Hardin County, IA

211 public highway bridges

Hardin County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Hardin County, Iowa contains 211 public highway bridges. Roughly 29.9% are rated “Good,” 33.6% “Fair,” and 30.3% “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.

211
Total Bridges
29.9%
Good
33.6%
Fair
30.3%
Poor Condition

Condition Distribution

Good
29.9% (63)
Fair
33.6% (71)
Poor
30.3% (64)

All Bridges (211)

EB US 20

Unknown

Over: CO RD S-27

AT JUNCTION WITH SR S27, Hardin, IA

Built 1990 ADT: 545

WB US 20

Unknown

Over: CO RD S-27

AT JUNCTION WITH SR S27, Hardin, IA

Built 1990 ADT: 545

D AVENUE

Unknown

Over: US 20

2.0 MILES W OF SR S27, Hardin, IA

Built 1990 ADT: 9,600

H AVENUE

Unknown

Over: US 20

2.0 MILES E OF JCT SR S27, Hardin, IA

Built 1990 ADT: 9,400

JJ AVENUE

Unknown

Over: US 20

2.0 MILES W OF JCT US 65, Hardin, IA

Built 1990 ADT: 9,400

US 20 EB

Unknown

Over: US 65

AT JUNCTION WITH US 65, Hardin, IA

Built 2003 ADT: 1,820

US 20 WB

Unknown

Over: US 65

AT JUNCTION WITH US 65, Hardin, IA

Built 2003 ADT: 1,820

US 20 EB

Unknown

Over: D 35 (ELM ST)

3.4 MILES E OF JCT US 65, Hardin, IA

Built 2003 ADT: 125

US 20 WB

Unknown

Over: D 35 (ELM ST)

3.4 MILES E OF JCT US 65, Hardin, IA

Built 2003 ADT: 125

V AVENUE

Unknown

Over: US 20

2.4 MILES W OF JCT SR S56, Hardin, IA

Built 2003 ADT: 9,300

T AVENUE

Unknown

Over: US 20

1.2 MILES E OF JCT SR D35, Hardin, IA

Built 2003 ADT: 9,300

D35

Unknown

Over: US 20

AT JUNCTION SR D35, Hardin, IA

Built 2003 ADT: 9,000

S 56

Unknown

Over: US 20

AT JUNCTION WITH SR S56, Hardin, IA

Built 2003 ADT: 9,500

290TH ST

Fair

Over: CREEK

086191101, Hardin, IA

Built 2000 Load: 13.2 t ADT: 69

FM

Fair

Over: BEAR CREEK

086190202, Hardin, IA

Built 1985 Load: 15.3 t ADT: 15

LOCAL

Fair

Over: HONEY CREEK

087222501, Hardin, IA

Built 1983 Load: 15.8 t ADT: 15

FM

Fair

Over: BEAR CREEK

087193502, Hardin, IA

Built 1986 Load: 15.9 t ADT: 20

LOCAL

Fair

Over: TIPTON CREEK

088223302, Hardin, IA

Built 1900 Load: 16.0 t ADT: 25

LOCAL

Fair

Over: SMALL STREAM

089221701, Hardin, IA

Built 1987 Load: 17.8 t ADT: 26

HIDDEN VALLY DR

Fair

Over: ELK RUN

000000000, Hardin, IA

Built 1977 Load: 18.1 t ADT: 66

FM

Fair

Over: BEAR CREEK

086190907, Hardin, IA

Built 1900 Load: 18.5 t ADT: 59

LOCAL

Fair

Over: CREEK

086190201, Hardin, IA

Built 1990 Load: 18.7 t ADT: 20

LOCAL

Fair

Over: CREEK

089223204, Hardin, IA

Built 1987 Load: 19.8 t ADT: 30

LOCAL

Fair

Over: SOUTH FORK

089220607, Hardin, IA

Built 1981 Load: 20.3 t ADT: 16

LOCAL

Fair

Over: SO.FK. IOWA RIVER

089222801, Hardin, IA

Built 1990 Load: 22.6 t ADT: 26

FM

Fair

Over: SMALL

088193602, Hardin, IA

Built 1983 Load: 23.2 t ADT: 34

FM

Fair

Over: CREEK

087191404, Hardin, IA

Built 1988 Load: 24.3 t ADT: 39

FM

Fair

Over: CREEK

086190513, Hardin, IA

Built 1967 Load: 24.5 t ADT: 285

LOCAL

Fair

Over: HONEY CREEK

087222301, Hardin, IA

Built 1980 Load: 24.8 t ADT: 26

LOCAL

Fair

Over: CREEK

086211204, Hardin, IA

Built 1956 Load: 25.1 t ADT: 41

LOCAL

Fair

Over: IOWA RIVER

088200205, Hardin, IA

Built 1983 Load: 25.1 t ADT: 41

FM

Fair

Over: CREEK

088190204, Hardin, IA

Built 1985 Load: 25.3 t ADT: 5

FM

Fair

Over: BEAVER CREEK

088200804, Hardin, IA

Built 1982 Load: 25.3 t ADT: 15

LOCAL

Fair

Over: IA RIVER

088220304, Hardin, IA

Built 1957 Load: 25.4 t ADT: 26

LOCAL

Fair

Over: CREEK

087201106, Hardin, IA

Built 1959 Load: 25.5 t ADT: 20

FM

Fair

Over: CREEK

088190304, Hardin, IA

Built 1970 Load: 25.7 t ADT: 1,493

FM

Fair

Over: ELK CREEK

088192707, Hardin, IA

Built 1964 Load: 25.7 t ADT: 491

FM

Fair

Over: CREEK

086203302, Hardin, IA

Built 1921 Load: 25.9 t ADT: 147

FM

Fair

Over: BEAVER CREEK

088200701, Hardin, IA

Built 1942 Load: 26.6 t ADT: 44

LOCAL

Fair

Over: HONEY CREEK

086210302, Hardin, IA

Built 1963 Load: 26.7 t ADT: 16

LOCAL

Fair

Over: SOUTH FORK IOWA RIVER

087202604, Hardin, IA

Built 1986 Load: 27.3 t ADT: 21

LOCAL

Fair

Over: HONEY CREEK

087222402, Hardin, IA

Built 1985 Load: 28.4 t ADT: 51

LOCAL

Fair

Over: HONEY CREEK

086210202, Hardin, IA

Built 1981 Load: 29.0 t ADT: 51

LOCAL

Fair

Over: CREEK

086220103, Hardin, IA

Built 1989 Load: 29.5 t ADT: 51

LOCAL

Fair

Over: SOUTH FORK IOWA RIVER

087201703, Hardin, IA

Built 1985 Load: 29.8 t ADT: 35

LOCAL

Fair

Over: SOUTH FORK IOWA RIVER

088212004, Hardin, IA

Built 1980 Load: 30.2 t ADT: 47

FM

Fair

Over: IOWA RIVER

088201205, Hardin, IA

Built 1982 Load: 30.7 t ADT: 47

FM

Fair

Over: IOWA RIVER

086190907, Hardin, IA

Built 1978 Load: 30.8 t ADT: 59

FM

Fair

Over: CREEK

089211105, Hardin, IA

Built 1982 Load: 30.8 t ADT: 442

FM

Fair

Over: TIPTON CREEK

087211701, Hardin, IA

Built 1968 Load: 31.3 t ADT: 236

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.