How far out from any city does its primary interstate gain lanes? Sorry if its worded weird, for example: I-70 in the St. Louis area gains two extra lanes in Wentzville on its way into STL. 44 gains lanes in Pacific, or have they moved that further west? IIRC 55 gained extra lanes near Barnhart.
If you want to stretch it slightly, the NJ Turnpike (much of which is I-95) gains a lane about 88 miles from the NYC border, and has the major dual-dual lane gain (if you want to call it that) about 74 miles from NYC.
I-10 goes from 4 to 8 lanes near Indio CA which is around 120 miles east of Los Angeles.
Locally,
I-66 goes from 4 to 8 lanes in Haymarket VA -35 miles west of DC.
I-270 goes from 4 to 6 near Clarksburg MD -17 miles northwest of the Beltway.
Finally the express lanes start on I-95 currently in Garrisonville VA - 36 miles south of D.C but an extension is in the works that will extend them south another 10 miles near Fredricksburg.
If you want to get a bit technical, I-75 is at least six-laned southbound for 180 miles from Chattanooga TN. This is, of course, due to Atlanta.
I-91 at CT 20 does this.
https://www.google.com/maps/@41.9025792,-72.63625,163m/data=!3m1!1e3 (https://www.google.com/maps/@41.9025792,-72.63625,163m/data=!3m1!1e3)
I-5 gains a fourth lane near Olympia, WA, about 60 miles south of Seattle. It loses this fourth lane in Everett, about 30 miles north.
If you consider two lanes to be the starting point, I-5 gains a third lane in Chehalis, 93 miles south of Seattle. It loses this third lane near Mount Vernon, 58 miles north of Seattle.
I-5 does drop to two lanes through downtown Seattle, but I'm going to ignore this fact because I don't think its strictly relevant.
I-93 goes from 6 to 8 lanes in Wilmington MA, 19 miles north of Boston.
I-90 goes from 4 to 6 lanes in Sturbridge MA, 57 miles west of Boston.
MA 3 (which joins with I-93 and US 1 closer to Boston) goes from 4 to 6 lanes in Weymouth, 16 miles south of Boston. It then jumps to 8 where it joins with 93 in Quincy.
I-95 goes from three to four lanes in each direction at the Maryland Route 24 interchange between Abingdon and Edgewood, about 22 miles northeast of downtown Baltimore. That's not too impressive, but I really wanted to mention that since that's my home stretch of Interstate.
Quote from: epzik8 on November 11, 2016, 08:57:36 AM
I-95 goes from three to four lanes in each direction at the Maryland Route 24 interchange between Abingdon and Edgewood, about 22 miles northeast of downtown Baltimore. That's not too impressive, but I really wanted to mention that since that's my home stretch of Interstate.
Except for short sections through interchanges in College Park and Baltimore City north of the Fort McHenry Tunnel, it is at least eight lanes all the way south to the Woodrow Wilson Bridge where I-95 continues into Virginia.
I-94 gains a 3rd lane 29 miles from the Twin Cities area, at exit 3 in hudson.
Quote from: cpzilliacus on November 11, 2016, 02:11:08 PM
Quote from: epzik8 on November 11, 2016, 08:57:36 AM
I-95 goes from three to four lanes in each direction at the Maryland Route 24 interchange between Abingdon and Edgewood, about 22 miles northeast of downtown Baltimore. That's not too impressive, but I really wanted to mention that since that's my home stretch of Interstate.
Except for short sections through interchanges in College Park and Baltimore City north of the Fort McHenry Tunnel, it is at least eight lanes all the way south to the Woodrow Wilson Bridge where I-95 continues into Virginia.
And at least 6 lanes up to Wilmington, DE!
In OR, NB I-5 gains its 3rd lane at the Kuebler Blvd. exit (#252) just southeast of Salem, and maintains its overall 6-lane alignment (give or take slip lanes and the truck lanes at the 99W merge near Tigard) north to the south I-405 split at the west end of the Marquam Bridge in downtown Portland, a distance of 48 miles. There is construction south of Kuebler Blvd. to widen I-5 further south.
I-75 goes to multiple lanes 100 miles north and south of Detroit. Of course, there's other cities between those points, like Bay City, Saginaw, Flint and Toledo.
Quote from: GaryV on November 11, 2016, 08:57:36 PM
I-75 goes to multiple lanes 100 miles north and south of Detroit. Of course, there's other cities between those points, like Bay City, Saginaw, Flint and Toledo.
I-75 is 6 plus lanes from Chattanooga south to the FL Turnpike( except thru Macon but 475 is the main thru route and that is 6 lanes... And is being widened to Tampa.. Over 500 miles
95 is 6 + lanes from I-4 to South Carolina. The 6+ lanes will soon be complete in all of FL.. Again over 500 miles
All of I-4 is 6+ lanes now.. Its only 132 miles but the entire route is 6+ lanes
LGMS428
I-80 in California gains/loses its third lane in Applegate, about 128 miles east of San Francisco.
On the other extreme, I-5 gains/loses its third lane at Elk Grove Boulevard, about 13 miles south of downtown Sacramento, and loses/gains it at CA-99, about 7 miles north of downtown.
I-80 is at least 6 lanes approximately 70 miles west of NYC (I know, I-80 doesn't technically go to New York).
Quote from: jwolfer on November 12, 2016, 01:26:15 AM
Quote from: GaryV on November 11, 2016, 08:57:36 PM
I-75 goes to multiple lanes 100 miles north and south of Detroit. Of course, there's other cities between those points, like Bay City, Saginaw, Flint and Toledo.
I-75 is 6 plus lanes from Chattanooga south to the FL Turnpike( except thru Macon but 475 is the main thru route and that is 6 lanes... And is being widened to Tampa.. Over 500 miles
LGMS428
When the 6-laning is completed, I-75 will be 6-laned all the way to Exit 101 in Naples, with the exception of through Punta Gorda.
I-90 widens to six lanes at the IL/WI border north of Rockford, and generally remains at least this width all the way through Illinois (with just the exception of a couple interchanges). I think that's a length of a little under 100 miles. It will be eight lanes from Elgin to O'Hare (40 miles from the Chicago Loop, and 20-25 miles from O'Hare) by the end of the year, although it, of course, will drop back to six East of I-294 until its junction with I-94 (and that stretch will now become even more of a nightmare).
I-94 widens from six to eight lanes North of Kenosha towards Chicago (about 65 miles from Chicago, yet only 35-40 miles from Milwaukee). The combination of I-94/I-294 (Tri-State Tollway once you enter Illinois) from this point to Gary, IN remains at generally eight lanes for about 100-110 miles through the Chicagoland Area. With that, the central section of I-294 desperately needs at least one or two more lanes each way (particularly right by the mess near O'Hare (here's hoping that the tollway ultimately plans an additional lane upon reconstruction of that segment in a few years).
Do you count when the highway temporarily loses said lanes through interchanges? For example, I-96 picks up extra lanes from west of Howell all the way into Detroit, but drops back to two lanes each direction through the interchanges at US-23, I-275/I-696/M-5, and I-275/M-14.
- I-70 goes from 4 to 6 in Springfield, OH, 37 miles west of I-270. It'll eventually be a continuous 6 lanes from west of Dayton to east of Columbus
- I-87 goes from 4 to 6 in Lake George at Exit 22, 55 miles north of I-90 in Albany. This 55-mile stretch is the longest continuous 6-lane freeway in New York other than the LIE.
- I-71 in Ohio is a continuous 6 lanes from I-670 in Columbus to I-480 in Cleveland, about 120 miles. Exclude the stretches through interchanges and it's 6 lanes from south of Columbus to I-90
Quote from: jeffandnicole on November 11, 2016, 03:18:11 PM
And at least 6 lanes up to Wilmington, DE!
The four lane section of I-95 through Wilmington is not that much of an issue, given that a better parallel route exists in I-495.
Quote from: cpzilliacus on November 12, 2016, 08:01:13 PM
Quote from: jeffandnicole on November 11, 2016, 03:18:11 PM
And at least 6 lanes up to Wilmington, DE!
The four lane section of I-95 through Wilmington is not that much of an issue, given that a better parallel route exists in I-495.
Sort of like 4 lane section of I-75 through Macon, GA. 475 maintains 6 lanes
LGMS428
I believe I-29 picks up the 3rd lane after the 435 interchange just South of Platte City and that 3rd lane will go till about Exit 1B (just before the merge with I-35). After the merge with I-35, it's three lanes all the way to its terminus in Downtown KC.
I-435 is at least 3 lanes in all of KS (The stretch from K-10 all the way to the MO state line will be four lanes once the JoCo Gateway project is completed). On the MO side, I'm pretty sure it's 4 lanes from the KS state line all the way to the Grandview Triangle and 3 lanes from the Triangle up to Exit 47 (except for the small stretch at the MO-210 and I-35 interchanges). It's then 2 lanes from there till the multiplex with I-29 (It's 3 lanes along this stretch). After the mutiplex, it's two lanes till Exit 22 (MO-45), where it'll become three lanes again till the KS state line.
I'm surprised that no one has mentioned the Houston area yet.
I-10: 3+ lanes to Exit 862 in Vidor, which is 94 miles east of Houston; and 3+ lanes from Exit 732, which is 36 miles west of Houston.
I-45: 3+ lanes from its southern terminus to Willis, both sections roughly 50 miles from Downtown Houston.
US 59 North may have the record for non-interstate freeway (though I guess it's mostly considered I-69 by now): roughly 36 miles to Splendora.
Also, in Florida, I-95 is 6 lanes for almost all of its 382 miles through the state, with the last bit near Daytona, I believe, already started.
Quote from: coatimundi on November 13, 2016, 08:28:55 PM
I'm surprised that no one has mentioned the Houston area yet.
I-10: 3+ lanes to Exit 862 in Vidor, which is 94 miles east of Houston; and 3+ lanes from Exit 732, which is 36 miles west of Houston.
I-45: 3+ lanes from its southern terminus to Willis, both sections roughly 50 miles from Downtown Houston.
US 59 North may have the record for non-interstate freeway (though I guess it's mostly considered I-69 by now): roughly 36 miles to Splendora.
Also, in Florida, I-95 is 6 lanes for almost all of its 382 miles through the state, with the last bit near Daytona, I believe, already started.
And then add 112 miles in Georgia.. 494 miles of 6 lanes+
LGMS428
Quote from: jwolfer on November 13, 2016, 11:49:05 PM
Quote from: coatimundi on November 13, 2016, 08:28:55 PM
Also, in Florida, I-95 is 6 lanes for almost all of its 382 miles through the state, with the last bit near Daytona, I believe, already started.
And then add 112 miles in Georgia.. 494 miles of 6 lanes+
The only longer four lane sections of I-95 are across most of the Carolinas (excluding Florence, S.C.); in eastern Connecticut; southwest Rhode Island and in Maine north of Portland.
Quote from: jwolfer on November 13, 2016, 09:17:12 AM
Sort of like 4 lane section of I-75 through Macon, GA. 475 maintains 6 lanes
I-475 is only two lanes in each direction (four total) at its north end between the US 41 interchange and I-75.
I-75 is also 6 lanes or more from around mile marker 74 in Ohio (21 miles north of Dayton, OH) until mile marker 69 in Kentucky (or about 30 miles south of Lexington, KY)...a distance of roughly 196 miles! It then becomes 2 lanes for about 14 miles, picking the six lane configuration back up again at mile marker 55, 6 miles north of exit 49, which is the KY 909 exit near Livingston, then going back to 2 lanes just south of exit 49.
But wait...I-75 is six laned AGAIN, 3/4 of a mile north of the London/Somerset/KY 80 interchange at Exit 41, then remaining 3 lanes southbound for another 7 miles to mile marker 34, at which point I-75 becomes 2 lanes each way for the remainder of its run in the state. That means that I-75 is only 2 lanes for about 55 miles in Kentucky.
Meanwhile, I-71 gets more time as a 4 lane in Kentucky. Once it splits from I-75, except for a couple miles near Sparta, it's 4 lanes the entire way from I-75 to the south terminus in Louisville. So, if we take out 2 miles for Sparta, that is 75 miles of 2 lane.
From the north coming south, meanwhile, I-71 is six lanes or more starting 28 miles northeast of downtown Cincinnati.
I-74 is the only 2DI route into Cincinnati from the west. Maddeningly enough, it is 2 lanes almost the entire way from the Indiana state line, only becoming 6 lanes in 2 locations:
1) Its concurrency with I-275, about 4 miles and
2) the final half mile of the interstate, splitting into ramps to north and south 75.
Around Indianapolis:
I-70 goes to six lanes 15 miles west of the city at Exit 66 in Plainfield. To the east, it becomes six lanes at Exit 96, 15 miles to the east.
I-65 very soon will begin its six-lane segment to the south at Exit 90 in Franklin, 20 miles south of downtown. However, it becomes six lanes only ten miles north of downtown at Exit 123. There is a six-lane segment from Exits 130 to 141 further north, but not connected to the other six-lane section of I-65
I-69 is four lanes wide from Exit 200 to 205 and will (after construction) be six lanes from there to Exit 218.
US 31 becomes a six-lane freeway around Exit 132 (SR 32) and remains that way south to the interchange with I-465 at Exit 123.
Quote from: cpzilliacus on November 14, 2016, 02:19:51 AM
Quote from: jwolfer on November 13, 2016, 11:49:05 PM
Quote from: coatimundi on November 13, 2016, 08:28:55 PM
Also, in Florida, I-95 is 6 lanes for almost all of its 382 miles through the state, with the last bit near Daytona, I believe, already started.
And then add 112 miles in Georgia.. 494 miles of 6 lanes+
The only longer four lane sections of I-95 are across most of the Carolinas (excluding Florence, S.C.); in eastern Connecticut; southwest Rhode Island and in Maine north of Portland.
Last time i drove to atlanta 475 was under construction i thought the whole thing eas gonna be 6 lanes... Wrong assumption i guess
Quote from: lordsutch on November 14, 2016, 03:19:34 AM
Quote from: jwolfer on November 13, 2016, 09:17:12 AM
Sort of like 4 lane section of I-75 through Macon, GA. 475 maintains 6 lanes
I-475 is only two lanes in each direction (four total) at its north end between the US 41 interchange and I-75.
LGMS428
Once the ongoing construction projects are completed, I-35 will have a minimum of 6 lanes starting at the I-35E/I-35W split in Hillsboro, TX, approximately 215 miles north of downtown San Antonio.
I-90 goes to 6 lanes a mile outside of the Buffalo area toll barriers. It should be at least 5 miles outside and a new exit needs to be added in the Clarence area. As a contrast, the Northway is a 6 lane stretch if I-87 north of Albany to Glen Falls that goes to the boonies.
I-90 also goes to 8 through lanes from NY-400 to I-190 in West Seneca. Traffic moves very efficiently in this stretch and I think this is how wide I-90 and I-290 should be within the toll barriers.
ON 401 in Ontario is a pretty long stretch that hasn't been mentioned. 287 km (178 miles) of 6+ lanes. ON 402 west of London to CR 18 in Cobourg. A decent amount of that is 10+ lanes and a good amount of what is 6 lanes should be at least 8.
Quote from: CapeCodder on November 10, 2016, 07:43:30 PM
How far out from any city does its primary interstate gain lanes? Sorry if its worded weird, for example: I-70 in the St. Louis area gains two extra lanes in Wentzville on its way into STL. 44 gains lanes in Pacific, or have they moved that further west? IIRC 55 gained extra lanes near Barnhart.
On I-55 it's closer to Pevely now: Google Aerial (https://www.google.com/maps/@38.3029532,-90.4039293,210m/data=!3m1!1e3?hl=en). Before MoDOT ran into funding problems the plan was to have the extra lanes start at Herculaneum, although it could use to be six lanes down to US 67.
I-44 currently has the six lanes start at the western MO 100 interchange: Google Aerial. (https://www.google.com/maps/@38.4784131,-90.8475988,209m/data=!3m1!1e3?hl=en) IIRC the plan many years ago was to eventually widen to six lanes out to the US 50 interchange, although I-44 could use to be six lanes across most of Missouri.
For I-64 on the Illinois side eastbound goes back to two lanes at the O'Fallon Exit, while WB widens out at the Green Mount Road interchange.
The 6+ lane section of I-90 west of Chicagoland starts at the Wisconsin border for the moment.
Side discussion: Is it just me, or does Illinois have an annoying habit of ending a main lane too close to interchanges. Examples to consider:
* I-64 EB in O'Fallon: The right hand lane ends just after the entrance ramp from Old US 50
* I-55 NB/I-70 EB in Collinsville: Third lanes exits to IL 157, right where a decent amount of traffic from I-255 is usually merging in
* IIRC I-64 EB also used to end a lane between I-255 and IL 157
* I-55 SB south of Springfield: Third lane ends close to the entrance ramp from IL 104
* I-55 NB in the Bloomington-Normal area: Left lane ends just past the northern interchange with Veterans Parkway.
Quote from: CapeCodder on November 10, 2016, 07:43:30 PM
How far out from any city does its primary interstate gain lanes? Sorry if its worded weird, for example: I-70 in the St. Louis area gains two extra lanes in Wentzville on its way into STL. 44 gains lanes in Pacific, or have they moved that further west? IIRC 55 gained extra lanes near Barnhart.
I-80 gets a third (and quickly a forth) lane at ForestHill in Placer country and keeps it (except for the Bright Bend Bridge which is being restriped) all of the way to 9th Street in San Francisco. That's a distance of just over 100 miles (about 165 km actually). Now, that's only 30 or so miles from Sacramento and only 15 or so from Roseville.
I-5 gets a third lane (and quickly a fourth) that it keeps all of the way to the Mexican fontier on the Valley side of the Transverse Mountains, for distance of approximately 200 miles. If you were on SB CASR-99, you might have 3+ lanes all of the way from CASR-46 or even before all of the way to Mexico.