Calhoun County, IA

171 public highway bridges

Calhoun County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Calhoun County, Iowa contains 171 public highway bridges. Roughly 24% are rated “Good,” 49.1% “Fair,” and 25.7% “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.

171

Total Bridges

24%

Good

49.1%

Fair

25.7%

Poor Condition

Condition Distribution

Good

24% (41)

Fair

49.1% (84)

Poor

25.7% (44)

All Bridges (171)

Sort:

US 20 EB

Over: IA 4

US 20 over IA 4, Calhoun, IA

Built 2012 ADT: 1,160

US 20 WB

Over: IA 4

U.S. 20 Over IA 4, Calhoun, IA

Built 2012 ADT: 1,160

LOCAL

Over: BIG CEDAR CR D D 181

089342802, Calhoun, IA

Built 1921 Load: 13.7 t ADT: 20

LOCAL

Over: CAMP CREEK

087340501, Calhoun, IA

Built 1990 Load: 15.1 t ADT: 20

FM

Over: PURGATORY

086333601, Calhoun, IA

Built 1938 Load: 16.1 t ADT: 34

LOCAL

Over: BIG CEDAR CR D D 181

089343202, Calhoun, IA

Built 1961 Load: 16.8 t ADT: 15

LOCAL

Over: LAKE CREEK

087333402, Calhoun, IA

Built 1955 Load: 17.2 t ADT: 26

LOCAL

Over: DD 12

089313601, Calhoun, IA

Built 1973 Load: 17.2 t ADT: 34

FM

Over: WEST CEDAR

087310701, Calhoun, IA

Built 1955 Load: 18.2 t ADT: 5

FM

Over: E CEDAR CREEK

087313201, Calhoun, IA

Built 1956 Load: 18.5 t ADT: 11

LOCAL

Over: LAKE CR

087321701, Calhoun, IA

Built 1964 Load: 19.2 t ADT: 34

FM

Over: PURGATORY CREEK

087321101, Calhoun, IA

Built 1955 Load: 21.5 t ADT: 26

LOCAL

Over: D.D. NO 20

086320901, Calhoun, IA

Built 1972 Load: 21.9 t ADT: 34

LOCAL

Over: LAKE CREEK

087320503, Calhoun, IA

Built 1967 Load: 22.3 t ADT: 26

LOCAL

Over: LAKE CR.

087332501, Calhoun, IA

Built 1965 Load: 22.3 t ADT: 15

FM

Over: DD NO. 1

089331901, Calhoun, IA

Built 1964 Load: 22.4 t ADT: 219

LOCAL

Over: D D 67

088343502, Calhoun, IA

Built 1971 Load: 23.1 t ADT: 11

FM

Over: DD 13

088322201, Calhoun, IA

Built 1972 Load: 23.5 t ADT: 26

FM

Over: PURGATORY CREEK

087322301, Calhoun, IA

Built 1965 Load: 24.9 t ADT: 150

FM

Over: LAKE CREEK

087333401, Calhoun, IA

Built 1967 Load: 26.3 t ADT: 20

IA 7

Over: OVER CC RR

0.8 mi. E of SR P19, Calhoun, IA

Built 1974 Load: 27.1 t ADT: 2,560

FM

Over: DD #65

088321802, Calhoun, IA

Built 1987 Load: 27.2 t ADT: 957

FM

Over: DD NO. 83

088311901, Calhoun, IA

Built 1972 Load: 28.0 t ADT: 15

LOCAL

Over: DD NO 12

089312102, Calhoun, IA

Built 1976 Load: 28.0 t ADT: 60

OLD US 20

Over: CAMP CREEK

088342101, Calhoun, IA

Built 1992 Load: 28.2 t ADT: 609

FM

Over: DD 9-13

088322001, Calhoun, IA

Built 1973 Load: 28.6 t ADT: 20

LOCAL

Over: DD NO 12

089312702, Calhoun, IA

Built 1973 Load: 28.6 t ADT: 45

LOCAL

Over: CEDAR CREEK

086322601, Calhoun, IA

Built 1980 Load: 29.8 t ADT: 11

LOCAL

Over: LAKE CREEK

087320803, Calhoun, IA

Built 1974 Load: 30.2 t ADT: 11

LOCAL

Over: D D 181

089340901, Calhoun, IA

Built 1979 Load: 30.2 t ADT: 26

FM

Over: HARDING CREEK

086313501, Calhoun, IA

Built 1976 Load: 30.4 t ADT: 15

FM

Over: DD 195

086342702, Calhoun, IA

Built 1969 Load: 30.4 t ADT: 80

LOCAL

Over: E.CEDAR CR.

087311002, Calhoun, IA

Built 1978 Load: 30.4 t ADT: 30

LOCAL

Over: E CEDAR CREEK

087312102, Calhoun, IA

Built 1966 Load: 30.4 t ADT: 30

LOCAL

Over: CAMP CREEK

087340401, Calhoun, IA

Built 1974 Load: 30.4 t ADT: 15

LOCAL

Over: CAMP CREEK

087340402, Calhoun, IA

Built 1974 Load: 30.4 t ADT: 11

LOCAL

Over: CAMP CR

087340902, Calhoun, IA

Built 1970 Load: 30.4 t ADT: 15

LOCAL

Over: DD NO. 12

088312201, Calhoun, IA

Built 1971 Load: 30.4 t ADT: 20

LOCAL

Over: DD 9-13

089322601, Calhoun, IA

Built 1973 Load: 30.4 t ADT: 20

FM

Over: LIZARD CREEK SO BRANCH

089311202, Calhoun, IA

Built 1969 Load: 30.6 t ADT: 240

LOCAL

Over: HARDIN CREEK DD#95

086310201, Calhoun, IA

Built 1982 Load: 31.2 t ADT: 15

LOCAL

Over: D D NO 2

088341501, Calhoun, IA

Built 1980 Load: 31.2 t ADT: 30

LOCAL

Over: DRAINAGE DITCH 1-54

089333001, Calhoun, IA

Built 1982 Load: 31.2 t ADT: 15

FM

Over: DD #1-54

089333102, Calhoun, IA

Built 1982 Load: 31.2 t ADT: 20

LOCAL

Over: PURGATORY CREEK

086322001, Calhoun, IA

Built 1985 Load: 31.5 t ADT: 11

FM

Over: RACCOON RIVER

086340602, Calhoun, IA

Built 1969 Load: 31.5 t ADT: 529

LOCAL

Over: DD #1 & 54

089333202, Calhoun, IA

Built 1987 Load: 31.5 t ADT: 20

LOCAL

Over: E. CEDAR CR

087311603, Calhoun, IA

Built 1981 Load: 31.8 t ADT: 5

LOCAL

Over: BRANCH 976 ON DD 181

089342002, Calhoun, IA

Built 1982 Load: 31.8 t ADT: 20

FM

Over: CROOKED CREEK

087340604, Calhoun, IA

Built 1982 Load: 32.7 t ADT: 1,067

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

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Compiled by PlainBridges, Independent data publisher

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.