I was just wondering how many examples of interstates or freeways that run directly next to each other or on the same ROW for some distance without actually sharing pavement. Both I-88/I-355 and I-290/I-294 in Chicagoland are the first to come to mind. What other examples of this setup are out there? I guess examples such as the way Atlanta's southern leg of I-85 sits in the median of I-285 or how I-10 and I-45 straddle and weave inbewteen each other for a mile or two in Houston can be included as well.
:hmmm:
295 & the NJ Turnpike in the Moorestown/Mt. Laurel/Cherry Hill area.
95 & the Florida Turnpike north of Miami
What about the UT 67 and I-15 stretch north of Salt Lake?
I-205 and I-84 for about half a mile. Well, they share ROW with light rail and a bike trail too.
I-84 and CT 72 in Plainville.
I-91 and CT 15 in Meriden (both directions of I-91 are sandwiched in between the CT 15 NB and SB lanes.
US 6 and I-295 in Johnston, RI (US 6 follows the c/d roads)
I-81 and I-476 near Wilkes-Barre.
I-95 and I-895 in Baltimore when they leave the Fort McHenry and Harbor Tunnels respectively.
I-695 and I-83 in Baltimore. When I-83 merges in and out, it maintains its 2 lanes while I-695 maintains its three lanes. You can pass between the two highways freely during the concurrent stretch, but the lane configuration makes it seem like there are literally 2 highways next to each other.
Another example: I-75 and I-96 in Detroit.
I-85 and old I-85 (SR 13) in Atlanta. Perhaps the only example with an old alignment.
Oh yeah...how could I forget 295 South & 76 East/42 South. Not the other side though...that shares pavement...for now! I'll revisit this in a few months when it's separated.
US 46 of course runs very close to I 80 across the entire state of NJ, but I guess one can argue which parts of US 46 if any are actually built to freeway standards outside the I-95 overlap.
Quote from: bzakharin on November 03, 2013, 09:27:53 AM
US 46 of course runs very close to I 80 across the entire state of NJ, but I guess one can argue which parts of US 46 if any are actually built to freeway standards outside the I-95 overlap.
What's not arguable is that US 46 is never right next to I-80.
I-85/I-285 south of Atlanta.
I-73/I-85 south of Greensboro.
Dulles Toll Road and Dulles Airport Access Highway in Virginia. The configuration is more like an express/local setup, but they're definitely separate roads with different purposes.
Quote from: UptownRoadGeek on November 03, 2013, 12:18:23 AM
I was just wondering how many examples of interstates or freeways that run directly next to each other or on the same ROW for some distance without actually sharing pavement. Both I-88/I-355 and I-290/I-295 in Chicagoland are the first to come to mind. What other examples of this setup are out there? I guess examples such as the way Atlanta's southern leg of I-85 sits in the median of I-285 or how I-10 and I-45 straddle and weave inbewteen each other for a mile or two in Houston can be included as well.
:hmmm:
I never realized
I-295 served Chicago :-D
Anyway, In Minneapolis, I-35W runs inside I-94 briefly through downtown, then runs parallel to an expressway, I guess you could call it, that goes into downtown. Further south of downtown Minneapolis, I-35W does it again with MN Route 62 in the Crosstown Commons
I-95 and Florida's Turnpike
I-295 and NJTP
Quote from: PColumbus73 on November 03, 2013, 11:14:45 AM
Anyway, In Minneapolis, I-35W runs inside I-94 briefly through downtown, then runs parallel to an expressway, I guess you could call it, that goes into downtown. Further south of downtown Minneapolis, I-35W does it again with MN Route 62 in the Crosstown Commons
I'd count the "downtown exits" of former MN 65, which spurs into downtown, as a full freeway.
I-580 and I-80 in Richmond after 580 splits off of 80 towards the San Rafael Bridge.
I-805 and CA 15 in San Diego City
Has anyone mentioned I-95 and Florida's Turnpike?
NY 49 (and part of I-790/NY 5) and I-90. This would probably be a multiplex were the Thruway not a closed ticket system here.
Arguably I-8 and MX 2D
A-20 and A-40
Not quite side-by-side, but close: current freeway and future freeway, only a quarter-mile apart, for a distance of 1.75 miles:
https://maps.google.com/?ll=37.678216,-97.214456&spn=0.018953,0.042272&t=h&z=15 (I-35/Kansas Turnpike and US 54/US 400/Kellogg in Wichita, KS)
Quote from: NE2 on November 03, 2013, 09:32:11 AM
Quote from: bzakharin on November 03, 2013, 09:27:53 AM
US 46 of course runs very close to I 80 across the entire state of NJ, but I guess one can argue which parts of US 46 if any are actually built to freeway standards outside the I-95 overlap.
What's not arguable is that US 46 is never right next to I-80.
You seem to be right. I could have sworn there were places where you could see on from the other, but all I can find now is when they cross with each other, which doesn't really count.
How about the Garden State Parkway and US 9 from approaching GSP exit 127 to just short of 129?
Interstate 15 and former Interstate 15/US 395 (Kearny Villa Road) at Miramar MCAS in San Diego.
Quote from: UptownRoadGeek on November 03, 2013, 12:18:23 AM
I was just wondering how many examples of interstates or freeways that run directly next to each other or on the same ROW for some distance without actually sharing pavement. Both I-88/I-355 and I-290/I-295 in Chicagoland are the first to come to mind. What other examples of this setup are out there? I guess examples such as the way Atlanta's southern leg of I-85 sits in the median of I-285 or how I-10 and I-45 straddle and weave inbewteen each other for a mile or two in Houston can be included as well.
:hmmm:
It's I-294 not I-295
Do "dual dual" freeways count?
Like the New Jersey Turnpike between (soon) Exit 6 and Exit 15E - and, of course, north of there are the "East Spur" and "West Spur" of the Turnpike.
Or the Garden State Parkway between Neptune/Asbury Park and the N.J. Turnpike.
Or I-270 in Montgomery County, Maryland?
Or I-271 in Cleveland, Ohio?
Or I-95/I-495 between Virginia Exit 176 and Maryland Exit 3?
I-88 and I-355 for about 1 mile in Downers Grove, IL
I-294 and I-290 for about 1 mile in Hillside, IL. 294 does a slight curve to go under St Charles Rd, but it is parallel to 290 between the Hillside JCT and North Ave (IL-64)
I-5 truck lanes and the mainline lanes between CA 14 and I-210
Quote from: cpzilliacus on November 03, 2013, 07:09:21 PM
Do "dual dual" freeways count?
Like the New Jersey Turnpike between (soon) Exit 6 and Exit 15E - and, of course, north of there are the "East Spur" and "West Spur" of the Turnpike.
Or the Garden State Parkway between Neptune/Asbury Park and the N.J. Turnpike.
Or I-270 in Montgomery County, Maryland?
Or I-271 in Cleveland, Ohio?
Or I-95/I-495 between Virginia Exit 176 and Maryland Exit 3?
I may be mistaken, but I think the NJ Turnpike is the only dual-dual roadway, which allows traffic from either the inner or outer drive to access all exits and rest areas/service plazas. The other roadways are highways with express/local lanes.
Quote from: vdeane on November 03, 2013, 01:02:48 PMA-20 and A-40
They do serve a different set of communities that are separated by a river... but they are indeed somewhat side-by-side in Montreal, especially in the West Island. That's a bit of an edge case though, isn't it?
Quote from: NE2 on November 03, 2013, 12:57:07 PM
Has anyone mentioned I-95 and Florida's Turnpike?
The very 2nd post by jeffandnicole
A
portion of I-81 & I-476 (PA Turnpike Northeast Extension) between Wilkes-Barre & Scranton, PA
Although one is a Jersey/arterial type freeway, I-95 & US 1 in Peabody & Danvers, MA.
I-684 and the Saw Mill Parkway in Katonah, NY.
I-87 and the Saw Mill Parkway in Ardsley.
Northern State Parkway and the LIE near North Hills
Quote from: cpzilliacus on November 03, 2013, 07:09:21 PM
Do "dual dual" freeways count?
Like I-271 in Cleveland, Ohio?
I'll say yes...but only for the part of the I-271 express lanes that run inside of I-90 from the split to east of SR-91.
ODOT, on the other hand, considers that stretch a very long "transition ramp" as they mark the END of both I-271 Local & Express at the same point a few miles before I-271 Express officially dumps onto I-90 East.
US 13 and Delaware 1 in several places, and not just where they cross.
I-35W and I-94 straddle each other for several blocks in Minneapolis, MN.
Mike
VA 27 and I-395
If you are talking about dual freeways, you have to talk about ON-401 in the. Toronto area.
Honorable mention: Not anywhere near being the same ROW, but I-64 and I-44 parallel for a few miles in Saint Louis and they are less than a half a mile apart.
Personally, I wouldn't consider express/local setups, because they are the same highway. I-35W inside I-94 in Minneapolis would count, but I wouldn't count the I-271 Express/Local lanes
I-85 and US-74 at that weird interchange near Gastonia might qualify: http://goo.gl/maps/FCqbM
Even though there is a river in between them, the Major Deegan and Harlem River Drive.
The Ventura Freeway and Kujukuri Toll Road.
They missed a chance with 271/480 to have a side-by-side setup...there is space and even grading for a local/express type setup (http://goo.gl/maps/DO9CH) in the overlap area but it could have been 480 on the outside and 271 on the inside.
I-90 and I-790 in NY.
I-295 and the NJT in NJ.
US 9 and the Garden State Parkway across the Raritan River. Then even north of there the GSP is inside US
9 for about a mile in NJ also.
The Belt Parkway and the Nassau Expressway (NY 878) by Kennedy Airport.
Quote from: Dr Frankenstein on November 04, 2013, 12:27:31 AM
Quote from: vdeane on November 03, 2013, 01:02:48 PMA-20 and A-40
They do serve a different set of communities that are separated by a river... but they are indeed somewhat side-by-side in Montreal, especially in the West Island. That's a bit of an edge case though, isn't it?
I was thinking specifically of the west Montreal segments.