there is known as I-290/IL 53 (to I-90) and just IL 53 to either Dundee or Lake/Cook Roads, depending on how the question is asked. The I-355/IL 53 North-South Freeway Corridor is treated as one Freeway on Chicagoland Traffic Reports, and I-355 to I-290 is given the "thru route" design at their Y Interchange
Onto STL...I-70 (now) exits off the Mark Twain Expressway to cross the Mississippi on the newer Stan Musial Bridge. The I-44 designation was extended north from its former terminus @ I-55 to its new terminus @ I-70 @ the Stan Span. But I believe the Mark Twain Expressway extends from the Poplar Street Bridge Missouri side interchange out to at least the Airport and I-170, if not 270
What about things like Interstates exiting one Freeway route to join/create another? I-95 and the NJ (and soon PA) Turnpike? I-76 and I-70 and PA Turnpike? I-76, I-80, and I-90 and the Ohio Turnpike? I-80 and the Indiana Toll Road & the Borman Expressway? I-80 and I-94 and the Tri-State Tollway, to name a few?
Quote from: RobbieL2415 on June 01, 2018, 04:35:05 PM
MA: I-95 and MA 128 in Peabody
MA 128 continues as a freeway north of the I-95/MA 128 split in Peabody. It leaves the freeway, but continues as a numbered route, at Grant Circle in Gloucester.
Another one for Massachusetts is US 3 south in Burlington, where it leaves the I-95 freeway and continues as a conventional road into Cambridge.
Got an unusual example out here in CA: NB CA 2, for several miles its own ("Glendale") freeway, exits onto I-210 EB for about a mile and then exits onto Angeles Crest Highway to head up into the San Gabriel mountains. And several dozen miles west, CA 118 and CA 23 must exit -- mutually! their joint (although not originally planned that way!) freeway to head, respectively, WB and NB. And -- although this is being "fixed" as we speak and is the subject of a thread in SW -- CA 58 does a similar thing to CA 2 above, but this time segueing NB on CA 99 for a couple of miles before exiting to a surface street in order to continue WB.
Quote from: bzakharin on May 31, 2018, 09:26:44 AM
Well, in that case, some (I think) not mentioned in NJ:
US 40 exits I-295 together with the NJ Turnpike. Then it exits the Turnpike almost immediately.
US 130 has a multiplex with I-295
US 46 exits itself in both directions. The thru freeway becomes NJ 20 north of this and NJ 21 south
US 1/9/46 multiplex ends southbound with 46 remaining the thru freeway
All of the above multiplex with I-95 as well
US 206 exits the afore-mentioned US 202/206 multiplex southbound shortly before US 202 ceases to be a freeway
I-676 and US 30 split up right after entering NJ, though it's not clear which one is the thru freeway there
There is an I-78/US 22 multiplex
Also I-287/NJ 17
I-80/US 202
I'm sure I'm missing some
NJ 42 & the AC Expressway: north of the interchange, NJ 42 is the North-South Freeway; south of the interchange, NJ 42 is the Black Horse Pike & the freeway becomes the AC Expressway. Note: north of the interchange, the Black Horse Pike is NJ 168.
Other California examples not mentioned yet:
US 101 does this in San Francisco along the Central Freeway; since 1989, it has exited to the South Van Ness/Duboce/Mission ramps while the freeway continues west, originally to Fell Street but since 2005 to Market and Octavia.
When the barely-signed south portion of Route 170 existed in Hollywood, 170 essentially used the Hollywood Freeway from I-5 in San Fernando to the Highland Avenue exit off the US 101 segment, then Highland to Route 2.
Route 47 does this twice in the Terminal Island area: first switching via diamond interchange from the Seaside Freeway to the Terminal Island Freeway/Route 103 (Seaside Freeway continues east as Interstate 710), and then exiting at Henry Ford Avenue off of the Terminal Island Freeway
Route 54 kinda does this in San Diego, where the through lanes of the South Bay Freeway become part of a brief concurrency with Route 125, followed by the Jamacha Boulevard exit where 54 splits off. Not sure if any of the Jamacha portion of 54 is still a state route though.
NY 9A does this twice. It exits the Henry Hudson Parkway at the very north end onto Broadway, and in Westchester County exits the Peekskill Expressway twice; once near the southern end and another in Croton on Hudson. In all cases, it either joins or leaves its parent.
Quote from: ErmineNotyours on May 27, 2018, 06:59:05 PM
I'm a new member and taking in all the forums in a short time. I saw this topic mentioned somewhere here, but never found the actual thread. If it exists, it's too old to continue anyway.
Notice that in Washington State, the mileage continues on the bridge over/under the same intersecting highway, and not down the enter/exit ramps, which would vary depending on direction. Not included are multiplexes that enter/exit a more dominant freeway.
Washington State:
SR 422 at Tennant Way: West 422 must exit or it continues as Tennant Way, a City of Longview street. This interchange is at the south end of SR 411, and itself soon ends at the short SR 433, the Lewis and Clark Bridge over the Columbia River. Diagram (http://www.wsdot.wa.gov/mapsdata/tools/InterchangeViewer/pdf/SR432/432X007.pdf) Google Maps (https://www.google.com/maps/@46.119882,-122.9343978,15z)
US 101 at SR 8: Northbound 101 must exit or continue as SR 8. Southbound 101 narrows to one lane and becomes an on ramp. Diagram (http://www.wsdot.wa.gov/mapsdata/tools/InterchangeViewer/pdf/SR101/101X361.pdf)
SR 7 at S 38th Street: This is the end of a stub built as part of the Intersate 5 project. The proposed freeway would have gone to Parkland before rejoining surface SR 7. There is also a diamond-shaped patch of trees visible on Google Maps (https://www.google.com/maps/@47.1585119,-122.424116,1068m/data=!3m1!1e3) that was to be the cloverleaf interchange with SR 512, but the freeway is now so abandoned that someone has built condos just south of where the freeway would have gone through. Diagram (http://www.wsdot.wa.gov/mapsdata/tools/InterchangeViewer/pdf/SR007/007X057.pdf)
SR 509 at Des Moines Way South: Southbound traffic missing the exit continues on past the south end of Sea-Tac Airport. Temporary end pending new freeway construction Diagram (http://www.wsdot.wa.gov/mapsdata/tools/InterchangeViewer/pdf/SR509/509X023a.pdf)
SR 99 at First Avenue Bridge: At the north end of the freeway, north traffic must wait at a left turn light and then use an on ramp to the bridge. South 99 must exit from near the north end of SR 509 and make a nearly complete helix before waiting at the light for north 99 turns. Diagram (http://www.wsdot.wa.gov/mapsdata/tools/InterchangeViewer/pdf/SR099/099X026.pdf)
SR 504 at Coldwater Ridge Visitor Center, near Mt. St. Hellens. This one puzzles me. I've never been there, but I don't see why this interchange exists unless there is steep terrain or high volumes expected. Eastbound 504 must exit or continue to the visitor center, though there is a second chance left turn available. Westbound uses the cloverleaf, which is part of the official highway mileage. Diagram (http://www.wsdot.wa.gov/mapsdata/tools/InterchangeViewer/pdf/SR504/504X042.pdf) Google Maps (https://www.google.com/maps/@46.3014102,-122.2718004,16.03z)
No longer qualifies:
SR 99 at SR 599 and Marginal Way East: South traffic used to have to exit to Pacific Highway South/International Boulevard or continue as 599. Now 99 has been deleted south of here to the junction with SR 518, with no listed or official multiplexing. Diagram (http://www.wsdot.wa.gov/mapsdata/tools/InterchangeViewer/pdf/SR099/099X022.pdf)
Oregon:
I-5 at I-405 (south end) and Harbor Drive. South I-5 exits on a flyover, while left lanes continue on as I-405. North I-5 exits while left lanes continue as Harbor Drive. I-5 alignment was planned as being on the west side of the Willamette River. Though the removal of that freeway is much celebrated by Portland residents, I-5 still dominates the east side of the river. Google Maps (https://www.google.com/maps/@46.3014102,-122.2718004,16.03z)
I-84 westbound at I-205: left lanes continue as I-205. This was in anticipation of the canceled Mt. Hood freeway. Google Maps (https://www.google.com/maps/@45.5459717,-122.5545426,16z)
US 12 in Washington does what you describe in its western section. The freeway section continues toward Olympia as SR 8 while US 12 heads for I-5 at Grand Mound.
Rick
Quote from: RobbieL2415 on June 01, 2018, 04:35:05 PM
Here's the ones I know of:
CT: US 1 with I-95, US 5 with CT 15, US 6 with I-84 (multiple times), US 6 with CT 8, US 7 with I-84 in Danbury, US 44 with US 6 in Bolton, US 202 with US 7, I-84 and CT 10, CT 2 and CT 32 outside Norwich
RI: US 6 and RI 10 in Providence.
MA: I-95 and MA 128 near Danvers (?), I-91 and US 5 in Springfield
NY: NY 17 (temporarily) leaving I-86 in the vicinity of Windsor, though some shields are visible,
NY 17 does leave its freeway at Woodbury where it then heads south as a four lane arterial and continues into NJ (though now a short concurrency on the Thruway at Hillburn). Maybe not at where you describe, but several miles to the east.
Found another one. In Everett, Washington, US 99 used to go straight from the Snohomish River Bridge down Broadway, but in the mid 1990s a naval base opened up on the waterfront (where naval bases tend to congregate) and so SR 529, the successor to US 99 was rerouted to the base, making the state pay for two new bridges over railroad tracks. I doubt anyone going directly between Downtown Everett and Marysville would follow the new SR 529 routing just because it is a state highway. Interchange Viewer. (http://www.wsdot.wa.gov/mapsdata/tools/InterchangeViewer/pdf/SR529/529X003.pdf)
I-70 at Breezewood, PA.
:banghead:
Mike
I-80 in West Sacramento has to exit US-50/I-305 on the eastbound direction.
Quote from: bing101 on July 18, 2018, 12:28:14 PM
I-80 in West Sacramento has to exit US-50/I-305 on the eastbound direction.
I don't know that I'd say I-80 exits US 50, given that this is where US 50 starts. It's more of a split with US 50 being the predominant movement.