Audubon County, IA

161 public highway bridges

Audubon County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Audubon County, Iowa contains 161 public highway bridges. Roughly 32.9% are rated “Good,” 46.6% “Fair,” and 20.5% “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.

161
Total Bridges
32.9%
Good
46.6%
Fair
20.5%
Poor Condition

Condition Distribution

Good
32.9% (53)
Fair
46.6% (75)
Poor
20.5% (33)

All Bridges (161)

LOCAL

Fair

Over: INDIAN CREEK

079361402, Audubon, IA

Built 1958 Load: 7.3 t ADT: 11

LOCAL

Fair

Over: TROUBLESOME CREEK

078340404, Audubon, IA

Built 1925 Load: 9.5 t ADT: 46

LOCAL

Fair

Over: TROUBLESOME CREEK

078351305, Audubon, IA

Built 1959 Load: 12.1 t ADT: 21

LOCAL

Fair

Over: CREEK

079340805, Audubon, IA

Built 1900 Load: 12.9 t ADT: 11

LOCAL

Fair

Over: E NISHNABOTNA RIVER

079350201, Audubon, IA

Built 1924 Load: 13.0 t ADT: 15

270TH ST

Fair

Over: CREEK

079353101, Audubon, IA

Built 1957 Load: 13.5 t ADT: 20

LOCAL

Fair

Over: UNNAMED CREEK

080360705, Audubon, IA

Built 1967 Load: 13.5 t ADT: 15

LOCAL

Fair

Over: CREEK

078361704, Audubon, IA

Built 1950 Load: 15.6 t ADT: 21

COUNTY RD

Fair

Over: CROOKED CREEK

FM 078342402, Audubon, IA

Built 1955 Load: 16.0 t ADT: 15

FM

Fair

Over: CREEK

079343102, Audubon, IA

Built 1959 Load: 16.6 t ADT: 34

LOCAL

Fair

Over: E NISHNABOTNA RIVER

078363605, Audubon, IA

Built 1984 Load: 16.9 t ADT: 30

FM F-32

Fair

Over: CREEK

080360807, Audubon, IA

Built 1965 Load: 16.9 t ADT: 110

LOCAL

Fair

Over: CREEK

081350103, Audubon, IA

Built 1939 Load: 17.0 t ADT: 11

LOCAL

Fair

Over: CREEK

078363202, Audubon, IA

Built 1973 Load: 17.1 t ADT: 62

FM

Fair

Over: BR ELKHORN CREEK

079353102, Audubon, IA

Built 1967 Load: 17.9 t ADT: 15

SWIFT AVE

Fair

Over: CREEK

078340204, Audubon, IA

Built 1945 Load: 18.0 t ADT: 35

FM

Fair

Over: BR NISHNABOTNA RIVER

079352701, Audubon, IA

Built 1963 Load: 18.0 t ADT: 34

LOCAL

Fair

Over: STREAM

081351301, Audubon, IA

Built 1941 Load: 18.0 t ADT: 40

FM

Fair

Over: NISHNABOTNA

078351905, Audubon, IA

Built 1959 Load: 18.1 t ADT: 170

FM M-66

Fair

Over: CREEK

080360808, Audubon, IA

Built 1958 Load: 18.1 t ADT: 338

FM

Fair

Over: NISHNABOTNA RIVER

078350409, Audubon, IA

Built 1958 Load: 18.1 t ADT: 597

LOCAL

Fair

Over: CREEK

079340303, Audubon, IA

Built 1933 Load: 19.0 t ADT: 15

LOCAL

Fair

Over: BUCK CREEK

078362801, Audubon, IA

Built 1975 Load: 19.3 t ADT: 15

LOCAL

Fair

Over: E NISHNABOTNA RIVER

081350202, Audubon, IA

Built 1940 Load: 19.3 t ADT: 40

LOCAL

Fair

Over: CREEK

081341002, Audubon, IA

Built 1949 Load: 20.7 t ADT: 21

LOCAL

Fair

Over: CREEK

080362104, Audubon, IA

Built 1928 Load: 20.8 t ADT: 15

LOCAL

Fair

Over: CROOKED CREEK

078343502, Audubon, IA

Built 1900 Load: 20.9 t ADT: 5

LOCAL

Fair

Over: CREEK

080362401, Audubon, IA

Built 1936 Load: 21.5 t ADT: 91

JAY AVE

Fair

Over: CREEK

078351601, Audubon, IA

Built 1925 Load: 21.9 t ADT: 35

LOCAL

Fair

Over: CREEK

079343204, Audubon, IA

Built 1939 Load: 22.0 t ADT: 15

LOCAL

Fair

Over: TRIB OF TROUBLESOME CRK

078340505, Audubon, IA

Built 1980 Load: 22.4 t ADT: 41

LOCAL

Fair

Over: BUCK CREEK

078363201, Audubon, IA

Built 1974 Load: 22.5 t ADT: 30

FM

Fair

Over: CREEK

080361302, Audubon, IA

Built 1930 Load: 22.5 t ADT: 71

LOCAL

Fair

Over: CREEK

080341401, Audubon, IA

Built 1933 Load: 24.9 t ADT: 11

FM

Fair

Over: CREEK

080340502, Audubon, IA

Built 1963 Load: 25.3 t ADT: 26

LOCAL

Fair

Over: E NISHNABOTNA RIVER

081341901, Audubon, IA

Built 1971 Load: 25.3 t ADT: 5

FM

Fair

Over: BLUE GRASS CREEK

080351601, Audubon, IA

Built 1962 Load: 26.0 t ADT: 210

LOCAL

Fair

Over: PLEASANT RUN

078353602, Audubon, IA

Built 1973 Load: 26.4 t ADT: 11

FM

Fair

Over: NISHNABOTNA RIVER (EF)

080361503, Audubon, IA

Built 1963 Load: 26.5 t ADT: 110

LOCAL

Fair

Over: CREEK

080360703, Audubon, IA

Built 1938 Load: 26.6 t ADT: 30

LOCAL

Fair

Over: CREEK

078341602, Audubon, IA

Built 1977 Load: 26.8 t ADT: 51

FM

Fair

Over: CREEK

080343501, Audubon, IA

Built 1936 Load: 26.9 t ADT: 11

FM

Fair

Over: CREEK

081342402, Audubon, IA

Built 1932 Load: 26.9 t ADT: 5

FM F-65

Fair

Over: CROOKED CREEK

078343301, Audubon, IA

Built 1936 Load: 27.2 t ADT: 60

LOCAL

Fair

Over: CREEK

079360201, Audubon, IA

Built 1931 Load: 28.5 t ADT: 21

LOCAL

Fair

Over: CREEK

081341702, Audubon, IA

Built 1987 Load: 28.6 t ADT: 46

N DIVISION ST

Fair

Over: BLUE GRASS CREEK

Fairgrounds, Audubon, IA

Built 1933 Load: 28.7 t

FM

Fair

Over: CREEK

078340301, Audubon, IA

Built 1945 Load: 28.8 t ADT: 45

LOCAL

Fair

Over: CREEK

078360504, Audubon, IA

Built 1939 Load: 29.2 t ADT: 30

FM

Fair

Over: CREEK

078343004, Audubon, IA

Built 1920 Load: 29.3 t ADT: 60

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.