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National Boards => General Highway Talk => Topic started by: ShawnP on July 06, 2011, 09:36:29 PM

Title: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: ShawnP on July 06, 2011, 09:36:29 PM
I'm thinking I-95 in the northeast for 6 lanning, I-5 in California for 8 lanning and no clue on 10 lanning.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: Bryant5493 on July 06, 2011, 10:05:32 PM
I-285 is at least six lanes for all of its 60+ miles.

I-75 in Georgia is at least six lanes from the Tennessee-Georgia state line and through all of South Georgia, I think (the South Georgia road construction should be done now).


Be well,

Bryant
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: ShawnP on July 06, 2011, 10:12:15 PM
I like Georgia's six lanning of I-75 and I-95. South Carolina and North Carolina are a joke with their treatment of I-95.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: RoadWarrior56 on July 06, 2011, 10:13:59 PM
The six-lane segment of I-75 contines south into Florida all the way to the Florida Turnpike, which is over 100 miles south of the Georgia line.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: CL on July 06, 2011, 10:27:16 PM
I-15 is at least six lanes from US-6 in Spanish Fork to 2700 North in Pleasant View (through Provo, Salt Lake, and Ogden metro areas), a distance of 91 miles.

Counting the HOV lane, an eight-lane stretch of I-15 will exist after December 2012 from US-6 in Spanish Fork to Layton Parkway in Layton, some 73 miles in length.

I wouldn't be surprised if I-25 through the Front Range rivals at least the six-lane mileage through the Wasatch Front, as they both share a vertically-stretched urban conglomeration.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: wriddle082 on July 06, 2011, 10:33:42 PM
I believe I-75 in GA still has a gap in the six-laning in Macon, but I-475 generally bridges that gap in the general corridor.

I will say that I-95 in much of SC doesn't necessarily need the six-laning right away since it only goes through one major population center in the state (Florence, and it's six lanes there), but possibly widening it from Florence to NC would be needed due to the overflow of the I-20 traffic.  I think SC has a greater need in trying to widen I-26 from the I-385 split all the way to I-95.

I'm not as familiar with I-95 in NC or in VA south of Petersburg, but I'm sure it probably could use some extra lanes, perhaps south of I-40 and north of US 64 (direct routes to Raleigh).

Kentucky is really progressing well with widening I-65 and I-75 throughout the state.  I think I-75 is now six lanes from London (possibly Corbin) all the way to the Ohio River (and let's not forget OH's progress on 75 north of Dayton).  I-65 is now six lanes from the TN line to just past the Louie Nunn Cumberland Parkway and from the Wendell Ford Western KY Parkway on to the Ohio River, and they have plans to bridge that gap in the coming years.

I don't think TN has plans in place to continue the six-laning of 65 down to Goodlettsville or 75 down to Knoxville, but it wouldn't be easy for them to do so.  65 has a short dicey stretch between Millersville and Ridgetop that would need a bit of blasting, and 75 has Jellico Mountain.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: ShawnP on July 06, 2011, 10:36:42 PM
Kentucky has 5 miles going now on I-65 for six lanning and 5 more in the pipeline. Scotty's Construction has offered to finance the rest to Elizabethtown themselves for state reimbursement. It's badly needed as their have been a ton of really bad accidents with full blown crossovers in the area.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: NE2 on July 06, 2011, 11:35:22 PM
Quote from: Bryant5493 on July 06, 2011, 10:05:32 PM
I-75 in Georgia is at least six lanes from the Tennessee-Georgia state line and through all of South Georgia, I think (the South Georgia road construction should be done now).
Unless things have changed very recently, it's four lanes between I-16 and the north I-475 junction, and so is I-475 to its first interchange (data from OpenStreetMap (http://www.itoworld.com/product/data/ito_map/main?view=56&lat=32.900370754121376&lon=-83.7474944354742&zoom=12)). But there are eight lanes total if you combine I-75 and I-475, so I'd count it.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: DeaconG on July 07, 2011, 01:11:36 AM
Florida's been real proactive in six laning I-95 through the state, the only two gaps where it's four laned is between I-4 in Daytona and the Beachline (part of which is being started as we speak) and between Palm Bay and Fort Pierce (unknown when, if ever, that stretch will get done).  I-4 is at least six lanes between Tampa and Sanford (with eight lanes between Disney World and Altamonte Springs).

I would be absolutely thrilled if they six laned I-10 between Jacksonville and Lake City/I-75, but I'll just have to count my blessings that they're finally getting it done between I-295 and SR 23.

And mad props to Georgia for their widening of I-95, they've been at it for at least...six, eight years?  IIRC, the last remaining bottleneck was in the Brunswick area and they were working on it the last time I passed that way (Christmas 2009).

North Carolina should be kicked in the taint for neglecting I-95, hard and repeatedly. :pan:  It's a traveshamockery-you do NOT want to be on I-95 there during the Christmas holidays-it's the world's fastest parking lot!
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: RoadWarrior56 on July 07, 2011, 07:12:02 AM
I believe there was a news story in Georgia in the last few months that celebrated the completion of the last segment of I-95 in the state as a six-lane facility.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: kharvey10 on July 07, 2011, 09:21:01 AM
I-95 is 6 lanes north of I-4 and at least 6 lanes when you approach the Space Coast.  It is still 4 lanes from I-4 to FL 528.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: nexus73 on July 07, 2011, 10:56:13 AM
In Oregon, I-5 is 6-laned from Salem to Portland.  That's the longest stretch of 6 or more lanes in Oregon, almost 50 miles.

Rick
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: DTComposer on July 07, 2011, 11:10:05 AM
I-5 is at least 6 lanes from the Mexico Border through the CA-99 split, which is about 210 miles.

And (I'm pretty sure) the only sections that are only 6 lanes is between CA-91 and I-605, so once that upgrade is (finally) complete it would be at least 8 lanes for that entire length.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: 1995hoo on July 07, 2011, 11:25:29 AM
Quote from: kharvey10 on July 07, 2011, 09:21:01 AM
I-95 is 6 lanes north of I-4 and at least 6 lanes when you approach the Space Coast.  It is still 4 lanes from I-4 to FL 528.

As of last week there were some four-lane sections south of FL-528 in the Melbourne area, but the construction to widen it to six lanes was very far along and looked likely to be done fairly soon (certainly by the end of the year).

Regarding the point DeaconG made about Georgia, there was no roadwork on I-95 in Georgia, at least not on the northbound carriageway, and it was either six or eight lanes through the entire state, narrowing when it came time to cross to South Carolina. It was very pleasant driving on there. The four-lane setup in South Carolina became that much more annoying around Ridgeland because the speedtrap was in full force and a lot of the drivers slowed down to 55 (the speed limit is 70). With two lanes on a side, there's no way to get around that sort of crap.


If you don't count the very brief segments on the flyover ramps at the Springfield Interchange in Virginia and the College Park Interchange in Maryland, I-95 is either six or eight lanes (minimum) from the I-85 interchange in Virginia (Exit 51) to roughly the exit for DE-4 in Wilmington (Exit 6), a distance of about 237 miles. I-95 narrows to four lanes for much of the portion through Wilmington; it's also four lanes for a portion of the area between Philadelphia and Trenton. The segment I mention between Petersburg and Wilmington also has a few sections with more than four or eight lanes.



Edited to fix a typo: I said "four or eight lanes (minimum)" when I meant "SIX or eight lanes (minimum)." In other words, from Petersburg, VA, to Wilmington, DE, I-95 has no fewer than six lanes total across all carriageways except for the very short portions that cross flyovers at the Springfield and College Park Interchanges.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: pianocello on July 07, 2011, 11:45:17 AM
What about 10 lanes? The longest stretch I know of is the Borman in NW Indiana... I think it's 10 lanes all the way from I-94/IL-394 to I-65

Even if it's not, the Borman would be part of the longest 8-lane stretch I know of, going from the Indiana E-W Toll Road (or I-65, I don't remember which) into Illinois and along the Tri-State Tollway to IL-173 at a distance of about 90 miles. The 6-laning goes another 60 miles east to Benton Harbor, Michigan and I would assume as far as Milwaukee, meaning 200+ miles of 6 lanes
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: Bryant5493 on July 07, 2011, 12:13:20 PM
With respect to I-75 through Macon, I forgot about that stretch being four-laned. The pavement's really rough through there, as well.


Best regards,

Bryant
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: vdeane on July 07, 2011, 12:23:17 PM
I believe Ontario wants to six-lane 401 over the entire route, so once that's done it'll be six lanes from the DRIC to the Quebec border, about 825 km.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: DeaconG on July 07, 2011, 12:34:34 PM
Quote

As of last week there were some four-lane sections south of FL-528 in the Melbourne area, but the construction to widen it to six lanes was very far along and looked likely to be done fairly soon (certainly by the end of the year).


October of this year is the projected end of the six-laning.  They're still cleaning up the Wickham Road and New Haven Avenue (US 192) overpasses where they had lane shifts, but everything else is done other than repaving.  The section between SR 528 and SR 406 (Garden Street) is just starting and the section between SR 406 and SR 400 in Volusia County might-MIGHT start in 2014.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: Mark D on July 07, 2011, 12:39:53 PM
Quote from: DeaconG on July 07, 2011, 01:11:36 AM
North Carolina should be kicked in the taint for neglecting I-95, hard and repeatedly. :pan:  It's a traveshamockery-you do NOT want to be on I-95 there during the Christmas holidays-it's the world's fastest parking lot!

LOL! I haven't ever been on it through NC, but I have been less impressed by I-95 in South Carolina than south of there. All of I-95 in Georgia is now 6 lanes, and traffic flowed beautifully when I was in Brunswick a couple weeks ago. The current widening of 95 in FL is from the Brevard/Volusia line to the Edgewater exit.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: akotchi on July 07, 2011, 01:06:48 PM
The NJ Turnpike is at least 10 lanes (albeit across four carriageways) from Exit 8A to Exit 14, which is about 30 miles.  Add about 12 more if you count the eastern and western alignments as one roadway.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: formulanone on July 07, 2011, 01:37:54 PM
I-95 is 8 lanes from I-195/SR112 in Miami-Dade county to SR786 in northern Palm Beach county. Most of it is actually 10+ lanes wide, but it reduces to eight from SR 870 to Congress Avenue for about 25 miles. Total would thus be about 70-80 miles of 8-laned interstate.

I don't think it needs the extra lanes from SR 70 north to SR 60, and from SR 528 to SR 400...I've never seen it very congested, but planning ahead never hurt.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: english si on July 07, 2011, 02:29:04 PM
The M6-M6 Toll-M6-A74(M)-M74 route gives you, other than through the M55 junction (southbound only for about 100yrds, northbound about 3/4 of a mile), about 300 miles of continuous 6+-lane mainline. If you count the M1 south of there (as the ramps from the M6 to M1 and vice versa are three lanes per direction) you get 364 miles of having more than three lanes each way on the route (save the very short bit north of Preston), allow the 2-lane M1-M25 and M25-M20 ramps and you could reach 447 miles, going over the Dartford Crossing to the Channel Tunnel.

For 8 lanes, (other than a some junctions - M1/M25 where you travel on 2-lane slip roads, A41, M40, M4, M3, A317, A3 and A217 junctions, where it drops down to 6 lanes through the junction) you can drive from Luton to Godstone, a distance of 62 miles.

It was planned to have the M1 8-laned north of Luton to at least Milton Keynes (if not the M6), but that's not happening now. It is still an aim to 8-lane Godstone to the M26 on the M25.

About 5 years ago, the plans were for almost all the M1 (only the bits south of Leeds, between the M6 and M69 and east of Leeds to remain 6-lane), M25 (only M20 to M26 left out) and M6 between Wolverhampton and Preston to be 8-laned, not to mention all the other bits (mostly near London and Manchester).
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: KEK Inc. on July 07, 2011, 02:51:49 PM
I-5 is 6 lanes from Vancouver, WA, to Exit 55.  Eventually, it will be 6 lanes from Portland to Seattle.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: DeaconG on July 07, 2011, 02:57:50 PM
Quote from: formulanone on July 07, 2011, 01:37:54 PM
I-95 is 8 lanes from I-195/SR112 in Miami-Dade county to SR786 in northern Palm Beach county. Most of it is actually 10+ lanes wide, but it reduces to eight from SR 870 to Congress Avenue for about 25 miles. Total would thus be about 70-80 miles of 8-laned interstate.

I don't think it needs the extra lanes from SR 70 north to SR 60, and from SR 528 to SR 400...I've never seen it very congested, but planning ahead never hurt.

Thanksgiving.  Christmas.  New Years.
Weekends clogs it with serious truck traffic.
And after EVERY Shuttle launch...this last one's gonna be a total cluster[redacted].

Personally, I don't think it will EVER be six laned between SR 406 and SR 400 because I don't think the money will be there-they can plan all they want, but I don't think it will happen.  They also have been studying six laning the Beachline from Cape Canaveral to I-95...now that Shuttle is effectively hors de combat I think that study will be quietly shelved.  We'll be lucky to get the new westbound Beachline bridge over the Indian River started in 2013.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: rte66man on July 07, 2011, 03:47:44 PM
OKc doesn't have losts of freeway above four lanes.  I 40 is six lanes from Yukon to Midwest City (about 30 miles).  Projects are ongoing to widen I40 west another six miles.  I35 is six lanes from 2nd St in Edmond to the southern I44 split in OKC, then again from the Fort Smith junction south to Norman (another 30 miles or so).  I44 is six lanes from the I35 junction by Frontier City south to the I240 split. 

rte66man
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: ftballfan on July 07, 2011, 09:40:26 PM
I-96 is six lanes between Exit 133 and Detroit, a distance of nearly 60 miles.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: Revive 755 on July 07, 2011, 10:01:16 PM
Quote from: pianocello on July 07, 2011, 11:45:17 AM
Even if it's not, the Borman would be part of the longest 8-lane stretch I know of, going from the Indiana E-W Toll Road (or I-65, I don't remember which) into Illinois and along the Tri-State Tollway to IL-173 at a distance of about 90 miles. The 6-laning goes another 60 miles east to Benton Harbor, Michigan and I would assume as far as Milwaukee, meaning 200+ miles of 6 lanes

There's a short eight lane stretch in Wisconsin south of WI 50, otherwise I-94 is indeed six lanes into the Milwaukee area.

Long term, the Tri-State/I-94 corridor is supposed to be eight lanes all the way into the Milwaukee area.  Rumor has it the northern end of the Tri-State near IL 173 will be widened in the next year or two.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: JREwing78 on July 08, 2011, 12:15:36 AM
In addition, in Wisconsin the I-39/90/94 corridor from Portage south to Madison is 6-laned, as well as a 5-mile stretch of I-94 east of Madison.

Plans are afoot to 6-lane the I-39/90 stretch between Madison and Beloit. That would make for a 95 mile continuous stretch of 6 or 8-lane interstate from Portage, WI to Rockford, IL. Once I-90 is 6-laned over the existing 4-lane stretch from Rockford to the Chicago suburbs, you would have a continuous 6-lane or more stretch for over 275 miles, between Portage, WI and Benton Harbor, MI.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: Stephane Dumas on July 08, 2011, 09:32:14 AM
Hwy 401 seems to have lots of 6-lanes section between Oshawa and Windsor.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: Chris on July 08, 2011, 10:38:19 AM
The longest 10 lane-section is probably on Interstate 10 from Santa Monica towards San Bernardino. Another long wide section is the New Jersey Turnpike once the widening is completed.

There are several 100+ mile sections of six-lane freeways in Europe, especially in France, Italy, Germany and the United Kingdom.

Algeria has a 1250 kilometer (780 mile) freeway that has six lanes throughout the country.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: agentsteel53 on July 08, 2011, 11:16:12 AM
I-10 and I-5 both drop to two lanes in the East LA Interchange, I believe.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: vtk on July 08, 2011, 05:05:06 PM
Quote from: wriddle082 on July 06, 2011, 10:33:42 PM
I don't think TN has plans in place to continue the six-laning of 65 down to Goodlettsville or 75 down to Knoxville, but it wouldn't be easy for them to do so.  65 has a short dicey stretch between Millersville and Ridgetop that would need a bit of blasting, and 75 has Jellico Mountain.

I don't think that's the actual name of that mountain.  However, I'm fairly certain anyone who's driven that stretch of I-75 more than once will know exactly which mountain you're referring to.  Perhaps the mountain should be renamed.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: 6a on July 09, 2011, 05:44:00 PM
Quote from: vtk on July 08, 2011, 05:05:06 PM

I don't think that's the actual name of that mountain.  However, I'm fairly certain anyone who's driven that stretch of I-75 more than once will know exactly which mountain you're referring to.  Perhaps the mountain should be renamed.

The mountain running along 75 is Pine Mountain, although there is a Jellico Mountain very near there to the west of the town of Jellico.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: Landshark on July 09, 2011, 09:30:25 PM
Quote from: KEK Inc. on July 07, 2011, 02:51:49 PM
I-5 is 6 lanes from Vancouver, WA, to Exit 55.  Eventually, it will be 6 lanes from Portland to Seattle.

It is 6 lanes from exit 88 to exit 224 (136 miles)  on I-5 in Western Washington.  Currently WSDOT is widening I-5 between Chehalis and Grand Mound (exit 88).  Eventually I-5 will be at least 6 lanes through the entire state.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: Bickendan on July 10, 2011, 10:32:52 PM
Inclusive of up to Blaine and onto BC 99?
Now, if Portland would do something about the 4-lane segment on the Eastbank Freeway, I-5 could be six-laned from Salem to the border (and eventually, from I-105 north... oh, wishful thinking!).
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: nexus73 on July 10, 2011, 11:59:05 PM
Quote from: Bickendan on July 10, 2011, 10:32:52 PM
Inclusive of up to Blaine and onto BC 99?
Now, if Portland would do something about the 4-lane segment on the Eastbank Freeway, I-5 could be six-laned from Salem to the border (and eventually, from I-105 north... oh, wishful thinking!).

Since the reconstruction of the I-5/58 interchange, there is a brief segment of 3 lanes northbound on I-5.  Also, take note that the McKenzie River I-5 bridges are built to handle 3 lanes each and that the currently under construction Willamette River I-5 bridges will be 3 lanes per bridge when they are complete.  This suggests that I-5 gets 6-laned from I-5/58 to perhaps Coburg.

My preference would be for I-5 in Oregon to be 6-lane down to Cottage Grove since that city is a traffic generator.  Going south I would 6-lane the Umpqua Valley area (Sutherlin to Myrtle Creek) and the Rogue Valley area (Grants Pass to Ashland) with 5-lane sections for all uphill grades in the countryside.  California has done a fine job with the 5-lane setup on I-5 north of Redding and they have a section of 6-lane in the Redding area already that could tie in well with the rest of the freeway heading south to Sacramento. 

Rick
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: MeanMeosh on July 11, 2011, 06:33:08 PM
Some others:

IH-10 has 6+ from the CA-86S expressway in Indio all the way to its terminus, and 8+ from Yucaipa to the 405, though it may narrow to 2 through lanes temporarily at one of the downtown L.A. interchanges.  IH-15 is also 6+ from its terminus to IH-40 in Barstow, a whopping 185 miles.

IH-45 will soon have 8+ continuously from League Line Road in Conroe to at least NASA Road 1 (66 miles - though not sure where the 8-laning ends now, exactly), and 6+ from the Walker/Montgomery County Line to its terminus in Galveston (approx. 102 miles), once construction is complete from Conroe northward.  If you count IH-45 and US-75 as a single highway, it has 6+ continuously from the north end of the Corsicana bypass to TX-121 south of McKinney, for a total of 79 miles. 

IH-35 is also 6+ continuously from Exit 280 in Bell County to IH-410 south of San Antonio, or 135 miles, if you count the "express" and "local" lanes in Austin as 4 combined lanes in each direction.  Expansion is currently in progress to Belton, so counting the 6-lane segment south of Temple, you'll have a total of 151 miles of 6-laned freeway for your driving pleasure.  Or not, considering how awful traffic is on 35 through Austin.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: golden eagle on July 11, 2011, 10:00:07 PM
How many lanes are on the stretch of I-95 from Washington to Boston?
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: NE2 on July 11, 2011, 10:11:03 PM
Quote from: golden eagle on July 11, 2011, 10:00:07 PM
How many lanes are on the stretch of I-95 from Washington to Boston?
None through central New Jersey :)
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: 1995hoo on July 11, 2011, 11:09:22 PM
Quote from: golden eagle on July 11, 2011, 10:00:07 PM
How many lanes are on the stretch of I-95 from Washington to Boston?

Varies. But there are stretches in Delaware and Pennsylvania that have two lanes on each side (four lanes total).
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: agentsteel53 on July 11, 2011, 11:15:52 PM
95 drops to one lane at 93 in Canton, MA.  in fact, it is a cloverleaf, exiting itself.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: warderjack on July 12, 2011, 12:49:34 AM
Quote from: nexus73 on July 10, 2011, 11:59:05 PM
Quote from: Bickendan on July 10, 2011, 10:32:52 PM
Now, if Portland would do something about the 4-lane segment on the Eastbank Freeway, I-5 could be six-laned from Salem to the border (and eventually, from I-105 north... oh, wishful thinking!).

Since the reconstruction of the I-5/58 interchange, there is a brief segment of 3 lanes northbound on I-5.  Also, take note that the McKenzie River I-5 bridges are built to handle 3 lanes each and that the currently under construction Willamette River I-5 bridges will be 3 lanes per bridge when they are complete.  This suggests that I-5 gets 6-laned from I-5/58 to perhaps Coburg.

My preference would be for I-5 in Oregon to be 6-lane down to Cottage Grove since that city is a traffic generator.  Going south I would 6-lane the Umpqua Valley area (Sutherlin to Myrtle Creek) and the Rogue Valley area (Grants Pass to Ashland) with 5-lane sections for all uphill grades in the countryside.  California has done a fine job with the 5-lane setup on I-5 north of Redding and they have a section of 6-lane in the Redding area already that could tie in well with the rest of the freeway heading south to Sacramento. 

Rick

It does appear that ODOT is having some foresight by making the recently reconstructed interchange with OR 58 wide enough to accommodate six-lanes, as well as the new bridge over the Willamette. Also, just north of Eugene a recently replaced bridge going over some minor stream/creek is clearly built with six-lanes in mind as well. If they six-laned it from south of Eugene up to Coburg, that would be great for game days at the University of Oregon, but it would still mean a huge bottleneck once I-5 choked back down to 4-lanes. I think long term, we will see six lanes extending south from Salem to Albany/to OR 34, and eventually meeting with six-lane roadway coming up from Eugene. My guess is that this will take something on the order of 20-30 years.

Still, these areas don't need the extra lanes nearly as badly as OR 217 does. They are building add/drop lanes and long exit only lanes, but the lack of a consistent third lane each way forces a lot of weaving. This highway is majorly underpowered for what it's being asked to do. I would even be willing to argue that OR 217 needs to be six laned the whole way, even more so than the East Bank Freeway in Portland. Don't get me wrong that whole mess needs to be rebuilt and modernized with more appropriate geometries, but that area isn't growing; Washington County is.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: nexus73 on July 12, 2011, 01:00:55 PM
Wanderjack, I think 217 should be an 8-lane freeway given it's urban nature.  PDX is so far behind the curve when it comes to freeways.

Rick
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: DeaconG on July 13, 2011, 08:35:59 PM
Quote from: golden eagle on July 11, 2011, 10:00:07 PM
How many lanes are on the stretch of I-95 from Washington to Boston?

IIRC, it's eight lanes from the Capital Beltway to Wilmington, four lanes through the city of Wilmington to the I-495 split, then six lanes to the Blue Route, then eight lanes through Philly to Woodhaven Rd (PA 63), then six lanes to Bristol at PA 413, then back to four lanes.  Beyond that, dunno-never been north of Noo Yawk that way :)

EDIT: Can't remember offhand if the Girard Point Bridge is six or eight lanes-I think it's six, but don't hold me to it-haven't been home in two years.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: Bickendan on July 15, 2011, 02:40:49 PM
Quote from: nexus73 on July 12, 2011, 01:00:55 PM
Wanderjack, I think 217 should be an 8-lane freeway given it's urban nature.  PDX is so far behind the curve when it comes to freeways.

Rick
You have to remember that part of being being the curve is deliberate.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: Interstate Trav on July 27, 2011, 04:41:37 AM
Quote from: agentsteel53 on July 08, 2011, 11:16:12 AM
I-10 and I-5 both drop to two lanes in the East LA Interchange, I believe.

They do, but only as they transition onto another freeway.  does that count as loosing there lanes?
Title: Re: Longest stretch of 6 laning, 8 laning, 10 laning
Post by: NE2 on July 27, 2011, 05:58:28 AM
I-95 has the following minimum lane count north of North Carolina:
*4 to I-85
*6, I-85 to VA 123, except 5 (2 northbound) through I-295 interchange
*8, VA 123 to MD 24, except:
**4 through Springfield Interchange
**6 in Virginia (still under construction)
**5 at north I-495 split (2 southbound)
**6 through I-395 interchange
**6 through unbuilt I-83 interchange
**6 from Moravia Road to I-895
**6 through I-695 interchange
*6, MD 24 to Delaware toll
*8, Delaware toll to I-295
*4 through I-295 interchange
*6, I-295 to downtown Wilmington
*4, downtown Wilmington to I-495
*6, I-495 to I-476
*8, I-476 to PHL, except 6 through PA 420 interchange
*6, PHL to Girard Avenue
*8, Girard Avenue to Betsy Ross Bridge
*6, Betsy Ross Bridge to PA 413
*4, PA 413 to NJ 29
*6, NJ 29 to gap

Restarting along I-295 in Delaware to the NJ Turnpike:
*4, I-95 to US 13
*8, US 13 to I-295/NJTP split
*4, I-295/NJTP split to NJ 73
*6, NJ 73 to split south of NJ 32 (being widened north of PA Turnpike)
*10, split south of NJ 32 to NJ 18
*12, NJ 18 to GSP
*14, GSP to I-278
*12, I-278 to NJ 3 (6 along each spur)
*10, NJ 3 to US 46 (4 along west spur)
*6, US 46 to I-80
*10, I-80 to
*14 over GWB
*8, GWB to I-87
*6, I-87 to Cedar Street Branford, except:
**3 through Bruckner Interchange (1 southbound)
**5 through I-695 interchange (2 northbound)
**8 from I-695 to Pelham Parkway
**4 through I-91 interchange (will it be 6 after construction?)
*4, Cedar Street Branford to RI 4 (widens to 8 over Connecticut River and 10 over Thames River)
*8, RI 4 to I-195
*6, I-195 to MA 9, except 3 (1 northbound) through I-93 interchange
*8, MA 9 to I-93
*6, I-93 to MA 128
*4 through MA 128 interchange
*6, MA 128 to US 1 connection
*8, US 1 connection to MA 133
*6, MA 133 to I-495
*8, I-495 to NH 16
*6, NH 16 to I-295
*4, I-295 to Canada

So, except for temporary drops through interchanges, I-95 is at least 6 lanes from Petersburg to Wilmington, at least 8 from south of DC to north of Baltimore, at least 6 from north of Wilmington to New Haven (once the PA Turnpike connection is complete), and at least 6 from south of Providence to Portland. I-495 around Wilmington is six lanes except at the north end, so the only significant gap in 6 lanes from Petersburg to Portland is through Connecticut and Rhode Island. And that part can be bypassed by using I-91, I-84, and I-90, which is practically all 6+ lanes.

In short, when the I-95 gap is filled, there will be a six-lane corridor from Petersburg, VA to Portland, ME, excepting short logical lane drops through interchanges. This is longer than the I-75 six-laning between Florida's Turnpike and Chattanooga (which also has at least one such drop, at Macon).
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: vdeane on July 27, 2011, 12:26:46 PM
There's some illogical lane drops through interchanges too.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: aridawn on August 13, 2011, 05:08:05 PM
Well ON-401 currently will be 6 lanes from just west of London, to Cobourg, ON by summers end as they finish up a section of 6 laning just west of Kitcher/Waterloo. There is a section from ON-3 to Tilbury, ON on the western end of the freeway, and a short new stretch in Kingston. Both of these two are still under construction and are apart of along term plan to 6 lane the entire freeway all 827km. As for 8 lanes 401 is 8 lanes from Hurontario Rd to ON-410(currently being upgraged to express/collector system), and Brock Rd to Salem Rd,(4 miles a piece) and two sections of 12-16 lanes across the top of Toronto on Four carriageways of three to four lanes a carriageway. No planes to marry the two sections of express/collector systems together as yet.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: UptownRoadGeek on August 15, 2011, 05:58:16 PM
What about Houston's Katy and Southwest Freeways?
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: jdb1234 on August 15, 2011, 06:05:11 PM
In Alabama, I-65 is 6 lanes from Exit 242 in Pelham to just south of Exit 291 for a distance of about 50 miles.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: newyorker478 on September 24, 2011, 05:20:30 PM
95 is at least six lanes from Wilmington DE up to New Haven [i belive![

also the long island expressway, I-495, is sixlaned its entire 73 mile length from the midtown tunnel to riverhead.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: NE2 on September 24, 2011, 05:28:35 PM
Quote from: newyorker478 on September 24, 2011, 05:20:30 PM
95 is at least six lanes from Wilmington DE up to New Haven [i belive![
This has been mentioned in more detail earlier in the thread...
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: txstateends on September 24, 2011, 09:36:43 PM
Quote from: UptownRoadGeek on August 15, 2011, 05:58:16 PM
What about Houston's Katy and Southwest Freeways?

According to Erik's pix:  http://www.houstonfreeways.com/i10_photo_report_westbound.html

Most of I-10 (Katy Frwy.) from I-610 to TX 6 is 10 lanes, not counting the 4 HOT lanes or the service roads.  There are some 8 or 12-lane portions, but those are at exits.  One service road Erik found west of TX 6 is 4 lanes wide for the WB one (I'm guessing the same EB); he doesn't show any close up east of TX 6 and west of I-610, but I'm guessing at least 3 lanes average on those.  He doesn't have any more pix west of TX 6 so I don't know the widths to the west, nor how far the newly-redone part goes (to see how many lanes there are).
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: roadman65 on October 27, 2011, 07:49:25 PM
When the widening project on the NJ Garden State Parkway is completed soon, it will be over 100 miles of 3 or more lanes.   The first phase will be from Exit 63 to Exit 163 if it has not been widened more in the Paramus area in the past twenty years. True, it does not compare to I-95, but for New Jersey that will be the longest stretch.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: SSOWorld on October 28, 2011, 01:41:13 PM
Quote from: pianocello on July 07, 2011, 11:45:17 AM
What about 10 lanes? The longest stretch I know of is the Borman in NW Indiana... I think it's 10 lanes all the way from I-94/IL-394 to I-65

Even if it's not, the Borman would be part of the longest 8-lane stretch I know of, going from the Indiana E-W Toll Road (or I-65, I don't remember which) into Illinois and along the Tri-State Tollway to IL-173 at a distance of about 90 miles. The 6-laning goes another 60 miles east to Benton Harbor, Michigan and I would assume as far as Milwaukee, meaning 200+ miles of 6 lanes
When done, there will be 8 lanes all the way to the Milwaukee Airport (considering about 2 miles in IL between US 41 and the Waukegan Toll is STILL 6 lanes - not sure but I think they extended it further north but not all the way)
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: cpzilliacus on October 29, 2011, 12:19:27 PM
Quote from: DeaconG on July 13, 2011, 08:35:59 PM
Quote from: golden eagle on July 11, 2011, 10:00:07 PM
How many lanes are on the stretch of I-95 from Washington to Boston?

IIRC, it's eight lanes from the Capital Beltway to Wilmington, four lanes through the city of Wilmington to the I-495 split, then six lanes to the Blue Route, then eight lanes through Philly to Woodhaven Rd (PA 63), then six lanes to Bristol at PA 413, then back to four lanes.

There is at least one (short) section of I-95 in Baltimore City, north of the Fort McHenry Tunnel toll plaza that is six lanes. 

And there's a longer section of I-95 (JFK Highway) in Maryland in Harford and Cecil Counties that is six lanes, from Exit 77 (Md. 24, Edgewood) to the Delaware line. In Delaware, it's six lanes between the Maryland line and the Delaware Turnpike toll plaza, and then 8 lanes (or more) from there to the I-95/I-295/I-495 interchange.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: NE2 on October 29, 2011, 12:27:04 PM
Quote from: cpzilliacus on October 29, 2011, 12:19:27 PM
There is at least one (short) section of I-95 in Baltimore City, north of the Fort McHenry Tunnel toll plaza that is six lanes. 

And there's a longer section of I-95 (JFK Highway) in Maryland in Harford and Cecil Counties that is six lanes, from Exit 77 (Md. 24, Edgewood) to the Delaware line. In Delaware, it's six lanes between the Maryland line and the Delaware Turnpike toll plaza, and then 8 lanes (or more) from there to the I-95/I-295/I-495 interchange.
Yes, we've been over this: https://www.aaroads.com/forum/index.php?topic=4898.msg109519#msg109519
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: r-dub on October 29, 2011, 10:19:09 PM
In Colorado, I-25 is a minimum of 6 lanes from MM 180 to around MM 243. 64 miles total.

It's 8 lanes from the north end of Castle Rock to C-470 (10 miles) minus one <1 mile 6 lane stretch at the new RidgeGate exit.
It's 10 lanes wide from C-470(MM 194) to I-225(MM 200), then back down to 8 until Lincoln Ave(MM 207), then 6 through the Santa Fe/US 85 interchange, which is under construction to remove the bottleneck.
After Santa Fe, it's 8 lanes through downtown Denver, then drops back to six at the US 36 turnoff (MM 217). It stays 6 until after the far northern reaches of Denver.

I-70 is six lanes from Colfax Avenue on the east (MM 288) all the way into the mountains until the base of Floyd Hill and the US 6 interchange (MM 246 westbound, MM 248 eastbound). WB 70 loses the third lane early due to terrain issues on its long downhill. 40 miles total. The worst part of this is that in the Mousetrap interchange with 25, 70 could be six lanes since the roadway is wide enough, but it's only striped as 4.

Any other 6+ laning in Colorado is few and far between.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: roadman65 on October 30, 2011, 11:19:16 AM
I forgot about the Driscoll Bridge in New Jersey on the Garden State Parkway now being the widest highway bridge in the world.  It has, from what I read, 14 or 15 lanes across.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: 2Co5_14 on October 31, 2011, 10:27:37 PM
I-80 is at least 6 lanes between San Francisco and Applegate, CA, a distance of 127 miles (56 of those miles are 8 lanes or more).  There are 2 lane transition ramps in West Sacramento, but if you include the lanes of Business 80 (which follows the original routing of I-80), it works.  Otherwise, it's only 81 miles.

The longest 3-di with 6 continuous lanes I can think of is I-495 between Raynham and Amesbury, MA, a distance of 100 miles.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: OCGuy81 on November 01, 2011, 10:37:53 PM
What about I-405 in California? I make it a point not to drive it in LA County unless heading to LAX, but it doesn't seem to drop too much in lane count for the entire route.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: Daniel Fiddler on December 06, 2011, 04:08:24 AM
I-75 from the Florida Turnpike to Exit 11 (Ooltewah) in Tennessee is 6+ lanes save for the section near Macon where I-475 is 6-laned instead, and once Florida's current project is completed, it will be 6+ lanes down to at least Venice if not Naples.

I-65 is either already widened or is in the process of being widened to at least 6 lanes from the Tennessee state line to the Indiana state line (across the Ohio River bridge in Louisville).

I-95 is 6+ lanes from downtown Miami to Fort Pierce, and from Daytona Beach to Savannah.

I-4 is 6+ lanes from Tampa to Sanford.

I-285 is 8+ lanes for it's entire 61 mile length around Atlanta.

Not as impressive as the others, but I-40 is 6+ lanes from I-75 south (toward Chattanooga) to I-81.

For some reason, I'm thinking I-85 from Anderson, SC to Concord / Kannapolis, NC and from High Point to Durham are both 6+ lanes, but I could be mistaken about them, it's been a while since I've been on those stretches of road.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: NE2 on December 06, 2011, 02:22:29 PM
I don't know if I've posted this link, but it should help: http://www.itoworld.com/product/data/ito_map/main?view=128&lat=34&lon=-90&zoom=6
Red=2, green=4, blue=6, purple/yellow=more
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: vtk on December 06, 2011, 02:47:36 PM
Quote from: NE2 on December 06, 2011, 02:22:29 PM
I don't know if I've posted this link, but it should help: http://www.itoworld.com/product/data/ito_map/main?view=128&lat=34&lon=-90&zoom=6
Red=2, green=4, blue=6, purple/yellow=more

I think you have.  The problem is an 8 lane freeway looks just like a 4 lane undivided road.  (Wouldn't be a problem if the lanes=* tag in OSM referred to minimum thru lanes each direction, rather than total both directions...)
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: NE2 on December 06, 2011, 03:09:08 PM
Quote from: vtk on December 06, 2011, 02:47:36 PM
The problem is an 8 lane freeway looks just like a 4 lane undivided road.
No it doesn't. That rendering processes oneway tags.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: BlueNacho on December 06, 2011, 06:16:57 PM
http://g.co/maps/yaq8e

After ISHTA (I think I got the abreviation right) widens I-90 to six lane from Elgin to Rockford, it should be six lanes for I-94/I-80 near Gary, IN to County Highway 9 near Beloit, WI. for a total of 126 miles. Correct me if I'm wrong or missed a 4-lane segment.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: Bigmikelakers on December 15, 2011, 03:40:45 AM
Quote from: OCGuy81 on November 01, 2011, 10:37:53 PM
What about I-405 in California? I make it a point not to drive it in LA County unless heading to LAX, but it doesn't seem to drop too much in lane count for the entire route.

The 405's length is about 72 miles. I know theres some confusion with I-10 due to the East LA Interchange but isn't the 405 the longest 10 lane highway? At minimum it has to be by far has to be the longest non mainline Interstate with at least 6 or even 8 lanes for that matter.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: DeaconG on December 15, 2011, 07:58:11 PM
The six laning on I-95 between SR 528 in Cocoa and CR 514 in Palm Bay is complete (and may I say it is an immense relief).  The six laning between SR 528 and SR 406 in Titusville is in work through mid-2013.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: UptownRoadGeek on December 17, 2011, 02:50:16 AM
Quote from: Bigmikelakers on December 15, 2011, 03:40:45 AM
Quote from: OCGuy81 on November 01, 2011, 10:37:53 PM
What about I-405 in California? I make it a point not to drive it in LA County unless heading to LAX, but it doesn't seem to drop too much in lane count for the entire route.

The 405's length is about 72 miles. I know theres some confusion with I-10 due to the East LA Interchange but isn't the 405 the longest 10 lane highway? At minimum it has to be by far has to be the longest non mainline Interstate with at least 6 or even 8 lanes for that matter.

Not exactly an interstate, but once construction is complete Beltway 8 in Houston will be almost 88 miles of 6 lanes. I-285 in Atlanta would come in 3rd.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: brownpelican on December 21, 2011, 12:01:39 PM
I-10 is at least six lanes from Slidell (I-12/I-59) to I-310...47 miles.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: broadhurst04 on December 21, 2011, 09:22:53 PM
Quote from: ShawnP on July 06, 2011, 10:12:15 PM
I like Georgia's six lanning of I-75 and I-95. South Carolina and North Carolina are a joke with their treatment of I-95.

I-95 in NC hasn't been touched since it was built because it doesn't pass through any of the state's 5 largest cities. Same with SC.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: mightyace on December 22, 2011, 02:29:25 PM
^^^

I guess if PA was like NC, then I-80 wouldn't get much done on it.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: agentsteel53 on January 25, 2012, 06:25:55 PM
Quote from: OCGuy81 on November 01, 2011, 10:37:53 PM
What about I-405 in California? I make it a point not to drive it in LA County unless heading to LAX, but it doesn't seem to drop too much in lane count for the entire route.

I think we might have a winner.  I-5 from San Ysidro, then the entire I-405 (as there are three lanes, at least, for both the south and north junctions, for the transitions in each direction), then I-5 again to the US-99 split.  228 miles of six-lane freeway.

it would be even longer, if not for the fact that the 99 SB to 5 SB transition drops to two contiguous lanes.  If we count the truck lanes (two lanes) and the car lanes (two more) as valid, despite being non-contiguous, then I believe CA-99 is six lanes all the way to somewhere past Bakersfield, which is a whopping 253 miles or more!
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: NE2 on January 25, 2012, 07:58:13 PM
Quote from: agentsteel53 on January 25, 2012, 06:25:55 PM
I believe CA-99 is six lanes all the way to somewhere past Bakersfield, which is a whopping 253 miles or more!
It drops to 4 at Delano.

Switching to US 101 doesn't get you as far - only Carpinteria.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: kendancy66 on February 26, 2012, 12:04:12 AM
Quote from: DTComposer on July 07, 2011, 11:10:05 AM
I-5 is at least 6 lanes from the Mexico Border through the CA-99 split, which is about 210 miles.

And (I'm pretty sure) the only sections that are only 6 lanes is between CA-91 and I-605, so once that upgrade is (finally) complete it would be at least 8 lanes for that entire length.

It could be argued that the spaghetti that forms the East LA interchange constitutes 6 or more lanes going north and south but:

There is a short section (up to a mile or so) that I-5 only 2 lanes going North from where Golden State freeway starts at I-10 West split to where ramp from CA-60 West to I-5 North merges and forms a third lane there, At Seventh St exit, it again narrows to 2 north bound lanes, for a short distance until I-10 East merges in from the left.

Conversely, traveling on I-5 South there is only 2 lanes after CA-60 East departs on the left until a ramp from 60 East merges in from the left forming 4 southbound lanes just before US-101 South forms 2 more lanes
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: longhorn on March 06, 2012, 01:56:59 PM
Quote from: MeanMeosh on July 11, 2011, 06:33:08 PM
Some others:

IH-10 has 6+ from the CA-86S expressway in Indio all the way to its terminus, and 8+ from Yucaipa to the 405, though it may narrow to 2 through lanes temporarily at one of the downtown L.A. interchanges.  IH-15 is also 6+ from its terminus to IH-40 in Barstow, a whopping 185 miles.

IH-45 will soon have 8+ continuously from League Line Road in Conroe to at least NASA Road 1 (66 miles - though not sure where the 8-laning ends now, exactly), and 6+ from the Walker/Montgomery County Line to its terminus in Galveston (approx. 102 miles), once construction is complete from Conroe northward.  If you count IH-45 and US-75 as a single highway, it has 6+ continuously from the north end of the Corsicana bypass to TX-121 south of McKinney, for a total of 79 miles. 

IH-35 is also 6+ continuously from Exit 280 in Bell County to IH-410 south of San Antonio, or 135 miles, if you count the "express" and "local" lanes in Austin as 4 combined lanes in each direction.  Expansion is currently in progress to Belton, so counting the 6-lane segment south of Temple, you'll have a total of 151 miles of 6-laned freeway for your driving pleasure.  Or not, considering how awful traffic is on 35 through Austin.

Eventually I-35  will be three lanes per side from Hillsboro (though the masterplan has I-35E from Dallas three lanes)to San Antonio.

And when completed it will be I-10 from Houston to Lake Charles Louisiana.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: kkt on March 06, 2012, 05:10:48 PM
Quote from: Landshark on July 09, 2011, 09:30:25 PM
Quote from: KEK Inc. on July 07, 2011, 02:51:49 PM
I-5 is 6 lanes from Vancouver, WA, to Exit 55.  Eventually, it will be 6 lanes from Portland to Seattle.

It is 6 lanes from exit 88 to exit 224 (136 miles)  on I-5 in Western Washington.  Currently WSDOT is widening I-5 between Chehalis and Grand Mound (exit 88).  Eventually I-5 will be at least 6 lanes through the entire state.

Glad to hear they plan to make the whole stretch from Chehalis to Grand Mound six lanes.  It takes almost nothing for traffic to get backed up to stop and go through that stretch there now.  (Rain, summer weekend, 3-day weekend, spring break, Christmas break, ...)

Do they have actual plans to widen I-5 north of exit 224 (Mt. Vernon)?  I'd like to see it six lanes at least until it heads into the mountains north of Burlington.  North of there, I'm not sure it's needed.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: longhorn on April 20, 2016, 03:04:31 PM
Resurrecting this interesting thread.

In NC, the I-40/I-85 from Greensboro to Durham is 8 lanes.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: jeffandnicole on April 20, 2016, 03:31:14 PM
Since the thread has been brought back to life, and while it was referenced 4 years ago or so, the widening wasn't completed.  So...

It's a minimum of 12 lanes on the NJ Turnpike for about 57 miles, from south of Interchange 6 to around Interchange 14.  Include the east & west spurs north of Interchange 14, and it's at least 12 lanes wide for nearly 70 miles. 

It's a minimum of 10 lanes from just before Exit 6 on the NJ Turnpike to just beyond the GWB, about 75 miles in length.  A small stretch of 95 between I-80 & the bridge is why it's not at least 12 lanes for all 75 miles.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: PHLBOS on April 20, 2016, 06:10:02 PM
Since this thread's been bumped, some updates/corrections to NE2's I-95 listings

Quote from: NE2 on July 27, 2011, 05:58:28 AM
I-95 has the following minimum lane count north of North Carolina:
...
*6, I-495 to I-476
except 4 through I-476 interchange

Quote from: NE2 on July 27, 2011, 05:58:28 AM
*6, PHL to Girard Avenue
It's 8 lanes between I-76 (Walt Whitman Bridge) and Columbus Blvd. (Penns Landing)

Quote from: NE2 on July 27, 2011, 05:58:28 AM
Restarting along I-295 in Delaware to the NJ Turnpike:
...
*6, NJ 73 to split south of NJ 32 (being widened north of PA Turnpike) about 1-1/2 miles south of the PA Turnpike split
*12, NJ 18 approx. 1-1/2 miles south of the PA Turnpike split to GSP
Above updated to reflect completion of the NJ Turnpike widening.

Quote from: NE2 on July 27, 2011, 05:58:28 AM
...
*6, I-195 to MA 9, except 3 (1 northbound) through I-93 interchange
At present, the current I-95 widening (to 8 lanes) project is completed from I-93/Canton to Great Plain Ave.  When fully completed, I-95 will be 8 lanes between both I-93 interchanges (Canton & Woburn/Reading); though it briefly drops to 6 lanes (restriped only, no reduction in pavement) through the I-90/Mass Pike interchange.

Quote from: NE2 on July 27, 2011, 05:58:28 AM
...
*8, US 1 connection to MA 133 113
*6, MA 133 113 to I-495
This is one case where an honest typo can make a difference.  :sombrero:

The new Whittier Bridge, when completed, will make I-95 8 lanes from US 1/Exit 46 to MA 110.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: freebrickproductions on April 21, 2016, 10:11:39 AM
I-565 is 10 lanes between Jordan Lane and Bob Wallace Avenue here in Huntsville, AL. It ain't a very long stretch though.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: bzakharin on April 21, 2016, 10:42:52 AM
Since I spend most of my time in NJ, I have always thought that 6+ lanes was the rule rather than the exception. All of NJ's interstates except I-195 are majority 6+ lanes. Also, the Turnpike, Parkway, the 42 Freeway, and AC Expressway are entirely or majority 6+ lanes. Only most state and US route freeways are less than 6 lanes throughout (NJ 55, NJ 24, NJ 18, etc)
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: jeffandnicole on April 21, 2016, 10:52:49 AM
Quote from: bzakharin on April 21, 2016, 10:42:52 AM
Since I spend most of my time in NJ, I have always thought that 6+ lanes was the rule rather than the exception. All of NJ's interstates except I-195 are majority 6+ lanes. Also, the Turnpike, Parkway, the 42 Freeway, and AC Expressway are entirely or majority 6+ lanes. Only most state and US route freeways are less than 6 lanes throughout (NJ 55, NJ 24, NJ 18, etc)

With the completed widening, ironically the NJ turnpike has less 6 lane mileage (14 miles on the mainline, 5 miles on the PA/NJ Extension, than it does 4 lane mileage (35 miles on the mainline, a little more on the Exit 14 Extension)

I-295 is also 4 lanes from Exit 1 to Exit 13, as well as I-78 east of the NJ Turnpike mainline.

Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: jbnati27 on April 21, 2016, 11:13:43 AM
Quote from: wriddle082 on July 06, 2011, 10:33:42 PM
Kentucky is really progressing well with widening I-65 and I-75 throughout the state.  I think I-75 is now six lanes from London (possibly Corbin) all the way to the Ohio River (and let's not forget OH's progress on 75 north of Dayton).

I-75 narrows to four lanes North of London until you get North of Mt. Vernon. Then, at that point, it's 6 lanes all the way to the Ohio River (unless you discount the I-64/I-75 interchange North of Lexington). That's approximately a 120 mile stretch of at least a six lane highway. Then, in Ohio, it's at least 6 lanes all the way (at least it's supposed to be in downtown Dayton if the construction ever is finished) up North of Dayton to at least around Troy (MM 73/74).  That's about 200 miles of at least 6 lanes.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: bzakharin on April 21, 2016, 11:24:47 AM
Quote from: jeffandnicole on April 21, 2016, 10:52:49 AM
Quote from: bzakharin on April 21, 2016, 10:42:52 AM
Since I spend most of my time in NJ, I have always thought that 6+ lanes was the rule rather than the exception. All of NJ's interstates except I-195 are majority 6+ lanes. Also, the Turnpike, Parkway, the 42 Freeway, and AC Expressway are entirely or majority 6+ lanes. Only most state and US route freeways are less than 6 lanes throughout (NJ 55, NJ 24, NJ 18, etc)

With the completed widening, ironically the NJ turnpike has less 6 lane mileage (14 miles on the mainline, 5 miles on the PA/NJ Extension, than it does 4 lane mileage (35 miles on the mainline, a little more on the Exit 14 Extension)

I-295 is also 4 lanes from Exit 1 to Exit 13, as well as I-78 east of the NJ Turnpike mainline.


That's why I said *majority* 6+ lanes. NJ Turnpike actually has a brief section of 16 lanes where the car/truck lanes transition to Eastern/Western spur.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: cl94 on April 21, 2016, 01:01:18 PM
Since this thread was bumped and I don't know if anyone mentioned it, I-71 in Ohio. 6+ lanes from I-270 south of Columbus to the northern terminus at I-90. ~145 miles excluding stretches through a few interchanges. Eventual plan is to 6 lane the entire thing, totaling ~245 miles with only a couple interruptions.

The Ohio Turnpike from Toledo to Youngstown is 6 lanes for 154 miles. I think the plan is to eventually 6 lane it west of Toledo.

If NYSTA ever gets smart and widens the Thruway between Exits 16 and 23 like is probably needed, I-87 would be 6+ lanes for 200 miles.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: vtk on April 21, 2016, 02:48:21 PM
Quote from: cl94 on April 21, 2016, 01:01:18 PM
Since this thread was bumped and I don't know if anyone mentioned it, I-71 in Ohio. 6+ lanes from I-270 south of Columbus to the northern terminus at I-90. ~145 miles excluding stretches through a few interchanges.

The excluded stretch of one lane each way at the Mound-Sandusky interchange in Columbus is notable.

I-270 is at least six lanes all the way around, except where it's 4 lanes inside the interchages with the South and West Freeways. It maxes out at 12 lanes, unless you count the Morse Rd entrance ramp tapers in the Easton area, then you'd get a max of like 15. Anyway, I-270 may  be only 55 miles, but it's a continuous circuit so you can just keep going forever, so it's almost like an infinite 6-lane highway...

(Pretty sure I mentioned this in the thread's previous life, but 270 still had a non-excludable 4-lane section then...)
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: cl94 on April 21, 2016, 03:16:33 PM
If they ever rebuild Mound-Sandusky, it'll finally be 2 lanes. Granted, it used to be worse (I-71 SB had a loop ramp in the first iteration of that interchange).

As far as 8+ lanes, how much of I-5 is 8+ south of SR 99? That has to be quite a bit.
New York's longest stretch of 8+ is about 40 miles on the LIE and nothing else comes close.

Up in Ontario, the QEW is 6+ for quite a distance as well (everything north/west of Niagara Falls). Certainly doesn't come close to 401, but notable in its own right.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: vtk on April 21, 2016, 03:24:43 PM
Quote from: cl94 on April 21, 2016, 03:16:33 PM
If they ever rebuild Mound-Sandusky, it'll finally be 2 lanes. Granted, it used to be worse (I-71 SB had a loop ramp in the first iteration of that interchange).

How long did that ramp carry I-71 SB mainline? Didn't the mainline originally follow the North and West legs of the Innerbelt?
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: cl94 on April 21, 2016, 03:36:32 PM
Quote from: vtk on April 21, 2016, 03:24:43 PM
Quote from: cl94 on April 21, 2016, 03:16:33 PM
If they ever rebuild Mound-Sandusky, it'll finally be 2 lanes. Granted, it used to be worse (I-71 SB had a loop ramp in the first iteration of that interchange).

How long did that ramp carry I-71 SB mainline? Didn't the mainline originally follow the North and West legs of the Innerbelt?

No clue. Maps aren't clear. I've seen some maps showing that the entire Innerbelt was I-71 at one point. However it was, the original Mound-Sandusky interchange was in place for over 10 years. The original Spring-Sandusky interchange had a RIRO that wasn't taken out until some point after 1971, meaning that area did not meet Interstate standards.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: geoffNOLA on April 25, 2016, 01:36:59 PM
I-10 is at least 6 lanes wide from Winnie (SH 73) to Brookshire (FM 359) with the exception of the I-10/I-45 interchange in Houston
94 miles
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: Bigmikelakers on April 25, 2016, 03:07:45 PM
What about I-210/CA-210? Runs at least 6 lanes from Sylmar to Redlands which is 84 miles. I'm aware of the 134/710 interchange in Pasadena where it goes down to 2 lanes in the transition lanes so that alone probably won't make it count.

I'm pretty sure CA-60 runs at least 6 lanes from Downtown LA to Moreno Valley before it drops to 4 in the Badlands. That's almost 70 miles.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: authenticroadgeek on April 27, 2016, 09:43:10 AM
For 10 lanning, probably Katy Highway :pan: But the longest (and only) one here is in Utah County where the road is 12 lanes, 14 if you count HOV lanes.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: cbeach40 on April 27, 2016, 10:39:24 AM
Quote from: cl94 on April 21, 2016, 03:16:33 PM
Up in Ontario, the QEW is 6+ for quite a distance as well (everything north/west of Niagara Falls). Certainly doesn't come close to 401, but notable in its own right.

QEw is 6 lanes between Mountain Road and Burlington, then a short 4 lane portion through Freeman, then 6 or more again into Toronto.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: vtk on May 07, 2016, 03:13:43 PM
Is "lanning" the accepted spelling now?

I mean, I'm not sure it's even a word, but the fairly reliable wetware neural network for spelling I've built up, in my decades speaking, reading, and writing US English, is confident it should be spelled "laning".
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: hotdogPi on May 07, 2016, 07:50:52 PM
Quote from: vtk on May 07, 2016, 03:13:43 PM
Is "lanning" the accepted spelling now?

I mean, I'm not sure it's even a word, but the fairly reliable wetware neural network for spelling I've built up, in my decades speaking, reading, and writing US English, is confident it should be spelled "laning".

It's like the "'Stangest' traffic lights" thread: everyone's doing it intentionally on this thread, and this thread only.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: Marc on May 08, 2016, 12:07:38 AM
When finished, I-35 will be six lanes from San Antonio to the E/W split in Hillsboro. A distance of roughly 215 miles.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: mgk920 on May 08, 2016, 11:17:09 AM
When WisDOT gets done with their current upgrade project between Madison and the Illinois state line, I-90 will be at least six lanes from the Chicago Skyway to the I-39 northwest split (Cascade interchange) near Portage, WI.

Mike
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: SSOWorld on May 08, 2016, 11:09:46 PM
Quote from: mgk920 on May 08, 2016, 11:17:09 AM
When WisDOT gets done with their current upgrade project between Madison and the Illinois state line, I-90 will be at least six lanes from the Chicago Skyway to the I-39 northwest split (Cascade interchange) near Portage, WI.

Mike
along those lines - I-94 will be 8-lanes+ from the Mitchell Interchange (I-894) all the way to the Edens spur. All of the Tri-State Tollway is 4 lanes+.  Note that ISHTA finished the brief 6-lane portion near the US-41 split once WISDoT put in their portion.
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: cbeach40 on May 09, 2016, 10:52:49 AM
Quote from: vtk on May 07, 2016, 03:13:43 PM
Is "lanning" the accepted spelling now?

I mean, I'm not sure it's even a word, but the fairly reliable wetware neural network for spelling I've built up, in my decades speaking, reading, and writing US English, is confident it should be spelled "laning".

Outside of this thread I've only seen it as laning. "Lanning" seems like giving the highway an impressive mustache.

(https://postmediaprovince.files.wordpress.com/2011/08/lanny-mcdonald.jpg)
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: CtrlAltDel on May 09, 2016, 03:39:30 PM
Quote from: vtk on May 07, 2016, 03:13:43 PM
Is "lanning" the accepted spelling now?

I mean, I'm not sure it's even a word, but the fairly reliable wetware neural network for spelling I've built up, in my decades speaking, reading, and writing US English, is confident it should be spelled "laning".

But you're only negative nineteen years old. I don't know how much you can learn in negative two decades.  :spin:
Title: Re: Longest stretch of 6 lanning, 8 lanning, 10 lanning
Post by: ftballfan on May 17, 2016, 05:06:42 PM
I-75 in Michigan is at least six lanes from the Ohio border to the US-10 split at Bay City (excepting a very small 4-lane portion between US-23 and I-475 south of Flint)