Wiki Largest gaps between Superchargers on US Interstates

[ItsNotAboutTheMoney]

On the Socorro, NM thread @PLUS EV asked if I had a list of gaps 140 miles or greater.

Of course I do!
I posted there, but I figured I'd create a separate thread for it.

MAJOR EDIT:
Reorganized to::
1) Top 25 regular gaps not yet split
2) Gaps on "Future Interstates" or current fastest route between open segments
3) Open Splitters

MAJOR EDIT:
1) Top table shows all remaining gaps on current Interstates. (46 at time of edit).

Seq	Hwy	From	State	To	State	Gap	Splitter	State	To	From	Note
1	I-40	Oklahoma City - NE 36th St	OK	Van Buren	AR	187.9	Henryetta	OK	92.6	97.2	findus 2024
2	I-55	Southaven	MS	Miner	MO	156.2	Memphis - S Highland St	TN	16.6	149.2
3	I-40	Kingman	AZ	Flagstaff	AZ	147
4	I-44	Start (US-277/US-281/US-287 Wichita Falls	TX)	Oklahoma City - NE 36th St	OK	144.3	Wichita Falls	TX	2.1	143	2024Q1 Vote Lawton, OK!
5	I-40	Start (I-15 Barstow	CA)	Needles	CA	141
6	I-94	Start (I-90 near Lockwood	MT)	Miles City	MT	137.3
7	I-10	Willcox	AZ	Deming	NM	134	Lordsburg	NM	73.9	60.8
8	I-90	Mitchell	SD	Worthington	MN	126.9					Diversion: Sioux Falls, SD 14.3/17.5
9	I-84W	Boise	ID	Twin Falls	ID	126.5					findus Mountain Home, ID 2024
10	I-29	St. Joseph	MO	Council Bluffs	IA	125.8
11	I-35	Laredo	TX	Natalia	TX	125.5	Cotulla	TX	65.9	60.1
12	I-80	Winnemucca	NV	Elko	NV	125.1	Carlin	NV	104.5	20.9	+findus Carlin, NV Q1 2024
13	I-25	Las Vegas	NM	Trinidad	CO	124.2	Wagon Mound	NM	40.5	84	also Raton, NM
14	I-90	Billings - N Frontage Rd	MT	Sheridan	WY	123.8
15	I-70	Richfield	UT	Green River	UT	123.2
16	I-64	Lexington	KY	Huntington	WV	121.5
17	I-69	Indianapolis	IN	Fort Wayne - Illinois Rd	IN	121.1					2024Q1 Vote Gas City, IN!
18	I-10	Van Horn - W Broadway St	TX	Fort Stockton	TX	120.7
19	I-75	Bay City	MI	Gaylord	MI	120.5
20	I-25	Evansville	WY	End (I-90 near Buffalo	WY)	119.3
21	I-15	Great Falls	MT	End (Canada @ Sweet Grass	MT)	118.8					2024Q1 Vote Shelby, MT!
22	I-90	Missoula	MT	Butte - Grizzly Trl	MT	117.8
23	I-15	Beaver - 525 W	UT	Nephi - S Main St	UT	114.7	Scipio	UT	80.4	34.9
24	I-40	Albuquerque - Louisiana Blvd NE	NM	Santa Rosa	NM	114.5	Encino	NM	72.2	42.9	Encio NM NEVI 1/2024
25	I-55	Pearl	MS	Grenada	MS	114.3
26	I-80	Rock Springs	WY	Rawlins	WY	114
27	I-64	Haubstadt	IN	Louisville	KY	112.6
28	I-86E	Salamanca	NY	Erwin	NY	110
29	I-84W	Burley	ID	Tremonton	UT	109.6
30	I-70	Limon	CO	Goodland	KS	108
31	I-39	Madison - E Washington Ave	WI	Stevens Point	WI	107.6
31	I-15	Lima	MT	Butte - Grizzly Trl	MT	107.6
33	I-10	Fort Stockton	TX	Ozona	TX	107.3
34	I-40	Tucumcari	NM	Amarillo	TX	106
35	I-44	Springfield	MO	Rolla	MO	105.8	Springfield - N Mulroy Rd	MO	5.3	100.9
36	I-75	West Chester Township	OH	Lima	OH	103.7					Diversion Dayton, OH 11/16
37	I-10	El Paso - Eastlake Blvd	TX	Van Horn - W Broadway St	TX	103.6
38	I-81	Harrisburg	PA	Wilkes-Barre Township	PA	103.2
39	I-20	Lindale	TX	Shreveport	LA	103	Tyler	TX	19.5	84.4
40	I-29	Sioux Falls	SD	Watertown	SD	102.6
41	I-25	Wheatland	WY	Evansville	WY	102.2
42	I-8	La Mesa	CA	El Centro - Wake Ave	CA	102	Lakeside	CA	8.9	100.9
42	I-90	Sheridan	WY	Gillette	WY	102
42	I-94	Bismarck	ND	Jamestown	ND	102
45	I-10	Indio	CA	Ehrenberg	AZ	101.4
46	I-80	Cheyenne	WY	Sidney	NE	100.9

Future:

1	I-49	Texarkana	TX	Lowell	AR	250.3					Future
3	I-69W	Start (Laredo at Mexico	TX)	Victoria	TX	184					Future
4	I-74	West Cincinnati	OH	Huntington	WV	158.7					Future Not
5	I-11	Wickenburg	AZ	Kingman - W Andy Devine	AZ	130.5					Future; Wikieup, AZ 2024
8	I-69	Southaven	MS	Union City	TN	125.4
6	I-69E	Brownsville	TX	Kingsville	TX	116.1					Future
7	I-69C	Start (Pharr	TX)	Alice	TX	109	Falfurrias	TX	71.7	37.8	Future
8	I-11	Las Vegas - W Tropical Pkwy	NV	Beatty	NV	107.4
36	I-69E	Kingsville	TX	End (US-59 Victoria	TX)	105.2					Future
10	I-11	Casa Grande	AZ	Buckeye	AZ	103.9					Future
11	I-69E	Kingsville - E Corral Ave	TX	End (US-59 Victoria	TX)	102.9	Refugio	TX	67.8	35.2	Future
12	I-69	Carthage	TX	Texarkana	TX	101.8					Future Not

Open:

Seq	Hwy	From	State	To	State	Gap	Splitter	State	To	From	Note
	I-69	Brinkley	AR	Kuttawa	KY	280.1	Southaven	MS	84.1	203.7	Future Not
0	I-44	Start (Wichita Falls	TX)	Catoosa	OK	255.6	Tulsa	OK	5.7	248.5
0	I-26	Asheville	NC	North Charleston	SC	253.8	Asheville - Thetford St	NC	5.7	248.5
0	I-26	Asheville - Thetford St	NC	North Charleston	SC	248.5	Orangeburg	SC	180.4	69
0	I-44	Start (Wichita Falls	TX)	Tulsa	OK	242.1	Oklahoma City - NE 36th St	OK	144.3	99.8
2	I-29	Sioux Falls	SD	Fargo	ND	241.6	Watertown	SD	102.6	143.1
2	I-55	Grenada	MS	Miner	MO	239.4	Southaven	MS	84	156.2	Diversion: Memphis, TN 23/27
2	I-69	Kuttawa	KY	Bloomington	IN	212	Haubstadt	IN	108.9	103.5
0	I-69	Southaven	MS	Kuttawa	KY	202.7	Union City	TN	125.4	77.3
2	I-64	Mount Vernon	IL	Louisville	KY	195.1	Haubstadt	IN	81.4	112.6
0	I-40	Oklahoma City	OK	Van Buren	AR	194.3	Oklahoma City - NE 36th St	OK	14.5	187.9
2	I-40	Ozark	AR	Brinkley	AR	181.6	Conway	AR	95.1	88.1
4	I-26	Asheville - Thetford St	NC	Orangeburg	SC	180.4	Columbia - Harbison Blvd	SC	138.3	42.9
4	I-35	Laredo	TX	Schertz	TX	173.5	Natalia	TX	125.5	48.6
4	I-35	Ardmore	OK	Perry	OK	155.4	Oklahoma City - NE 36th St	OK	99.4	57.9	Diversion: Oklahoma City, OK 19.8/27.5
5	I-69	Nacogdoches	TX	Texarkana	TX	151.2	Carthage	TX	49.6	101.8	Future Not
7	I-25	Truth or Consequences	NM	Albuquerque	NM	150.2	Socorro	NM	138.3	42.9
7	I-69C	Start (Pharr	TX)	End (George West	TX)	149.5	Alice	TX	108.8	41.1	Future and current
7	I-69	Houston - W Alabama St	TX	Nacogdoches	TX	148.5	Livingston	TX	78	71.8	Future
7	I-49	Joplin	MO	End (I-435 near Kansas City	MO)	148.3	Nevada	MO	41.4	82.2
8	I-40	Gallup	NM	Albuquerque	NM	145.8	Milan	NM	63.4	82.9
8	I-59	Meridian	MS	Birmingham	AL	144.8	Cottondale	AL	96.6	49.2
8	I-20	Meridian	MS	Birmingham	AL	144.8	Cottondale	AL	96.6	49.2
8	I-29	Watertown	SD	Fargo	ND	143.1	Sisseton	SD	57.9	88.8
9	I-5	Grants Pass	OR	Springfield - Kruse Way	OR	138.4	Myrtle Creek	OR	46.9	92.4
9	I-26	Asheville - Thetford St	NC	Columbia - Harbison Blvd	SC	138.3	Spartanburg	SC	56.5	84
10	I-90	Billings	MT	Sheridan	WY	136.2	Billings - N Frontage Rd	MT	13.1	123.8
10	I-84W	The Dalles	OR	Pendleton	OR	134	Boardman	OR	81.8	52.4
11	I-95	Augusta	ME	Medway	ME	133.1	Waterville	ME	19.1	114.4
11	I-55	Miner	MO	Mehlville	MO	132	Cape Girardeau	MO	33.1	98.8
11	I-55	Texarkana	TX	Little Rock	AR	131.9	Hope	AR	32.4	99.8
6	I-69	Texarkana	TX	Little Rock	AR	131.9	Hope	AR	32.4	99.8	Future Not
11	I-25	Trinidad	CO	Colorado Springs	CO	131.7	Pueblo	CO	88.1	44.6
11	I-39	Madison - E Washington Ave	WI	End (US51/WI29 near Wausau	WI)	131.7	Stevens Point	WI	107.6	26.7
9	I-10	El Paso	TX	Van Horn - W Broadway St	TX	130.8	El Paso - Eastlake Blvd	TX	28	103.3
12	I-65	Greenville	AL	Mountain Brook	AL	130.4	Montgomery - Mobile Hwy	AL	37.9	93.6
12	I-76E	Carlisle	PA	End (I-295 near Camden	NJ)	130	Denver	PA	66.1	40.2
12	I-22	Tupelo	MS	Birmingham	AL	129.3	Guin	AL	60.5	69.9
12	I-77	Charlotte - Northlake Centre Pkwy	NC	Wytheville	VA	129	Mooresville	NC	19.2	112.7
12	I-11	Start (Nogales	AZ)	Casa Grande	AZ	129	Tucson - W River Rd	AZ	73.9	56.2
8	I-69	Humble	TX	Nacogdoches	TX	128.9	Livingstone	TX	58.4	71.8	Future
12	I-74	Archdale	NC	End (NC41 at Lumberton	NC)	128.8	Rockingham	NC	75.2	49.9
12	I-65	Mobile	AL	Greenville	AL	128.3	Evergreen	AL	94.2	34.7
12	I-10	Channelview	TX	Lake Charles	LA	127.6	Baytown	TX	9	118.8
12	I-69	Indianapolis	IN	Fort Wayne	IN	127.3	Fort Wayne - Illinois Rd	IN	121.1	7.3
14	I-40	Cary	NC	Wallace	NC	126	Garner	NC	34.9	53.3
14	I-43	Start (I-39 near Beloit	WI)	Sheboygan	WI	125.8	Glendale	WI	77	49.4
16	I-27	Start (US-87 Lubbock	TX)	End (I-40/US-60/US-87 Amarillo	TX)	124.3	Plainview	TX	49.4	74.9
16	I-64	Mt. Hope	WV	Lexington	VA	124.2	Lewisburg	WV	54	71.3
16	I-90	Missoula	MT	Butte	MT	123.5	Butte - Grizzly Trl	MT	117.8	6
20	I-20	Lithonia	GA	Augusta - Belair Frontage Rd	GA	123	Madison	GA	44.1	80
20	I-75	Cincinnati	OH	Lima	OH	122.6	West Chester Township	OH	22	103.7	Diversion Dayton, OH 11/16
20	I-15	Las Vegas - Grand Central Parkway	NV	St. George	UT	121.9	Mesquite	NV	80.1	42.9
20	I-77	Cambridge	OH	End (I-90 at Cleveland	OH)	121.8	New Philadelphia	OH	39.7	82.9
20	I-49	Alexandria	LA	Shreveport	LA	121.3	Natchitoches	LA	53.9	68.5
21	I-90	Sheffield	OH	Erie	PA	120.9	Cleveland - Euclid Ave	OH	27.3	94.8
23	I-20	Cisco	TX	Arlington - E Bardin Rd	TX	120.2	Santo	TX	56.9	64
24	I-57	Miner	MO	Mount Vernon	IL	119.8	Marion	IL	78.9	41.9
26	I-10	Baytown	TX	Lake Charles	LA	118.7	Beaumont - Walden Rd	TX	57.4	61.9
26	I-11	Las Vegas - Bridger Ave	NV	Beatty	NV	118.7	Las Vegas - W Tropical Pkwy	NV	14.3	107.4	Future
26	I-20	Monroe	LA	Pearl	MS	118.4	Vicksburg	MS	71.2	48.8
29	I-40	Knoxville - Brookview Centre Way	TN	Asheville	NC	117.4	Sevierville	TN	25.7	93.2
29	I-40	Albuquerque	NM	Santa Rosa	NM	116.8	Albuquerque - Louisiana Blvd NE	NM	3.7	114.5
30	I-88W	Start (I-80 near Moline	IL)	North Aurora	IL	116	Rochelle	IL	77.7	40.9
30	I-85	Buford	GA	Greenville	SC	115.9	Fair Play	SC	69.1	47
30	I-64	Start (I-70 at Wentzville	MO)	Mount Vernon	IL	115.5	Brentwood	MO	31.7	84.8
25	I-81	Harrisburg	PA	Moosic	PA	115.2	Wilkes-Barre Township	PA	103.2	14.5
34	I-74	Champaign	IL	Speedway	IN	114.4	Veedersburg	IN	56.9	59.4
26	I-95	Waterville	ME	Medway	ME	114.4	Bangor - Broadway	ME	56.1	59.8	Diversion: Brewer, ME 10.7/14.5
30	I-65	Louisville	KY	Indianapolis - E Southport Rd	IN	114	Columbus	IN	74.1	40.3
37	I-80	Chicago - O’Hare	IL	Mishawaka	IN	113.7	Rolling Prairie - S Knute Rockne Plaza	IN	88.2	25.5
37	I-20	Midland	TX	Sweetwater	TX	113.5	Big Spring	TX	48.8	65.5
29	I-15	Lima	MT	Butte	MT	113.3	Butte - Grizzly Trl	MT	107.6	6
39	I-77	Mooresville	NC	Wytheville	VA	112.7	Mt Airy - Graceland Ln	NC	66.7	47.4
27	I-76E	Start (I-71 near Westfield Center	OH)	Cranberry Township - US 19	PA	112.7	New Springfield - Glacier Hills Service Plaza	OH	79.1	33.4
40	I-70	Independence	MO	Columbia - W Broadway	MO	111.9	Concordia	MO	44.7	67.7
40	I-10	Slidell	LA	Mobile	AL	111.2	D'Iberville	MS	57.1	55.8
41	I-91	West Lebanon	NH	End (Canada @ Derby Line	NH)	109.7	St. Johnsbury	VT	65.9	45.8
41	I-35	Olathe	KS	Bethany	MO	109.6	Liberty	MO	33.8	76.7
42	I-44	Rolla	MO	End (I-70 St Louis	MO)	109.3	St. Louis	MO	103.5	6.4
42	I-90	Coeur d'Alene	ID	Superior	MT	109.3	St. Regis	MT	95.9	13.9
42	I-94	Fargo	ND	Alexandria	MN	109.1	Fergus Falls	MN	59.9	49.8
42	I-75	Tifton	GA	Macon - Tom Hill Sr Rd	GA	109	Cordele	GA	40.5	70.4
42	I-69	Kuttawa	KY	Haubstadt	IN	108.9	Evansville	IN	100.7	13.8
42	I-24	Kuttawa	KY	Nashville	TN	108.5	Nashville - 11th Ave N	TN	104	7.6
42	I-55	Normal	IL	Bolingbrook	IL	108	Dwight	IL	53.7	55
44	I-10	Mobile	AL	Crestview	FL	107.4	Robertsdale	AL	34.2	74
47	I-65	Bowling Green	KY	Louisville - Preston Hwy	KY	105.9	Elizabethtown	KY	70.1	36.5
47	I-70	Colby	KS	Hays	KS	105.9	Oakley	KS	22.5	83.9	findus Russell, KS Q1 2023
49	I-85	Greenville	SC	Charlotte	NC	105.1	Gastonia	NC	78.8	28.2
49	I-80	Maumee	OH	Strongsville	OH	105	Genoa - Wyandot Service Plaza	OH	18.7	86.8
49	I-70	Salina	KS	Topeka	KS	104.5	Abilene	KS	23.5	81.7
49	I-20	Shreveport	LA	Monroe	LA	104.4	Ruston	LA	70.3	34.6
44	I-24	Kuttawa	KY	Nashville - 11th Ave N	TN	104	Nashville - Dickerson Pike	TN	99.9	7.2
52	I-69	Haubstadt	IN	Bloomington	IN	103.5	Washington	IN	47.7	57.7
52	I-44	Rolla	MO	St. Louis	MO	103.5	Fenton	MO	90.5	14.1
38	I-10	San Antonio	TX	Flatonia	TX	103.2	Luling	TX	73.2	30.4
53	I-16	Start (I-75 at Macon	GA)	Metter	GA	103.1	Dublin	GA	50.6	53.2
54	I-94	Eau Claire	WI	Mauston	WI	102.7	Tomah	WI	74.5	29
54	I-35	Albert Lea - Happy Trails Lane	MN	Oakdale	MN	102.6	Eagan	MN	83.6	20.8
56	I-80	Gothenburg	NE	Grand Island	NE	102	Kearney	NE	62.4	41.9
60	I-20	Arlington	TX	Lindale	TX	101	Dallas - S Riverfront Blvd	TX	16.8	88.7
61	I-69	Victoria	TX	Richmond	TX	100.9	Wharton	TX	68.9	33.2
	I-69	Kuttawa	KY	Evansville	IN	100.7	Nortonville	KY	42.6	62.1

Status	Pathetic	Total
Permit	4	9
Construction	0	0
None	0	37

All gaps:
Total 5447.3
Avg 118.4

Top 25 gaps:
Total 25 3232.2
Avg 25 129.3

 

[mociaf9]

Since you have your spreadsheet already, maybe you can answer another question. Which US Interstates have the most gaps over 100 mi.?

 

[TomServo]

I have driven Mt Vernon to Louisville and return on two trips and the plug to plug mileage the car reports is 199.3 miles. Here’s trip info from Louisville to Mt Vernon from my trip in July.

I wouldn't want to do this in the winter.

 

[ItsNotAboutTheMoney]

I have driven Mt Vernon to Louisville and return on two trips and the plug to plug mileage the car reports is 199.3 miles. Here’s trip info from Louisville to Mt Vernon from my trip in July.

I wouldn't want to do this in the winter.

I should have added a couple more notes: the distances are in the standard Interstate directions: even west to east and odd south to north.
Also, it's according to Supercharge.info which uses Mapbox, using OSM.

 

[ThomasD]

London KY to Cincinnati Ohio on I 75

 

[bruce4000]

And then there’s gaps like I84 from the 5 stall v2 charger on the west side of the Dallas OR to the 8 stall v2 charger on the east side of Pendleton that is over 134 miles but through the Columbia gorge which commonly has strong headwinds and cold in the winter.

 

[ItsNotAboutTheMoney]

>=	100	120	140	150	160	180	200	Extra
I-69	9	6	4	3	3	2	2	1
I-10	8	3	0	0	0	0	0	0
I-40	8	5	5	2	2	2	0	0
I-20	7	2	1	0	0	0	0	0
I-90	6	4	0	0	0	0	0	0
I-25	5	3	1	1	0	0	0	0
I-64	5	2	1	1	1	1	0	1
I-80	5	1	0	0	0	0	0	0

The Extra refers to an extra count in my list for at minimum the >= 100 column, but usually more. This is where an unopened splitter of a large gap still leaves gaps over 100 and I've added entries for the new gaps.
Right now it's just the effect of Haubstadt, IN under construction.

 

[ItsNotAboutTheMoney]

I should have added a couple more notes: the distances are in the standard Interstate directions: even west to east and odd south to north.
Also, it's according to Supercharge.info which uses Mapbox, using OSM.

And the distances seemingly often change.

 

[ItsNotAboutTheMoney]

London KY to Cincinnati Ohio on I 75

? It's split by two:
Lexington, KY
Florence - Houston Road, KY

 

[PLUS EV]

On the Socorro, NM thread @PLUS EV asked if I had a list of gaps 140 miles or greater.

Of course I do!

I posted there, but I figured I'd create a separate thread for it.

Note that:
- I've included some gaps that are future Interstate-ish routes like I-69. Those Interstate routes may never be built, but since they're identified it makes sense they have traffic and need Superchargers, right?
- I don't tolerate much diversion, so for example I-35 from Ardmore to Perry, OK is listed because Oklahoma City, OK is over 10 miles diversion and I-55 is listed because of the relic of Tesla's location desperation, Memphis, TN.
- I ignore urban Superchargers.
- Only a few of gaps listed have even identified splitter locations. Haubstadt, IN and Nevada, MO are under construction. Socorro, NM is identified.
- Watertown, SD to Fargo, ND is listed, and Watertown, SD fairly recently split a larger gap on I-29 from Sioux Falls, SD to Fargo, ND.
-Meridian, MS to Birmingham, AL is on an I-20/I-59 concurrency so listed twice

Seq	Hwy	From	State	To	State	Gap	Splitter	State	To	From
1	I-69	Brinkley	AR	Kuttawa	KY	280.1
2	I-44	Start (US-277/281/287 Wichita Falls)	TX	Catoosa	OK	255
3	I-26	Asheville	NC	North Charleston	SC	253.8
4	I-49	Texarkana	TX	Lowell	AR	250.3
5	I-55	Grenada	MS	Miner	MO	239.4
6	I-69	Kuttawa	KY	Bloomington	IN	212	Haubstadt	IN	108.9	103.5
7	I-64	Mount Vernon	IL	Louisville	KY	195.1	Haubstadt	IN	81.4	112.6
8	I-40	Oklahoma City	OK	Van Buren	AR	194.3
9	I-69W	Laredo at Mexico	TX	Victoria	TX	184
10	I-40	Ozark	AR	Brinkley	AR	181.6
11	I-35	Laredo	TX	Schertz	TX	173.1
12	I-69	Richmond	TX	Nacogdoches	TX	170
13	I-74	West Cincinnati	OH	Huntington	WV	158.7
14	I-35	Ardmore	OK	Perry	OK	155
15	I-25	Truth or Consequences	NM	Albuquerque	NM	150.2	Socorro	NM	72.8	79.1
16	I-69C	Pharr	TX	George West	TX	149
17	I-49	Joplin	MO	End (I-435 near Kansas City	MO)	148.3	Nevada	MO	67.4	82.2
18	I-40	Kingman	AZ	Flagstaff	AZ	147
19	I-69	Nacogdoches	TX	Texarkana	AR	145.9
20	I-59	Meridian	MS	Birmingham	AL	144.8
20	I-20	Meridian	MS	Birmingham	AL	144.8
21	I-40	Gallup	NM	Albuquerque	NM	144
23	I-29	Watertown	SD	Fargo	ND	143.1
24	I-40	Start(Barstow	CA)	Needles	CA	141

Aside: this is from a worksheet I have that goes down to 100 miles. That list has a total of 122 unsplit gaps. 9 gaps from my original list have been split (including some splits still greater than 100 miles), 8 are under construction and 3 have an identified ("permit") location.

My methodology would be quite a bit more "loose" than yours. I wouldn't count all these "future interstates" and I wouldn't worry so much about the diversions. They are inconvenient, but when you are worrying about ending up on the side of the road vs. diverting 15-20 minutes to an inconveniently located supercharger, the choice is obvious.

So my list would be something like:

1) OKC-Van Buren 194mi
2) Laredo-San Antonio 164mi
3) Sheridan-Evansville* 154mi
4) ABQ-Truth or Consequences 150mi
5) Watertown-Fargo 147mi
6) Kingman-Flagstaff 147mi
7) Gallup-ABQ 145mi
8) Meridian-Birmingham 145mi

Honorable mention goes to Shelby-Fort MacLeod at 215 miles, although obviously a lot of that is in another country.

Sheridan-Evansville is two different interstates, but it's obviously going to be a common route for people in that area.

I didn't bother including Mount Vernon-Louisville because Haubstadt is about to open. I also didn't include Barstow-Needles (which is actually 147 miles) because Yermo is an easy bailout in the uphill direction (which is the only direction that matters) and it cuts the gap to <140 miles.

#2 and #8 are not much of a concern since the climate is favorable and there's no significant elevation change.

#1, #5, and #6 are probably the biggest issues to address.

#1 is really the only one that could be tough to make under certain conditions assuming one is aware of the large gap and actually trying to charge to near full and extend range to the extent possible.

 

[ItsNotAboutTheMoney]

My methodology would be quite a bit more "loose" than yours. I wouldn't count all these "future interstates" and I wouldn't worry so much about the diversions. They are inconvenient, but when you are worrying about ending up on the side of the road vs. diverting 15-20 minutes to an inconveniently located supercharger, the choice is obvious.

So my list would be something like:

1) OKC-Van Buren 194mi
2) Laredo-San Antonio 164mi
3) Sheridan-Evansville* 154mi
4) ABQ-Truth or Consequences 150mi
5) Watertown-Fargo 147mi
6) Kingman-Flagstaff 147mi
7) Gallup-ABQ 145mi
8) Meridian-Birmingham 145mi

Honorable mention goes to Shelby-Fort MacLeod at 215 miles, although obviously a lot of that is in another country.

Sheridan-Evansville is two different interstates, but it's obviously going to be a common route for people in that area.

I didn't bother including Mount Vernon-Louisville because Haubstadt is about to open. I also didn't include Barstow-Needles (which is actually 147 miles) because Yermo is an easy bailout in the uphill direction (which is the only direction that matters) and it cuts the gap to <140 miles.

#2 and #8 are not much of a concern since the climate is favorable and there's no significant elevation change.

#1, #5, and #6 are probably the biggest issues to address.

#1 is really the only one that could be tough to make under certain conditions assuming one is aware of the large gap and actually trying to charge to near full and extend range to the extent possible.

While you and other EV drivers might tolerate some large diversions, I'm looking at it more from a sense of completion.

I don't have elevations, so obviously some are a bigger issue than others. But even in favorable conditions the practical problem with some of these larger gaps, especially where 2 larger gaps are connected, is that the stops, can become mandatory, and it becomes a stress point. Really for removing stress you want more some splitting of consecutive 100-mile gaps. Consecutive 100+ gaps is something else to look at.,

.On the Sheridan-Evansville issue, I have gaps for travel between different Interstates on a separate list that I need to update. Not surprising to note that I-26 has some of the larger numbers.

 

[Tectonic]

My methodology would be quite a bit more "loose" than yours. I wouldn't count all these "future interstates" and I wouldn't worry so much about the diversions. They are inconvenient, but when you are worrying about ending up on the side of the road vs. diverting 15-20 minutes to an inconveniently located supercharger, the choice is obvious.

So my list would be something like:

1) OKC-Van Buren 194mi
2) Laredo-San Antonio 164mi
3) Sheridan-Evansville* 154mi
4) ABQ-Truth or Consequences 150mi
5) Watertown-Fargo 147mi
6) Kingman-Flagstaff 147mi
7) Gallup-ABQ 145mi
8) Meridian-Birmingham 145mi

Honorable mention goes to Shelby-Fort MacLeod at 215 miles, although obviously a lot of that is in another country.

Sheridan-Evansville is two different interstates, but it's obviously going to be a common route for people in that area.

I didn't bother including Mount Vernon-Louisville because Haubstadt is about to open. I also didn't include Barstow-Needles (which is actually 147 miles) because Yermo is an easy bailout in the uphill direction (which is the only direction that matters) and it cuts the gap to <140 miles.

#2 and #8 are not much of a concern since the climate is favorable and there's no significant elevation change.

#1, #5, and #6 are probably the biggest issues to address.

#1 is really the only one that could be tough to make under certain conditions assuming one is aware of the large gap and actually trying to charge to near full and extend range to the extent possible.

Don't forget Billings to Miles City, MT. That's 152 miles between superchargers. Technically I-90 to I-94, but that's semantic if you're driving it.

Custer, MT, which would split that gap, is now listed as "target Q2 2022" - we'll hope!

 

[PLUS EV]

Don't forget Billings to Miles City, MT. That's 152 miles between superchargers. Technically I-90 to I-94, but that's semantic if you're driving it.

Custer, MT, which would split that gap, is now listed as "target Q2 2022" - we'll hope!

Yes, same category as Sheridan-Evansville.

 

[ItsNotAboutTheMoney]

Splitter! Mesquite, NV under construction. Splits 121.9 miles between Las Vegas, NV and St. George, UT.

 

[ItsNotAboutTheMoney]

Spliter! Rockingham, NC under construction. Splits 125.1 miles from Archdale, NC to the end of I-74. (Much of that section is Future I-74.)

 

[Rocky_H]

I'm curious:
1. Is there a reason why this is limited to only Interstates? Maybe that's just because this is very manually calculated, so easier to work with the smaller number of routes.

2. Would it be possible to include the U.S. federal highways, which are still major routes in a lot of places where there are no Interstates?

I ask this because Monday and Tuesday, I drove back from Los Angeles to Boise. That path northward, through California, Nevada, and Oregon is almost all U.S. highways, (395 and 95) where there are no Interstates--about 750 miles of it. Most of that had Supercharger coverage, but the Winnemucca to Boise section still doesn't, which is over 250 miles.

 

[Tectonic]

I'm curious:
1. Is there a reason why this is limited to only Interstates? Maybe that's just because this is very manually calculated, so easier to work with the smaller number of routes.

2. Would it be possible to include the U.S. federal highways, which are still major routes in a lot of places where there are no Interstates?

I ask this because Monday and Tuesday, I drove back from Los Angeles to Boise. That path northward, through California, Nevada, and Oregon is almost all U.S. highways, (395 and 95) where there are no Interstates--about 750 miles of it. Most of that had Supercharger coverage, but the Winnemucca to Boise section still doesn't, which is over 250 miles.

I think the list of gaps on US highways would be long. But what the heck, I'll start:

US-2, Spokane, WA to Grand Forks, ND: 1,150 miles.

Can anyone beat that one?

 

[wws]

I think the list of gaps on US highways would be long. But what the heck, I'll start:

US-2, Spokane, WA to Grand Forks, ND: 1,150 miles.

Can anyone beat that one?

If we count Canada, then Real Soon Now, Soldotna Alaska to Prince George BC - 1855 miles.

 

[ItsNotAboutTheMoney]

I think the list of gaps on US highways would be long. But what the heck, I'll start:

US-2, Spokane, WA to Grand Forks, ND: 1,150 miles.

Can anyone beat that one?

Hmm ...

I got 1159.3 miles following US-2 for that.
If Shelby, MT actually gets built it'll split the gaps to 417.5 miles and 741.9 miles.
US-60 Wickenburg, AZ to Miner, MO is 1583.5 miles. Plenty of places in between, but not actually close to that highway. Even once Socorro, NM is open, Socorro, NM to Miner, MO will be 1152.8 miles.

 

[ItsNotAboutTheMoney]

I'm curious:
1. Is there a reason why this is limited to only Interstates? Maybe that's just because this is very manually calculated, so easier to work with the smaller number of routes.

2. Would it be possible to include the U.S. federal highways, which are still major routes in a lot of places where there are no Interstates?

I ask this because Monday and Tuesday, I drove back from Los Angeles to Boise. That path northward, through California, Nevada, and Oregon is almost all U.S. highways, (395 and 95) where there are no Interstates--about 750 miles of it. Most of that had Supercharger coverage, but the Winnemucca to Boise section still doesn't, which is over 250 miles.

I have a separate list of spacing along US Numbered Highways and some of those gaps are very long if you're following the highway and don't want significant diversion.

The thing is that in contrast to Interstates, an individual US Numbered Highways is often not the fastest route, so a _faster_ diversion can get you to a Supercharger by an Interstate or other highway.

A useful list of gaps on US Numbered Highways would likely need to be more selective.

Still, my sense of completion means I am tracking along US highways, and it's clear that Tesla is filling in holes along many of those in as well. It's nerd-exciting to me when the largest gap drops below 250 miles, then 200, then 150 and then, sometimes, 100.

And yes, I have a lot of manual processes, and yes I should work more on automating it, but I'm a procrastinator.