Talk:Interstate 15

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Major cities

This is not necessarily defined by population, but rather by their independence from another metropolitan statistical area, yet can stand as a prominent "stop".

San Diego, Las Vegas, Riverside, Pocatello and others fall into this category. Other cities, such as Provo, and Ogden, which are part of a greater (Salt Lake) metro area, are OK, too, since they have their own MSA area. Many cities exist in the L.A. have a population over 100,000, but are not appropriate to include in any list since they do not have their own MSA and are part of L.A.'s (excludes prominent areas such as Pasadena, LB, Santa Ana, Anaheim), North Las Vegas does not have its own MSA and is, of course, part of Las Vegas'. However, since the population is greater than 100,000 I've included it next to LV. If this is brought down again, I'll have to take the liberty to remove it permanently. However, it could be brought down as a sub-bullet.Drdr1989 19:40, 5 October 2005 (UTC)[reply]

it seems to me that Baker, California should be included on the list, as it is defined as a control city. the signs on the N 15 read Barstow Baker Las Vegas as soon as you get up into the california mountains.NeoVampTrunks 07:17, 11 June 2006 (UTC)[reply]

I added in Shelby, MT as a control city. In Great Falls, heading north, all Interstate signage shows "North, Shelby" until you reach Shelby, where it changes to "North, Lethbridge".

I'm almost positive Dillon, MT is also a control city, between Butte and Idaho Falls, on some overhead signs.

Please see California State Route 15

The southern terminus for the interstate portion of Route 15 is at Interstate 8. Route 15 then continues on southward as California State Route 15 to Harbor Drive in San Diego. Please clarify. --Geopgeop 12:02, 7 October 2005 (UTC)[reply]

Well, that was the case until very recently. The I-15 now has taken its place right to Harbor Drive. I should know since I was there recently, along with an updated AAA map. :) Drdr1989 18:32, 7 October 2005 (UTC)[reply]

Should a merge take place? --Rschen7754 (talk - contribs - count) 01:13, 8 October 2005 (UTC)[reply]

Actually, I changed the tense from present to past for the CA-15 page. A link (NOT a re-direct) could be made from the CA-15 to the I-15; and maybe one from I-15 to CA-15 somewhere in the article text of I-15. Other than that I believe that is all we need to do.67.181.147.214 06:05, 8 October 2005 (UTC)[reply]

Changed exit numbers in Utah

from [1]

new	old
233	236
242	245
244	248
248	252
250	254
253	256
257	260
258	261 (southboudn)
260	263
261	265
263	266
265A	268A (northbound)
265B	268B (northbound)
265	268 (southbound)
269	272
271	274
272	275
273	276
275	278
276	279
278	281
279	282
282	285
284	287
288	291
289	293
291	294
293	297
295	298
297	301
298	302
300	303
301	304
303	306
304	307
305A-D	new northbound exit to collector
305A	308A (new southbound)
305B	308B (308 southbound)
305C	309A (309 southbound)
305D	309B (northbound)
305C-A	new southbound exit to collector
306	310 (northbound)
307	310 (northbound HOV)
307	310 (southbound)
308	311
309	312
310	313 (southbound)
311	314
312	315
313	316 (southbound)
314	317 (southbound)
315	318
316	320
317	321
319	322
322	325 (northbound)
324	326 (northbound)
325	327 (southbound)
328	331
330	332 (northbound)
331	334
332	335
334	336
335	338
338	341
339	342 (northbound)
340	343 (southbound)
341A	344A
341B	344B
342	345 (northbound)
343	346
344	347
346	349
349	352
351	354
357	360
none	361 (port of entry)
none	363 (northbound rest area)
362	364
363	366
365	368
372	375
376	379
379	382
381	383
385	387
392	394
398	402

Major road intersections in Arizona

If Arizona had any major road intersections for that small piece of Interstate 15 within, former U.S. Route 91 would be it. Former US 91 is Fairview Avenue southwest of I-15, and after crossing becomes Cane Beds Road north of I-15. --Geopgeop 06:51, 24 April 2006 (UTC)[reply]

As the traffic engineer currently responsible for I-15 in Arizona, I have never heard of anyone from that area referring to the road running through Beaver Dam & Littlefield as either "Cane Beds Road" or "Fairview Ave". The locals call it "County 91" or "Old 91" - and Mohave County has confirmed that their name for it is "Mohave County Route 91". The signing for that interchange (new signs in 2005) lists the two communities of Beaver Dam and Littlefield. The road name sign on the mainline is "County 91" per Mohave County's preference. RCMoeur 04:46, 19 February 2007 (UTC)[reply]

GA nom?

Has anyone nominated this article for GA status yet? —Rob (talk) 04:45, 3 September 2006 (UTC)[reply]

Exit List

Unless I'm missing it, I don't see a complete listing of all the exits for I-15. It seems one is already created at I-15 exit list, but is not linked here. I can't think of a good way to add it, if someone has an idea, be my guest. Brien Clark 04:10, 28 October 2006 (UTC)[reply]

Some opening dates in Utah

These dates are from [2]. --NE2 17:21, 23 July 2007 (UTC)[reply]

November 23, 1966: South Layton to 31st Street Ogden
December 20, 1966: Provo to Spanish Fork

long distance mileage sign

Baker, California — Salt Lake City is mentioned on a mileage sign for the first time on northbound: 534 miles.

Time for a re-write of the introductory paragraph

The intro to this article is a hodge-podge IMO. For exhibit A, I present that 3 back to back sentences in the introduction start with "It is also..." Anybody mind if I take a whack at a re-write? Davemeistermoab (talk) 07:37, 17 December 2007 (UTC)[reply]

OK 3 weeks later and nobody objected, I'm going to take a whack at it Davemeistermoab (talk) 03:30, 3 January 2008 (UTC)[reply]

Due to this rapid area growth, the I-15 corridor is the focus of several mass transit projects. The Las Vegas Monorail, FrontRunner commuter rail system and TRAX light rail in Salt Lake City are mass transit lines loosely parallel to I-15 that are now in operation. Between Los Angeles and Las Vegas has long been proposed as a maglev train route; in 2004 the California-Nevada Interstate Maglev project held public meetings on the plan.

Is the above text of importance to the I-15? Besides they share loosely the same corridor, I don't see any important relation with the Interstate 15 topic. Maybe it needs to be moved elsewhere in the article, but it's in my opinion not important enough to be referred to in the introduction already. Chriszwolle (talk) 15:44, 5 January 2009 (UTC)[reply]

It's worth mentioning, but probably more appropriate in the state detail articles, or maybe in the history section of the article. As the lead section is supposed to be a summary of the rest of the article, this article needs help. Dave (talk) 18:00, 5 January 2009 (UTC)[reply]

Junction list

Continuing discussion - What seems (and I want to stress seems) to be the consensus of major coast-to-coast or border-to-border interstates is to include only the junctions with other major interstates (5, 10, 15, 20, and so on). On Interstate 80, for example, there are interstate junctions in Cleveland, which is definitely a major city, yet it's not shown in the infobox because there are no major interstate junctions there. So why does it have to be different for I-15? CountyLemonade (talk) 21:38, 17 April 2008 (UTC)[reply]

"Transcontinental"

A highway that runs from the shore of the Pacific to the Canadian border is not "transcontinental", though it does cross the US from a border to a border.--Wetman (talk) 13:24, 13 September 2010 (UTC)[reply]

Idaho exit list

Shouldn't this exit list be in an article instead of just the talk page? It's a shame that there is no "Interstate 15 in Idaho" article.--Gopats92 (talk) 16:48, 04 February 2015 (UTC)[reply]

I believe this used to be on a separate I-15 exit list article which was combined for all states. It was decided such exit lists should be divided by state-detail pages, i.e. "Interstate 15 in (state)". States like Idaho haven't had many active editors that have worked on road articles for the state, so the exit list information is stored here until someone comes along to flesh out Interstate 15 in Idaho so it is more than just an exit list. -- LJ ↗ 08:06, 5 February 2015 (UTC)[reply]

County	Location	Mile	Exit	Destinations	Notes
Oneida		0.000		I-15 south	Continuation into Utah
		2.545	3	Woodruff, Samaria
		12.889	13	SH-38 west – Malad
		16.550	17	SH-36 east – Weston, Preston
		21.524	22	Devil Creek Reservoir
Bannock		30.885	31	SH-40 east – Downey, Preston
		35.900	36	US 91 south – Virginia, Downey, Preston	South end of US-91 overlap
		40.463	40	Arimo
		44.075	44	I-15 BL north (Jensen Road) – McCammon
		47.160	47	I-15 BL south / US 30 east – Lava Hot Springs, McCammon, Soda Springs, Montpelier	South end of US-30 overlap
		56.647	57	I-15 BL north – Inkom	Northbound exit and southbound entrance
	Inkom	57.695	58	I-15 BL south – Inkom	Southbound exit and northbound entrance
		63.038	63	Portneuf Area
	Pocatello	66.807	67	I-15 BL north (5th Avenue) / US 30 west / US 91 north – Pocatello	North end of US-30/US-91 overlap
		69.397	69	Clark Street
		71.001	71	I-15 BL south (Pocatello Creek Road)
	Chubbuck	72.172	72	I-86 west – Twin Falls
		79.903	80	Fort Hall
Bingham		88.764	89	I-15 BL north / US 91 – Blackfoot
	Blackfoot	92.526	93	I-15 BL south to US 26 west / SH-39 – Blackfoot, Arco, Aberdeen	South end of US-26 overlap
		97.681	98	Rose Area, Firth
		107.990	108	Shelley Area, Firth Area
Bonneville		113.212	113	Shelley
		115.890	116	I-15 BL north / US 26 east – South Idaho Falls	North end of US-26 overlap
	Idaho Falls	118.544	118	I-15 BL south / US 20 west / US 20 Bus. east – Historic Downtown, Arco	South end of US-20 overlap
	Idaho Falls	119.098	119	US 20 east – West Yellowstone, Idaho Falls Airport, Idaho Falls	North end of US-20 overlap
		127.526	128	Osgood Area
Jefferson		134.568	135	SH-48 east – Roberts, Rigby
		143.004	143	SH-28 west / SH-33 – Salmon, Mud Lake, Rexburg
	Hamer	149.609	150	Hamer
Clark	Dubois	167.052	167	SH-22 west / CR A2 – Dubois
		171.974	172	No name
	Spencer	180.390	180	Spencer
		184.408	184	Stoddard Creek Area
		189.857	190	Humphrey
		196.000		I-15 north	Continuation into Montana

Montana exit list

County	Location	km	Exit	Destinations
Beaverhead		0	S-509 – Monida
		9	Snowline
	Lima	15	Lima
		23	Dell
		29	Kidd
		37	Red Rock
		44	S-324 – Clark Canyon Resevoir
		51	Dalys	Southbound exit and northbound entrance
		52	Grasshopper Creek
		56	Barretts
		59	S-278 / S-222 – Jackson, Wisdom
		62	I-15 BL north – Dillon
	Dillon	63	I-15 BL south to MT 1 – Dillon, Twin Bridges
		74	Birch Creek, Apex
		85	Glen
Madison		93	Melrose
Silver Bow		99	Moose Creek Road
		102	MT 43 – Divide, Wisdom
		111	Feely
		116	Buxton
		119	Hub Access, Silver Bow
		121	I-90 west – Missoula	South end of I-90 overlap
		122	S-276 – Rocker
	Butte	124	I-15 BL north / I-90 BL east – Butte City Center	Northbound exit and southbound entrance
		126	Montana Street
		127	I-15 BL south / I-90 BL west (Harrison Avenue, MT 2)	Signed as exits 127A (south) and 127B (north) northbound
		129	I-90 east – Billings	East end of I-90 overlap
Jefferson		134	Woodville
		138	Elk Park
		151	Bernice
		156	Basin
		160	High Ore Road
		164	MT 69 – Boulder
		176	Jefferson City
		182	Clancy
		187	S-518 / S-282 – Montana City
Lewis and Clark		190	South Helena, Nob Hill Area
	Helena	192	I-15 BL north / US 12 / US 287 south – Townsend, Capitol Area	South end of US 287 overlap; signed as exits 192A (east) and 192B (west/south) northbound
		193	I-15 BL south (Cedar Street)
		200	S-279 / S-453 (Lincoln Road)
		209	Gate of the Mountains
		216	Sieben
		219	Spring Creek
		226	S-434 – Wolf Creek
		228	US 287 north – Augusta, Chateau
		234	Craig
Cascade		240	Dearborn
		244	Canyon Access
		247	Hardy Creek
		250	Local Access
		254	MT 68 – Cascade
		256	MT 68 – Cascade
		270	S-330 – Ulm
		277	Great Falls International Airport
	Great Falls	278	I-15 BL north / US 89 south / MT 200 east (10th Avenue South, I-315, MT 3 south)	South end of US 89/MT 200 overlap
	Great Falls	280	I-15 BL south to US 87 north (Central Avenue West)
		282	To US 87 north / Northwest Bypass
		286	Manchester
		290	US 89 north / MT 200 west – Missoula, Chateau	North end of US 89/MT 200 overlap
		297	Gordon
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

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Protection level change

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