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)

FM

Fair

Over: CREEK

080361304, Audubon, IA

Built 1936 Load: 29.6 t ADT: 71

LOCAL

Fair

Over: CREEK

081361502, Audubon, IA

Built 1941 Load: 29.7 t ADT: 21

LOCAL

Fair

Over: CREEK

078351604, Audubon, IA

Built 1969 Load: 29.8 t ADT: 15

LOCAL

Fair

Over: E BR W NISHNABOTNA RIVER

081362502, Audubon, IA

Built 1986 Load: 29.8 t ADT: 41

FM

Fair

Over: DRAINAGE DITCH

081363604, Audubon, IA

Built 1969 Load: 31.7 t ADT: 34

FM

Fair

Over: CREEK

080342402, Audubon, IA

Built 1937 Load: 31.8 t ADT: 15

FM

Fair

Over: BLUE GRASS CREEK

080353403, Audubon, IA

Built 1993 Load: 32.7 t ADT: 120

LOCAL

Fair

Over: CREEK

078363101, Audubon, IA

Built 1939 Load: 33.9 t ADT: 30

FM

Fair

Over: CREEK

080343501, Audubon, IA

Built 1936 Load: 34.0 t ADT: 11

LOCAL

Fair

Over: CREEK

081351901, Audubon, IA

Built 1997 Load: 34.1 t ADT: 21

LOCAL

Fair

Over: CREEK

078351607, Audubon, IA

Built 1924 Load: 34.8 t ADT: 15

SIDE ROAD

Fair

Over: DRAINAGE

Fairgrounds, Audubon, IA

Built 1938 Load: 34.8 t

LOCAL

Fair

Over: CREEK

078360603, Audubon, IA

Built 1973 Load: 35.3 t ADT: 51

MOCKINGBIRD AVE

Fair

Over: CREEK

081341802, Audubon, IA

Built 1993 Load: 36.6 t ADT: 11

LOCAL

Fair

Over: CREEK

081351201, Audubon, IA

Built 1929 Load: 38.1 t ADT: 46

LOCAL

Fair

Over: E BR W NISHNABOTNA

080360302, Audubon, IA

Built 1990 Load: 38.2 t ADT: 21

FM

Fair

Over: CREEK

081351302, Audubon, IA

Built 1946 Load: 38.5 t ADT: 40

FM-N-36

Fair

Over: CREEK

079341504, Audubon, IA

Built 1975 Load: 39.0 t ADT: 278

LOCAL

Fair

Over: CREEK

080363003, Audubon, IA

Built 1925 Load: 41.5 t ADT: 30

LOCAL

Fair

Over: CREEK

078342904, Audubon, IA

Built 1940 Load: 43.6 t ADT: 21

FM

Fair

Over: ELKHORN CREEK

078360503, Audubon, IA

Built 1971 Load: 44.7 t ADT: 597

LOCAL

Fair

Over: CREEK

081341702, Audubon, IA

Built 2008 Load: 49.5 t ADT: 46

LOCAL

Fair

Over: CREEK

080361002, Audubon, IA

Built 1988 Load: 52.5 t ADT: 30

FM-M-66

Fair

Over: CREEK

080361704, Audubon, IA

Built 1972 Load: 99.9 t ADT: 338

FM

Fair

Over: CREEK

079361701, Audubon, IA

Built 1952 Load: 99.9 t ADT: 50

FM-F-65

Good

Over: PLEASANT RUN

078353603, Audubon, IA

Built 1974 Load: 20.2 t ADT: 20

LOCAL

Good

Over: BUCK CREEK

078362204, Audubon, IA

Built 1985 Load: 21.2 t ADT: 15

LOCAL

Good

Over: INDIAN CREEK

079362102, Audubon, IA

Built 1984 Load: 21.2 t ADT: 41

FM

Good

Over: DAVIDS CREEK

080342502, Audubon, IA

Built 1979 Load: 21.2 t ADT: 26

FM N-14

Good

Over: TRIB OF WEST NISHNABOTNA

081362602, Audubon, IA

Built 1980 Load: 21.2 t ADT: 60

315 ST

Good

Over: CREEK

078361605, Audubon, IA

Built 2000 Load: 22.8 t ADT: 30

HERON AVE

Good

Over: CREEK

T81N R35W Sec20, Audubon, IA

Built 2017 Load: 23.0 t ADT: 41

LOCAL

Good

Over: CREEK

079362001, Audubon, IA

Built 1938 Load: 28.5 t ADT: 30

FM

Good

Over: CREEK

078360404, Audubon, IA

Built 1939 Load: 28.7 t ADT: 60

FM F-58

Good

Over: CREEK

078343404, Audubon, IA

Built 2007 Load: 28.8 t ADT: 278

LOCAL

Good

Over: CREEK

079343104, Audubon, IA

Built 2001 Load: 28.9 t ADT: 30

LOCAL

Good

Over: CREEK

081341902, Audubon, IA

Built 1940 Load: 29.7 t ADT: 30

160TH ST

Good

Over: CREEK

0.5 M. E. of Nighhawk Ave, Audubon, IA

Built 2016 Load: 30.0 t ADT: 15

FM

Good

Over: CREEK

078362203, Audubon, IA

Built 2002 Load: 30.2 t ADT: 110

FM

Good

Over: CREEK

078362203, Audubon, IA

Built 2002 Load: 31.4 t ADT: 110

LOCAL

Good

Over: CREEK

081352001, Audubon, IA

Built 1994 Load: 31.5 t ADT: 26

130TH ST

Good

Over: CREEK

081341901 LOCAL RD, Audubon, IA

Built 2018 Load: 32.0 t ADT: 5

FM

Good

Over: CREEK

080342301, Audubon, IA

Built 2003 Load: 32.7 t ADT: 428

FM

Good

Over: CREEK

080342301, Audubon, IA

Built 2003 Load: 32.7 t ADT: 428

FM

Good

Over: BUCK CREEK

078362802, Audubon, IA

Built 1973 Load: 33.1 t ADT: 110

130TH ST

Good

Over: CREEK

081342001, Audubon, IA

Built 2023 Load: 33.4 t ADT: 21

F58 LITTLEFIELD DR

Good

Over: DRAINAGE DITCH

0.3 mile W. of Eagle Ave., Audubon, IA

Built 2015 Load: 34.3 t ADT: 597

LOCAL

Good

Over: ELKHORN CREEK

079363601, Audubon, IA

Built 1996 Load: 34.6 t ADT: 26

LOCAL

Good

Over: CREEK

081363504, Audubon, IA

Built 1998 Load: 34.6 t ADT: 30

FM

Good

Over: NISHNABOTNA RIVER

080353503, Audubon, IA

Built 1987 Load: 34.9 t ADT: 100

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.