Carroll County, IA

223 public highway bridges

Carroll County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Carroll County, Iowa contains 223 public highway bridges. Roughly 48.4% are rated “Good,” 43.5% “Fair,” and 7.6% “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.

223

Total Bridges

48.4%

Good

43.5%

Fair

7.6%

Poor Condition

Condition Distribution

Good

48.4% (108)

Fair

43.5% (97)

Poor

7.6% (17)

All Bridges (223)

Sort:

US 71

Over: UP RR & RD

0.2 mi. S of Jct. U.S. 30, Carroll, IA

Built 1988 ADT: 100

LOCAL

Over: FIELD STREAM

083363602, Carroll, IA

Built 1966 Load: 6.3 t ADT: 11

FM

Over: NORTH RACOON RIVER

085332106https://siims.io, Carroll, IA

Built 1925 Load: 10.6 t ADT: 40

LOCAL

Over: BRUSHY FORK CREEK

082342604, Carroll, IA

Built 1951 Load: 12.0 t ADT: 15

M68 DELTA AVE

Over: FIELD STREAM

082362202, Carroll, IA

Built 1952 Load: 13.2 t ADT: 100

FM

Over: FIELD STREAM

082360601, Carroll, IA

Built 1962 Load: 13.4 t ADT: 89

LOCAL

Over: FIELD STREAM

084361301, Carroll, IA

Built 1938 Load: 13.7 t ADT: 5

LOCAL

Over: ELK RUN

085341107, Carroll, IA

Built 1900 Load: 15.4 t ADT: 34

LOCAL

Over: BRUSHY FORK CREEK

082341703, Carroll, IA

Built 1971 Load: 15.5 t ADT: 15

FM

Over: FIELD STREAM

084361302, Carroll, IA

Built 1900 Load: 15.7 t ADT: 71

FM

Over: FIELD STREAM

084342302, Carroll, IA

Built 1964 Load: 15.9 t ADT: 687

LOCAL

Over: FIELD STREAM

082332302, Carroll, IA

Built 1972 Load: 16.1 t ADT: 50

FM

Over: WEST NISHNABOTNA RIVER

083363501, Carroll, IA

Built 1991 Load: 16.1 t ADT: 45

LOCAL

Over: FIELD STREAM

085351502, Carroll, IA

Built 1993 Load: 16.1 t ADT: 45

FM

Over: NORTH RACOON RIVER

085330801, Carroll, IA

Built 1940 Load: 16.2 t ADT: 71

LOCAL

Over: MIDDLE RACCOON RIVER

082331706, Carroll, IA

Built 1963 Load: 17.0 t ADT: 34

FM

Over: BRUSHY FORK CREEK

082343602, Carroll, IA

Built 1959 Load: 17.0 t ADT: 45

LOCAL

Over: FIELD STREAM

084340403, Carroll, IA

Built 1968 Load: 17.2 t ADT: 120

LOCAL

Over: WEST NISHNABOTNA RIVER

082360902, Carroll, IA

Built 1959 Load: 17.5 t ADT: 60

LOCAL

Over: WEST NISHNABOTNA RIVER

082360301, Carroll, IA

Built 1962 Load: 17.7 t ADT: 40

LOCAL

Over: WEST NISHNABOTNA RIVER

082360901, Carroll, IA

Built 1965 Load: 17.7 t ADT: 11

FM

Over: PURGATORY CREEK

084330103, Carroll, IA

Built 1961 Load: 17.7 t ADT: 34

LOCAL

Over: PURGATORY CREEK

085332501, Carroll, IA

Built 1963 Load: 17.7 t ADT: 29

LOCAL

Over: FIELD STREAM

083341002, Carroll, IA

Built 1961 Load: 17.9 t ADT: 89

LOCAL

Over: BRUSHY FORK CREEK

083352104, Carroll, IA

Built 1962 Load: 17.9 t ADT: 71

LOCAL

Over: FIELD STREAM

085363202, Carroll, IA

Built 1971 Load: 17.9 t ADT: 50

FM

Over: ELK RUN CREEK

085340302, Carroll, IA

Built 1965 Load: 18.3 t ADT: 89

FM

Over: NISHNABOTNA RIVER

082353303, Carroll, IA

Built 1900 Load: 18.8 t ADT: 45

LOCAL

Over: MIDDLE RACCOON RIVER

084343507, Carroll, IA

Built 1963 Load: 19.3 t ADT: 50

FM

Over: FIELD STREAM

084360102, Carroll, IA

Built 1936 Load: 19.3 t ADT: 40

LOCAL

Over: PURGATORY CREEK

085332503, Carroll, IA

Built 1900 Load: 19.5 t

FM

Over: PURGATORY CREEK

085331201, Carroll, IA

Built 1977 Load: 19.9 t ADT: 60

FM

Over: BEAVER CREEK

082343602, Carroll, IA

Built 1955 Load: 20.0 t ADT: 45

LOCAL

Over: FIELD STREAM

082362103, Carroll, IA

Built 1975 Load: 20.0 t ADT: 40

LOCAL

Over: WEST NISHNABOTNA RIVER

083362701, Carroll, IA

Built 1958 Load: 20.0 t ADT: 29

FM

Over: MARROWBONE CREEK

085330701, Carroll, IA

Built 1959 Load: 20.0 t ADT: 110

LOCAL

Over: ELK RUN

085341206, Carroll, IA

Built 1958 Load: 20.0 t ADT: 50

FM

Over: BEAMAN CREEK

085360602, Carroll, IA

Built 1900 Load: 20.0 t ADT: 748

FM

Over: FIELD STREAM

085363602, Carroll, IA

Built 1959 Load: 20.0 t ADT: 34

LOCAL

Over: SPRING BRANCH

083340804, Carroll, IA

Built 1966 Load: 20.2 t ADT: 71

LOCAL

Over: FIELD STREAM

083343402, Carroll, IA

Built 1967 Load: 20.2 t ADT: 29

LOCAL

Over: DOE BRANCH CREEK

084332301, Carroll, IA

Built 1965 Load: 20.2 t ADT: 71

LOCAL

Over: ELK RUN CREEK

085340502, Carroll, IA

Built 1975 Load: 20.4 t ADT: 29

LOCAL

Over: DRAINAGE DITCH #73

083340705, Carroll, IA

Built 1982 Load: 20.9 t ADT: 11

LOCAL

Over: FIELD STREAM

082340303, Carroll, IA

Built 1960 Load: 21.1 t ADT: 29

LOCAL

Over: WEST NISHNABOTNA RIVER

082363102, Carroll, IA

Built 1968 Load: 21.4 t ADT: 79

LOCAL

Over: FIELD STREAM

083361602, Carroll, IA

Built 1977 Load: 21.4 t ADT: 11

FM

Over: BRUSHY FORK CREEK

084362402, Carroll, IA

Built 1976 Load: 21.4 t ADT: 50

LOCAL

Over: FIELD STREAM

083340702, Carroll, IA

Built 1900 Load: 22.2 t ADT: 79

LOCAL

Over: SPRING BRANCH CREEK

083341504, Carroll, IA

Built 1981 Load: 22.6 t ADT: 60

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.