| Iowa Primary Highway System | |
|---|---|
| Highways that changed jurisdiction in 2003 | |
| System information | |
| Notes | Primary highways in Iowa are generally state-maintained. |
| Highway names | |
| Interstates | Interstate X (I-X) |
| US Highways | U.S. Highway X (US X) |
| State | Highway X (IA X or Iowa X) |
| System links | |
On July 1, 2003, the Iowa Department of Transportation transferred control of more than 700 miles (1,100 km) of highway to county and local governments in order to save money and to increase operational efficiency. Most of the highways turned over were short spurs connecting small, rural communities and state parks to the highway system.
Background
Starting in 1979, staff members with the Iowa Department of Transportation (DOT) along with county and municipal officials began to reclassify every mile of Iowa's 113,000-mile (182,000 km) public road system. These classification boards found that on the 10,000 highway miles (16,000 km) in the primary system, which comprises Interstate Highways, U.S. Highways, and state highways, nearly 1,000 miles (1,600 km) were minor highways that primarily served local traffic. Conversely, they found 400 miles (640 km) of major highways that were on the secondary system, which is made up of all rural roads not on the primary highway system. At the time, the Iowa Code provided a mechanism for the transfer of jurisdiction of roads within the state. The two sides would meet and if it was deemed that the road in question needed repairs, the relinquishing body would either make repairs or pay the accepting body the money needed to repair the roadway.
Most of the time, the DOT was able to come to an agreement with the county board of supervisors as 600 miles (970 km) of Iowa roads changed hands in the early 1980s. Some counties and the state could never come to an agreement, as was the case in Johnson County regarding Iowa Highway 979 (Iowa 979). The DOT wanted Johnson County to take over maintenance of the 6-mile-long (9.7 km) road and offered $160,000 to repair the road (equivalent to $400,000 in 2023), while the county wanted the state to take over another road. Both sides reached an impasse. Ultimately, Iowa 979 stayed under DOT control. During the 1990s, Iowa experienced a boom in highway construction bolstered by state appropriations from the National Highway System Designation Act of 1995. New four-lane highways were built all across the state, either by twinning an existing roadway or building new alignments in proximity to the old roads. After opening the new roads, these short segments often stayed on the primary highway system despite not serving an arterial purpose.
In 2002, the Road Use Tax Fund Committee, a mix of city, county, and state transportation officials, met to review and recommend changes to Iowa's public road system. The report was necessitated by increasing costs to maintain the highway system and a level of funding that was not keeping up with the rising costs. The committee identified over 700 miles (1,100 km) of state highways which could be turned over to local jurisdictions. Not wanting to repeat the impasses of the 1980s, the DOT got help from state legislature. The general assembly passed SF 451, which gave the DOT a one-time exemption from §306.8, which required the DOT to otherwise compensate a county for giving control of a road. Any roads identified by the Road Use Tax Fund Committee for which a transfer agreement pursuant to §306.8 had not been reached prior to July 1, 2003, would be summarily given to the respective counties without compensation. Even more, counties could not figure any roads offloaded to counties through this mechanism into the calculations for determining their road maintenance budgets for ten years.
Some counties were proactive with negotiating with the state. Early in 2003, it was not clear to county officials just how much money would be given to the counties for accepting roads from the state. This made the counties more amenable to accepting money for highways than in previous years. Taylor County officials negotiated a $4.7 million transfer (equivalent to $7.46 million in 2023) of Iowa 49 with the DOT, while Adams County officials did not. The DOT paid out $35 million (equivalent to $55.6 million in 2023) to counties before the July 1, 2003, deadline.
Routes affected
| Number | Length (mi) | Length (km) | Southern or western terminus | Northern or eastern terminus | Formed | Removed | Notes | |
|---|---|---|---|---|---|---|---|---|
 US 6
|
14.842 | 23.886 | I-80 near Dexter | US 169 in Adel | 01931-06-081931 | current | Rerouted over I-80 and US 169 | |
 Iowa 15
|
4.655 | 7.491 | Route 15 south of Milton | Iowa 2 at Milton | 01969-01-011969 | 02003-07-012003 | ||
 Iowa 36
|
2.983 | 4.801 | Wall Lake | US 71 / Iowa 175 at Wall Lake | 01920-07-011920 | 02003-07-012003 | ||
 Iowa 40
|
3.524 | 5.671 | Allerton | Iowa 2 near Corydon | 01926-07-011926 | 02003-07-012003 | ||
 Iowa 41
|
1.827 | 2.940 | Malvern | US 34 near Malvern | 01920-07-011920 | 02003-07-012003 | ||
 Iowa 45
|
1.324 | 2.131 | Manilla | Iowa 141 near Manilla | 01920-07-011920 | 02003-07-012003 | ||
 Iowa 49
|
27.228 | 43.819 | Iowa 2 at Bedford | US 34 near Lenox | 01920-07-011920 | 02003-07-012003 | ||
 Iowa 50
|
7.135 | 11.483 | US 169 near Fort Dodge | Lehigh | 01920-07-011920 | 02003-07-012003 | ||
 Iowa 55
|
4.506 | 7.252 | Seymour | Iowa 2 east of Promise City | 01934-01-011934 | 02003-07-012003 | ||
 Iowa 66
|
7.011 | 11.283 | Iowa 2 near Benton | Diagonal | — | 02003-07-012003 | ||
 Iowa 68
|
1.933 | 3.111 | Melrose | US 34 near Melrose | — | 02003-07-012003 | ||
 Iowa 77
|
2.685 | 4.321 | Iowa 92 near Keota | Keota | — | 02003-07-012003 | ||
 Iowa 79
|
5.637 | 9.072 | Geode State Park | US 34 in Middletown | 01980-07-011980 | 02003-07-012003 | ||
 Iowa 82
|
3.773 | 6.072 | Blairsburg | US 30 near Blairsburg | 01920-07-011920 | 02003-07-012003 | ||
 Iowa 83
|
14.562 | 23.435 | Iowa 191 at Neola | US 59 in Avoca | — | — | Remainder of route unchanged | |
 Iowa 91
|
4.643 | 7.472 | Iowa 9 near Little Rock | MN 91 near Ellsworth, Minn. | 01980-07-011980 | 02003-07-012003 | ||
 Iowa 94
|
11.168 | 17.973 | Palo | US 151 Business in Cedar Rapids | 01966-01-011966 | 02003-07-012003 | ||
 Iowa 97
|
1.532 | 2.466 | Russell | US 34 near Russell | — | 02003-07-012003 | ||
 Iowa 99
|
33.232 | 53.482 | US 34 in Burlington | US 61in Wapello | 01931-01-011931 | 02003-07-012003 | ||
 Iowa 102
|
15.401 | 24.786 | Iowa 163 at Pella | New Sharon city limits | 01980-07-011980 | 02003-07-012003 | Section within New Sharon limits remains | |
 Iowa 103
|
27.579 | 44.384 | US 218 / Iowa 27 near West Point | US 61 / Iowa 2 in Fort Madison | — | 02003-07-012003 | ||
 Iowa 107
|
27.579 | 44.384 | Iowa 3 near Alexander | US 18 in Clear Lake | 01920-07-011920 | 02011-06-302011 | Portions within Meservey and Thornton remained | |
 Iowa 109
|
1.268 | 2.041 | Oxford | US 6 near Oxford | — | 02003-07-012003 | ||
 Iowa 113
|
1.187 | 1.910 | Iowa 64 near Preston | Spragueville | 01938-01-011938 | 02003-07-012003 | Previous extended to Iowa 62 | |
 Iowa 115
|
1.237 | 1.991 | Viking Lake State Park | US 34 near Stanton | 01980-07-011980 | 02003-07-012003 | ||
 Iowa 124
|
2.567 | 4.131 | Iowa 4 | Twin Lakes State Park | 01924-01-011924 | 02003-07-012003 | ||
 Iowa 131
|
4.520 | 7.274 | Iowa 21 in Belle Plaine | US 30 near Belle Plaine | — | 02003-07-012003 | Section of Lincoln Highway | |
 Iowa 133
|
0.970 | 1.561 | US 30 at Nevada | Nevada | 01963-01-011963 | 02003-07-012003 | ||
 Iowa 142
|
20.901 | 33.637 | Iowa 2 at Plano | Iowa 5 at Moravia | 01980-07-011980 | 02003-07-012003 | ||
 Iowa 145
|
7.408 | 11.922 | I-29 near Thurman | US 275 near Sidney | 01931-01-011931 | 02003-07-012003 | ||
 Iowa 147
|
6.706 | 10.792 | Rockford | Iowa 14 near Roseville | — | 02003-07-012003 | ||
 Iowa 156
|
4.478 | 7.207 | Iowa 5 near Attica | Bussey | — | 02003-07-012003 | ||
 Iowa 157
|
1.032 | 1.661 | US 63 near Lime Springs | Lime Springs | — | 02003-07-012003 | ||
 Iowa 161
|
1.224 | 1.970 | Iowa 141 west of Dedham | Iowa 141 south of Dedham | — | 02003-07-012003 | ||
 Iowa 181
|
9.596 | 15.443 | Melcher-Dallas | Iowa 5 / Iowa 92 near Pleasantville | — | 02003-07-012003 | ||
 Iowa 183
|
31.143 | 50.120 | US 6 in Council Bluffs | Iowa 127 near Mondamin | 01930-01-011930 | current | Remainder of route unchanged | |
 Iowa 191
|
18.334 | 29.506 | US 6 at Council Bluffs | I-680 near Neola | 01930-01-011930 | current | Remainder of route unchanged | |
 Iowa 193
|
10.852 | 17.465 | US 18 near Alpha | Iowa 24 at Jackson Junction | — | 02003-07-012003 | ||
 Iowa 195
|
2.896 | 4.661 | Iowa 4 near Plover | Plover | — | 02003-02-182003 | ||
 Iowa 197
|
2.567 | 4.131 | Iowa 3 near Albert City | Albert City | — | 02003-07-012003 | ||
 Iowa 198
|
2.231 | 3.590 | Garrison | US 218 near Garrison, Iowa | — | 02003-07-012003 | ||
 Iowa 199
|
2.666 | 4.291 | US 30 near Van Horne | Van Horne | — | 02003-07-012003 | ||
 Iowa 200
|
2.163 | 3.481 | US 30 near Keystone | Keystone | — | 02003-07-012003 | ||
 Iowa 201
|
4.755 | 7.652 | Norway | US 30 near Norway | — | 02003-07-012003 | ||
 Iowa 204
|
5.407 | 8.702 | Iowa 2 near Leon | Garden Grove | — | 02003-07-012003 | ||
 Iowa 205
|
2.927 | 4.711 | US 65 near Milo | Milo | — | 02003-07-012003 | ||
 Iowa 206
|
6.221 | 10.012 | US 65 near Liberty Center | Lacona | — | 02003-07-012003 | ||
 Iowa 207
|
3.058 | 4.921 | I-35 near New Virginia | New Virginia | — | 02003-07-012003 | ||
 Iowa 214
|
5.736 | 9.231 | Iowa 175 near Ivester | Wellsburg | — | 02003-07-012003 | ||
 Iowa 215
|
8.738 | 14.062 | Union | Iowa 175 at Eldora | — | 02003-07-012003 | ||
 Iowa 221
|
3.909 | 6.291 | I-35 near Story City | Roland | — | 02003-07-012003 | ||
 Iowa 225
|
7.688 | 12.373 | Sully | Iowa 146 at Searsboro | — | 02003-07-012003 | ||
 Iowa 229
|
5.233 | 8.422 | Garwin | US 63 near Garwin | — | 02003-07-012003 | ||
 Iowa 231
|
4.068 | 6.547 | US 34 west of New London | US 34 east of New London | — | 02003-07-012003 | ||
 Iowa 238
|
1.063 | 1.711 | Iowa 9 near Harris | Harris | — | 02003-07-012003 | ||
 Iowa 239
|
0.510 | 0.821 | Waubonsie State Park | Iowa 2 near Sidney | 01931-01-011931 | 02003-07-012003 | ||
 Iowa 240
|
6.389 | 10.282 | Royal | US 71 near Greenville | — | 02003-07-012003 | ||
 Iowa 242
|
5.855 | 9.423 | US 34 near Glenwood | Silver City | — | 02003-07-012003 | ||
 Iowa 243
|
0.559 | 0.900 | Black Hawk Lake State Park | US 71 / Iowa 175 near Lake Park | 01980-01-011980 | 02003-07-012003 | ||
 Iowa 244
|
0.771 | 1.241 | I-80 near Neola | Iowa 191 in Neola | 01980-07-011980 | 02003-07-012003 | ||
 Iowa 249
|
0.665 | 1.070 | Iowa 78 near Winfield | Winfield | — | 02003-07-012003 | ||
 Iowa 252
|
0.584 | 0.940 | US 61 / Iowa 92 at Grandview | Grandview | — | 02003-07-012003 | ||
 Iowa 253
|
0.932 | 1.500 | Iowa 14 near Williamson | Williamson | — | 02003-07-012003 | ||
 Iowa 258
|
1.989 | 3.201 | I-35 at Van Wert | US 69 near Van Wert | — | 02003-07-012003 | ||
 Iowa 259
|
1.001 | 1.611 | US 169 near Tingley | Tingley | — | 02003-07-012003 | ||
 Iowa 263
|
12.511 | 20.135 | US 20 / Iowa 14 near Dike | US 20 near Cedar Falls | — | 02003-02-182003 | ||
 Iowa 266
|
1.709 | 2.750 | US 69 near Weldon | Weldon | — | 02003-07-012003 | ||
 Iowa 273
|
10.025 | 16.134 | Lake Wapello State Park | US 63 near Bloomfield | — | 02003-07-012003 | ||
 US 275
|
15.506 | 24.954 | US 34 in Glenwood | Iowa 92 at Council Bluffs | 01932-01-011932 | current | Remainder of route unchanged | |
 Iowa 276
|
4.711 | 7.582 | Iowa 327 in Spirit Lake | Minnesota state line near Mini-Wakan State Park | — | 02003-07-012003 | ||
 Iowa 279
|
1.983 | 3.191 | US 30 near Atkins | Atkins | — | 02003-07-012003 | ||
 Iowa 282
|
5.283 | 8.502 | Quasqueton | Iowa 939 near Winthrop | — | 02003-07-012003 | ||
 Iowa 283
|
5.861 | 9.432 | Brandon | Iowa 150 near Brandon | — | 02003-07-012003 | ||
 Iowa 285
|
0.796 | 1.281 | US 30 near Arcadia | Arcadia | — | 02003-07-012003 | ||
 Iowa 286
|
9.932 | 15.984 | US 30 at Glidden | Lanesboro | — | 02003-07-012003 | ||
 Iowa 287
|
1.833 | 2.950 | US 30 near Newhall | Newhall | — | 02003-07-012003 | ||
 Iowa 294
|
6.147 | 9.893 | Iowa 2 near Kellerton | Grand River | — | 02003-07-012003 | ||
 Iowa 297
|
3.543 | 5.702 | Gilbertville | Raymond | — | 02003-07-012003 | ||
 Iowa 299
|
5.556 | 8.942 | New Providence | Iowa 175 near Eldora | — | 02003-07-012003 | ||
 Iowa 300
|
1.411 | 2.271 | Modale | I-29 near Modale | — | 02003-07-012003 | ||
 Iowa 301
|
2.045 | 3.291 | I-29 | Little Sioux | — | 02003-07-012003 | ||
 Iowa 305
|
2.554 | 4.110 | Letts | US 61 / Iowa 92 near Letts | — | 02003-07-012003 | ||
 Iowa 306
|
0.783 | 1.260 | US 65 near Derby | Derby | — | 02003-07-012003 | ||
 Iowa 314
|
6.277 | 10.102 | Ayrshire | US 18 near Ruthven | — | 02003-07-012003 | ||
 Iowa 315
|
4.158 | 6.692 | Iowa 4 near Palmer | Palmer | — | 02003-02-182003 | ||
 Iowa 322
|
2.660 | 4.281 | Pammel State Park | Iowa 92 | — | 02003-07-012003 | ||
 Iowa 324
|
0.510 | 0.821 | Iowa 175 near Onawa | Lewis and Clark State Park | — | 02003-07-012003 | ||
 Iowa 325
|
— | — | Spillville | US 52 near Calmar | — | 02003-07-012003 | ||
 Iowa 327
|
— | — | Iowa 276 in Spirit Lake | Orleans | — | 02003-07-012003 | ||
 Iowa 333
|
12.939 | 20.823 | US 275 in Hamburg | US 59 near Shenandoah | — | — | Remainder of route unchanged | |
 Iowa 340
|
2.231 | 3.590 | Pikes Peak State Park | US 18 Business in McGregor | 01936-01-011936 | 02003-07-012003 | ||
 Iowa 349
|
1.032 | 1.661 | Lake Ahquabi State Park | US 65 / US 69 near Indianola | — | 02003-07-012003 | ||
 Iowa 359
|
7.383 | 11.882 | Buckeye | Iowa 941 at Alden | — | 02003-07-012003 | ||
 Iowa 362
|
5.469 | 8.802 | DeSoto National Wildlife Refuge | I-29 near Loveland | — | 02003-07-012003 | ||
 Iowa 363
|
1.616 | 2.601 | Iowa 150 near Urbana | I-380 at Urbana | — | 02003-07-012003 | ||
 Iowa 364
|
6.140 | 9.881 | Iowa 76 near Waukon Junction | Harpers Ferry | — | 02003-07-012003 | ||
 Iowa 371
|
0.715 | 1.151 | Lake Keomah State Park | Iowa 92 near Keomah Village | — | 02003-07-012003 | ||
 Iowa 382
|
4.792 | 7.712 | Lake Macbride State Park | Iowa 1 in Solon | — | 02003-07-012003 | ||
 Iowa 383
|
1.311 | 2.110 | US 69 near Randall | Randall | — | 02003-07-012003 | ||
 Iowa 384
|
1.231 | 1.981 | Iowa 25 near Guthrie Center | Springbrook State Park | 01944-01-011944 | 02003-07-012003 | ||
 Iowa 385
|
3.151 | 5.071 | Pacific Junction | US 34 / US 275 in Glenwood | — | 02003-02-182003 | ||
 Iowa 386
|
2.685 | 4.321 | US 52 / Iowa 3 / Iowa 32 at Sageville | US 52 / Iowa 3 at Sageville | 01945-01-011945 | 02003-07-012003 | ||
 Iowa 390
|
2.113 | 3.401 | South of Plainfield | North of Plainfield | 02002-01-012002 | 02003-07-012003 | Former section of US 218 | |
 Iowa 403
|
0.477 | 0.768 | SD 48 near Akron | Iowa 12 in Akron | 01980-01-011980 | 02003-07-012003 | ||
 Iowa 404
|
1.391 | 2.239 | Montrose | US 61 near Montrose | 01960-01-011960 | 02003-07-012003 | Spur route | |
 Iowa 405
|
0.249 | 0.401 | Lone Tree | Iowa 22 near Lone Tree | 01958-01-011958 | 02003-07-012003 | Spur route; section in Lone Tree removed 1980 | |
 Iowa 406
|
2.275 | 3.661 | US 34 near West Burlington | Burlington | 01957-01-011957 | 02003-07-012003 | Formerly Iowa 80; spur route | |
 Iowa 410
|
2.157 | 3.471 | Backbone State Park | Iowa 3 / Iowa 13 near Strawberry Point | 01958-01-011958 | 02003-07-012003 | Park access road | |
 Iowa 419
|
1.038 | 1.670 | Victor | US 6 / Iowa 21 near Victor | 01962-01-011962 | 02003-07-012003 | Spur route | |
 Iowa 421
|
3.260 | 5.246 | US 61 west of Blue Grass | US 61 east of Blue Grass | 02000-01-012000 | 02003-02-182003 | Former section of US 61 at Blue Grass | |
 Iowa 424
|
2.802 | 4.509 | South of Swedesburg | US 218 near Olds | 01999-01-011999 | 02003-07-012003 | Former section of US 218 | |
 Iowa 428
|
6.140 | 9.881 | Maquoketa Caves State Park | US 61 near Maquoketa | 01980-01-011980 | 02003-07-012003 | Park access road | |
 Iowa 432
|
1.9 | 3.1 | Iowa 163 in Oskaloosa | Iowa 92 in Oskaloosa | 01998-01-011998 | 02003-07-012003 | Former section of Iowa 163 | |
 Iowa 478
|
0.755 | 1.215 | Iowa 24 in New Hampton | North of New Hampton | 02002-01-012002 | 02003-07-012003 | Former section of US 63 | |
 Iowa 916
|
1.293 | 2.081 | Iowa 281 in Oelwein | Oelwein city limits | 01986-01-011986 | 02003-07-012003 | Originally ended at Iowa 915 in Oelwein; former section of Iowa 150 | |
 Iowa 917
|
0.149 | 0.240 | US 61 and Iowa 22 near Muscatine | Muscatine city limits | 01986-01-011986 | 02003-07-012003 | Former section of Iowa 22 | |
 Iowa 918
|
1.119 | 1.801 | Iowa 16 near Eldon | Iowa 16 in Eldon | 01984-01-011984 | 02003-07-012003 | Former section of Iowa 16; street signs said "Hwy 918" | |
 Iowa 920
|
12.560 | 20.213 | Center Point | Iowa 150 near Urbana | 01984-01-011984 | 02003-07-012003 | Former section of Iowa 150 | |
 Iowa 921
|
2.505 | 4.031 | US 6 / Iowa 1 in Iowa City | US 218 in Iowa City | 01985-01-011985 | 02003-07-012003 | Former section of US 218 | |
 Iowa 923
|
8.819 | 14.193 | — | — | 01982-01-011982 | 02003-07-012003 | Former section of US 218; had three sections | |
 Iowa 924
|
0.665 | 1.070 | US 61 near Montrose | Dead end in Montrose | 01994-01-011994 | 02003-07-012003 | Formerly Iowa 998; former section of US 61 | |
 Iowa 925
|
26.259 | 42.260 | I-80 / US 6 in Adair | US 6 near Dexter | 01980-01-011980 | 02003-07-012003 | Former section of US 6 | |
 Iowa 927
|
19.017 | 30.605 | US 6 / Iowa 38 in Wilton | I-280 / US 6 near Davenport | 01980-01-011980 | 02003-07-012003 | Former section of US 6; was signed in 1989 | |
 Iowa 928
|
20.168 | 32.457 | Iowa 17 near Webster City | CR D20 near Williams | 01980-01-011980 | 02003-07-012003 | Former section of US 20 | |
 Iowa 929
|
0.789 | 1.270 | Murray city limits | Maple Street in Murray | 01980-01-011980 | 02003-07-012003 | Former section of Iowa 152 | |
 Iowa 931
|
8.962 | 14.423 | I-35 in Ankeny | US 65 in Polk County | 01980-01-011980 | 02003-07-012003 | ||
 Iowa 932
|
0.193 | 0.311 | Ryan city limits | Iowa 13 in Ryan | 01976-01-011976 | 02003-07-012003 | Former section of Iowa 13 | |
 Iowa 935
|
1.492 | 2.401 | I-29 | Mills–Pottawattamie county line | 01982-01-011982 | 02003-07-012003 | Former section of Iowa 370 | |
 Iowa 936
|
0.275 | 0.443 | Iowa 92 near Ainsworth | Iowa 923 near Ainsworth | 01997-01-011997 | 02003-02-182003 | Former section of Iowa 92 | |
 Iowa 937
|
0.460 | 0.740 | Iowa 141 near Perry | US 169 near Perry | 01977-01-011977 | 02003-07-012003 | Former section of Iowa 141 | |
 Iowa 938
|
0.460 | 0.740 | Union Street in Unionville | Unionville south city limit boundary | 01980-01-011980 | 02003-07-012003 | Former section of Iowa 369 | |
 Iowa 939
|
18.931 | 30.466 | Iowa 187 near Masonville | Black Hawk–Buchanan county line | 01980-01-011980 | 02003-07-012003 | Former section of US 20 | |
 Iowa 940
|
0.081 | 0.130 | Tama–Benton county line near Belle Plaine | Iowa 21 near Belle Plaine | 01981-01-011981 | 02003-07-012003 | ||
 Iowa 941
|
12.953 | 20.846 | I-35 near Williams | Iowa Falls city limits | 01991-01-011991 | 02003-07-012003 | Former section of US 20 | |
 Iowa 942
|
0.466 | 0.750 | Vine Street in Woodburn | Woodburn city limits | 01980-01-011980 | 02003-07-012003 | Former section of Iowa 104 | |
 Iowa 944
|
0.553 | 0.890 | US 61 / Iowa 2 in Fort Madison | Fort Madison city limits | 01980-01-011980 | 02003-07-012003 | Former section of Iowa 88 | |
 Iowa 945
|
4.599 | 7.401 | I-80 near Altoona | Iowa 931 in Polk County | 01980-01-011980 | 02003-07-012003 | ||
 Iowa 947
|
0.671 | 1.080 | Iowa 70 in Columbus Junction | Market Street in Columbus City | 01994-01-011994 | 02003-07-012003 | Former section of Iowa 70 | |
 Iowa 949
|
2.275 | 3.661 | Glenwood city limits | US 34 / US 275 near Glenwood | 01974-01-011974 | 02003-02-182003 | Formerly US 34 Business | |
 Iowa 952
|
0.112 | 0.180 | US 151 near Cascade | Reiter Road near Cascade | 01992-01-011992 | 02003-07-012003 | Former section of US 151 | |
 Iowa 954
|
0.773 | 1.244 | US 61 near Maquoketa | Maquoketa city limits | 01967-01-011967 | 02003-07-012003 | Former section of US 61; numbered 1976 | |
 Iowa 955
|
0.727 | 1.170 | US 61 near Key West | Iowa 963 (Military Road) in Key West | 01971-01-011971 | 02003-07-012003 | Former section of US 61 | |
 Iowa 956
|
16.776 | 26.998 | CR F55 at Davenport | US 61 north of DeWitt | 01976-01-011976 | 02003-02-182003 | Former section of US 61 | |
 Iowa 957
|
0.062 | 0.100 | — | — | 01988-01-011988 | 02003-07-012003 | Former section of Iowa 22 | |
 Iowa 958
|
1.610 | 2.591 | Ottumwa city limits | US 63 south of Ottumwa | 01965-01-011965 | 02003-07-012003 | Former section of US 63 | |
 Iowa 963
|
4.139 | 6.661 | US 151 near Key West | US 61 / US 151 in Dubuque | 01971-01-011971 | 02003-07-012003 | Former section of US 151 and US 61 | |
 Iowa 967
|
0.037 | 0.060 | US 20 near Farley | Farley city limits | 01976-01-011976 | 02003-07-012003 | Former section of US 20 | |
 Iowa 970
|
0.31 | 0.50 | US 75 Business in Sioux City | Sioux City | 01976-01-011976 | 02003-07-012003 | Former section of US 75 | |
 Iowa 971
|
1.802 | 2.900 | US 69 in Lake Mills | Lake Mills city limits | 01993-01-011993 | 02003-07-012003 | Former section of Iowa 105 | |
 Iowa 972
|
1.877 | 3.021 | Northwood city limits | Northwood city limits | 01993-01-011993 | 02003-07-012003 | Former section of Iowa 105 | |
 Iowa 976
|
0.879 | 1.415 | — | — | 01997-01-011997 | 02003-07-012003 | Former section of US 30 | |
 Iowa 977
|
2.007 | 3.230 | US 59 in Cherokee | Iowa 3 near Cherokee | 01962-01-011962 | 02003-07-012003 | Former section of Iowa 3 | |
 Iowa 978
|
2.772 | 4.461 | I-29 / US 34 near Glenwood | Iowa 385 near Pacific Junction | 01974-01-011974 | 02003-02-182003 | Former section of US 34 | |
 Iowa 979
|
4.298 | 6.917 | Iowa City limits | Johnson–Cedar county line | 01961-01-011961 | 02003-07-012003 | Former section of Iowa 1 | |
 Iowa 982
|
27.787 | 44.719 | Smithland city limits | Sioux City city limits | 01967-01-011967 | 02003-07-012003 | Former section of Iowa 141 | |
 Iowa 985
|
1.927 | 3.101 | US 52 near Bellevue State Park | US 52 near Bellevue | 01980-01-011980 | 02003-07-012003 | Former section of US 52 | |
 Iowa 988
|
2.312 | 3.721 | I-29 / I-680 near Crescent | Iowa 183 in Crescent | 01975-01-011975 | 02003-07-012003 | ||
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Notes
- Lengths represent the length of highway removed from the primary highway system on or before July 1, 2003.
References
- "Evaluation of the State Highway System and Road Use Tax Fund" (PDF). April 1, 2003. Retrieved January 9, 2009.
- Piller, Dan (July 29, 1979). "Roads: An Explosive Issue for the 1980s". The Des Moines Register. p. 1. Retrieved August 19, 2020 – via Newspapers.com.
- 1979 Iowa Code (1978). "Establishment, Alteration, and Vacation of Highways". §306.8 Transfer of jurisdiction (PDF). p. 1400.
{{cite book}}: CS1 maint: numeric names: authors list (link) - ^ Johnston, Louis; Williamson, Samuel H. (2023). "What Was the U.S. GDP Then?". MeasuringWorth. Retrieved November 30, 2023. United States Gross Domestic Product deflator figures follow the MeasuringWorth series.
- Bunton, Kristie (January 18, 1984). "Local Road: The Old Highway Nobody Wants". Iowa City Press-Citizen. p. 2. Retrieved August 20, 2020 – via Newspapers.com.
- Reeder, Greg; Stevens, Larry; Fichtner, Royce; Stoner, Tom; Wandro, Mark; Volmer, Neil (April 1, 2003). "Evaluation of the State Highway System and Road Use Tax Fund" (PDF). State of Iowa. Retrieved April 18, 2012.
- Jurisdiction and Funding of Streets and Roads (PDF) (Chapter 144, Laws of the 80th General Assembly). Iowa General Assembly. 2003. pp. 333–335. Retrieved August 20, 2020.
- Petroski, William (February 19, 2003). "Cities, Counties Take Ownership of Some Roads". The Des Moines Register. p. 2B. Retrieved August 20, 2020.
- 2002 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa Department of Transportation. January 1, 2002. Retrieved August 20, 2020.