List of Iowa state highways

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Standard Iowa Highway shields
State:	Highway X (IA X or Iowa X)
Interstates:	Interstate X (I-X)
US Routes:	U.S. Highway X (US X)
Notes:	Iowa state highways are generally state-maintained.

Iowa DOT use the standard cicle sign shield for its state highways. 24 × 24 inch or 36 × 36 inch signs are used for all state and U.S. Highways regardless of number of digits. Iowa uses the same system as North Carolina when it comes to font usage — instead of the circle getting bigger, the font of the numbers gets smaller as more digits are added. The table below describes font usage in the state. Interstate route signage follows Interstate marker standards — using wider shields for 3-digit routes. Font type for Interstate markers is type D — sized to fit the shield. All Iowa interstate shields include the state name on the shields. ^[1]

Standard font types for Iowa state, U.S. Route, and Interstate highway shields^[1][2]

Shield type	One digit	Two digits	Three digits
Interstate	none
U.S. highway
State highway

Contents 1 List of current routes 1.1 Interstate highways 1.2 U.S. Highways 1.3 Iowa state highways 2 Former highways 3 County highways 4 References 5 External links

[edit] List of current routes

[edit] Interstate highways

Route	South or west terminus	North or east terminus	Length (mi)[3]
I-29	I-29 at Hamburg	I-29 at Sioux City	154.75
I-35	I-35 near Lamoni	I-35 near Albert Lea, MN	218.33
I-74	I-80 at Davenport	I-74 at Bettendorf	5.36
I-80	I-80 at Council Bluffs	I-80 at Le Claire	303.23
I-129	I-129 at Sioux City	I-29 at Sioux City	0.27
I-235	I-35 / I-80 at West Des Moines	I-35 / I-80 at Des Moines	13.78
I-280	I-80 at Davenport	I-280 at Rock Island, IL	9.38
I-380	I-80 / US 218 / IA 27 near Coralville	US 218 at Waterloo	73.05
I-480	I-480 at Council Bluffs	US 6 at Council Bluffs	0.75
I-680	I-680 at Omaha, NE	I-80 near Neola	29.54
Total length			808.44

[edit] U.S. Highways

Route	South or west terminus	North or east terminus	Length (mi)[4]
US 6	US 6 at Council Bluffs	US 6 at Bettendorf	317
US 18	US 18 near Canton, SD	US 18 at Marquette	306
US 20	US 20 at Sioux City	US 20 at Dubuque	325
US 30	US 30 at Blair, NE	US 30 at Clinton	332
US 34	US 34 at Plattsmouth, NE	US 34 at Burlington	262
US 52	US 52 at Sabula	US 52 near Prosper, MN	164
US 59	US 59 near Shenandoah	US 59 near Bigelow, MN	215
US 61	US 61 near Keokuk	US 61 at Dubuque	192
US 63	US 63 near Lancaster, MO	US 63 near Chester	236
US 65	US 65 at Lineville	US 65 near Northwood	222
US 67	US 67 at Davenport	US 52 / IA 64 near Sabula	56
US 69	US 69 near Lamoni	US 69 at Emmons, MN	228
US 71	US 71 at Braddyville	US 71 near Superior	236
US 75	US 75 at Sioux City	US 75 near Rock Rapids	80
US 77	US 77 at Sioux City	I-29 at Sioux City	0.4
US 136	US 136 near Keokuk	US 136 at Keokuk	3.6
US 151	I-80 near the Amana Colonies	US 151 at Dubuque	108
US 169	US 169 near Redding	US 169 at Elmore, MN	235
US 218	US 136 at Keokuk	US 218 at Lyle, MN	272
US 275	US 275 at Hamburg	US 275 at Council Bluffs	59
Total length			3849

[edit] Iowa state highways

Route	South or west terminus	North or east terminus	Length (mi)	Notes
IA 1	IA 2 near Keosauqua	US 151 near Anamosa	120.32
IA 2	N-2 near Nebraska City, NE	IL 9 at Fort Madison	258.51
IA 3	SD 50 near Westfield	US 52 / US 61 / US 151 at Dubuque	327.81
IA 4	IA 44 at Panora	TH 4 near Estherville	146.38
IA 5	Route 5 near Cincinnati	I-35 at West Des Moines	104.80
IA 7	IA 3 near Aurelia	US 169 near Fort Dodge	73.59
IA 8	US 63 at Traer	US 218 near Garrison	13.95
IA 9	SD 42 near Larchwood	WIS 82 at Lansing	295.70
IA 10	SD 46 near Hawarden	IA 4 at Havelock	104.53
IA 12	I-29 at Sioux City	IA 10 at Hawarden	46.05
IA 13	US 30 / US 151 near Bertram	US 52 near Froelich	85.20
IA 14	IA 2 at Corydon	US 18 / US 218 Bus. at Charles City	187.94
IA 15	IA 3 near Pocahontas	TH 15 near Armstrong	63.56
IA 16	US 34 near Agency	US 61 at Wever	65.18
IA 17	IA 141 at Granger	US 18 near Wesley	102.89
IA 21	IA 149 near Hedrick	US 20 at Waterloo	97.19
IA 22	IA 21 near Thornburg	US 61 at Davenport	95.42
IA 23	IA 92 near Oskaloosa	IA 149 near Fremont	15.92
IA 24	US 18 / US 63 at New Hampton	US 52 / IA 150 at Calmar	26.22
IA 25	IA 2 near Benton	US 30 near Scranton	103.41
IA 26	IA 9 at Lansing	TH 26 – New Albin	11.24
IA 27	Route 27 at St. Francisville, MO	I-35 at the Minnesota state line	281.36
IA 28	IA 92 at Martensdale	I-35 / I-80 at Des Moines	21.73
IA 31	US 59 near Quimby	IA 141 near Smithland	38.48
IA 32	US 20 at Dubuque	US 52 / IA 3 at Sageville	5.1
IA 37	IA 175 near Turin	US 59 near Earling	40.33
IA 38	IA 92 at Muscatine	IA 3 near Edgewood	98.84
IA 39	US 59 at Denison	IA 175 at Odebolt	24.34
IA 44	US 30 near Logan	IA 141 at Grimes	104.54
IA 48	US 59 at Shenandoah	US 6 near Lewis	47.91
IA 51	US 18 at Postville	IA 9 at Waukon	10.94
IA 56	IA 150 at West Union	IA 13 at Elkader	24.48
IA 57	US 65 near Iowa Falls	US 218 / IA 27 / IA 58 at Cedar Falls	40.34
IA 58	US 63 at Hudson	US 218 / IA 27 / IA 57 at Cedar Falls	11.97
IA 60	US 75 at Le Mars	TH 60 at Bigelow, MN	56
IA 62	IA 64 at Maquoketa	US 52 at Bellevue	19.64
IA 64	US 151 near Anamosa	IL 64 at Savanna, IL	64.26
IA 70	IA 92 at Columbus Junction	US 6 near West Liberty	24.01
IA 76	US 18 near McGregor	TH 76 near Eitzen, MN	51.93
IA 78	IA 149 near Martinsburg	US 61 near Morning Sun	58.58
IA 81	Route 81 near Farmington	IA 2 at Farmington	2.23
IA 83	US 59 at Avoca	IA 148 at Anita	34.19
IA 85	Montezuma city limits	IA 21 at Deep River	8.43
IA 86	US 71 near Milford	TH 86 near Spirit Lake	12.65
IA 92	N-92 at Council Bluffs	IL 92 at Muscatine	274.48
IA 93	US 63 near Tripoli	IA 150 at Fayette	29.55
IA 96	IA 14 near Gladbrook	US 63 near Gladbrook	16.65
IA 98	IA 16 near Douds	Clay Street in Leando	1.78	Spur route.
IA 100	Edgewood Road – Cedar Rapids	US 151 / IA 13 near Marion	8.30
IA 102	New Sharon western city limits[5]	US 63 / IA 146 at New Sharon	0.50	Formerly extended to Pella.
IA 107	Meservey southern city limits	Meservey northern city limits[6]	0.58	Discontinuous segment in city limits.
	Thornton western city limits	Thornton northern city limits[7]	1.46	Discontinuous segment in city limits.
IA 110	US 20 at Schaller	IA 7 at Storm Lake	14.80
IA 116	US 218 near Waverly	IA 3 at Waverly	2.62	US 218 Bus. in Waverly.
IA 117	US 163 at Prairie City	US 65 IA 330 near Mingo	18.46
IA 122	I-35 / US 18 at Clear Lake	Mason City city limits	12.36
IA 127	I-29 near Mondamin	US 30 at Logan	16.04
IA 128	IA 13 at Elkader	US 52 near Garnavillo	7.03
IA 130	IA 38 at Tipton	I-80 at Davenport	31.98
IA 136	IL 136 at Clinton	US 52 / IA 3 at Luxemburg	97.86
IA 137	IA 5 at Albia	US 63 at Eddyville	14.41
IA 139	IA 9 near Cresco	TH 139 near Harmony, MN	11.45
IA 140	US 20 at Moville	IA 3 at Remsen	25.36
IA 141	I-29 at Sloan	I-35 / I-80 at Grimes	155.59
IA 143	IA 3 at Marcus	IA 10 at Granville	12.03
IA 144	IA 141 at Perry	IA 175 near Harcourt	34.08
IA 146	US 63 at New Sharon	US 30 at Le Grand	42.73
IA 148	Route 148 near Bedford	I-80 near Anita	66.87
IA 149	US 34 / US 63 at Ottumwa	I-80 near Williamsburg	66.16
IA 150	US 218 at Vinton	US 52 / IA 24 at Calmar	85.14
IA 152	I-35 near Osceola	US 69 near Osceola	1.38
IA 160	IA 415 at Ankeny	I-35 at Ankeny	2.42
IA 163	US 69 at Des Moines	US 63 at Oskaloosa	61.09
IA 165	Nebraska state line at Carter Lake	Nebraska state line at Carter Lake	0.46	Only route west of the Missouri River.
IA 173	IA 83 near Atlantic	IA 44 at Kimballton	14.69
IA 175	N-51 at Decatur, NE	US 63 at Hudson	221.23
IA 182	US 18 at Inwood	IA 9 near Larchwood	9.07
IA 183	IA 127 at Mondamin	IA 141 at Ute	29.51
IA 187	US 20 near Masonville	IA 150 near Fayette	28.43
IA 188	IA 3 near Clarksville	US 63 near Tripoli	24.24
IA 191	I-680 near Neola	IA 37 at Earling	22.65
IA 192	I-29 / I-80 at Council Bluffs	I-29 at Council Bluffs	5.24
IA 196	US 71 / IA 175 at Lake View	US 20 near Sac City	7.81
IA 202	Route 202 near Coatsville, MO	IA 2 near Moulton	10.47
IA 210	IA 141 near Woodward	US 65 near Collins	34.86
IA 212	IA 21 near Belle Plaine	US 6 at Marengo	12.23
IA 220	US 6 at South Amana	US 151 at Amana	7.24
IA 224	I-80 near Kellogg	IA 14 near Laurel	10.53
IA 281	Waterloo	IA 150 at Oelwein	28.12
IA 296	Norwalk city limits	IA 28 at Norwalk	0.29	Former IA 28.[8]
IA 316	IA 5 near Swan	near Runnells	5.86	Spur route.
IA 330	US 65 / IA 117 near Mingo	IA 14 near Albion	33.45
IA 333	I-29 at Hamburg	US 275 at Hamburg	1.55
IA 346	US 218 / IA 27 at Nashua	US 18 / US 63 near New Hampton	12.10
IA 370	N-370 at Bellevue, NE	I-29 near Council Bluffs	3.19
IA 376	I-29 at Sioux City	US 75 at Sioux City	10.0	US 75 Bus. in Sioux City.
IA 404	IA 3 at Le Mars	US 75 / IA 60 at Le Mars	3.32	US 75 Bus. in Le Mars.
IA 415	US 6 at Des Moines	IA 141 near Granger	17.28
IA 438	US 34 at Mount Pleasant	US 218 / IA 27 at Mount Pleasant	0.7	Former US 218/IA 27.[9]
IA 922	US 151 at Cedar Rapids	IA 100 at Cedar Rapids	8.82	US 151 Bus. in Cedar Rapids.
IA 926	US 169 at Fort Dodge	US 169 at Fort Dodge	3.17	US 169 Bus. in Fort Dodge.
IA 930	US 30 near Ames near Ames	Boone / Story County line	1.79	Spur route.
IA 934	IA 27 / IA 58 at Cedar Falls	US 63 at Waterloo	4.82	University Avenue.[10][11]
IA 946	US 52 / US 61 / US 151 at Dubuque	US 52 / US 61 / US 151 at Dubuque	0.96	Provides direct access to US 20.[12]
IA 965	US 6 at Coralville	I-80 at Coralville	0.40	Provides direct access to I-80.[13]
Total length			5,115.73

[edit] Former highways

On April 17, 2003, the Iowa Senate introduced a bill, Senate File 451^[14], which sought to turn over control of highways under state jurisdiction which generally provided service to local areas.^[15] The bill was passed by the Senate and House and was signed by Governor Tom Vilsack on May 23, 2003^[16]. Senate File 451 made it possible for the Iowa DOT to turn over highways to local control without the customary agreements before the transfer as required in Iowa Code 2003 Section 306.8^[17]. Over 600 miles (970 km) of state highways, mostly short spur routes and segments bypassed after new construction, were turned over to county or municipal governments on July 1, 2003.

[edit] County highways

Iowa's county highways use the standard pentagon shield and are maintained by county governments. County roads are numbered with a statewide grid system using letters and numbers. County roads running primarily east and west assigned letters (from north to south) A through J. County roads running primarily north and south are assigned letters (from west to east) K through Z. The letters I, O, Q and U are not used to avoid confusion with numbers and other letters.

[edit] References

[edit] External links

• The Iowa Highways Page
• Iowa Road Signs
• Iowa DOT - Office of Transportation Data

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