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:

LOCAL

Over: DD#6

088330704, Calhoun, IA

Built 1974 Load: 32.7 t ADT: 45

LOCAL

Over: D.D.

088341101, Calhoun, IA

Built 1977 Load: 32.7 t ADT: 11

FM

Over: DD NO. 976

089341901, Calhoun, IA

Built 1938 Load: 32.7 t ADT: 219

LOCAL

Over: DRAINAGE DITCH 125

090313601, Calhoun, IA

Built 1900 Load: 32.7 t ADT: 60

FM

Over: CAMP CREEK

087343301, Calhoun, IA

Built 1971 Load: 32.8 t ADT: 259

LOCAL

Over: HARDING CREEK

086312601, Calhoun, IA

Built 1984 Load: 33.0 t ADT: 11

LOCAL

Over: W.CEDAR CR.

087313001, Calhoun, IA

Built 1978 Load: 33.0 t ADT: 26

FM

Over: W.CEDAR CR.

087313101, Calhoun, IA

Built 1979 Load: 33.0 t ADT: 15

FM

Over: D.D. 95

087313501, Calhoun, IA

Built 1976 Load: 33.0 t ADT: 26

FM

Over: D.D. 95

087313501, Calhoun, IA

Built 1974 Load: 33.0 t ADT: 26

LOCAL

Over: DRAINAGE DITCH

088310101, Calhoun, IA

Built 1974 Load: 33.0 t ADT: 15

LOCAL

Over: D.D. NO 12

088310301, Calhoun, IA

Built 1972 Load: 33.0 t ADT: 50

LOCAL

Over: COUNTY DRAIN #31

088311301, Calhoun, IA

Built 1984 Load: 33.0 t ADT: 11

LOCAL

Over: D.D. NO 31

088311302, Calhoun, IA

Built 1974 Load: 33.0 t ADT: 34

LOCAL

Over: WELSH SLOUGH

088312301, Calhoun, IA

Built 1974 Load: 33.0 t ADT: 20

LOCAL

Over: DD #31

088312304, Calhoun, IA

Built 1983 Load: 33.0 t ADT: 20

LOCAL RD

Over: D.D. NO 31

088312602, Calhoun, IA

Built 1974 Load: 33.0 t ADT: 34

LOCAL

Over: DD 12&22

088313402, Calhoun, IA

Built 1983 Load: 33.0 t ADT: 50

LOCAL

Over: DRAINAGE DITCH 9-13

088321701, Calhoun, IA

Built 1983 Load: 33.0 t ADT: 11

LOCAL

Over: LAKE CREEK

088321702, Calhoun, IA

Built 1985 Load: 33.0 t ADT: 34

LOCAL

Over: DD 9-13

088321702, Calhoun, IA

Built 1979 Load: 33.0 t ADT: 34

LOCAL

Over: DRAINAGE DITCH #67

088331001, Calhoun, IA

Built 1983 Load: 33.0 t ADT: 15

LOCAL

Over: DD 67

088331502, Calhoun, IA

Built 1976 Load: 33.0 t ADT: 45

LOCAL

Over: DD 67

088331602, Calhoun, IA

Built 1976 Load: 33.0 t ADT: 26

FM

Over: DD 67

088331702, Calhoun, IA

Built 1976 Load: 33.0 t ADT: 26

FM

Over: DD 67

088331901, Calhoun, IA

Built 1972 Load: 33.0 t ADT: 5

LOCAL

Over: CO DRAIN #1-54

088340901, Calhoun, IA

Built 1984 Load: 33.0 t ADT: 30

LOCAL

Over: HARDIN CREEK

086310202, Calhoun, IA

Built 1987 Load: 34.1 t ADT: 15

FM

Over: DRAINAGE DITCH(LAKE CR)

089321402, Calhoun, IA

Built 1986 Load: 34.1 t ADT: 45

LOCAL

Over: DRAINAGE DITCH 1-54

089333201, Calhoun, IA

Built 1985 Load: 34.1 t ADT: 20

LOCAL

Over: D D 92

089341802, Calhoun, IA

Built 1989 Load: 35.7 t ADT: 30

IA 4 & 175

Over: PURGATORY CREEK

2.8 mi. S of N jct IA 175, Calhoun, IA

Built 1973 Load: 35.9 t ADT: 1,410

CO RD

Over: DRAINAGE DITCH #31

088313501, Calhoun, IA

Built 1990 Load: 41.5 t ADT: 669

FM

Over: RACCOON RIVER

086342506, Calhoun, IA

Built 1985 Load: 45.3 t ADT: 90

FM

Over: DD 198

086340102, Calhoun, IA

Built 1998 Load: 45.7 t ADT: 259

IA 4 & IA 175

Over: CEDAR CREEK

2.2 mi. E of N jct SR N65, Calhoun, IA

Built 1993 Load: 47.2 t ADT: 1,040

US 20

Over: DRAINAGE DITCH NO 1 & 54

2.4 mi. E of Jct. SR N28, Calhoun, IA

Built 2010 Load: 29.1 t ADT: 5,900

LOCAL

Over: DD NO 1

089332902, Calhoun, IA

Built 1974 Load: 30.4 t ADT: 15

FM

Over: DD NO 20

087323303, Calhoun, IA

Built 1981 Load: 31.2 t ADT: 15

LOCAL

Over: CAMP CREEK

088342802, Calhoun, IA

Built 1986 Load: 31.5 t ADT: 20

380TH ST

Over: STREAM

086332501, Calhoun, IA

Built 2021 Load: 32.4 t ADT: 34

D68 390TH ST

Over: BOONE CREEK

086333301, Calhoun, IA

Built 2020 Load: 32.4 t ADT: 30

HARRIS AVE

Over: CAMP CREEK

088342502, Calhoun, IA

Built 2014 Load: 32.4 t ADT: 60

270TH ST

Over: CAMP CREEK

088343501, Calhoun, IA

Built 2005 Load: 32.7 t ADT: 609

FM

Over: RACOON RIVER

086342203, Calhoun, IA

Built 1987 Load: 32.7 t ADT: 110

FM

Over: DD NO. 46

087342202, Calhoun, IA

Built 2004 Load: 32.7 t ADT: 40

LOCAL

Over: DD#81

089343102, Calhoun, IA

Built 1986 Load: 32.7 t ADT: 11

US 20

Over: W FORK CAMP CREEK

3.1 mi. E of SR N28, Calhoun, IA

Built 2010 Load: 32.7 t ADT: 5,900

US 20 WB

Over: CC RR

4.0 mi. E of Jct. SR N65, Calhoun, IA

Built 2011 Load: 32.7 t ADT: 3,450

US 20 EB

Over: CC RR

4.0 mi. E of Jct. SR N65, Calhoun, IA

Built 2010 Load: 32.7 t ADT: 3,450

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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