Oldest Bridges in Iowa

The oldest bridge in Iowa dates to 1876. The table below shows the state's most historic bridges, ranked by year built. Many of these structures have survived well beyond their original design life — click any bridge to see its current condition and inspection history.

How this ranking works

This state list uses the NBI year-built field and links each bridge to its current inspection record. Treat age as a history signal, not a condition score.

Bridge	County	Year Built	Condition	Daily Traffic
Local-dead End over Skunk River	Story	1876	Poor	11
Local over Br Des Moines River	Marion	1878	Poor	21
Sutton RD over Wapsipinicon River	Linn	1879	Poor	140
Local 25th ST over Upper Iowa River	Howard	1880	Poor	26
Local over North Raccoon River	Dallas	1882	Poor	153
Ash ST over Des Moines ST	Des Moines	1882	Fair	565
Local-closed! over Dd 81	Palo Alto	1882	Fair	46
Main Street South over Small Creek	Des Moines	1886	Poor	3,705
Bridge ST over Turkey River	Clayton	1889	Fair	4,755
Local over Beaver Creek	Dallas	1890	Poor	21
Rosedale RD over Indian CR	Linn	1890	Poor	299
Local over Badger Creek	Madison	1890	Poor	40
150th ST over Stream	Winneshiek	1892	Poor	69
Stone Bridge RD over Wet Creek	Jones	1893	Poor	294
V AVE over Buffington Creek	Louisa	1893	Poor	11
Eureka AVE over Middle Br Wapsinonoc CR	Cedar	1895	Poor	20
FM over Small Stream	Dubuque	1895	Fair	45
Local over E Fork Of Des Moines	Emmet	1895	Poor	5
Grandview Trl over N Clanton Creek	Madison	1895	Poor	5
Local RD over Jim Creek	Madison	1895	Poor	20
Local over Wolf Creek	Tama	1895	Poor	11
So Main ST over Cascade Landing	Des Moines	1896	Poor	743
Local over Salt Creek	Tama	1897	Poor	44
215th ST over Des Moines River	Humboldt	1899	Poor	50
3rd ST over Over Abandon Rr	Adair	1900	Poor	387
Trenton AVE over Three Mile Creek	Adair	1900	Poor	15
Local over Nodaway Creek	Adair	1900	Poor	35
Local over Rutt Branch	Adair	1900	Poor	35
FM over Middle River	Adair	1900	Fair	20
Local over Branch Middle River	Adair	1900	Poor	21
Local over Middle Nodaway River	Adair	1900	Poor	21
Local over Stream	Adair	1900	Poor	11
N77 Union AVE over Cipra Branch	Adams	1900	Poor	71
Mulberry AVE over East Nodaway River	Adams	1900	Poor	5
198th Lane over Kemp Creek	Adams	1900	Poor	5
140th Street over East Nodaway River	Adams	1900	Poor	11
Local RD over Br Suttle Creek	Allamakee	1900	Poor	70
Local over Yellow River	Allamakee	1900	Poor	26
Local RD over Hickory Creek	Allamakee	1900	Fair	49
Local RD over Teeple Creek	Allamakee	1900	Poor	60
Local over Village Creek	Allamakee	1900	Poor	10
Clear Creek Wma over Clear Creek	Allamakee	1900	Fair	15
Donahue RD over Paint Creek	Allamakee	1900	Fair	10
Local over Paint Creek	Allamakee	1900	Poor	120
Local over Long Branch	Appanoose	1900	Poor	26
Local over Packard Creek	Appanoose	1900	Poor	16
Local over Shoal Creek	Appanoose	1900	Poor	11
Local over Stream	Appanoose	1900	Poor	21
Local over Indian Creek	Appanoose	1900	Poor	5
Local over Stream	Appanoose	1900	Fair	51
Local over Stream	Appanoose	1900	Poor	51
Local over Small	Appanoose	1900	Fair	26
100th AVE over Stream	Appanoose	1900	Poor	10
Local over Stream	Appanoose	1900	Poor	21
Local over Stream	Appanoose	1900	Poor	11
Local over Creek	Audubon	1900	Fair	11
Local over Br Prairie Ck	Benton	1900	Poor	29
Local RD over Br Mud Ck	Benton	1900	Poor	20
FM over Prairie Creek	Benton	1900	Poor	80
Local over Wild Cat Creek	Benton	1900	Poor	39
10th AVE over Minnow Creek	Benton	1900	Poor	349
W Ridgeway AVE over S Br Dry Run	Black Hawk	1900	Poor	1,049
6th ST over Elk Run Creek	Black Hawk	1900	Poor	209
Bishop AVE over Blowers Creek	Black Hawk	1900	Fair	1,339
Lincoln RD over Trib To Black Hawk Creek	Black Hawk	1900	Poor	177
Oxley RD over Indian Creek	Black Hawk	1900	Poor	26
Hoff RD over Prescotts Creek	Black Hawk	1900	Poor	29
Hammond AVE over Sink Creek	Black Hawk	1900	Poor	373
Local over Big Creek	Boone	1900	Poor	90
Local over Trib Des Moines River	Boone	1900	Fair	50
Local over Little Beaver Creek	Boone	1900	Fair	26
Local over Little Beaver Creek	Boone	1900	Poor	26
Local over Big Creek	Boone	1900	Fair	40
Local over Beaver Creek	Boone	1900	Poor	26
Local over Tributary Prairie Creek	Boone	1900	Fair	15
Local over Bluff Creek	Boone	1900	Poor	20
Local over Trib.des Moines River	Boone	1900	Poor	71
Local over Trib Des Moines River	Boone	1900	Poor	26
Local over Beaver Creek	Boone	1900	Fair	5
Local over Beaver Creek	Boone	1900	Poor	11
Local over Ioway Creek	Boone	1900	Poor	15
Local over Montgomery Creek	Boone	1900	Poor	34
Local over Bluff Creek	Boone	1900	Fair	30
Local over Trib Des Moines River	Boone	1900	Poor	20
FM over Bluff Creek	Boone	1900	Fair	60
190th ST over Stream	Boone	1900	Poor	20
270th ST over Crane Creek	Bremer	1900	Poor	20
Concord ST over Drainage	Buchanan	1900	Poor	220
165th ST over Small Creek	Buchanan	1900	Fair	104
Local over Stream	Buena Vista	1900	Poor	11
Traer ST over Ovrflw Shell Rock River	Butler	1900	Poor	1,902
Cherry ST over Drainage	Butler	1900	Poor	1,429
Ia 188 over Stream	Butler	1900	Fair	490
FM over Drainage	Butler	1900	Fair	79
Local over Small Stream	Butler	1900	Fair	15
Local over Small Stream	Butler	1900	Fair	26
Local over Maynes Creek	Butler	1900	Poor	26
Local over Small Stream	Butler	1900	Good	30
Local over Maynes Creek	Butler	1900	Fair	25
Local over Small Stream	Butler	1900	Fair	16
160th ST over Stream	Butler	1900	Fair	35
185th St. over Stream	Butler	1900	Poor	35
Local over Small Stream	Butler	1900	Fair	20
C13 over Small Stream	Butler	1900	Fair	727
Local over Stream	Calhoun	1900	Poor	5
Local over Purgatory Cr.	Calhoun	1900	Poor	34
Local over D.d. No 20	Calhoun	1900	Poor	40
Local over Lake Creek W Br	Calhoun	1900	Poor	11
Local over Camp Cr.	Calhoun	1900	Poor	20
Local over D.d.	Calhoun	1900	Poor	20
Local over D.d. No 83	Calhoun	1900	Poor	15
Local over Dd No 83	Calhoun	1900	Poor	30
Local over W Cedar Cr.	Calhoun	1900	Poor	5
Local over N Fork Camp CR	Calhoun	1900	Poor	26
Local over Dd 1-54	Calhoun	1900	Poor	26
Local over Dd 9-13	Calhoun	1900	Poor	40
180th ST over Dd 88	Calhoun	1900	Poor	26
Local over Big Cedar CR Dd 181	Calhoun	1900	Poor	15
Local over Drainage Ditch 125	Calhoun	1900	Fair	60
7th ST over Lateral #77 Dd #23	Carroll	1900	Fair	2,081
320th ST over Field Stream	Carroll	1900	Fair	29
FM over Nishnabotna River	Carroll	1900	Fair	45
Local over Willow Creek	Carroll	1900	Fair	26
Local over Willow Creek	Carroll	1900	Poor	40
Local over Field Stream	Carroll	1900	Fair	79
Local over Middle Racoon River	Carroll	1900	Poor	34
Local over Field Stream	Carroll	1900	Fair	11
Local (dead End over Field Stream	Carroll	1900	Poor	11
FM over Field Stream	Carroll	1900	Fair	71
Local over Purgatory Creek	Carroll	1900	Fair	0
Local over Elk Run	Carroll	1900	Fair	34
FM over Beaman Creek	Carroll	1900	Fair	748
11th ST over Lateral #77 Dd #23	Carroll	1900	Fair	1,112
Truman RD over Drainage	Cass	1900	Fair	95
Local - 560th over Waterway	Cass	1900	Poor	15
Local/rockport over Waterway	Cass	1900	Poor	89
FM - 710th over Waterway	Cass	1900	Fair	15
FM - 660th over Lone Tree Creek	Cass	1900	Poor	29
Local - Memphis over Turkey CR	Cass	1900	Poor	5
Local - 640th over Creek	Cass	1900	Fair	30
Local - 765th over Waterway	Cass	1900	Poor	35
FM over Waterway	Cass	1900	Fair	60
Local/keystone over Creek	Cass	1900	Poor	26
Local - 740th over Creek	Cass	1900	Poor	26
Local/keystone over Turkey Creek	Cass	1900	Poor	35
FM - Lansing over Waterway	Cass	1900	Poor	379
Local/keystone over Spring Creek	Cass	1900	Poor	15
Local - Akron over Troublesome Creek	Cass	1900	Poor	5
Local - Chicago over Buck Creek	Cass	1900	Poor	30
Local/buck Crk over East Nishnabotna River	Cass	1900	Poor	123
Local - 100th over Creek	Cass	1900	Poor	11
Cold Spr ST Pk over Stream	Cass	1900	Fair	0
Hayes AVE over Br Rock Run CR	Cedar	1900	Poor	26
Lake ST over Small Stream	Cerro Gordo	1900	Fair	1,290
Killdeer over Beaver Dam Creek	Cerro Gordo	1900	Poor	16
E-w 7th AVE N over Willow Creek	Cerro Gordo	1900	Poor	26
Violet ST over Rock Falls Creek	Cerro Gordo	1900	Poor	26
E. Maple ST over Railroad Creek	Cherokee	1900	Poor	472
E. Willow ST over Railroad Creek	Cherokee	1900	Poor	377
Euclid AVE over Railroad Creek	Cherokee	1900	Poor	699
Union ST over Railroad Creek	Cherokee	1900	Poor	803
Local- 630th ST over Maple River	Cherokee	1900	Poor	26
Local- M AVE over Creek	Cherokee	1900	Fair	45
Local- 600th ST over Rock Creek	Cherokee	1900	Poor	20
Local - A AVE over Small Creek	Cherokee	1900	Fair	20
Local 580th ST over Small Creek	Cherokee	1900	Poor	15
Local-490th ST over Maple River	Cherokee	1900	Poor	40
Fm-l Ave. over Small Creek	Cherokee	1900	Poor	429
Local 440th ST over Creek	Cherokee	1900	Poor	15
570th ST over Pitcher 153	Cherokee	1900	Poor	11
Birch ST over Goat Creek	Cherokee	1900	Fair	501
Cemetary Access over Stream	Cherokee	1900	Fair	0
Local over East Wapsipinicon	Chickasaw	1900	Poor	98
Sherman ST over Drainage	Clarke	1900	Poor	37
Local over Chariton Creek	Clarke	1900	Poor	34
Local over East Long Creek	Clarke	1900	Poor	5
Local over Br Long Creek	Clarke	1900	Fair	20
Local over Small Creek	Clarke	1900	Poor	40
Local over Small Stream	Clarke	1900	Poor	20
Local over South River	Clarke	1900	Poor	11
Local over Local Creek	Clarke	1900	Fair	20
Local over South River	Clarke	1900	Poor	40
Local over Small Stream	Clarke	1900	Poor	11
Local over South West Creek	Clarke	1900	Poor	11
Local over Small Stream	Clarke	1900	Poor	11
Local over Small Stream	Clarke	1900	Poor	11
330th ST over Stream	Clay	1900	Fair	123
Coffee RD over Plum Creek	Clayton	1900	Poor	49
Kahle AVE over Carlan CR	Clayton	1900	Poor	21
A AVE over Stream	Clayton	1900	Poor	11
A AVE over Stream	Clayton	1900	Fair	15
120th ST over Roberts Creek	Clayton	1900	Fair	98
100th St. over Union Creek	Clinton	1900	Poor	78
Local over Hockett Creek	Crawford	1900	Fair	21
Local over Small Stream	Crawford	1900	Fair	11
County Road over Mosquito Creek	Dallas	1900	Poor	21
FM over Elk Creek	Decatur	1900	Poor	40
117th ST over Sand Creek	Decatur	1900	Poor	11
FM 140th AVE over Small Stream	Delaware	1900	Fair	88
Local over Knotty Creek	Des Moines	1900	Fair	26