Dwight D. Eisenhower National System of Interstate and Defense Highways
Highway shield for Interstate 90 and the Eisenhower Interstate System
Primary Interstate Highways in the 48 contiguous states as of 2024
System information
Formed	June 29, 1956[1]
Highway names
Interstates	Interstate X (I-X)
System links
Interstate Highway System Main Auxiliary Suffixed Business Future

There are 71 primary Interstate Highways in theInterstate Highway System, a network offreeways in the United States. These primary highways are assigned one- or two-digitroute numbers, whereas their associatedauxiliary Interstate Highways receive three-digit route numbers. Typically, even-numbered Interstates run east–west, with lower numbers in the south and higher numbers in the north; odd-numbered Interstates run north–south, with lower numbers in the west and higher numbers in the east. Route numbers divisible by 5 usually represent major coast-to-coast or border-to-border routes (ex.I-10 connectsSanta Monica, California toJacksonville, Florida, extending between the Pacific and Atlantic oceans). Auxiliary highways have an added digit prefixing the number of the parent highway.

Five route numbers are duplicated in the system; the corresponding highways are in different regions, reducing potential confusion. In addition to primary highways in the contiguous United States, there are signed Interstates inHawaii and unsigned Interstates inAlaska andPuerto Rico.

There are 71 primary interstate highways in the 48 contiguous United States as well as five former and one future primary interstate highway. This number does not includeauxiliary Interstate Highways.

Number	Length (mi)[2]	Length (km)	Southern or western terminus	Northern or eastern terminus	Formed	Removed	Notes
I-2	46.80	75.32	US 83/Bus. US 83-S inLa Joya, TX	I-69E/US 77/US 83 inHarlingen, TX	02013-01-012013	current	Unfinished in Texas; Texas only
I-4	132.30	212.92	I-275 inTampa, FL	I-95/SR 400 atDaytona Beach, FL	01959-01-011959	current	Florida only
I-5	1,381.29	2,222.97	Fed. 1/Fed. 1D atSan Diego, CA	Highway 99 atBlaine, WA	01956-01-011956	current	Serves three states:California,Oregon,Washington Associated routes:I-105,I-205,I-305,I-405,I-505,I-605,I-705,I-805; Planned:I-905 in California
I-8	350.34	563.82	Sunset Cliffs Boulevard & Nimitz Boulevard inSan Diego, CA	I-10 inCasa Grande, AZ	01964-01-011964	current	Serves two states: California, Arizona
I-10	2,460.34	3,959.53	SR 1 inSanta Monica, CA	I-95/US 17 inJacksonville, FL	01957-01-011957	current	Serves eight states:California,Arizona,New Mexico,Texas,Louisiana,Mississippi,Alabama,Florida Associated routes:I-110,I-210,I-310,I-410,I-510,I-610,I-710,I-910
I-11	54.193	87.215	US 93 at theArizona state line	FutureI-11/US 95/SR 157 inLas Vegas, NV	02017-01-012017	current	Unfinished in Nevada; Nevada only; planned in one more: Arizona
I-12	85.59	137.74	I-10 inBaton Rouge, LA	I-10/I-59 inSlidell, LA	01967-01-011967	current	Louisiana only
I-14	25.10	40.39	US 190 &US 190 Bus. inI-35/US 190 inBelton, TX	I-35/US 190 inBelton, TX	02017-01-262017	current	Unfinished in Texas; Texas only; planned in four more: Louisiana, Mississippi, Alabama, Georgia Planned associated routes:I-14N,I-14S, andI-214 in Texas
I-15	1,433.52	2,307.03	I-8 &SR 15 inSan Diego, CA	Highway 4 atSweetgrass, MT	01957-01-011957	current	Unfinished in California; serves six states:California,Nevada,Arizona,Utah,Idaho,Montana Associated routes:I-115,I-215,I-315
I-16	166.81	268.45	I-75/SR 540 inMacon, GA	Montgomery Street inSavannah, GA	01966-01-011966	current	Georgia only Associated route:I-516
I-17	145.93	234.85	I-10/US 60 inPhoenix, AZ	I-40/SR 89A inFlagstaff, AZ	01961-01-011961	current	Arizona only
I-19	63.43	102.08	I-19 BL inNogales, AZ	I-10 inTucson, AZ	01972-01-011972	current	Arizona only Useskilometers instead of miles
I-20	1,539.38	2,477.39	I-10 inReeves County, TX	I-95 &I-20 Bus. inFlorence, SC	01957-01-011957	current	Serves six states:Texas,Louisiana,Mississippi,Alabama,Georgia,South Carolina Associated routes:I-220,I-520,I-820
I-22	202.22	325.44	I-269/US 78/MS 304 inByhalia, MS	I-65 inBirmingham, AL	02012-01-012012	current	Unfinished in Alabama; serves two states: Mississippi, Alabama Planned associated routes:I-222 andI-422 in Alabama
I-24	316.36	509.13	I-57 inPulley's Mill, IL	I-75/US 74 inEast Ridge, TN	01962-01-011962	current	Serves four states: Illinois, Kentucky, Tennessee, Georgia Associated route:I-124
I-25	1,061.67	1,708.59	I-10/US 85/US 180 inLas Cruces, NM	I-90/US 87 inBuffalo, WY	01957-01-011957	current	Serves three states:New Mexico,Colorado,Wyoming Associated route:I-225
I-26	328.09	528.01	US 11W/US 23 inKingsport, TN I-40/I-240/US 74 inAsheville, NC	US 19/US 23 south ofForks of Ivy, NC US 17 inCharleston, SC	01960-01-011960	current	Unfinished in North Carolina; serves three states:Tennessee,North Carolina,South Carolina Associated routes:I-126,I-526
I-27	128.332	206.530	US 87 inLubbock, TX	I-40/US 60/US 87/US 287 inAmarillo, TX	01969-01-011969	current	Unfinished in Texas; Texas only; planned in one more: New Mexico; Planned associated routes in Texas:I-27E,I-27W,I-27N[3]
I-29	750.58	1,207.94	I-35/I-70/US 24/US 40/US 71 inKansas City, MO	PTH 75 atPembina, ND	01958-01-011958	current	Serves four states:Missouri,Iowa,South Dakota,North Dakota Associated routes:I-129,I-229
I-30	366.76	590.24	I-20 northeast ofAledo, TX	I-40/US 65/US 67/US 167/AR 107 inNorth Little Rock, AR	01957-01-011957	current	Serves two states: Texas, Arkansas Associated routes:I-430,I-530,I-630
I-31	—	—	I-94 inFargo, ND	US 81 &PTH 75 atPembina, ND	01957-01-011957	01958-01-011958	Served North Dakota only Replaced by a northward extension of I-29
I-35	1,569.06	2,525.16	US 83 inLaredo, TX I-35W &I-35E inDenton, TX I-35W &I-35E inColumbus, MN	I-35W & I-35E inHillsboro, TX I-35W & I-35E inBurnsville, MN MN 61 inDuluth, MN	01956-01-011956	current	Serves six states:Texas,Oklahoma,Kansas,Missouri,Iowa,Minnesota Associated routes:I-35E,I-35W,I-135,I-235,I-335,I-435,I-535,I-635
I-37	143.00	230.14	US 181/SH 35 inCorpus Christi, TX	I-35/US 281 inSan Antonio, TX	01959-01-011959	current	Texas only
I-39	306.14	492.68	I-55/US 51 inNormal, IL	US 51/WIS 29 west ofRothschild, WI	01984-01-011984	current	Serves two states: Illinois, Wisconsin
I-40	2,556.61	4,114.46	I-15 inBarstow, CA	US 117 inWilmington, NC	01957-01-011957	current	Serves eight states:California,Arizona,New Mexico,Texas,Oklahoma,Arkansas,Tennessee,North Carolina Associated routes:I-140,I-240,I-440,I-540,I-640,I-840
I-41	175.00	281.64	I-94/US 41 inRussell, IL	I-43/US 41/US 141 inHoward, WI	02015-01-012015	current	Serves two states: Illinois, Wisconsin
I-42	190	310	I-35 inNoble County, OK	I-49 inSpringdale, AR	proposed	—	Future Interstate; will serve two states: Oklahoma, Arkansas
I-42	31.5	50.7	I-40/NC 540 southeast ofGarner, NC US 70 inGoldsboro, NC	US 70/US 70 Bus. southeast ofClayton, NC US 70 inLa Grange, NC	02024-01-012024	current	Unfinished in North Carolina; North Carolina only
I-43	191.55	308.27	I-39/I-90 inBeloit, WI	I-41/US 41/US 141 inHoward, WI	01981-01-011981	current	Wisconsin only
I-44	636.69	1,024.65	US 82/US 277/US 281/US 287 inWichita Falls, TX	I-70 inSt. Louis, MO	01958-01-011958	current	Serves three states:Texas,Oklahoma,Missouri Associated routes:I-244,I-344,I-444
I-45	284.91	458.52	SH 87/Spur 342 inGalveston, TX	I-30/I-345/US 67 inDallas, TX	01971-01-011971	current	Texas only Associated route:I-345
I-49	547.52	881.15	I-10/US 167/LA 182 inLafayette, LA I-220 inShreveport, LA I-40/US 71 atAlma, AR	I-20 inShreveport, LA US 59/US 71 inTexarkana, AR I-435/I-470/US 50/US 71 inKansas City, MO	01984-01-011984	current	Unfinished in Arkansas and Louisiana; serves three states:Louisiana,Arkansas,Missouri; planned in one more: Texas
I-55	964.25	1,551.81	I-10 inLaPlace, LA	US 41 inChicago, IL	01960-01-011960	current	Serves six states:Louisiana,Mississippi,Tennessee,Arkansas,Missouri,Illinois Associated routes:I-155,I-255,I-355,I-555
I-57	508.92	819.03	I-40/US 67/US 167 inNorth Little Rock, AR I-55/US 60 inSikeston, MO	US 67/US 412/US 412B inWalnut Ridge, AR I-94 inChicago, IL	01965-01-011965	current	Unfinished in Missouri and Arkansas; serves three states: Arkansas, Missouri, Illinois.
I-59	445.23	716.53	I-10/I-12 inSlidell, LA	I-24 inWildwood, GA	01960-01-011960	current	Serves four states: Louisiana, Mississippi, Alabama, Georgia Associated routes:I-359,I-459,I-759
I-64	963.52	1,550.64	I-70/US 40/US 61 inWentzville, MO	I-264/I-664/US 13/US 58/US 460 inChesapeake, VA	01961-01-011961	current	Serves six states:Missouri,Illinois,Indiana,Kentucky,West Virginia,Virginia Associated routes:I-264,I-464,I-564,I-664
I-65	887.30	1,427.97	I-10 inMobile, AL	US 12/US 20 inGary, IN	01958-01-011958	current	Serves four states:Alabama,Tennessee,Kentucky,Indiana Associated routes:I-165,I-265,I-465,I-565,I-865; Planned:I-365 in Kentucky
I-66	—	—	Wichita, KS	NearPikeville, KY	01991-01-011991	02015-01-012015[4]	Served four states: Kansas, Missouri, Illinois, Kentucky Associated routes: I-66 Spur in Kentucky The project was unpopular and ultimately cancelled without the interstate being completed; I-66 Spur eventually becameI-165
I-66	76.28	122.76	I-81 southwest ofMiddletown, VA	US 29 inWashington, D.C.	01961-01-011961	current	Serves DC and one state: Virginia
I-68	113.15	182.10	I-79 inMorgantown, WV	I-70/US 40/US 522 inHancock, MD	01991-01-011991	current	Serves two states: West Virginia, Maryland
I-69	910.10	1,464.66	US 59 inRosenberg, TX MS 713 southwest ofBanks, MS US 51 inFulton, KY US 41 inEvansville, IN	US 59 inSplendora, TX US 51 inMemphis, TN US 41 inHenderson, KY Hwy 402 atPort Huron, MI	01957-01-011957	current	Unfinished in Texas, Mississippi, Tennessee, Kentucky, and Indiana; serves six states:Texas,Mississippi,Tennessee,Kentucky,Indiana,Michigan Planned/started in 2 more:Louisiana,Arkansas Associated routes:I-69C,I-69E,I-69W,I-169,I-269,I-369,I-469; Planned:I-569 in Kentucky
I-70	2,171.71	3,495.03	I-15 inCove Fort, UT	I-695 inWoodlawn, MD	01956-01-011956	current	Serves 10 states:Utah,Colorado,Kansas,Missouri,Illinois,Indiana,Ohio,West Virginia,Pennsylvania,Maryland Associated routes:I-170,I-270,I-370,I-470,I-670
I-71	345.57	556.14	I-64/I-65 inLouisville, KY	I-90 &I-490 inCleveland, OH	01959-01-011959	current	Serves two states: Kentucky, Ohio Associated routes:I-271,I-471
I-72	179.29	288.54	US 36/US 36 Bus./US 61 (Avenue of the Saints)/Route 110 (CKC) inHannibal, MO	University Avenue & Church Street inChampaign, IL	01970-01-011970	current	Serves two states: Missouri, Illinois Associated route:I-172
I-73	101.10	162.70	I‑74/US 74/US 74 Bus. west ofRockingham, NC	US 220/NC 68 northeast ofStokesdale, NC	01997-01-011997	current	Unfinished in North Carolina;North Carolina only; planned in five more:South Carolina,Virginia, West Virginia, Ohio, Michigan
I-74	541.62	871.65	I-80 inDavenport, IA I-77 at theVirginia state line northwest ofPine Ridge, NC I-40 inWinston-Salem, NC US 74 Alt./US 74 Bus. inMaxton, NC	I-75/US 52 inCincinnati, OH US 52 inMount Airy, NC US 74 Bus. northwest ofHamlet, NC US 74 southwest ofLumberton, NC	01974-01-011974	current	Unfinished in Ohio and North Carolina; serves five states:Iowa,Illinois,Indiana,Ohio,North Carolina; planned in three more: West Virginia, Virginia, South Carolina Associated routes:I-474; Planned:I-274 in North Carolina
I-75	1,786.47	2,875.04	SR 826/SR 924 inMiami Lakes, FL	International Bridge atSault Ste. Marie, MI	01958-01-011958	current	Serves six states:Florida,Georgia,Tennessee,Kentucky,Ohio,Michigan Associated routes:I-175,I-275,I-375,I-475,I-575,I-675
I-76	187.29	301.41	I-70 inArvada, CO	I-80 atBig Springs, NE	01975-01-011975	current	Serves two states: Colorado, Nebraska
I-76	435.66	701.13	I-71/US 224 inWestfield Township, OH	I-295/Route 42 inBellmawr, NJ	01964-01-011964	current	Serves three states:Ohio,Pennsylvania,New Jersey Associated routes:I-176,I-276,I-376,I-476,I-676
I-77	610.10	981.86	I-26 inCayce, SC	I-90 inCleveland, OH	01958-01-011958	current	Serves five states:South Carolina,North Carolina,Virginia,West Virginia,Ohio Associated route:I-277
I-78	146.28	235.41	I-81 inUnion Township, PA	Canal Street inNew York, NY	01957-01-011957	current	Serves three states:Pennsylvania,New Jersey,New York Associated routes:I-278,I-478,I-678,I-878
I-79	343.46	552.75	I-77 inCharleston, WV	PA 5/PA 290/Bayfront Parkway inErie, PA	01967-01-011967	current	Serves two states: West Virginia, Pennsylvania Associated routes:I-279,I-579
I-80	2,900.76	4,668.32	US 101 inSan Francisco, CA	I-95 inTeaneck, NJ	01956-01-011956	current	Serves 11 states:California,Nevada,Utah,Wyoming,Nebraska,Iowa,Illinois,Indiana,Ohio,Pennsylvania,New Jersey Associated routes:I-180,I-238,I-280,I-380,I-480,I-580,I-680,I-780,I-880,I-980
I-81	855.02	1,376.02	I-40 inDandrige, TN	Hwy 137 atWellesley Island, NY	01961-01-011961	current	Serves six states:Tennessee,Virginia,West Virginia,Maryland,Pennsylvania,New York Associated routes:I-381,I-481,I-581,I-781
I-82	143.58	231.07	I-90/US 97 inEllensburg, WA	I-84/US 30 inHermiston, OR	01957-01-011957	current	Serves two states: Washington, Oregon Associated route:I-182
I-82	—	—	I-81/I-84/US 6 inScranton, PA	I-95 inTeaneck, NJ	01957-01-011957	01958-01-011958	Served two states: Pennsylvania, New Jersey Was the initial designation to what is nowI-380 andI-80
I-82	—	—	I-84 inEast Hartford, CT	Providence, RI	01956-01-011956	01968-01-011968	Served one state: Connecticut, was planned for one state: Rhode Island Redesignated as I-84 in 1968
I-83	85.03	136.84	President Street & Fayette Street inBaltimore, MD	I-81/US 322 north ofProgress, PA	01959-01-011959	current	Serves two states: Maryland, Pennsylvania Associated route:I-283
I-84	769.62	1,238.58	I-5/US 30 inPortland, OR	I-80/US 189 inEcho, UT	01980-01-011980	current	Serves three states:Oregon,Idaho,Utah Associated route:I-184
I-84	232.71	374.51	I-81/I-380/US 6 inDunmore, PA	I-90/Massachusetts Turnpike inSturbridge, MA	01963-01-011963	current	Serves four states:Pennsylvania,New York,Connecticut,Massachusetts Associated routes:I-384,I-684
I-85	666.05	1,071.90	I-65/US 82 inMontgomery, AL	I-95/US 460 inPetersburg, VA	01958-01-011958	current	Unfinished in Alabama; serves five states:Alabama,Georgia,South Carolina,North Carolina,Virginia Associated routes:I-185,I-285,I-385,I-485,I-585,I-785,I-885,I-985; Future/Planned:I-685 in bothAlabama andNorth Carolina
I-86	62.85	101.15	I-84/US 30 northeast ofDeclo, ID	I-15 inChubbuck, ID	01980-01-011980	current	Idaho only
I-86	254.02	408.81	I-90 inGreenfield Township, PA I-81/NY 17/NY 990G inKirkwood, NY	NY 17/NY 26 inVestal, NY NY 17/NY 79 inWindsor, NY	01999-01-011999	current	Unfinished in New York; serves two states: Pennsylvania, New York
I-86	38.97	62.72	I-84 inEast Hartford, CT	I-90 inSturbridge, MA	01968-01-011968	01984-01-011984	Served two states: Connecticut, Massachusetts Redesignated as I-84 in 1984 when the I-84 Hartford-Providence corridor was cancelled
I-87	12.90	20.76	I-40/I-440/US 64 inRaleigh, NC	US 64/US 264 inWendell, NC	02017-01-012017	current	Unfinished in North Carolina; North Carolina only; planned in one more: Virginia Associated route:I-587
I-87	333.49	536.70	I-278 inPort Morris, NY	A-15 atChamplain, NY	01957-01-011957	current	New York only Associated routes:I-287,I-587,I-787
I-88	140.60	226.27	I-80/IL 5/IL 92/Route 110 (CKC) northeast ofEast Moline, IL	I-290/Route 110 (CKC) inHillsdale, IL	01987-01-011987	current	Illinois only
I-88	117.75	189.50	I-81 inChenango, NY	I-90/New York State Thruway inRotterdam, NY	01968-01-011968	current	New York only
I-89	191.12	307.58	I-93/Everett Turnpike/NH 3A inBow, NH	Route 133 atHighgate, VT	01960-01-011960	current	Serves two states: New Hampshire, Vermont Associated route:I-189
I-90	3,099.74	4,988.55	SR 519 inSeattle, WA	Route 1A inBoston, MA	01956-01-011956	current	Serves 13 states:Washington,Idaho,Montana,Wyoming,South Dakota,Minnesota,Wisconsin,Illinois,Indiana,Ohio,Pennsylvania,New York,Massachusetts Associated routes:I-190,I-290,I-390,I-490,I-590,I-690,I-790,I-890,I-990 Longest Interstate highway
I-91	290.37	467.31	I-95 inNew Haven, CT	A-55 atDerby Line, VT	01958-01-011958	current	Serves three states: Connecticut, Massachusetts, Vermont Associated routes:I-291,I-391,I-691
I-93	189.95	305.69	I-95/US 1/Route 128 inCanton, MA	I-91 inWaterford, VT	01957-01-011957	current	Serves three states:Massachusetts,New Hampshire,Vermont Associated routes:I-293,I-393
I-94	1,555.43	2,503.22	I-90/US 87/US 212 inLockwood, MT	Highway 402 atPort Huron, MI	01956-01-011956	current	Serves seven states:Montana,North Dakota,Minnesota,Wisconsin,Illinois,Indiana,Michigan Associated routes:I-194,I-294,I-394,I-494,I-694,I-794,I-894
I-95	1,905.96	3,067.35	US 1 inMiami, FL	Route 95 atHoulton, ME	01957-01-011957	current	ServesDC and 15 states:Florida,Georgia,South Carolina,North Carolina,Virginia,Maryland,Delaware,Pennsylvania,New Jersey,New York,Connecticut,Rhode Island,Massachusetts,New Hampshire,Maine Associated routes:I-195,I-295,I-395,I-495,I-595,I-695,I-795,I-895 Longest primary north-south Interstate highway
I-96	192.032	309.046	US 31 inNorton Shores, MI	I-75 inDetroit, MI	01959-01-011959	current	Michigan only Associated routes:I-196,I-296,I-496,I-696
I-97	17.62	28.36	US 50/US 301 inParole, MD	I-695/I-895A inBrooklyn Park, MD	01987-01-011987	current	Maryland only
I-99	161.68	260.20	US 220/US 220 Bus. north ofBedford, PA I-180/US 15/US 220 inWilliamsport, PA	US 220/PA 26 northeast ofBellefonte, PA I-86/US 15/NY 17/NY 352 atPainted Post, NY	01998-01-011998	current	Unfinished in Pennsylvania; serves two states: Pennsylvania,New York
Former       Proposed and unbuilt

In addition to the 48 contiguous states, Interstate Highways are found in Hawaii, Alaska, and Puerto Rico. TheFederal Highway Administration funds four routes inAlaska and three routes inPuerto Rico under the same program as the rest of the Interstate Highway System. However, these routes are not required to meet the same standards as the mainland routes:

Highways on the Interstate System in Alaska and Puerto Rico shall be designed in accordance with such geometric and construction standards as are adequate for current and probable future traffic demands and the needs of the locality of the highway.^[5]

Map of Hawaii's Interstate Highways (excluding H-201)

The Interstate Highways on the island ofOʻahu,Hawaii are signed with the standard Interstate Highway shield, with the letter "H-" prefixed before the number. They are fully controlled-access routes built to the same standards as the mainland Interstate Highways.

Number	Length (mi)[2]	Length (km)	Southern or western terminus	Northern or eastern terminus	Formed	Removed	Notes
H-1	27.16	43.71	Route 93 inKapolei	Route 72 inHonolulu	01960-01-011960	current	Associated route:H-201
H-2	8.33	13.41	H-1 inPearl City	Route 99 inWahiawa	01960-01-011960	current
H-3	15.32	24.66	H-1/H-201 inHalawa	Marine Corps Base Hawaii	01997-01-011997	current

Map of Alaska's Interstate Highways

Alaska's Interstate Highways are unsigned as such, although they all have state highway numbers that do not match the Interstate Highway numbers.^[6]

Number	Length (mi)[2]	Length (km)	Southern or western terminus	Northern or eastern terminus	Formed	Removed	Notes
A-1	408.23	656.98	Anchorage	Hwy. 1 atAlcan Border	01976-01-011976	current	Glenn Highway,Richardson Highway,Tok Cut-Off,Alaska Highway[7][8][9][10]
A-2	202.18	325.38	Tok	Fairbanks	01976-01-011976	current	Alaska Highway,Richardson Highway[8][9][10]
A-3	148.12	238.38	Anchorage	Soldotna	01976-01-011976	current	Seward Highway,Sterling Highway[7][9][10]
A-4	323.69	520.93	Gateway,nearPalmer	Fairbanks	01976-01-011976	current	Parks Highway[7][8][9][10]

Puerto Rico signs its Interstate Highways as territorial routes, as the numbers do not match their official Interstate Highway designations. Many of the territory's routes arefreeway-standardtoll roads.^[11]

Number	Length (mi)[2]	Length (km)	Southern or western terminus	Northern or eastern terminus	Formed	Removed	Notes
PR-1	71.08	114.39	PR-2 inPonce	PR-2 inSan Juan	01976-01-011976	current	FollowsPR-52
PR-2	138.13	222.30	PR-1 inPonce	PR-3 inSan Juan	01976-01-011976	current	FollowsPR-22
PR-3	40.56	65.27	PR-3 inHumacao	PR-2 inSan Juan	01976-01-011976	current	FollowsPR-66

• U.S. Roads portal

• Geographic data related toList of primary Interstate Highways atOpenStreetMap
• Alaska Roads - Interstate ends photos
• Puerto Rico road photos
• The Dwight D. Eisenhower National System of Interstate and Defense Highways Route Log and Finder List
• 3-digit Interstate Highways

• Interstate Highway System
• Lists of Interstate Highways

• Articles with short description
• Short description is different from Wikidata
• Use American English from July 2025
• All Wikipedia articles written in American English
• Use mdy dates from August 2013
• Pages using the Kartographer extension