Calhoun County, IA

171 public highway bridges

Calhoun County Bridge Snapshot

Calhoun County, Iowa contains 171 public highway bridges in the FHWA National Bridge Inventory. Roughly 24% are rated “Good,” 49.1% “Fair,” 25.7% “Poor,” and 25.7% are classified as structurally deficient — the federal designation for spans whose deck, superstructure, or substructure has been rated 4 or below on the 0–9 NBI scale. Structurally deficient does not mean unsafe to cross; it means the bridge is on the priority list for repair or replacement.

Inspections in IA are conducted by certified engineers from the state Department of Transportation on a 24-month cycle, and results are reported back to the FHWA each spring. The list below shows every NBI-tracked bridge in the county, sorted by inventory load rating. Use the “Sort by” controls to surface the lowest-rated spans first, and click any row for full inspection history, traffic counts, and condition trends.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

171
Total Bridges
24%
Good
25.7%
Poor
25.7%
Structurally Deficient

Condition Distribution

Good
24% (41)
Fair
49.1% (84)
Poor
25.7% (44)
SD
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: DD 65

088322902, Calhoun, IA

Built 1929 Load: 11.9 t ADT: 20

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

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: D.D.

087340803, Calhoun, IA

Built 1900 Load: 18.8 t ADT: 20

LOCAL

Poor

Over: DD 37

089341102, Calhoun, IA

Built 1960 Load: 18.9 t ADT: 26

LOCAL

Poor

Over: CAMP CR.

087340503, Calhoun, IA

Built 1900 Load: 19.3 t ADT: 20

LOCAL

Poor

Over: D.D. NO 83

088310701, Calhoun, IA

Built 1900 Load: 21.2 t ADT: 15

LOCAL

Poor

Over: DD 9-13

089321502, Calhoun, IA

Built 1900 Load: 21.2 t ADT: 40

LOCAL

Poor

Over: LAKE CREEK

089323501, Calhoun, IA

Built 1917 Load: 21.4 t ADT: 20

LOCAL

Poor

Over: PURGATORY CR.

088322601, Calhoun, IA

Built 1971 Load: 25.0 t ADT: 11

FM

Poor

Over: DD 9-13

088320503, Calhoun, IA

Built 1966 Load: 27.1 t ADT: 290

FM

Poor

Over: DRAINAGE

087333101, Calhoun, IA

Built 1975 Load: 27.4 t ADT: 26

Read our methodology — how this data is sourced, computed, and verified.

Related

Browse all → | Rankings →
Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial