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)

280TH ST

Good

Over: CREEK

LOCAL 078340503, Audubon, IA

Built 2012 Load: 35.6 t ADT: 91

270 ST

Good

Over: INDIAN CREEK

079363003, Audubon, IA

Built 2000 Load: 35.6 t ADT: 72

150 ST

Good

Over: E NISHNABOTNA RIVER

081343101, Audubon, IA

Built 2000 Load: 35.6 t ADT: 29

FM F-65

Good

Over: TROUBLESOME CR

078353505, Audubon, IA

Built 1989 Load: 36.6 t ADT: 34

FM

Good

Over: BEAVER CREEK

081340202, Audubon, IA

Built 1994 Load: 36.8 t ADT: 20

FM

Good

Over: CREEK

081363501, Audubon, IA

Built 2006 Load: 36.9 t ADT: 409

FM

Good

Over: INDIAN CREEK

079362202, Audubon, IA

Built 1996 Load: 37.2 t ADT: 45

LOCAL

Good

Over: E NISHNABOTNA RIVER

078350501, Audubon, IA

Built 1996 Load: 37.6 t ADT: 41

KINGBIRD AVE

Good

Over: BR NISHNABOTNA RIVER

1.5 Mile N. of Co Hwy F32, Audubon, IA

Built 2016 Load: 37.6 t ADT: 34

LARK AVE

Good

Over: CREEK

FM 80353606, Audubon, IA

Built 2017 Load: 37.6 t ADT: 60

LOCAL

Good

Over: TROUBLESOME CREEK

078352403, Audubon, IA

Built 1994 Load: 37.9 t ADT: 26

IA 173

Good

Over: INDIAN CREEK

0.5 MI. S OF Jct. IA 44, Audubon, IA

Built 2003 Load: 38.2 t ADT: 1,360

305TH ST

Good

Over: TROUBLESOME CREEK

078340707, Audubon, IA

Built 2021 Load: 38.2 t ADT: 51

140TH ST

Good

Over: CREEK

081362501, Audubon, IA

Built 2013 Load: 38.2 t ADT: 35

US 71

Good

Over: BLUEGRASS CREEK

1.4 mi. S of Jct. SR F32, Audubon, IA

Built 2006 Load: 38.5 t ADT: 3,080

LARK AVE

Good

Over: CREEK

0.25 Mile S. Co Hwy F32, Audubon, IA

Built 2017 Load: 38.6 t ADT: 29

LARK AVE

Good

Over: BR E NISHNABOTNA R

FM 081351202, Audubon, IA

Built 2018 Load: 38.6 t ADT: 50

LOCAL

Good

Over: E NISHNABOTNA RIVER

080352501, Audubon, IA

Built 1998 Load: 38.8 t ADT: 103

130TH ST

Good

Over: CREEK

081 34 24 01, Audubon, IA

Built 2021 Load: 38.8 t ADT: 20

GOLDFINCH AVE

Good

Over: CREEK

081350702, Audubon, IA

Built 2021 Load: 38.8 t ADT: 50

FM

Good

Over: CREEK

000000000, Audubon, IA

Built 2010 Load: 40.0 t ADT: 34

FM

Good

Over: CREEK

081342502, Audubon, IA

Built 1932 Load: 40.0 t ADT: 15

N36 PHEASANT AVE

Good

Over: DAVIDS CREEK

FM 079340302, Audubon, IA

Built 2021 Load: 41.5 t ADT: 240

PHEASANT AVE

Good

Over: CREEK

081340302, Audubon, IA

Built 2019 Load: 49.7 t ADT: 35

FM

Good

Over: BEAVER CREEK

081340203, Audubon, IA

Built 1991 Load: 49.8 t ADT: 11

F58 LITTLEFIELD DR

Good

Over: CREEK

FM 078340802, Audubon, IA

Built 2005 Load: 52.9 t ADT: 548

FM

Good

Over: ELK HORN CREEK

078360405, Audubon, IA

Built 2002 Load: 55.3 t ADT: 20

FM F-58

Good

Over: CROOKED CREEK

078342702, Audubon, IA

Built 2003 Load: 58.1 t ADT: 278

LOCAL

Poor

Over: CREEK

079341603, Audubon, IA

Built 1932 ADT: 15

LOCAL

Poor

Over: E NISHNABOTNA RIVER

080351401, Audubon, IA

Built 1924 ADT: 5

FM

Poor

Over: CREEK

080361803, Audubon, IA

Built 1935 ADT: 21

LOCAL

Poor

Over: CREEK

078342601, Audubon, IA

Built 1935 Load: 2.7 t ADT: 21

LOCAL

Poor

Over: DAVIDS CREEK

079341901, Audubon, IA

Built 1964 Load: 5.4 t ADT: 30

LOCAL

Poor

Over: NISHNABOTNA RIVER

079352203, Audubon, IA

Built 1958 Load: 6.3 t ADT: 35

LOCAL

Poor

Over: CREEK

079343005, Audubon, IA

Built 1967 Load: 8.1 t ADT: 11

FM

Poor

Over: CREEK

079343003, Audubon, IA

Built 1956 Load: 9.9 t ADT: 34

LOCAL

Poor

Over: CREEK

079361108, Audubon, IA

Built 1956 Load: 10.6 t ADT: 26

270TH ST

Poor

Over: CREEK

079353101, Audubon, IA

Built 1959 Load: 11.7 t ADT: 20

FM

Poor

Over: CREEK

080351001, Audubon, IA

Built 1946 Load: 14.2 t ADT: 34

LOCAL

Poor

Over: CREEK

080361403, Audubon, IA

Built 1967 Load: 14.9 t ADT: 26

LOCAL

Poor

Over: CREEK

078342701, Audubon, IA

Built 1951 Load: 15.1 t ADT: 11

LOCAL

Poor

Over: CREEK

079362201, Audubon, IA

Built 1964 Load: 15.2 t ADT: 30

LOCAL

Poor

Over: CREEK

081351802, Audubon, IA

Built 1933 Load: 15.2 t ADT: 21

LOCAL

Poor

Over: BR BLUE GRASS CREEK

079351008, Audubon, IA

Built 1925 Load: 16.0 t ADT: 21

LOCAL

Poor

Over: CREEK

080361902, Audubon, IA

Built 1926 Load: 16.5 t ADT: 11

LOCAL

Poor

Over: CREEK

079362501, Audubon, IA

Built 1940 Load: 16.6 t ADT: 5

LOCAL

Poor

Over: E NISHNABOTNA RIVER

081343001, Audubon, IA

Built 1971 Load: 17.1 t ADT: 26

LOCAL(SHELBY!)

Poor

Over: CREEK

079363102, Audubon, IA

Built 1928 Load: 20.4 t ADT: 21

LOCAL

Poor

Over: E NISHNABOTNA RIVER

081351101, Audubon, IA

Built 1971 Load: 20.4 t ADT: 35

LOCAL

Poor

Over: CREEK

081360702, Audubon, IA

Built 1987 Load: 20.6 t ADT: 21

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.