# List of bridges documented by the Historic American Engineering Record in Iowa

This is a list of bridges documented by the Historic American Engineering Record in the US state of Iowa.

## Bridges

| Survey No. | Name (as assigned by HAER) | Status | Type | Built | Documented | Carries | Crosses | Location | County | Coordinates |
| IA-1 | Pacific Shortline Bridge | Replaced | Rim-bearing swing span | 1896 | 1980 | US 77 | Missouri River | Sioux City, Iowa, and South Sioux City, Nebraska | Woodbury County, Iowa, and Dakota County, Nebraska | 42°29′15″N 96°24′49″W﻿ / ﻿42.48750°N 96.41361°W﻿ / 42.48750; -96.41361﻿ (Pacific Shortline Bridge) |
| IA-2 | Eagle Point Bridge | Replaced | Pennsylvania truss | 1902 | 1982 | US 61 / US 151 | Mississippi River | Dubuque, Iowa, and Hazel Green, Wisconsin | Dubuque County, Iowa, and Grant County, Wisconsin | 42°32′13″N 90°38′38″W﻿ / ﻿42.53694°N 90.64389°W﻿ / 42.53694; -90.64389﻿ (Eagle Point Bridge) |
| IA-3 | Keokuk and Hamilton Bridge | Extant | Swing span | 1916 | 1982 | Keokuk Junction Railway | Mississippi River | Keokuk, Iowa, and Hamilton, Illinois | Lee County, Iowa, and Hancock County, Illinois | 40°23′28″N 91°22′24″W﻿ / ﻿40.39111°N 91.37333°W﻿ / 40.39111; -91.37333﻿ (Keokuk and Hamilton Bridge) |
| IA-4 | Marsh Rainbow Arch Bridge | Replaced | Reinforced concrete through arch | 1927 | 1980 | West 8th Street North | Chicago, Rock Island and Pacific Railroad | Newton | Jasper | 41°42′06″N 93°03′46″W﻿ / ﻿41.70167°N 93.06278°W﻿ / 41.70167; -93.06278﻿ (Marsh Rainbow Arch Bridge) |
| IA-5 | Boyleston Bridge | Replaced | Parker truss | 1897 | 1985 | CR W75 | Skunk River | Lowell | Henry | 40°50′24″N 91°30′07″W﻿ / ﻿40.84000°N 91.50194°W﻿ / 40.84000; -91.50194﻿ (Boyleston Bridge) |
| IA-6 | Sutliff's Ferry Bridge | Abandoned | Parker truss | 1898 | 1982 | Sutliff Road | Cedar River | Solon | Johnson | 41°50′23″N 91°23′33″W﻿ / ﻿41.83972°N 91.39250°W﻿ / 41.83972; -91.39250﻿ (Sutliff's Ferry Bridge) |
| IA-7 | Mill Rock Bridge | Replaced | Pratt truss | 1913 | 1983 | CR Y34 | Bear Creek | Monmouth | Jackson | 42°03′44″N 90°50′25″W﻿ / ﻿42.06222°N 90.84028°W﻿ / 42.06222; -90.84028﻿ (Mill Rock Bridge) |
| IA-8 | South Third Avenue Bridge | Replaced | Reinforced concrete through arch | 1920 | 1979 | Iowa 14 (South Third Avenue) | Linn Creek | Marshalltown | Marshall | 42°02′27″N 92°54′29″W﻿ / ﻿42.04083°N 92.90806°W﻿ / 42.04083; -92.90806﻿ (South Third Avenue Bridge) |
| IA-9 | Traer Street Bridge | Replaced | Pennsylvania truss | 1903 | 1980 | Traer Street | Shell Rock River | Greene | Butler | 42°53′43″N 92°48′10″W﻿ / ﻿42.89528°N 92.80278°W﻿ / 42.89528; -92.80278﻿ (Traer Street Bridge) |
| IA-10 | Eureka Bridge | Relocated | Bowstring arch truss | 1872 | 1983 | City Park path | Man-made depression | Castalia | Winneshiek | 43°06′27″N 91°40′23″W﻿ / ﻿43.10750°N 91.67306°W﻿ / 43.10750; -91.67306﻿ (Eureka Bridge) |
| IA-11 | Taylor Bridge | Replaced | Reinforced concrete through arch | 1924 | 1983 | US 18 Bus. | Winnebago River | Mason City | Cerro Gordo | 43°08′53″N 93°09′44″W﻿ / ﻿43.14806°N 93.16222°W﻿ / 43.14806; -93.16222﻿ (Taylor Bridge) |
| IA-15 | Melan Arch Bridge | Relocated | Reinforced concrete closed-spandrel arch | 1893 | 1995 | Emma Sater Park path | Man-made depression | Rock Rapids | Lyon | 43°25′57″N 96°09′15″W﻿ / ﻿43.43250°N 96.15417°W﻿ / 43.43250; -96.15417﻿ (Melan Arch Bridge) |
| IA-17 | Open Spandrel Bridge | Replaced | Reinforced concrete open-spandrel arch | 1919 | 1985 | Hawkeye Avenue | Des Moines River | Fort Dodge | Webster | 42°30′46″N 94°12′13″W﻿ / ﻿42.51278°N 94.20361°W﻿ / 42.51278; -94.20361﻿ (Open Spandrel Bridge) |
| IA-18 | Lower Plymouth Rock Bridge | Replaced | Bowstring arch truss | 1877 | 1985 | Cold Water Creek Road | Upper Iowa River | Kendallville | Winneshiek | 43°25′54″N 91°59′50″W﻿ / ﻿43.43167°N 91.99722°W﻿ / 43.43167; -91.99722﻿ (Lower Plymouth Rock Bridge) |
| IA-19 | Freeport Bridge | Relocated | Bowstring arch truss | 1878 | 1985 | Clay Hill Road | Upper Iowa River | Decorah | Winneshiek | 43°18′19″N 91°44′33″W﻿ / ﻿43.30528°N 91.74250°W﻿ / 43.30528; -91.74250﻿ (Freeport Bridge) |
| IA-20 | Burlington Bridge | Replaced | Swing span | 1893 | 1985 | BNSF Railway | Mississippi River | Burlington, Iowa, and Gulfport, Illinois | Des Moines County, Iowa, and Henderson County, Illinois | 40°47′55″N 91°05′31″W﻿ / ﻿40.79861°N 91.09194°W﻿ / 40.79861; -91.09194﻿ (Burlington Bridge) |
| IA-21 | MacArthur Bridge | Replaced | Cantilever | 1917 | 1987 | US 34 | Mississippi River | Burlington, Iowa, and Gulfport, Illinois | Des Moines County, Iowa, and Henderson County, Illinois | 40°48′43″N 91°05′44″W﻿ / ﻿40.81194°N 91.09556°W﻿ / 40.81194; -91.09556﻿ (MacArthur Bridge) |
| IA-29 | Rock Valley Bridge | Replaced | Reinforced concrete through arch | 1918 | 1988 | US 30 | North Timber Creek | Marshall | Marshall | 42°00′31″N 92°51′07″W﻿ / ﻿42.00861°N 92.85194°W﻿ / 42.00861; -92.85194﻿ (Rock Valley Bridge) |
| IA-30 | Benton Street Bridge | Replaced | Steel built-up girder | 1949 | 1989 | Benton Street | Iowa River | Iowa City | Johnson | 41°39′02″N 91°32′20″W﻿ / ﻿41.65056°N 91.53889°W﻿ / 41.65056; -91.53889﻿ (Benton Street Bridge) |
| IA-31 | Cottonville Bridge | Replaced | Bowstring arch truss | 1946 | 1990 | CR D61 | Farmers Creek tributary | Maquoketa | Jackson | 42°14′18″N 90°37′33″W﻿ / ﻿42.23833°N 90.62583°W﻿ / 42.23833; -90.62583﻿ (Cottonville Bridge) |
| IA-32 | Supple Ford Bridge | Replaced | Bowstring arch truss | 1875 | 1990 | Temple Hill Road | Maquoketa River south fork | Clay Mills | Jones | 42°11′08″N 90°58′39″W﻿ / ﻿42.18556°N 90.97750°W﻿ / 42.18556; -90.97750﻿ (Supple Ford Bridge) |
| IA-35 | Davis Bridge | Replaced | Bowstring arch truss | 1879 | 1991 | CR 16 | Upper Iowa River | Lime Springs | Howard | 43°28′00″N 92°17′52″W﻿ / ﻿43.46667°N 92.29778°W﻿ / 43.46667; -92.29778﻿ (Davis Bridge) |
| IA-36 | Sixth Street Viaduct | Replaced | Pratt truss | 1886 | 1991 | Sixth Street | Burlington Northern Railroad | Burlington | Des Moines | 40°48′33″N 91°06′24″W﻿ / ﻿40.80917°N 91.10667°W﻿ / 40.80917; -91.10667﻿ (Sixth Street Viaduct) |
| IA-37 | Bevington Bridge | Replaced | Pratt truss | 1882 | 1992 | Warren Street | Middle River | Bevington | Madison | 41°21′33″N 93°47′25″W﻿ / ﻿41.35917°N 93.79028°W﻿ / 41.35917; -93.79028﻿ (Bevington Bridge) |
| IA-38 | Waverly Junction Bridge | Replaced | Parker truss | 1911 | 1991 | Country Road | Shell Rock River | Waverly | Bremer | 42°39′56″N 92°30′45″W﻿ / ﻿42.66556°N 92.51250°W﻿ / 42.66556; -92.51250﻿ (Waverly Junction Bridge) |
| IA-39 | Honey Creek Bridge | Replaced | Reinforced concrete girder | 1910 | 1992 | 105th Street | Honey Creek | Bangor | Marshall | 42°12′05″N 93°05′56″W﻿ / ﻿42.20139°N 93.09889°W﻿ / 42.20139; -93.09889﻿ (Honey Creek Bridge) |
| IA-40 | Okoboji Bridge | Relocated | Reinforced concrete girder | 1929 | 1992 | US 71 | Strait between East and West Okoboji Lake | Okoboji | Dickinson | 43°22′37″N 95°07′40″W﻿ / ﻿43.37694°N 95.12778°W﻿ / 43.37694; -95.12778﻿ (Okoboji Bridge) |
| IA-42 | 86th Street Overpass | Replaced | Aluminum built-up girder | 1958 | 1992 | Northwest 86th Street | I-35 / I-80 | Urbandale | Polk | 41°39′08″N 93°44′11″W﻿ / ﻿41.65222°N 93.73639°W﻿ / 41.65222; -93.73639﻿ (86th Street Overpass) |
| IA-43 | Black Hawk Bridge | Extant | Cantilever | 1931 | 1995 | Iowa 9/ WIS 82 | Mississippi River | Lansing, Iowa, and De Soto, Wisconsin | Allamakee County, Iowa, and Crawford County, Wisconsin | 43°21′55″N 91°12′52″W﻿ / ﻿43.36528°N 91.21444°W﻿ / 43.36528; -91.21444﻿ (Black Hawk Bridge) |
| IA-44 | Chicago & Northwestern Railroad Viaduct | Bypassed | Viaduct | 1901 | 1995 | Chicago and North Western Railway | Des Moines River | Boone | Boone | 42°03′35″N 93°58′08″W﻿ / ﻿42.05972°N 93.96889°W﻿ / 42.05972; -93.96889﻿ (Chicago & Northwestern Railroad Viaduct) |
| IA-45 | Wagon Bridge | Demolished | Pennsylvania truss | 1910 | 1995 | 200th Street | Des Moines River | Boone | Boone | 42°03′46″N 93°58′10″W﻿ / ﻿42.06278°N 93.96944°W﻿ / 42.06278; -93.96944﻿ (Wagon Bridge) |
| IA-46 | Lake City Bridge | Bypassed | Reinforced concrete through arch | 1914 | 1995 | Rainbow Bend County Park trail | Raccoon River | Lake City | Calhoun | 42°13′46″N 94°45′16″W﻿ / ﻿42.22944°N 94.75444°W﻿ / 42.22944; -94.75444﻿ (Lake City Bridge) |
| IA-47 | Elkader Bridge | Extant | Stone arch | 1889 | 1995 | Bridge Street | Turkey River | Elkader | Clayton | 42°51′18″N 91°24′13″W﻿ / ﻿42.85500°N 91.40361°W﻿ / 42.85500; -91.40361﻿ (Elkader Bridge) |
| IA-48 | Nishnabotna River Bridge | Extant | Bowstring arch truss | 1945 | 1995 | 310th Street | Nishnabotna River | Manilla | Crawford | 41°52′02″N 95°16′01″W﻿ / ﻿41.86722°N 95.26694°W﻿ / 41.86722; -95.26694﻿ (Nishnabotna River Bridge) |
| IA-49 | Euritt Bridge | Abandoned | Pratt truss | 1882 | 1995 | River Road | Grand River | Leon | Decatur | 40°43′18″N 93°52′33″W﻿ / ﻿40.72167°N 93.87583°W﻿ / 40.72167; -93.87583﻿ (Euritt Bridge) |
| IA-50 | Cascade Bridge | Abandoned | Baltimore truss | 1896 | 1995 | South Main Street | Cascade Ravine | Burlington | Des Moines | 40°46′53″N 91°05′55″W﻿ / ﻿40.78139°N 91.09861°W﻿ / 40.78139; -91.09861﻿ (Cascade Bridge) |
| IA-51 | White Water Creek Bridge | Relocated | Pratt truss | 1872 | 1995 | Bergfeld Pond Trail | Bergfeld Pond | Bernard | Dubuque | 42°29′21″N 90°46′33″W﻿ / ﻿42.48917°N 90.77583°W﻿ / 42.48917; -90.77583﻿ (White Water Creek Bridge) |
| IA-52 | Ellsworth Ranch Bridge | Extant | Pratt truss | 1895 | 1995 | 130th Street | Des Moines River east fork | Dolliver | Emmet | 43°27′36″N 94°34′49″W﻿ / ﻿43.46000°N 94.58028°W﻿ / 43.46000; -94.58028﻿ (Ellsworth Ranch Bridge) |
| IA-53 | Twin Bridge | Extant | Reinforced concrete closed-spandrel arch | 1910 | 1995 | 130th Street | Little Volga River | Fayette | Fayette | 42°49′4″N 91°52′41″W﻿ / ﻿42.81778°N 91.87806°W﻿ / 42.81778; -91.87806﻿ (Twin Bridge) |
| IA-54 | Dietzenbach Bottom Bridge | Bypassed | Warren truss | 1891 | 1995 | Pheasant Road | Turkey River | Saint Lucas | Fayette | 43°04′39″N 91°53′21″W﻿ / ﻿43.07750°N 91.88917°W﻿ / 43.07750; -91.88917﻿ (Dietzenbach Bottom Bridge) |
| IA-55 | West Auburn Bridge | Bypassed | Whipple truss | 1881 | 1995 | Neon Road | Turkey River | West Union | Fayette | 43°00′58″N 91°52′43″W﻿ / ﻿43.01611°N 91.87861°W﻿ / 43.01611; -91.87861﻿ (West Auburn Bridge) |
| IA-56 | Alden Bridge | Extant | Reinforced concrete rigid frame | 1936 | 1995 | Main Street | Iowa River | Alden | Hardin | 42°31′16″N 93°22′32″W﻿ / ﻿42.52111°N 93.37556°W﻿ / 42.52111; -93.37556﻿ (Alden Bridge) |
| IA-57 | Hardin City Bridge | Relocated | Whipple truss | 1879 | 1995 | 170th Street | Iowa River | Steamboat Rock | Hardin | 42°26′55″N 93°06′34″W﻿ / ﻿42.44861°N 93.10944°W﻿ / 42.44861; -93.10944﻿ (Hardin City Bridge) |
| IA-58 | Fremont Mill Bridge | Relocated | Bowstring arch truss | 1873 | 1995 | Central Park trail | Central Park Lake | Anamosa | Jones | 42°06′38″N 91°08′26″W﻿ / ﻿42.11056°N 91.14056°W﻿ / 42.11056; -91.14056﻿ (Fremont Mill Bridge) |
| IA-59 | Hale Bridge | Relocated | Bowstring arch truss | 1879 | 1995 | Wapsipinicon State Park trail | Wapsipinicon River | Oxford Junction | Jones | 42°05′34″N 91°16′29″W﻿ / ﻿42.09278°N 91.27472°W﻿ / 42.09278; -91.27472﻿ (Hale Bridge) |
| IA-60 | Corbett's Mill Bridge | Bypassed | Bowstring arch truss | 1871 | 1995 | Abandoned road | Maquoketa River | Scotch Grove | Jones | 42°12′00″N 91°03′34″W﻿ / ﻿42.20000°N 91.05944°W﻿ / 42.20000; -91.05944﻿ (Corbett's Mill Bridge) |
| IA-61 | Bridgeport Bridge | Bypassed | Pennsylvania truss | 1904 | 1995 | Abandoned road | Skunk River | Denmark | Lee and Des Moines | 40°47′25″N 91°21′50″W﻿ / ﻿40.79028°N 91.36389°W﻿ / 40.79028; -91.36389﻿ (Bridgeport Bridge) |
| IA-62 | Fort Madison Bridge | Extant | Swing span | 1927 | 1995 | Iowa 2/ IL 9 | Mississippi River | Fort Madison, Iowa, and Niota, Illinois | Lee County, Iowa, and Hancock County, Illinois | 40°37′37″N 91°17′45″W﻿ / ﻿40.62694°N 91.29583°W﻿ / 40.62694; -91.29583﻿ (Fort Madison Bridge) |
| IA-64 | Holliwell Bridge | Bypassed | Lattice truss | 1880 | 1995 | Holliwell Bridge Road | Middle River | Winterset | Madison | 41°19′22″N 93°57′34″W﻿ / ﻿41.32278°N 93.95944°W﻿ / 41.32278; -93.95944﻿ (Holliwell Bridge) |
| IA-65 | Eveland Bridge | Abandoned | Whipple truss | 1887 | 1995 | 285th Street | Des Moines River | Oskaloosa | Mahaska | 41°14′34″N 92°45′23″W﻿ / ﻿41.24278°N 92.75639°W﻿ / 41.24278; -92.75639﻿ (Eveland Bridge) |
| IA-66 | Middle Creek Bridge | Abandoned | Pratt truss | 1898 | 1995 | Ventura Road | Middle Creek | Rose Hill | Mahaska | 41°20′24″N 92°27′50″W﻿ / ﻿41.34000°N 92.46389°W﻿ / 41.34000; -92.46389﻿ (Middle Creek Bridge) |
| IA-67 NE-5 | Plattsmouth Bridge | Bypassed | Cantilever | 1929 | 1995 | US 34 | Missouri River | Pacific Junction, Iowa, and Plattsmouth, Nebraska | Mills County, Iowa, and Cass County, Nebraska | 41°00′04″N 95°52′00″W﻿ / ﻿41.00111°N 95.86667°W﻿ / 41.00111; -95.86667﻿ (Plattsmouth Bridge) |
| IA-68 | Nodaway River Bridge | Relocated | Bowstring arch truss | 1876 | 1995 | Pilot Grove County Park trail | Pilot Grove County Park pond | Grant | Montgomery | 41°08′46″N 95°02′34″W﻿ / ﻿41.14611°N 95.04278°W﻿ / 41.14611; -95.04278﻿ (Nodaway River Bridge) |
| IA-69 | Pine Mill Bridge | Extant | Pratt truss | 1878 | 1995 | Wildcat Den State Park trail | Pine Creek | Muscatine | Muscatine | 41°28′03″N 90°52′02″W﻿ / ﻿41.46750°N 90.86722°W﻿ / 41.46750; -90.86722﻿ (Pine Mill Bridge) |
| IA-70 | Court Avenue Bridge | Extant | Reinforced concrete open-spandrel arch | 1918 | 1995 | Court Avenue | Des Moines River | Des Moines | Polk | 41°35′09″N 93°37′03″W﻿ / ﻿41.58583°N 93.61750°W﻿ / 41.58583; -93.61750﻿ (Court Avenue Bridge) |
| IA-71 | Southwest Fifth Street Bridge | Extant | Pratt truss | 1898 | 1995 | Southwest 5th Street | Raccoon River | Des Moines | Polk | 41°34′37″N 93°37′10″W﻿ / ﻿41.57694°N 93.61944°W﻿ / 41.57694; -93.61944﻿ (Southwest Fifth Street Bridge) |
| IA-72 | McDowell Bridge | Demolished | Bowstring arch truss | 1883 | 1995 | Abandoned road | North Skunk River | Montezuma | Poweshiek | 41°31′14″N 92°40′34″W﻿ / ﻿41.52056°N 92.67611°W﻿ / 41.52056; -92.67611﻿ (McDowell Bridge) |
| IA-73 | Centennial Bridge | Extant | Steel arch | 1940 | 1995 | US 67 | Mississippi River | Davenport, Iowa, and Rock Island, Illinois | Scott County, Iowa, and Rock Island County, Illinois | 41°30′54″N 90°34′54″W﻿ / ﻿41.51500°N 90.58167°W﻿ / 41.51500; -90.58167﻿ (Centennial Bridge) |
| IA-74 | Keigley Branch Bridge | Extant | Reinforced concrete closed-spandrel arch | 1913 | 1995 | 550th Street | Keigley Branch | Gilbert | Story | 42°08′13″N 93°36′04″W﻿ / ﻿42.13694°N 93.60111°W﻿ / 42.13694; -93.60111﻿ (Keigley Branch Bridge) |
| IA-75 | Lincoln Highway Bridge | Extant | Reinforced concrete cast-in-place slab | 1914 | 1995 | US 30 (East 5th Street) | Mud Creek | Tama | Tama | 41°57′50″N 92°33′44″W﻿ / ﻿41.96389°N 92.56222°W﻿ / 41.96389; -92.56222﻿ (Lincoln Highway Bridge) |
| IA-76 | Red Bridge | Extant | Pratt truss | 1920 | 1996 | Abandoned road | Yellow River | Postville | Allamakee | 43°07′51″N 91°25′29″W﻿ / ﻿43.13083°N 91.42472°W﻿ / 43.13083; -91.42472﻿ (Red Bridge) |
| IA-77 | Wapsipinicon River Bridge | Extant | Reinforced concrete closed-spandrel arch | 1927 | 1996 | Iowa 150 | Wapsipinicon River | Independence | Buchanan | 42°27′33″N 91°53′27″W﻿ / ﻿42.45917°N 91.89083°W﻿ / 42.45917; -91.89083﻿ (Wapsipinicon River Bridge) |
| IA-78 | Winnebago River Bridge | Extant | Reinforced concrete girder | 1926 | 1996 | US 65 northbound | Winnebago River | Mason City | Cerro Gordo | 43°11′35″N 93°12′36″W﻿ / ﻿43.19306°N 93.21000°W﻿ / 43.19306; -93.21000﻿ (Winnebago River Bridge) |
| IA-79 | Mederville Bridge | Bypassed | Reinforced concrete open-spandrel arch | 1918 | 1996 | Eclipse Road | Volga River | Mederville | Clayton | 42°45′49″N 91°25′18″W﻿ / ﻿42.76361°N 91.42167°W﻿ / 42.76361; -91.42167﻿ (Mederville Bridge) |
| IA-80 | Cedar River Bridge | Extant | Steel built-up girder | 1936 | 1996 | River Road | Cedar River | Floyd | Floyd | 43°12′25″N 92°47′34″W﻿ / ﻿43.20694°N 92.79278°W﻿ / 43.20694; -92.79278﻿ (Cedar River Bridge) |
| IA-81 | Illinois Central Railroad Overpass | Extant | Steel built-up girder | 1932 | 1996 | Iowa 57 | Illinois Central Railroad | Ackley | Hardin | 42°33′24″N 93°02′49″W﻿ / ﻿42.55667°N 93.04694°W﻿ / 42.55667; -93.04694﻿ (Illinois Central Railroad Overpass) |
| IA-82 | Wapsipinicon River Bridge | Bypassed | Pratt truss | 1887 | 1996 | US 151 | Wapsipinicon River | Anamosa | Jones | 42°06′04″N 91°17′31″W﻿ / ﻿42.10111°N 91.29194°W﻿ / 42.10111; -91.29194﻿ (Wapsipinicon River Bridge) |
| IA-83 | Upper Paris Bridge | Extant | Whipple truss | 1879 | 1996 | Sutton Road | Wapsipinicon River | Paris | Linn | 42°14′40″N 91°35′04″W﻿ / ﻿42.24444°N 91.58444°W﻿ / 42.24444; -91.58444﻿ (Upper Paris Bridge) |
| IA-84 | Southeast Fourteenth Street Bridge | Extant | Steel built-up girder | 1937 | 1996 | US 65 / US 69 (Southeast 14th Street) | Des Moines River | Des Moines | Polk | 41°34′32″N 93°35′49″W﻿ / ﻿41.57556°N 93.59694°W﻿ / 41.57556; -93.59694﻿ (Southeast Fourteenth Street Bridge) |
| IA-85 | Kilbourn Bridge | Extant | Pratt truss | 1909 | 1996 | Lark Avenue | Des Moines River | Kilbourn | Van Buren | 40°47′59″N 91°58′14″W﻿ / ﻿40.79972°N 91.97056°W﻿ / 40.79972; -91.97056﻿ (Kilbourn Bridge) |
| IA-86 | Jefferson Street Viaduct | Extant | Warren truss | 1936 | 1996 | US 34 / US 63 (Jefferson Street) | Des Moines River | Ottumwa | Wapello | 41°00′48″N 92°24′44″W﻿ / ﻿41.01333°N 92.41222°W﻿ / 41.01333; -92.41222﻿ (Jefferson Street Viaduct) |
| IA-87 | Grand Avenue Viaduct | Extant | Viaduct | 1936 | 1996 | US 20 Bus. / Iowa 12 (Gordon Drive) | Chicago and North Western Railroad | Sioux City | Woodbury | 42°29′23″N 96°23′31″W﻿ / ﻿42.48972°N 96.39194°W﻿ / 42.48972; -96.39194﻿ (Grand Avenue Viaduct) |
| IA-88 | Historical Overview of Iowa Bridges | | | | 1996 | | | Ames | Story | |
| IA-89 | Structural Study of Reinforced Concrete Arch Bridges | | Reinforced concrete closed-spandrel arch | | 1996 | Structural analyses of Melan Arch Bridge, etc. | | Ames | Story | |
| IA-90 | Structural Study of Iron Bowstring Bridges | | Bowstring arch truss | | 1996 | Structural analyses of Fremont Mill Bridge, etc. | | Ames | Story | |
| IA-92 | Cutler Bridge | Relocated | Lattice truss | 1871 | 2002 | Winterset City Park trail | Middle River tributary | Winterset | Madison | 41°19′52″N 94°00′17″W﻿ / ﻿41.33111°N 94.00472°W﻿ / 41.33111; -94.00472﻿ (Cutler Bridge) |
| IA-93 | Hogback Bridge | Bypassed | Lattice truss | 1884 | 2002 | Hogback Bridge Road | North River | Winterset | Madison | 41°23′11″N 94°02′51″W﻿ / ﻿41.38639°N 94.04750°W﻿ / 41.38639; -94.04750﻿ (Hogback Bridge) |
| IA-94 | Imes Bridge | Relocated | Lattice truss | 1870 | 2002 | CR G50 trail | Man-made depression | St. Charles | Madison | 41°17′21″N 93°48′03″W﻿ / ﻿41.28917°N 93.80083°W﻿ / 41.28917; -93.80083﻿ (Imes Bridge) |
| IA-95 | Roseman Bridge | Extant | Lattice truss | 1883 | 2002 | CR G47 | Middle River | Winterset | Madison | 41°17′34″N 94°08′59″W﻿ / ﻿41.29278°N 94.14972°W﻿ / 41.29278; -94.14972﻿ (Roseman Bridge) |
| IA-96 SD-1 | Sioux City Bridge | Replaced | Whipple truss | 1888 | 1986 | Chicago and North Western Railway | Missouri River | Sioux City, Iowa, and South Sioux City, Nebraska | Woodbury County, Iowa, and Dakota County, Nebraska | 42°28′28″N 96°23′10″W﻿ / ﻿42.47444°N 96.38611°W﻿ / 42.47444; -96.38611﻿ (Sioux City Bridge) |
| IA-97 | Ebys Mill Road Bridge | Replaced | Reinforced concrete girder | 1964 | 2014 | CR X73 (Ebys Mill Road) | Small Creek | Ebys Mill | Jones | 42°11′56″N 91°02′48″W﻿ / ﻿42.19889°N 91.04667°W﻿ / 42.19889; -91.04667﻿ (Ebys Mill Road Bridge) |
| IA-98 | Bridge 23780 | Replaced | Prestressed concrete box beam | 1958 | 2014 | US 20 westbound | Maquoketa River north fork | Dyersville | Dubuque | 42°28′14″N 91°07′29″W﻿ / ﻿42.47056°N 91.12472°W﻿ / 42.47056; -91.12472﻿ (Bridge 23780) |
| IA-99 | Bridge 33470 | Replaced | Steel built-up girder | 1953 | 2014 | US 30 eastbound | Cedar River | Cedar Rapids | Linn | 41°55′33″N 91°33′03″W﻿ / ﻿41.92583°N 91.55083°W﻿ / 41.92583; -91.55083﻿ (Bridge 33470) |
| IL-20-P | Rock Island Arsenal, Rock Island Bridge | Extant | Swing span | 1896 | 1985 | | Mississippi River | Davenport, Iowa, and Rock Island, Illinois | Scott County, Iowa, and Rock Island County, Illinois | 41°31′09″N 90°34′01″W﻿ / ﻿41.51917°N 90.56694°W﻿ / 41.51917; -90.56694﻿ (Rock Island Arsenal, Rock Island Bridge) |
| NE-1 | Abraham Lincoln Memorial Bridge | Replaced | Pennsylvania truss | 1929 | 1987 | US 30 | Missouri River | California Junction, Iowa, and Blair, Nebraska | Harrison County, Iowa, and Washington County, Nebraska | 41°33′04″N 96°05′44″W﻿ / ﻿41.55111°N 96.09556°W﻿ / 41.55111; -96.09556﻿ (Abraham Lincoln Memorial Bridge) |
| NE-2 | Nebraska City Bridge | Demolished | Whipple truss | 1888 | 1986 | Chicago, Burlington and Quincy Railroad | Missouri River | Percival, Iowa, and Nebraska City, Nebraska | Fremont County, Iowa, and Otoe County, Nebraska | 40°40′27″N 95°50′14″W﻿ / ﻿40.67417°N 95.83722°W﻿ / 40.67417; -95.83722﻿ (Nebraska City Bridge) |
| NE-6 | Omaha Bridge | Replaced | Whipple truss | 1887 | 1986 | Union Pacific Railroad | Missouri River | Council Bluffs, Iowa, and Omaha, Nebraska | Pottawattamie County, Iowa, and Douglas County, Nebraska | 41°14′59″N 95°55′02″W﻿ / ﻿41.24972°N 95.91722°W﻿ / 41.24972; -95.91722﻿ (Omaha Bridge) |
| NE-7 | Blair Crossing Bridge | Replaced | Whipple truss | 1883 | 1986 | Union Pacific Railroad | Missouri River | California Junction, Iowa, and Blair, Nebraska | Harrison County, Iowa, and Washington County, Nebraska | 41°33′5″N 96°05′44″W﻿ / ﻿41.55139°N 96.09556°W﻿ / 41.55139; -96.09556﻿ (Blair Crossing Bridge) |