Adair County, IA

208 public highway bridges

Adair County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Adair County, Iowa contains 208 public highway bridges. Roughly 51% are rated “Good,” 35.1% “Fair,” and 12.5% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.

Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

208
Total Bridges
51%
Good
35.1%
Fair
12.5%
Poor Condition

Condition Distribution

Good
51% (106)
Fair
35.1% (73)
Poor
12.5% (26)

All Bridges (208)

330TH ST

Good

Over: LOCAL STREAM

0.1 mi W of P33 on 330th, Adair, IA

Built 2017 Load: 34.3 t ADT: 26

110TH ST

Good

Over: MIDDLE RIVER

3.1 mi E of N54 on 110th, Adair, IA

Built 2015 Load: 34.7 t ADT: 51

G61 310TH ST

Good

Over: UNNAMED CREEK

2.4 mi E of N72 on G61, Adair, IA

Built 2015 Load: 34.7 t ADT: 468

P17 NEVADA AVE

Good

Over: STREAM

074312902, Adair, IA

Built 2004 Load: 34.8 t ADT: 71

FM

Good

Over: NODAWAY RIVER

075333402, Adair, IA

Built 2004 Load: 35.6 t ADT: 79

N54 DELTA AVE

Good

Over: BRANCH OF NODAWAY RVR

2.5 mi N of G27 on N54, Adair, IA

Built 2013 Load: 35.9 t ADT: 349

GIBBON AVE

Good

Over: MIDDLE RIVER

0.2 mi S of Co Line, Adair, IA

Built 2016 Load: 36.0 t ADT: 15

FM

Good

Over: MIDDLE NODAWAY RIVER

074333402, Adair, IA

Built 2005 Load: 36.3 t ADT: 34

LEWIS AVE

Good

Over: NODAWAY CREEK

3.4 mi S of G35 on Lewis, Adair, IA

Built 2020 Load: 36.3 t ADT: 62

BROWN AVE

Good

Over: STREAM

0.6 mi S of 92 on Brown, Adair, IA

Built 2016 Load: 36.3 t ADT: 62

300TH ST

Good

Over: STREAM

74321810, Adair, IA

Built 2012 Load: 36.6 t ADT: 46

ORANGE AVE

Good

Over: STREAM

1 mi S of 92 on Orange Av, Adair, IA

Built 2014 Load: 36.6 t ADT: 21

LOCAL

Good

Over: MIDDLE NODAWAY RIVER

075330403, Adair, IA

Built 1998 Load: 36.6 t ADT: 72

P25 (RIVERSIDE)

Good

Over: MIDDLE RIVER, BRANCH

76311309, Adair, IA

Built 2012 Load: 36.6 t ADT: 34

180TH ST

Good

Over: NINE MILE CREEK

1.1 mi W of N72 on 180th, Adair, IA

Built 2014 Load: 36.6 t ADT: 21

ELK AVE

Good

Over: BRANCH NODAWAY RIVER

77332609, Adair, IA

Built 2012 Load: 36.6 t ADT: 30

FM

Good

Over: NODAWAY CREEK

076322201, Adair, IA

Built 2006 Load: 37.2 t ADT: 60

FM

Good

Over: CLARK BRANCH

074330510, Adair, IA

Built 1994 Load: 37.8 t ADT: 249

330TH ST

Good

Over: STREAM

0.9 mi W of P13 on 330th, Adair, IA

Built 2021 Load: 38.6 t ADT: 26

LOCAL

Good

Over: SMALL STREAM

074322801, Adair, IA

Built 2002 Load: 39.6 t ADT: 15

LOCAL

Good

Over: SMALL STREAM

074323207, Adair, IA

Built 2002 Load: 39.6 t ADT: 11

FM

Good

Over: STREAM

077330501, Adair, IA

Built 2005 Load: 39.6 t ADT: 71

FM

Good

Over: STREAM

077330501, Adair, IA

Built 2003 Load: 39.6 t ADT: 71

330TH ST

Good

Over: WEST FORK NODAWAY RIVER

74332865, Adair, IA

Built 2012 Load: 39.9 t ADT: 51

N54 DELTA AVE

Good

Over: NINE MILE CREEK

4.8 mi N of IA 92 on N54, Adair, IA

Built 2016 Load: 39.9 t ADT: 34

PINEWOOD AVE

Good

Over: MIDDLE RIVER

0.8 mi S of G15, Adair, IA

Built 2017 Load: 39.9 t ADT: 72

MARION AVE

Good

Over: NORTH TURKEY CREEK

77313005, Adair, IA

Built 2014 Load: 39.9 t ADT: 35

QUEBEC AVE

Good

Over: MIDDLE RIVER

2.2 mi S of G15 on Quebec, Adair, IA

Built 2021 Load: 39.9 t ADT: 21

G15 (130TH ST)

Good

Over: NORTH TURKEY CREEK

2.6 mi west of hwy 25, Adair, IA

Built 2012 Load: 39.9 t ADT: 60

220TH ST

Good

Over: STREAM

075320601, Adair, IA

Built 2009 Load: 40.0 t ADT: 30

MONROE AVE

Good

Over: STREAM

0.5 mi N of G35 on Monroe, Adair, IA

Built 2019 Load: 40.1 t ADT: 30

FM

Good

Over: W FORK NODAWAY RIVER

074330401, Adair, IA

Built 2009 Load: 40.2 t ADT: 71

FM

Good

Over: RUTT BRANCH

75320802, Adair, IA

Built 2009 Load: 41.4 t ADT: 319

280TH ST

Good

Over: MIDDLE NODAWAY RIVER

0.8 mi E of N72 on 280th, Adair, IA

Built 2023 Load: 41.8 t ADT: 15

LOCAL

Good

Over: NINE MILE CREEK

076332790, Adair, IA

Built 2004 Load: 41.8 t ADT: 11

PINEWOOD AVE

Good

Over: NORTH TURKEY CREEK

1.2 mi N of G27, Adair, IA

Built 2015 Load: 42.4 t ADT: 21

250TH ST

Good

Over: W FORK NODAWAY RIVER

0.7 mi E of N54 on 250th, Adair, IA

Built 2021 Load: 43.1 t ADT: 123

LOCAL

Good

Over: MIDDLE RIVER

000000000, Adair, IA

Built 2009 Load: 43.3 t ADT: 41

330TH ST

Good

Over: THREE MILE CREEK

1.5 mi E of P33 on 330th, Adair, IA

Built 2015 Load: 43.4 t ADT: 26

G61 310TH ST

Good

Over: STREAM

1.7 mi W of N51 on G61, Adair, IA

Built 2017 Load: 43.7 t ADT: 45

LOCAL

Good

Over: SHANGHAR CREEK

074322702, Adair, IA

Built 2009 Load: 44.6 t ADT: 30

LOCAL

Good

Over: SHANGHAR CREEK

074323402, Adair, IA

Built 2009 Load: 44.6 t ADT: 5

320TH ST

Good

Over: STREAM

74331939, Adair, IA

Built 2014 Load: 45.0 t ADT: 11

G35 (190TH ST)

Good

Over: STREAM

76321960, Adair, IA

Built 2013 Load: 45.0 t ADT: 50

N77 KENT AVE

Good

Over: NODAWAY RIVER

1.2 mi S of G35 on N77, Adair, IA

Built 2016 Load: 45.0 t ADT: 29

LEWIS AVE

Good

Over: NORTH TURKEY CREEK

0.9 mi S of G15 on Lewis, Adair, IA

Built 2018 Load: 45.0 t ADT: 30

140TH ST

Good

Over: NORTH TURKEY CREEK

1.9 mi W of 25 on 140th, Adair, IA

Built 2018 Load: 45.0 t ADT: 21

285 ST

Good

Over: MIDDLE NODAWAY RIVER

074320605, Adair, IA

Built 2000 Load: 45.5 t ADT: 26

LOCAL

Good

Over: MARVEL CREEK

075300702, Adair, IA

Built 1997 Load: 45.5 t ADT: 82

FM

Good

Over: MIDDLE NODAWAY RIVER

077333202, Adair, IA

Built 1996 Load: 45.5 t ADT: 29

Read our methodology - how this data is sourced, computed, and verified.

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Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.