I was thinking about how I-83 in Baltimore multiplexes with I-695 for about a mile with no exits in between both ends of the multiplex. It hops on and right back off again. Are there any other such multiplexes out there?
US 41 is Multiplexed with I-75 in GA between Hahira and Valdosta, and there are no exits in between the two exits where US 41 joins/leaves I-75.
NY 7 is multiplexed with I-87 from exit 6 to exit 7 just north of Albany.
One in SE Mich: M-14 multiplexes with US-23 on the north side of Ann Arbor with no exit between the interchanges.
MA 140 hops onto MA 2 (a freeway) for one exit.
But why does MA 140 do this? It could just use MA 2A and W Main St. (I want an answer for this.)
My first thought was TX 108 along I-20 between consecutive exits. There's also TX 17 along I-10 and TX 70 along I-40.
US 10 multiplexes with I-43 near Manitowoc WI from exits 152 to 154. and WIS 42 on I-43 from exits 149 to 152.
US 1 does in Pawtucket, RI. It hops right on and then off just to cross a river.
US 1 does it again to cross the Connecticut River on I-95 near Old Saybrook, CT.
US 9 does it in New Gretna, NJ with the Garden State Parkway.
If NJDOT would only ask FHWA to reroute US 9 across the Great Egg Harbor Bay Bridge being the Beeslys Point Bridge will never be rebuilt, then another instance would be.
I-35E/I-94 St. Paul, MN
I-35E/I-694 MN
I-90/MN 43
I-94/US 10/(hidden US 12)/US 61 St. Paul, MN (the US 61 part)
I-94/MN 95
US 14/MN 56 (technically, if you consider that the 14/56 North intersection is where US 14 ends as a freeway)
I-59/MS 43 Picayune, MS
QuoteIf NJDOT would only ask FHWA to reroute US 9 across the Great Egg Harbor Bay Bridge being the Beeslys Point Bridge will never be rebuilt, then another instance would be.
That doesn't specifically require FHWA's permission...just AASHTO.
(former) I-540 & I-40 Alma-Van Buren AR
US 19 does in GA on the north side of the I-285 loop.
Quote from: roadman65 on October 08, 2014, 08:40:06 PM
US 1 does it again to cross the Connecticut River on I-95 near Old Saybrook, CT.
So does US 44 on I-84 to cross the same river, and US 1 with I-95 in New London again to cross the Thames.
I-587 and NY 28. Owned.
OH 49 does so with I-70 with a pair of partial interchanges. US 224 sort-of does so with US 30 but US 30 isn't a full freeway (despite the 65 mph limit)--there are a few intersections with local roads in between--but the entry and departure of 224 are at consecutive interchanges signed with BGS.
OH 16 and OH 37 in Granville
I-75 and US 25/421, exits 97 and 99 in Kentucky. This is the Clays Ferry Bridge crossing the Kentucky River.
The original southbound span was built for 25/421 to replace the old one-lane metal truss bridge down at the valley floor. The northbound span was added later, then the center span in the 1990s when the road was widened to three lanes in each direction.
I think KY 61 may use part of I-65 in Louisville but I'm not positive, and I also don't know that if it does, it joins and departs at successive exits.
Also, I-64 and Truck KY 627 between exits 94 and 96 near Winchester.
I 75 and US 23 wrong way south of Toledo
US 78 in Mississippi is fond of these. MS 9 does it near Sherman, and MS 25 does it (at least for the next 15 years or so, until the proposed Amory bypass is extended north) near Fulton. And MS 4 and MS 7 are scheduled to multiplex with US 78 between exits 26 and 30 near Holly Springs eventually; most of the signage is in place, but for some reason it's never been unveiled.
I-74 and I-280 in the Quad Cities. At 10 9 miles, I would guess that it's probably one of the longest that would fit this thread.
US-20 with I-39 and US-51 in Rockford, IL. Between where I-39/US-51 enters the freeway and then US-20 exits 3 miles later.
US-20 with I-290 in Elmhurst, IL. Between Exits 12 and 13 for just a mile. Truck IL-64 also shares this pavement with US-20 for the same distance along I-290.
I-49 & LA 8 - Boyce, LA (3.5 miles)
I-20 & US 371 - Minden, LA (2.6 miles)
US 167 expressway and US 71 - Tioga, LA (2.9 miles)
I-310 & LA 3127 - Boutte, LA (1.6 miles)
I-20 & US 80 - Waskom, TX (4.4 miles)
I-20 EB & US 287 - Fort Worth, TX (1.3 miles)
California examples:
- US 101 and Route 84 in Redwood City, between Marsh Road (Exit 406) and Woodside Road (Exit 408)
- Route 84 and I-880 in Fremont, from Thornton Avenue (Exit 19) to Exit 21
- Route 12 and Route 99 in Lodi, from Kettleman Lane (Exit 264) to Victor Road (Exit 266)
- Route 120 and Route 99 in Manteca, from Exit 241 to Exit 242
- Route 152 and US 101 in Gilroy, from Exit 356 to Exit 357
- Route 33 and I-5 north of Coalinga, from Exit 337 to Exit 349
- Route 74 and I-215 in Perris, from Exit 15 to Exit 17
Not sure if 54 along Route 125 in Spring Valley between Exit 11A and Exit 13 counts anymore.
In Mansfield, MA; MA 140 piggy-backs along I-495 (between Exits 11 & 12).
In Indiana:
IN 331 multiplexes with US 20 for one exit.
Can't think of any other examples right now.
Quote from: PHLBOS on October 09, 2014, 01:51:23 PM
In Mansfield, MA; MA 140 piggy-backs along I-495 (between Exits 11 & 12).
Quote from: 1 on October 08, 2014, 07:19:08 PM
MA 140 hops onto MA 2 (a freeway) for one exit.
So it does it twice, in completely different locations... 140 is kind of a strange route.
Quote from: 1 on October 08, 2014, 07:19:08 PM
MA 140 hops onto MA 2 (a freeway) for one exit.
But why does MA 140 do this? It could just use MA 2A and W Main St. (I want an answer for this.)
The old 140 that followed that route was moved to get thru traffic off the roads thru the town center. And yes, there is some irony that 2A already does this. W Main St has a truck/commercial vehicle restriction for thru trucks, so I think that is the main reason they did what they did.
Also, MA 2 joins I-91 for a couple miles with no exits between where each side joins.
Alabama:
I-65 and US 80 between Exits 167 and 168
I-65 and US 31 between Exits 284 and 287
I-65 and AL 69 between Exits 299 and 304
I-20 and US 78 between Exits 153 and 156
Quote from: cabiness42 on October 09, 2014, 01:53:18 PM
In Indiana:
IN 331 multiplexes with US 20 for one exit.
Can't think of any other examples right now.
Also, the entire length of I-865 (which has no exits between its termini) multiplexes with US-52. Bonus points?
Quote from: theline on October 10, 2014, 01:02:02 PM
Quote from: cabiness42 on October 09, 2014, 01:53:18 PM
In Indiana:
IN 331 multiplexes with US 20 for one exit.
Can't think of any other examples right now.
Also, the entire length of I-865 (which has no exits between its termini) multiplexes with US-52. Bonus points?
I wasn't quite sure to include that since it's the entire length of 865, but hey, it works.
IL-122 and I-155 in Tazewell County, IL have a 3-mile multiplex, and 155 doesn't have any exits in that stretch.
Same goes for I-80 and IA-38 in Cedar County, IA. That one is 4 miles.
I-540/I-49/US 62/US 71/AR 16 in Fayetteville. AR 16 hops onto I-49 for a stretch between exits.
US 31E near Nashville is concurrent with TN 155 (Briley Parkway) for a stretch without exits.
I-86/NY 17 is multiplexed with US 219 between exits 21 and 23 (there's no exit 22) in Salamanca.
I-70 and CO 9 from Exit 203 to Exit 205 (Frisco/Silverthorne). Also the only Interstate/CO marked overlap in the state.
Quote from: GaryV on October 08, 2014, 07:05:06 PM
One in SE Mich: M-14 multiplexes with US-23 on the north side of Ann Arbor with no exit between the interchanges.
Not quite - you're forgetting Whitmore Lake Rd/Barton Dr:
https://www.google.com/maps/place/Ann+Arbor,+MI/@42.3068121,-83.7435958,3a,75y,196.11h,87.6t/data=!3m4!1e1!3m2!1sLrersYwCgdU8leSECQuRBA!2e0!4m2!3m1!1s0x883cb00dd4431f33:0xdb09f94686c8b5e2 (https://www.google.com/maps/place/Ann+Arbor,+MI/@42.3068121,-83.7435958,3a,75y,196.11h,87.6t/data=!3m4!1e1!3m2!1sLrersYwCgdU8leSECQuRBA!2e0!4m2!3m1!1s0x883cb00dd4431f33:0xdb09f94686c8b5e2)
I-70 and I-71, soon, sort of. By the end of this year, the exit to Fourth St will close, leaving no "exits" along the westbound/southbound half of the overlap (though there will still be two entrances).
As future projects transform the highway, downtown access will shift entirely to the interchanges at either end of the overlap, leaving no exits or entrances between. (Except maybe a single eastbound exit to Parsons Ave; I can't remember if that comes off I-70 upstream or downstream of the I-71 split in the plans, which may change anyway.)
Quote from: JREwing78 on October 11, 2014, 12:58:50 AM
Quote from: GaryV on October 08, 2014, 07:05:06 PM
One in SE Mich: M-14 multiplexes with US-23 on the north side of Ann Arbor with no exit between the interchanges.
Not quite - you're forgetting Whitmore Lake Rd/Barton Dr:
https://www.google.com/maps/place/Ann+Arbor,+MI/@42.3068121,-83.7435958,3a,75y,196.11h,87.6t/data=!3m4!1e1!3m2!1sLrersYwCgdU8leSECQuRBA!2e0!4m2!3m1!1s0x883cb00dd4431f33:0xdb09f94686c8b5e2 (https://www.google.com/maps/place/Ann+Arbor,+MI/@42.3068121,-83.7435958,3a,75y,196.11h,87.6t/data=!3m4!1e1!3m2!1sLrersYwCgdU8leSECQuRBA!2e0!4m2!3m1!1s0x883cb00dd4431f33:0xdb09f94686c8b5e2)
That's on M-14 only, west of the duplex with US-23.
US-322 multiplexes with I-95 from exits 3 to 4
MD 10 and MD 100 multiplex for about a mile in Pasadena.
SD: I-90 and SD 34 (23-30)
I-90 and SD 73 (143-150)
I-90 and SD 63 (163-170)
I-90 and SD 50 (265-272)
I-90 and SD 45 (284-289)
I-90 and SD 37 (330-332)
I-29 and US 18 (59-62)
I don't know what the point of that is.
Quote from: Roadgeek2500 on October 11, 2014, 10:49:23 AM
US-322 multiplexes with I-95 from exits 3 to 4
True for I-95 Northbound, not true for I-95 Southbound; the exit ramp for Highland Ave. (Exit 3B) occurs
before US 322 West veers off I-95 at Exit 3A.
Just discovered this one while looking at Google Maps:
US 6 and OH 2 between Rye Beach Road (Exit 142) and Fabens Park (Exit 143) in Huron, Ohio:
http://goo.gl/maps/uAvLu
128/95 are overlapped for one exit by US 3 in Burlington, Mass.
Quote from: Cjzani on October 09, 2014, 09:29:59 PM
Quote from: 1 on October 08, 2014, 07:19:08 PM
MA 140 hops onto MA 2 (a freeway) for one exit.
But why does MA 140 do this? It could just use MA 2A and W Main St. (I want an answer for this.)
The old 140 that followed that route was moved to get thru traffic off the roads thru the town center. And yes, there is some irony that 2A already does this. W Main St has a truck/commercial vehicle restriction for thru trucks, so I think that is the main reason they did what they did.
140 is more of a through route there than 2A, in that 140 is not a redundant side route. 140 also handles quite a bit of traffic in winter for Mt. Wachusett skiing. If those coming from the west took Main St., it'd be slower for them and everyone else than if they exited at Exit 25.
Before the US 202 Parkway in Bucks and Montgomery Counties in PA, US 202 was that way as it was routed on the PA 611 Freeway in Doylestown for several years.
Quote from: Pete from Boston on October 14, 2014, 12:51:28 PM
128/95 are overlapped for one exit by US 3 in Burlington, Mass.
Nope. Middlesex Ave./Exit 32B is situated between where US 3 enters & breaks off I-95.
Quote from: PHLBOS on October 14, 2014, 01:48:50 PM
Quote from: Pete from Boston on October 14, 2014, 12:51:28 PM
128/95 are overlapped for one exit by US 3 in Burlington, Mass.
Nope. Middlesex Ave./Exit 32B is situated between where US 3 enters & breaks off I-95.
I suppose. In my head 32A and 32B are one interchange (particularly because they are served by the same exit from 128 to the C/D road) but looking at a map, there is some meaningful amount of separation.
Quote from: Pete from Boston on October 16, 2014, 01:20:21 PM
Quote from: PHLBOS on October 14, 2014, 01:48:50 PM
Quote from: Pete from Boston on October 14, 2014, 12:51:28 PM
128/95 are overlapped for one exit by US 3 in Burlington, Mass.
Nope. Middlesex Ave./Exit 32B is situated between where US 3 enters & breaks off I-95.
I suppose. In my head 32A and 32B are one interchange (particularly because they are served by the same exit from 128 to the C/D road) but looking at a map, there is some meaningful amount of separation.
Prior to 1987-88, the US 3 North was Exit 43 and Middlesex Ave. (Turnpike) was Exit 42.
Quote from: JREwing78 on October 11, 2014, 12:58:50 AM
Quote from: GaryV on October 08, 2014, 07:05:06 PM
One in SE Mich: M-14 multiplexes with US-23 on the north side of Ann Arbor with no exit between the interchanges.
Not quite - you're forgetting Whitmore Lake Rd/Barton Dr:
https://www.google.com/maps/place/Ann+Arbor,+MI/@42.3068121,-83.7435958,3a,75y,196.11h,87.6t/data=!3m4!1e1!3m2!1sLrersYwCgdU8leSECQuRBA!2e0!4m2!3m1!1s0x883cb00dd4431f33:0xdb09f94686c8b5e2 (https://www.google.com/maps/place/Ann+Arbor,+MI/@42.3068121,-83.7435958,3a,75y,196.11h,87.6t/data=!3m4!1e1!3m2!1sLrersYwCgdU8leSECQuRBA!2e0!4m2!3m1!1s0x883cb00dd4431f33:0xdb09f94686c8b5e2)
That's BL-23, not US-23.
Quote from: kj3400 on October 08, 2014, 06:40:32 PM
I was thinking about how I-83 in Baltimore multiplexes with I-695 for about a mile with no exits in between both ends of the multiplex. It hops on and right back off again. Are there any other such multiplexes out there?
The even weirder thing about this multiplex is that I-83 doesn't really "hop on" to I-695. It maintains the same two lanes before and after the multiplex, and I-695 maintains the same three lanes before and after the multiplex. There's no merging involved if you want to stay on I-83.
iPhone
Quote from: froggie on October 08, 2014, 08:50:15 PM
I-35E/I-694 MN
And it is/was a pain in the ass, the last time I was there, because 694 dropped into the left lane of I-35E, and you had about 1.5 miles to exit on the right to continue on 694.
US 30 technically multiplexes on I-405 around Portland from I-5 to the Yeon Avenue Exit (originally I-505).
Not to mention the many times that US 30 jumps onto and off of I-84 in Oregon, often for just one exit.
Quote from: TheStranger on October 14, 2014, 12:25:11 PM
Just discovered this one while looking at Google Maps:
US 6 and OH 2 between Rye Beach Road (Exit 142) and Fabens Park (Exit 143) in Huron, Ohio:
http://goo.gl/maps/uAvLu
Meanwhile, on the other side of town (Sandusky), OH-269 multiplexes with OH-2 over the Thomas Edison Bridge and causeway on Sandusky Bay. OH-269 until the mid 80s followed the old alignment of OH-2 at Danbury, crossing the bay via the old Sandusky Bay lift bridge -- since removed.
Quote from: NE2 on October 08, 2014, 09:52:44 PM
I-587 and NY 28. Owned.
Darn. I still don't know why I-587 even exists.
I-87 and I-90 at the Exit 24/1 complex in Albany are multiplexed for half a mile, if that.