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)

US 20

Good

Over: DD 9 & 13

3.0 mi. E of Jct. IA 4, Calhoun, IA

Built 2008 Load: 32.7 t ADT: 6,900

LOCAL

Good

Over: CAMP CREEK

088342801, Calhoun, IA

Built 1980 Load: 33.0 t ADT: 20

LOCAL

Good

Over: PURGATORY CREEK

087321401, Calhoun, IA

Built 1990 Load: 35.6 t ADT: 5

FM

Good

Over: CAMP CREEK

088343201, Calhoun, IA

Built 1992 Load: 36.4 t ADT: 45

LOCAL

Good

Over: PRAIRIE CREEK 319

086341102, Calhoun, IA

Built 2007 Load: 41.8 t ADT: 34

FM

Good

Over: DD NO. 12

088312202, Calhoun, IA

Built 1990 Load: 45.4 t ADT: 180

LOCAL

Good

Over: LAKE CREEK

088320801, Calhoun, IA

Built 1990 Load: 45.4 t ADT: 20

LOCAL

Good

Over: HARDIN CREEK

086311101, Calhoun, IA

Built 1994 Load: 45.7 t ADT: 40

LOCAL

Good

Over: PRARIE CREEK

086341005, Calhoun, IA

Built 1991 Load: 45.7 t ADT: 139

FM

Good

Over: PRARIE CREEK

086341504, Calhoun, IA

Built 1993 Load: 45.7 t ADT: 50

LOCAL

Good

Over: EAST CEDAR CREEK

087310301, Calhoun, IA

Built 2003 Load: 45.7 t ADT: 34

FM

Good

Over: HARDIN CREEK

087313501, Calhoun, IA

Built 2003 Load: 45.7 t ADT: 26

FM

Good

Over: PURGATORY CREEK

087322302, Calhoun, IA

Built 2006 Load: 45.7 t ADT: 469

FM

Good

Over: DD NO. 12

088312202, Calhoun, IA

Built 1990 Load: 45.7 t ADT: 180

FM

Good

Over: DD NO. 12

088312704, Calhoun, IA

Built 1998 Load: 45.7 t ADT: 180

INWOOD

Good

Over: DREDGE DITCH

088331902, Calhoun, IA

Built 2000 Load: 45.7 t ADT: 15

FM

Good

Over: DD NO. 1

088341002, Calhoun, IA

Built 1993 Load: 45.7 t ADT: 20

FM

Good

Over: D D 1-54

088341502, Calhoun, IA

Built 1994 Load: 45.7 t ADT: 26

FM

Good

Over: CAMP CR TRIB.

088343402, Calhoun, IA

Built 1994 Load: 45.7 t ADT: 60

FM

Good

Over: PURGATORY CREEK

086322004, Calhoun, IA

Built 1992 Load: 48.2 t ADT: 40

LOCAL

Good

Over: CEDAR CREEK

087310202, Calhoun, IA

Built 1994 Load: 48.2 t ADT: 40

LOCAL

Good

Over: LAKE CREEK

087321902, Calhoun, IA

Built 1992 Load: 48.2 t ADT: 110

LOCAL

Good

Over: LIZARD CREEK

089311101, Calhoun, IA

Built 1991 Load: 48.2 t ADT: 40

FM

Good

Over: EAST CEDAR CREEK

087311001, Calhoun, IA

Built 1996 Load: 50.0 t ADT: 26

IA 4

Good

Over: E BR LAKE CREEK

3.5 mi. N of N jct IA 175, Calhoun, IA

Built 1991 Load: 51.8 t ADT: 1,120

LOCAL

Good

Over: CAMP CREEK

086340505, Calhoun, IA

Built 2006 Load: 52.9 t ADT: 26

LOCAL

Good

Over: LAKE CREEK

086342305, Calhoun, IA

Built 1995 Load: 52.9 t ADT: 50

LOCAL

Poor

Over: D.D. NO.198

086340101, Calhoun, IA

Built 1900 ADT: 20

LOCAL

Poor

Over: DD. NO 31

087310601, Calhoun, IA

Built 1971 ADT: 15

LOCAL

Poor

Over: SOUTH BRANCH LIZARD

089310301, Calhoun, IA

Built 1957 ADT: 20

LOCAL

Poor

Over: BIG CEDAR CR DD 181

089340401, Calhoun, IA

Built 1900 ADT: 15

FM

Poor

Over: CALHOUN CO DD

089320801, Calhoun, IA

Built 1976 Load: 4.1 t ADT: 45

LOCAL

Poor

Over: DD 65

088322902, Calhoun, IA

Built 1929 Load: 11.9 t ADT: 20

LOCAL

Poor

Over: W CEDAR CR.

088313001, Calhoun, IA

Built 1900 Load: 12.0 t ADT: 5

LOCAL

Poor

Over: PRAIRIE CREEK

086340201, Calhoun, IA

Built 1980 Load: 12.9 t ADT: 30

LOCAL

Poor

Over: E CEDAR CR.

088311501, Calhoun, IA

Built 1980 Load: 13.7 t ADT: 15

180TH ST

Poor

Over: DD 88

089321601, Calhoun, IA

Built 1900 Load: 14.0 t ADT: 26

FM

Poor

Over: E.CEDAR CR.

087313202, Calhoun, IA

Built 1938 Load: 14.1 t ADT: 20

LOCAL

Poor

Over: DD NO 83

088311801, Calhoun, IA

Built 1900 Load: 14.1 t ADT: 30

LOCAL

Poor

Over: D.D. NO 20

087322701, Calhoun, IA

Built 1900 Load: 14.3 t ADT: 40

LOCAL

Poor

Over: DD 1-54

088342101, Calhoun, IA

Built 1900 Load: 15.1 t ADT: 26

LOCAL

Poor

Over: DD 13

088323304, Calhoun, IA

Built 1974 Load: 16.0 t ADT: 20

LOCAL

Poor

Over: DD 2

089332204, Calhoun, IA

Built 1975 Load: 16.2 t ADT: 26

FM

Poor

Over: DD 82

086313201, Calhoun, IA

Built 1938 Load: 16.3 t ADT: 11

FM

Poor

Over: CEDAR CREEK

086323501, Calhoun, IA

Built 1938 Load: 17.0 t ADT: 34

FM

Poor

Over: DD

088321901, Calhoun, IA

Built 1973 Load: 17.1 t ADT: 30

LOCAL

Poor

Over: N FORK CAMP CR

088341102, Calhoun, IA

Built 1900 Load: 17.4 t ADT: 26

LOCAL

Poor

Over: D.D.

087333102, Calhoun, IA

Built 1957 Load: 18.5 t ADT: 15

LOCAL

Poor

Over: DD 20

088322402, Calhoun, IA

Built 1948 Load: 18.5 t ADT: 26

LOCAL

Poor

Over: D.D.

087340803, Calhoun, IA

Built 1900 Load: 18.8 t ADT: 20

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.