I did a search on this but didn't come up with anything similar to this.
Where I am in the Buffalo area, the widest point would be I-90 at NY 400, where the eastbound I-90 bridge has 5 lanes and the westbound I-90 bridge has 4 lanes including 1 exit lane.
This is tied with I-90 at Cleveland Dr. where traffic between NY 33 and I-290 weaves with I-90 in a section between the Cleveland Drive offramp merge and the Cleveland Drive onramp.
Interstate 5 caps out at 13 lanes just north of downtown Seattle: 5 southbound lanes (including the exit lane for Mercer Street), 4 reversible express lanes, and 4 northbound lanes.
(https://farm6.staticflickr.com/5500/14048146729_dee2c30d8a_b.jpg) (https://flic.kr/p/npoqAn)
I-5 from Lakeview Boulevard (https://flic.kr/p/npoqAn) by SounderBruce (https://www.flickr.com/photos/sounderbruce/), on Flickr
Richmond, VA -- VA-76 Powhite Parkway, including the James River bridge, 2 miles between Downtown Expressway and Forest Hill Avenue. Five lanes each way.
There are a couple spots between the Reno airport and I-80 where northbound I-580/US 395 bloats up to 7 lanes. Southbound has 4 through lanes in that area and sometimes an exit-only lane. I'm not sure it ever gets up to 12 lanes; it might max out at either 7 + 4 or 6 + 5.
The northbound Lodge Freeway (M-10) opens up to six lanes for a one-mile stretch in Southfield.
https://goo.gl/maps/hnCmyaAvBYQ2
10 lanes wide on I-80 in Fairfield, CA because of Traffic from San Francisco and Sacramento.
12 lanes I-80 in Roseville, CA.
The widest freeway in Utah is I-15/80 in Salt Lake City, just north of the Spaghetti Bowl. At the 1700 South bridge, in each direction there are 4 general lanes, 1 HOV lane, and 4 C/D lanes for a total of 18 lanes.
The segment just north of there (between 600 South and 1300 South) has 7 lanes in each direction (6 general, 1 HOV) for a total of 14.
I-15 is 13 lanes just south of the south 15/215 interchange, and 12 lanes between I-215 and 2600 South in Bountiful. It also maintains 12 lanes through the Point of the Mountain.
Portland is I-5 just south of OR 217 at 10 lanes (5 each way). I do not count exit ramps.
LG-TP260
For me, it would be I-84 in East Hartford CT between CT 15 and I-384. 10 lanes (5 each way), plus an HOV lane in each direction.
Near me, I-76 gets to be 11 lanes wide twice: 6 Lanes West and 5 East, and then 6 Lanes East and 5 West. It's never 6x6 though.
If I count where I-295 and I-76/NJ 42 lay next to each other, it's 13 lanes wide there currently (295N: 3 Lanes; 76W/42N, 4 lanes, 76E/42S, 4 lanes, 295S, 2 lanes).
In the Columbus area I think it would have to be I-270 through the OH-161/Morse/Easton exits. I think it's 15 lanes (including exit lanes) at one spot.
In my immediate area, US-17/US-70 over the twin spans is 3 lanes in each direction until the freeway portion ends at Exit 417.
In my half of the state, I-40 has areas of 4 lanes in each direction up in Raleigh (in a few places there is a 5th lane for short distances between certain exits).
QuoteWidest section of freeway in your area
😄😅😂🤣
Thruway exit 24 toll booth. :D
Interstate 80 in Illinois from Brisbin Rd. to Minooka. Two lane, but with extra wide shoulders, especially over Aux Sable creek. I think the area was widened because they were planning for a third lane through the area.
Quote from: jp the roadgeek on July 20, 2018, 04:00:02 AM
For me, it would be I-84 in East Hartford CT between CT 15 and I-384. 10 lanes (5 each way), plus an HOV lane in each direction.
I live in Mystic and work in East Providence. This would be the widest freeway section in my area if this is considered my area. If not, it's probably the Gold Star Bridge or the stretch of I 95 between RI 4 and I 295.
In my area (Philadelphia), it's probably I-95 between I-676 and Columbus Blvd./Exit 20 (aka the Bathtub section): eight mainline lanes with two long parallel ramps (one along each side).
I-75 reaches 16 lanes in two places:
- Very briefly just south of the I-85 merge north of 14th Street (https://www.google.com/maps/@33.7886684,-84.3912945,114m/data=!3m1!1e3): 7 lanes northbound (including 1 HOV) and 9 southbound (including 2 HOV). That's not including the four former southbound lanes no longer in use that now form the median.
- Just north of Windy Hill Rd (exit 260) (https://www.google.com/maps/@33.9056934,-84.4757336,133m/data=!3m1!1e3) in Cobb County: 9 lanes northbound and 7 southbound. That's not including the currently under construction express lanes (not yet shown in this satellite imagery).
In Grand Rapids area, US 131 expands to 11 lanes at the M-6 interchange. 5 northbound lanes, 4 southbound, and an enter/exit lane on each side.
In Dallas, I-35E has 13 lanes, all GP lanes, including an exit-only lane to the Dallas North Tollway. It has 14 if you count an entrance lane that immediately merges into that exit-only lane.
I-635 has 17 lanes east and west of the Dallas North Tollway, including managed and exit-only lanes.
In my interpretation of the topic, I count exit lanes because they're part of the width of the freeway in that section. The topic is the widest section, not the section with the most through lanes, some of which will disappear later, leading to the question of what qualifies as a through lane. I wouldn't count an immediate merge or an exit that diverges from a through lane, because that would be width at a single point, not along a section.
Widest freeway in the Boston area - I-95 (MA 128) at US3/Middlesex Turnpike (Exits 32A-B) in Burlington. 11 lanes total - 4 northbound, 4 southbound, one on northbound C/D road, two on southbound C/D road.
For the Capital District, it would be a tie between all the 4:4 sections of freeways. Nearest one to me is I-87 between NY 155 and NY 2/NY 7 (exits 5-6). For Rochester, it would be the 5:4 section of I-490 between I-590/NY 590 and Penfield Road (exits 21-22). And back when I still lived in Rome, it was the 3:3 section of NY 49 between NY 233 and the end of the NY 365 overlap!
Quote from: Buffaboy on July 20, 2018, 12:01:07 AM
Where I am in the Buffalo area, the widest point would be I-90 at NY 400, where the eastbound I-90 bridge has 5 lanes and the westbound I-90 bridge has 4 lanes including 1 exit lane.
This is tied with I-90 at Cleveland Dr. where traffic between NY 33 and I-290 weaves with I-90 in a section between the Cleveland Drive offramp merge and the Cleveland Drive onramp.
Man, I hate to post a Buffalo example that outdoes those two, but I-290 has ten lanes (https://www.google.com/maps/@43.0026007,-78.8152218,3a,75y,270.41h,94.25t/data=!3m6!1e1!3m4!1sGmcxm4DlEmkk7RyZJpQS2Q!2e0!7i13312!8i6656) between US 62 (Exit 3) and I-990 (Exit 4). I remembered being impressed with how wide it was, as a kid. But I don't know, maybe that doesn't qualify as "in your area". :D
In the Rochester area... yep,
vdeane just beat me to it:
Quote from: vdeane on July 20, 2018, 12:49:58 PM
it would be the 5:4 section of I-490 between I-590/NY 590 and Penfield Road (exits 21-22).
I-390 at Lyell Ave will also have nine lanes after current construction is complete.
And I'm not sure if this section of I-490 (https://www.google.com/maps/@43.1516557,-77.6132866,3a,75y,253.35h,87.47t/data=!3m6!1e1!3m4!1swn9WIJwikwZmGbknUKmnMg!2e0!7i13312!8i6656) counts as having nine. It looks like it does for several hundred feet - five westbound and four eastbound.
Quote from: PHLBOS on July 20, 2018, 10:01:20 AM
In my area (Philadelphia), it's probably I-95 between I-676 and Columbus Blvd./Exit 20 (aka the Bathtub section): eight mainline lanes with two long parallel ramps (one along each side).
There is a short section of I-95 by the PHL Airport with a 4:3:3:4 configuration (4 in the C-D lanes, 3 in the regular lanes)
Quote from: jemacedo9 on July 20, 2018, 01:01:48 PM
Quote from: PHLBOS on July 20, 2018, 10:01:20 AM
In my area (Philadelphia), it's probably I-95 between I-676 and Columbus Blvd./Exit 20 (aka the Bathtub section): eight mainline lanes with two long parallel ramps (one along each side).
There is a short section of I-95 by the PHL Airport with a 4:3:3:4 configuration (4 in the C-D lanes, 3 in the regular lanes)
If you want to include ramps and C-D roadways --
The I-95 (later I-395) Mixing Bowl Interchange Complex near the Pentagon was rebuilt from 1970 to 1973, as part of the reconstruction of VA-350 Shirley Highway. The original Shirley Highway was a four-lane freeway. The Mixing Bowl interchange is where the VA-27 freeway (Washington Blvd.) merges with Shirley Highway and then branches off again. The original interchange had a merge section each way, about 1/3 mile long, with a third "mixing lane" where the vehicles would weave when they wanted to change to the other freeway. The rebuilt interchange has the same conceptual movements, but the weaves take place on grade-separated semi-directional ramps. One cross-section point has 27 lanes on three levels and 10 separate roadways. Eliminating non-freeway parts of the cross-section, the facility is 18 lanes wide.
Mixing Bowl Interchange Complex --
http://www.roadstothefuture.com/Mixing_Bowl.html
Twin Cities is most likely along the 35E/694 duplex with 11 lanes (six eastbound, five westbound). There are a couple other spots with 10.
Quote from: vdeane on July 20, 2018, 12:49:58 PM
For the Capital District, it would be a tie between all the 4:4 sections of freeways. Nearest one to me is I-87 between NY 155 and NY 2/NY 7 (exits 5-6).
Actually, modifying to include c/d roadways, there is a brief 5:3:3 on I-87 between NY 7/NY 2 and NY 7 (exits 6-7). Not sure why I didn't think of this one!
Quote from: Bruce on July 20, 2018, 12:14:44 AM
Interstate 5 caps out at 13 lanes just north of downtown Seattle: 5 southbound lanes (including the exit lane for Mercer Street), 4 reversible express lanes, and 4 northbound lanes.
(https://farm6.staticflickr.com/5500/14048146729_dee2c30d8a_b.jpg) (https://flic.kr/p/npoqAn)
I-5 from Lakeview Boulevard (https://flic.kr/p/npoqAn) by SounderBruce (https://www.flickr.com/photos/sounderbruce/), on Flickr
I-5 south of downtown is 15 lanes. 4+3+4+4:
(https://i.imgur.com/l8tdMak.png)
I-5 between the 518 and 599 in Tukwila is also 13 lanes without any extra carriageways (7 SB, 6 NB).
(https://i.imgur.com/MKKj0g0.png)
Quote from: froggie on July 20, 2018, 08:29:09 AM
QuoteWidest section of freeway in your area
😄😅😂🤣
I'll apply that in my area too.
Quote from: Thequote author=TheHighwayMan394 link=topic=23286.msg2342898#msg2342898 date=1532106814]
Twin Cities is most likely along the 35E/694 duplex with 11 lanes (six eastbound, five westbound). There are a couple other spots with 10.
For now. Once the current 35W reconstruction south of downtown is completed, there will briefly be 12 between 31st and 35th, with 11 between Lake and the downtown split.
But if you include the SB C/D road approaching the Crosstown (since it's possible to get back to the SB mainline via WB 62), then 35W has 14 lanes between 60th and Diamond Lake Rd, since traffic from Diamond Lake must use that C/D road to access SB 35W.
Quote from: Beltway on July 20, 2018, 01:10:34 PM
Quote from: jemacedo9 on July 20, 2018, 01:01:48 PM
Quote from: PHLBOS on July 20, 2018, 10:01:20 AM
In my area (Philadelphia), it's probably I-95 between I-676 and Columbus Blvd./Exit 20 (aka the Bathtub section): eight mainline lanes with two long parallel ramps (one along each side).
There is a short section of I-95 by the PHL Airport with a 4:3:3:4 configuration (4 in the C-D lanes, 3 in the regular lanes)
If you want to include ramps and C-D roadways --
To be fair, the Penns Landing example I listed included ramps as well. With such in mind, your I-95/PHL Airport example is definitely wider.
Even though it's closer to where I live than Penns Landing; I completely forgot about that stretch of I-95 at the airport area. Such was designed with the long-dead I-695 Cobbs Creek Expressway in mind.
The aforementioned I-95 4-3-3-4 configuration by the Airport is is the widest in Philly if you count C/D roads and ramps. (Though wide and high-volume, they function as C/D roads rather than express/local lanes like on I-270 in MD.) Not counting them, some sections of I-95 will be five lanes in each direction between a few of the interchanges once the 95revive project is finished. I'm not sure which of these sections will be the first.
I-70 near the Indianapolis International Airport is the widest in the Indy Metro area, probably the state of Indiana for that matter.
Using C/D ramps that connect I-70 with interchanges at I-465 and the Airport the highway reaches a width of 14 lanes with four lanes on each C/D ramp and 3 lanes each on the mainline.
I-465 just north of I-70 on the east side is the widest without any C/D ramps, at one spot it's 13 lanes wide, six southbound and seven northbound.
Quote from: jakeroot on July 20, 2018, 01:55:46 PM
Quote from: Bruce on July 20, 2018, 12:14:44 AM
Interstate 5 caps out at 13 lanes just north of downtown Seattle: 5 southbound lanes (including the exit lane for Mercer Street), 4 reversible express lanes, and 4 northbound lanes.
(https://farm6.staticflickr.com/5500/14048146729_dee2c30d8a_b.jpg) (https://flic.kr/p/npoqAn)
I-5 from Lakeview Boulevard (https://flic.kr/p/npoqAn) by SounderBruce (https://www.flickr.com/photos/sounderbruce/), on Flickr
I-5 south of downtown is 15 lanes. 4+3+4+4:
(https://i.imgur.com/l8tdMak.png)
I-5 between the 518 and 599 in Tukwila is also 13 lanes without any extra carriageways (7 SB, 6 NB).
(https://i.imgur.com/MKKj0g0.png)
This is almost creepier than the pic of the lone SUV on ON 401 when it was completely shutdown :|
Quote from: Bickendan on July 20, 2018, 11:50:14 PM
This is almost creepier than the pic of the lone SUV on ON 401 when it was completely shutdown :|
Yeah, those slow-mo captures from Google helicopters really get some cool road photos, since they never have cars (unlike satellite shots). Kind of creepy, though!
Where you
do see cars is when traffic is sitting still. Take traffic turning right at this intersection. No movement (they're giving way to oncoming traffic, ergo no movement), so they make it into the shot. Apparently light timing isn't too great, as other cars make it in as well:
(https://i.imgur.com/iyNFNkK.png)
^ I'm wondering if they're using some sort of LIDAR to create those 3D renditions.
Quote from: adwerkema on July 20, 2018, 12:07:46 PM
In Grand Rapids area, US 131 expands to 11 lanes at the M-6 interchange. 5 northbound lanes, 4 southbound, and an enter/exit lane on each side.
US-131 also widens to nine lanes briefly between exits 86 and 87 (five northbound, four southbound).
Non-freeway, but M-37 between 60th St and M-6 is very briefly seven lanes southbound (two left turn lanes to NB M-37 [and 60th St], three through lanes, two right turn lanes to WB M-6). NB M-37 only gets up to 4 lanes in the same area. What's more remarkable is that two miles south of this, SB M-37 is one lane.
Quote from: froggie on July 21, 2018, 01:28:40 PM
^ I'm wondering if they're using some sort of LIDAR to create those 3D renditions.
That's actually a good point, since LIDAR has that same funky look. They must be capturing photos and LIDAR imagery at the same time.
Quote from: ftballfan on July 21, 2018, 02:27:28 PM
Non-freeway, but M-37 between 60th St and M-6 is very briefly seven lanes southbound (two left turn lanes to NB M-37 [and 60th St], three through lanes, two right turn lanes to WB M-6). NB M-37 only gets up to 4 lanes in the same area. What's more remarkable is that two miles south of this, SB M-37 is one lane.
I also find the 7 lanes down to 1 remarkable. Google street view:
(https://www.aaroads.com/forum/proxy.php?request=http%3A%2F%2Ffarm2.staticflickr.com%2F1784%2F43578775701_13a0dd053f_b.jpg&hash=dcdf635d1b8298460907bdb0192410c1acc3f15e)
It's funny to think that a driver could turn right from 60th onto M-37 and cross 6 lanes if they wanted to.
Two miles later...
(https://www.aaroads.com/forum/proxy.php?request=http%3A%2F%2Ffarm1.staticflickr.com%2F843%2F43578775331_deaf2e3582_b.jpg&hash=dbb7f7caa82be82e86167369e22992355f37722b)
In a similar example of lane reductions, the NJ Turnpike sounbound narrows from 6 lanes to 2 lanes in a span of just 2 exits. Both exits are single lane exits, none of which are 'Exit Only' exits!
Quote from: jeffandnicole on July 22, 2018, 10:42:03 PM
In a similar example of lane reductions, the NJ Turnpike sounbound narrows from 6 lanes to 2 lanes in a span of just 2 exits. Both exits are single lane exits, none of which are 'Exit Only' exits!
I'm curious - what portion is this?
Dover area: DE-1 is our only full expressway and it gets to 6 lanes at the toll booths in Central Dover
(https://cdn.pbrd.co/images/HvJ4QC4.png)
Northern Delmarva Peninsula (I consider it to start at the Chesapeake and Delaware Canal south to the bottom of Kent County, DE): DE-1 at the Roth Bridge over the Canal at 6 lanes (with potential for expansion to 8).
(https://cdn.pbrd.co/images/HvJ3XyO.png)
All of Delaware: I-95 at the I-295/I-495/DE-141/US-202 interchange at 10 lanes for I-95 with another 2 lane C/D road southbound to access DE-141 and an extra 2 lanes for I-295 northbound exiting.
(https://cdn.pbrd.co/images/HvJ698C.png)
Quote from: adwerkema on July 22, 2018, 10:48:38 PM
Quote from: jeffandnicole on July 22, 2018, 10:42:03 PM
In a similar example of lane reductions, the NJ Turnpike sounbound narrows from 6 lanes to 2 lanes in a span of just 2 exits. Both exits are single lane exits, none of which are 'Exit Only' exits!
I'm curious - what portion is this?
WSDOT has a fetish for drop-lanes after an exit, to reduce the number of cars stopping to merge in an exit-only lane (preferring cars went down to the end of the lane to merge). But this sounds like it's on another level.
For my immediate area it's the Ohio Turnpike, which is 6 total lanes
Quote from: adwerkema on July 22, 2018, 10:48:38 PM
Quote from: jeffandnicole on July 22, 2018, 10:42:03 PM
In a similar example of lane reductions, the NJ Turnpike sounbound narrows from 6 lanes to 2 lanes in a span of just 2 exits. Both exits are single lane exits, none of which are 'Exit Only' exits!
I'm curious - what portion is this?
In this area, south of Interchange 6, it drops from 6 lanes to 3 lanes. Zoom in to see the actual reductions. https://goo.gl/maps/RyRLrfLVZTP2
And in this area, adjacent to Interchange 4, it drops again from 3 lanes to 2 lanes, completing the 6 to 2 lane reduction. https://goo.gl/maps/LFF7rUPUWJx
Quote from: jeffandnicole on July 23, 2018, 08:52:09 AM
Quote from: adwerkema on July 22, 2018, 10:48:38 PM
Quote from: jeffandnicole on July 22, 2018, 10:42:03 PM
In a similar example of lane reductions, the NJ Turnpike sounbound narrows from 6 lanes to 2 lanes in a span of just 2 exits. Both exits are single lane exits, none of which are 'Exit Only' exits!
I'm curious - what portion is this?
In this area, south of Interchange 6, it drops from 6 lanes to 3 lanes. Zoom in to see the actual reductions. https://goo.gl/maps/RyRLrfLVZTP2
And in this area, adjacent to Interchange 4, it drops again from 3 lanes to 2 lanes, completing the 6 to 2 lane reduction. https://goo.gl/maps/LFF7rUPUWJx
Because Philadelphia.
I wonder if a case has ever been made for widening to six lanes all the way from there to the Delaware Memorial Bridge. Only ever driven that stretch once, and it was early morning. Traffic seemed to be light enough and flowing quite well.
For a single freeway: Dan Ryan (I-90/94), 17 lanes. 3 locals, 4 express
For multiple freeways: I-355/I-88 side by side, 16 lanes at the widest point. I-88 has 5 eastbound, 4 west. I-355 has 3 northbound, 4 south.
Quote from: webny99 on July 23, 2018, 09:39:20 AM
Quote from: jeffandnicole on July 23, 2018, 08:52:09 AM
Quote from: adwerkema on July 22, 2018, 10:48:38 PM
Quote from: jeffandnicole on July 22, 2018, 10:42:03 PM
In a similar example of lane reductions, the NJ Turnpike sounbound narrows from 6 lanes to 2 lanes in a span of just 2 exits. Both exits are single lane exits, none of which are 'Exit Only' exits!
I'm curious - what portion is this?
In this area, south of Interchange 6, it drops from 6 lanes to 3 lanes. Zoom in to see the actual reductions. https://goo.gl/maps/RyRLrfLVZTP2
And in this area, adjacent to Interchange 4, it drops again from 3 lanes to 2 lanes, completing the 6 to 2 lane reduction. https://goo.gl/maps/LFF7rUPUWJx
Because Philadelphia.
I wonder if a case has ever been made for widening to six lanes all the way from there to the Delaware Memorial Bridge. Only ever driven that stretch once, and it was early morning. Traffic seemed to be light enough and flowing quite well.
I think the bigger issue there is that the NJ Turnpike, more or less, serves as the through route to the Delaware Memorial Bridge and I-295 serves as the local route (from about I-195). Being the cheapskate that I am, I usually take I-295 instead even though it's much more stressful to drive (once north of Woodbury).
Quote from: webny99 on July 23, 2018, 09:39:20 AM
Quote from: jeffandnicole on July 23, 2018, 08:52:09 AM
Quote from: adwerkema on July 22, 2018, 10:48:38 PM
Quote from: jeffandnicole on July 22, 2018, 10:42:03 PM
In a similar example of lane reductions, the NJ Turnpike sounbound narrows from 6 lanes to 2 lanes in a span of just 2 exits. Both exits are single lane exits, none of which are 'Exit Only' exits!
I'm curious - what portion is this?
In this area, south of Interchange 6, it drops from 6 lanes to 3 lanes. Zoom in to see the actual reductions. https://goo.gl/maps/RyRLrfLVZTP2
And in this area, adjacent to Interchange 4, it drops again from 3 lanes to 2 lanes, completing the 6 to 2 lane reduction. https://goo.gl/maps/LFF7rUPUWJx
Because Philadelphia.
I wonder if a case has ever been made for widening to six lanes all the way from there to the Delaware Memorial Bridge. Only ever driven that stretch once, and it was early morning. Traffic seemed to be light enough and flowing quite well.
The NJ Turnpike definitely needs a widening in the 2 lane section to 3 lanes per direction. When the PA Turnpike/I-95 interchange opens up it'll give it a slight reprieve, but it's going to be needed eventually.
Early mornings are generally quite light. Even mid-day traffic can move well. But rush hours (especially the afternoon) between Interchanges 4 - 3 Southbound, Friday - Sunday weekend traffic, and holiday traffic can bog it down pretty good.
The widest in New York outside of a toll booth is I-278 at the west end of the Verrazano Bridge. No idea about the current configuration, but it's no fewer than 12 lanes across, possibly 14-15. The George Washington Bridge is technically 14 lanes, but across 2 levels, so it and the approaches are never more than 9 lanes wide in New York.
Widest Upstate is the aforementioned I-87/NY 7 concurrency with 11 lanes. 10+ lanes is actually pretty rare statewide, with only a handful of instances. Anything with above 8 lanes (and most cases of 8 lanes, in fact) involves a bridge, auxiliary lanes, or a C/D road.
Boise (and Idaho) would be I-84 between I-184 and Cole/Overland Rd interchanges. 6 lanes eastbound and 5 lanes westbound (11 total):
(https://i.imgur.com/VeJhrkm.png)
As for the most lanes on one carriageway, just west of that there's 7 eastbound lanes (but only 3 westbound):
(https://i.imgur.com/NUQis0j.png)
Street view of that part:
(https://i.imgur.com/rDLxjCB.png)
NJ Turnpike also has a section with 14 lanes. If you want to count the transition point between Car/Truck setup and Eastern/Western spur, there are briefly 16+ lanes there. And of course the Driscoll Bridge of the Garden State Parkway, with 15 lanes (+6 shoulders), is the widest bridge in the world.
Quote from: bzakharin on July 23, 2018, 05:59:20 PM
NJ Turnpike also has a section with 14 lanes. If you want to count the transition point between Car/Truck setup and Eastern/Western spur, there are briefly 16+ lanes there. And of course the Driscoll Bridge of the Garden State Parkway, with 15 lanes (+6 shoulders), is the widest bridge in the world.
And that doesn't even include the US 9 bridges. If you include those, the entire complex has 21 lanes.
And a little Google Street View of each.
Quote from: ET21 on July 23, 2018, 09:53:00 AM
For a single freeway: Dan Ryan (I-90/94), 17 lanes. 3 locals, 4 express
From Root Street (https://goo.gl/maps/UWCCgdhQH5n), looking north.
QuoteFor multiple freeways: I-355/I-88 side by side, 16 lanes at the widest point. I-88 has 5 eastbound, 4 west. I-355 has 3 northbound, 4 south.
From Finley Road (https://goo.gl/maps/qk6rqrWQhM92), looking east.
Let's not forget the I-5/I-405 junction in Orange County CA, near where I once lived. I-5 momentarily bloats out to 26 lanes, divided among six carriageways for mainline, HOV, and truck lanes in both directions.
I-4 was the widest in Orlando between Colonial and Ivanhoe, but the I-4 ultimate has that narrowed. Though when completed the new I-4 will have 16 lanes overall, plus some sections when the beyond the ultimate project is built with even more as there will be some areas with c/d roadways in addition to the extended HOT lanes.
Madison
2-3-3-2 on "The Interstate" at US 151.
The c/d carriageways make it that wide.
Beyond that, The Interstate is briefly 9 lanes wide (4-5) on the north end of the Badger Interchange.
Maryland:
I-95/I-495 at the Woodrow Wilson Bridge (to Alexandria, Virginia) is 10 lanes, with two additional lanes not currently used.
I-95 in the Laurel and Beltsville area of Prince George's County (near MD-200) is 14 lanes across 4 roadways.
I-270 in Rockville, Montgomery County (between Montrose Road and MD-189) is 12 lanes across 4 roadways.
In Nevada, the current widest is probably I-15 in Las Vegas, just north of I-215. With the movements to/from the 215 and the parallel C/D roads, the configuration is 2+6+6+2 (the "6" are comprised of 1 auxiliary lane, 3 general purpose through lanes, and 2 express through lanes).
This is likely to change with I-15 Project Neon, as the width of freeway will be dramatically widened just south of US 95, with southbound C/D road and new HOV lanes.
Quote from: gonealookin on July 20, 2018, 12:16:52 AM
There are a couple spots between the Reno airport and I-80 where northbound I-580/US 395 bloats up to 7 lanes. Southbound has 4 through lanes in that area and sometimes an exit-only lane. I'm not sure it ever gets up to 12 lanes; it might max out at either 7 + 4 or 6 + 5.
It maxes out at 6 through lanes northbound and 4 through lanes southbound, with both directions having auxiliary lanes at some points but not usually at the same time. The point where it gets closest 12 total lanes only counts depending on how you look at it. Southbound, at the Mill St exit is 4 through lanes plus the lane drop to Mill St–directly opposite that point northbound is the off ramp to E Second/Glendale, with six through lanes and the option & lane drop already starting to diverge to the off ramp.
Where I-696 is "inside" M-10 for about a mile at the US-24 "Mixing bowl" interchange, I counted 19 lanes including some exit and merge lanes.
https://www.google.com/maps/@42.4873745,-83.2787835,1220m/data=!3m1!1e3?hl=en
Charleston, SC
I-26 at the interchange with Ashley Phosphate Rd and US 52/78. Twelve lanes across.
Whether this really counts as a single freeway is debatable, but at this location just southwest of the Atlanta airport (https://www.google.com/maps/@33.6204528,-84.4696076,279m/data=!3m1!1e3) I count a total of twenty-two (22) lanes strewn across six carriageways. From north to south:
- C/D lanes from I-85 south/I-285 west (4)
- I-285 westbound (4)
- I-85 southbound (4)
- I-85 northbound (3)
- I-285 eastbound (3)
- C/D lanes from I-85 south/I-285 south/GA 14 Conn east (4)
In my area I-75 is eight lanes between Saginaw and Flint. There isn't anything wider than that around here.