Adair County, IA

208 public highway bridges

Adair County Bridge Snapshot

Adair County, Iowa contains 208 public highway bridges in the FHWA National Bridge Inventory. Roughly 51% are rated “Good,” 35.1% “Fair,” 12.5% “Poor,” and 12.5% are classified as structurally deficient — the federal designation for spans whose deck, superstructure, or substructure has been rated 4 or below on the 0–9 NBI scale. Structurally deficient does not mean unsafe to cross; it means the bridge is on the priority list for repair or replacement.

Inspections in IA are conducted by certified engineers from the state Department of Transportation on a 24-month cycle, and results are reported back to the FHWA each spring. The list below shows every NBI-tracked bridge in the county, sorted by inventory load rating. Use the “Sort by” controls to surface the lowest-rated spans first, and click any row for full inspection history, traffic counts, and condition trends.

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

208
Total Bridges
51%
Good
12.5%
Poor
12.5%
Structurally Deficient

Condition Distribution

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

All Bridges (208)

FM

Fair

Over: GRAND RIVER

076312502, Adair, IA

Built 1961 Load: 29.7 t ADT: 45

FM

Fair

Over: MIDDLE RIVER

077312003, Adair, IA

Built 1959 Load: 29.7 t ADT: 240

MARION AVE

Fair

Over: STREAM

77311902, Adair, IA

Built 2012 Load: 31.1 t ADT: 30

LOCAL

Fair

Over: GRAND RIVER

075300604, Adair, IA

Built 2005 Load: 31.4 t ADT: 5

FM

Fair

Over: STREAM

074332202, Adair, IA

Built 1950 Load: 31.7 t ADT: 60

FM

Fair

Over: STREAM

075303104, Adair, IA

Built 1989 Load: 31.7 t ADT: 1,374

LOCAL

Fair

Over: STREAM

074320801, Adair, IA

Built 1989 Load: 32.7 t ADT: 20

LOCAL

Fair

Over: MIDDLE NODAWAY RIVER

077332802, Adair, IA

Built 1978 Load: 32.7 t ADT: 21

LOCAL

Fair

Over: STREAM

074322801, Adair, IA

Built 2005 Load: 32.8 t ADT: 15

FM

Fair

Over: PLUNGER CREEK

077302101, Adair, IA

Built 1963 Load: 33.0 t ADT: 79

FM

Fair

Over: MIDDLE NODAWAY RIVER BR.

076330502, Adair, IA

Built 1993 Load: 33.5 t ADT: 45

LOCAL

Fair

Over: RUFT BRANCH

075331105, Adair, IA

Built 2007 Load: 33.7 t ADT: 21

LOCAL

Fair

Over: BR GRAND RIVER

075300804, Adair, IA

Built 1961 Load: 34.6 t ADT: 15

LOCAL

Fair

Over: SMALL

077311102, Adair, IA

Built 1997 Load: 34.6 t ADT: 21

LOCAL

Fair

Over: STREAM

075331304, Adair, IA

Built 1991 Load: 34.7 t ADT: 41

LOCAL RD

Fair

Over: SMALL STREAM

077311401, Adair, IA

Built 2004 Load: 34.8 t ADT: 15

LOCAL

Fair

Over: NINE MILE RUN

075303202, Adair, IA

Built 1974 Load: 35.4 t ADT: 46

FM

Fair

Over: WEST FORK NODAWAY RIVER

074332105, Adair, IA

Built 1979 Load: 36.2 t ADT: 249

LOCAL

Fair

Over: STREAM

075302801, Adair, IA

Built 2005 Load: 37.2 t ADT: 35

FM

Fair

Over: NINE MILE RUN

075303104, Adair, IA

Built 1989 Load: 37.8 t ADT: 1,374

ELK AVE

Fair

Over: STREAM

3.0 mi W of N72 on 330th, Adair, IA

Built 2019 Load: 40.1 t ADT: 30

FM

Fair

Over: BRANCH, NODAWAY RIVER

077333402, Adair, IA

Built 2008 Load: 40.5 t ADT: 349

LOCAL

Fair

Over: STREAM

074321302, Adair, IA

Built 1970 Load: 42.8 t ADT: 26

FM

Fair

Over: BR OF MIDDLE NODAWAY

076332004, Adair, IA

Built 1979 Load: 51.2 t ADT: 15

INDIAN AVE

Fair

Over: STREAM

77322809, Adair, IA

Built 2014 Load: 60.6 t ADT: 21

LOCAL

Fair

Over: STREAM

74321560, Adair, IA

Built 2001 Load: 90.1 t ADT: 30

FM

Good

Over: NORTH TURKEY CREEK

077321402, Adair, IA

Built 1985 Load: 20.5 t ADT: 60

LOCAL

Good

Over: STREAM

077313002, Adair, IA

Built 2006 Load: 22.0 t ADT: 35

G67 330TH ST

Good

Over: STREAM

074303403, Adair, IA

Built 2003 Load: 23.2 t ADT: 15

LOCAL

Good

Over: SMALL

077323301, Adair, IA

Built 2005 Load: 24.2 t ADT: 5

LOCAL

Good

Over: GRAND RIVER

075300801, Adair, IA

Built 1958 Load: 24.9 t ADT: 30

FM

Good

Over: NORTH RIVER

077310301, Adair, IA

Built 1989 Load: 25.2 t ADT: 139

LOCAL

Good

Over: STREAM

076311803, Adair, IA

Built 2003 Load: 26.8 t ADT: 51

LOCAL

Good

Over: STREAM

076331601, Adair, IA

Built 2002 Load: 26.8 t ADT: 41

150TH ST

Good

Over: STREAM

077333101, Adair, IA

Built 2005 Load: 26.8 t ADT: 15

150TH ST

Good

Over: BRANCH OF NODAWAY RIVER

077333601, Adair, IA

Built 2005 Load: 26.8 t ADT: 21

LOCAL

Good

Over: BRANCH, NODAWAY RIVER

077333602, Adair, IA

Built 2002 Load: 26.8 t ADT: 26

P33 HENRY WALLACE

Good

Over: THREE MILE CREEK

74301807, Adair, IA

Built 1989 Load: 27.4 t ADT: 1,374

LOCAL

Good

Over: STREAM

0.9 mi W of N54 on 210th, Adair, IA

Built 2004 Load: 27.9 t ADT: 21

VICTOR AVE

Good

Over: STREAM

76301508, Adair, IA

Built 2013 Load: 28.2 t ADT: 41

LOCAL

Good

Over: CLARK BRANCH

074330503, Adair, IA

Built 1997 Load: 28.3 t ADT: 46

LOCAL

Good

Over: NODAWAY CREEK

076323602, Adair, IA

Built 2007 Load: 28.7 t ADT: 41

G61 310TH ST

Good

Over: THREE MILE CREEK

074301901, Adair, IA

Built 2003 Load: 31.8 t ADT: 379

P33 HENRY WALLACE

Good

Over: CREEK

074303102, Adair, IA

Built 2001 Load: 32.7 t ADT: 1,673

FM

Good

Over: W FK MIDDLE NODAWAY RVR

075331004, Adair, IA

Built 1982 Load: 32.7 t ADT: 60

INDIAN AVE

Good

Over: STREAM

77323308, Adair, IA

Built 2012 Load: 33.6 t ADT: 15

G53 270TH ST

Good

Over: BRANCH OF NINE MILE RUN

1.5 mi E of IA 25 on G53, Adair, IA

Built 2016 Load: 33.7 t ADT: 26

FM

Good

Over: MIDDLE NODAWAY RIVER

074332460, Adair, IA

Built 1978 Load: 34.1 t ADT: 249

LOCAL

Good

Over: BATTLE CREEK

075300602, Adair, IA

Built 2005 Load: 34.2 t ADT: 26

FM

Good

Over: MIDDLE NODAWAY RIVER

076320401, Adair, IA

Built 2002 Load: 34.3 t ADT: 89

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

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Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial