O'Brien County, IA

229 public highway bridges

O'Brien County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, O'Brien County, Iowa contains 229 public highway bridges. Roughly 52.4% are rated “Good,” 40.6% “Fair,” and 4.8% “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.

229

Total Bridges

52.4%

Good

40.6%

Fair

4.8%

Poor Condition

Condition Distribution

Good

52.4% (120)

Fair

40.6% (93)

Poor

4.8% (11)

All Bridges (229)

Sort:

LOCAL

Over: LAKE CREEK

095400902, O'Brien, IA

Built 2006 Load: 22.7 t ADT: 30

LOCAL

Over: SWEENEY CREEK

096 42 02 01, O'Brien, IA

Built 2013 Load: 22.7 t ADT: 50

LOCAL

Over: FLOYD RIVER OVERFLOW

097421502, O'Brien, IA

Built 1933 Load: 22.7 t ADT: 26

LOCAL

Over: MUD CREEK

094410502, O'Brien, IA

Built 1950 Load: 23.3 t ADT: 72

LOCAL

Over: FLOYD RIVER

097410702, O'Brien, IA

Built 1939 Load: 23.7 t ADT: 26

LOCAL

Over: W BR MILL CREEK

096413201, O'Brien, IA

Built 1947 Load: 24.0 t ADT: 30

LOCAL

Over: MILL CREEK

094412901, O'Brien, IA

Built 1970 Load: 24.9 t ADT: 46

LOCAL

Over: LAKE CREEK

095400801, O'Brien, IA

Built 1979 Load: 24.9 t ADT: 26

US 59

Over: BRANCH FLOYD RIVER

1.9 mi. N of N jct. US 18, O'Brien, IA

Built 1976 Load: 25.1 t ADT: 1,320

LOCAL

Over: W BR MILL CREEK

096413301, O'Brien, IA

Built 1928 Load: 25.3 t ADT: 15

FM

Over: SMALL UN-NAMED CREEK

097391202, O'Brien, IA

Built 1935 Load: 25.3 t ADT: 34

FM

Over: HENRY CREEK

094392405, O'Brien, IA

Built 1950 Load: 25.9 t ADT: 45

LOCAL

Over: WILLOW CR

094412501, O'Brien, IA

Built 1978 Load: 26.6 t ADT: 11

FM

Over: FLOYD RIVER

097411001, O'Brien, IA

Built 1969 Load: 26.6 t ADT: 45

FM

Over: LITTLE FLOYD RIVER

097413102, O'Brien, IA

Built 1968 Load: 26.6 t ADT: 409

US 59

Over: MILL CREEK

4.2 mi. N of N Jct IA 10, O'Brien, IA

Built 1973 Load: 27.7 t ADT: 940

FM

Over: NO FOLK FLOYD RIVER

097410901, O'Brien, IA

Built 1994 Load: 28.2 t ADT: 71

FM

Over: MILL CREEK

095410401, O'Brien, IA

Built 1984 Load: 29.0 t ADT: 1,087

FM

Over: DRY RUN

095412702, O'Brien, IA

Built 1961 Load: 30.4 t ADT: 917

FM

Over: LITTLE FLOYD RIVER

096420610, O'Brien, IA

Built 1963 Load: 30.4 t ADT: 609

FM

Over: MUD CREEK

094411701, O'Brien, IA

Built 1968 Load: 30.6 t ADT: 71

LOCAL SEC RD

Over: BARRY CREEK

095392102, O'Brien, IA

Built 1900 Load: 32.4 t ADT: 41

LOCAL

Over: SMALL UN-NAMED CREEK

094403102, O'Brien, IA

Built 1974 Load: 32.7 t ADT: 62

LOCAL

Over: SMALL UN-NAMED CREEK

094403202, O'Brien, IA

Built 1973 Load: 32.7 t ADT: 35

LOCAL

Over: W BR WHISKEY CREEK

094413102, O'Brien, IA

Built 1978 Load: 32.7 t ADT: 21

LOCAL

Over: BARRY CREEK

095392801, O'Brien, IA

Built 1980 Load: 32.7 t ADT: 41

LOCAL

Over: MCCREATH CREEK

095392801, O'Brien, IA

Built 1980 Load: 32.7 t ADT: 41

FM

Over: STOFFERAN CREEK

095420301, O'Brien, IA

Built 1971 Load: 32.7 t ADT: 968

FM

Over: WILLOW CREEK

095420801, O'Brien, IA

Built 1972 Load: 32.7 t ADT: 828

FM

Over: LITTLE WATERMAN CREEK

096402301, O'Brien, IA

Built 1955 Load: 32.7 t ADT: 300

FM

Over: WATERMAN CREEK

097401101, O'Brien, IA

Built 2004 Load: 32.7 t ADT: 30

FM

Over: ENGELS CREEK

097422302, O'Brien, IA

Built 1925 Load: 32.7 t ADT: 199

ORIOLE AVE

Over: GRASS WATERWAY

096410702, O'Brien, IA

Built 1965 Load: 32.7 t ADT: 409

US 18

Over: STREAM

1.6 mi. W of jct. SR M12, O'Brien, IA

Built 1958 Load: 32.7 t ADT: 3,530

FM

Over: MUD CREEK

094420302, O'Brien, IA

Built 2002 Load: 34.0 t ADT: 878

330TH ST

Over: LITTLE FLOYD RIVER

096 42 01 10, O'Brien, IA

Built 2011 Load: 34.0 t ADT: 46

IA 10

Over: DRY RUN

0.2 mi. W of W jct. US 59, O'Brien, IA

Built 1969 Load: 35.6 t ADT: 1,610

FM

Over: MILL CREEK

094411501, O'Brien, IA

Built 1970 Load: 37.7 t ADT: 71

FM

Over: MILL CREEK

094413402, O'Brien, IA

Built 1979 Load: 38.2 t ADT: 538

FM

Over: WHISKEY CREEK

094413201, O'Brien, IA

Built 1990 Load: 38.6 t ADT: 159

FM

Over: GINGER CREEK

095402901, O'Brien, IA

Built 1928 Load: 39.9 t ADT: 180

FM

Over: STOFFERAN CREEK

095420302, O'Brien, IA

Built 1976 Load: 41.8 t ADT: 1,277

FM

Over: WATERMAN CREEK

097400102, O'Brien, IA

Built 1977 Load: 41.8 t ADT: 309

LOCAL

Over: SEWER CREEK

096390102, O'Brien, IA

Built 1983 Load: 42.1 t ADT: 30

LOCAL SEC RD

Over: LANGE CREEK NORTH

094422402, O'Brien, IA

Built 1998 Load: 43.3 t ADT: 26

OAK HILL AVE

Over: LITTLE FLOYD RIVER

96240201, O'Brien, IA

Built 2020 Load: 43.9 t ADT: 26

LOCAL

Over: MILL CREEK

096412601, O'Brien, IA

Built 1989 Load: 48.0 t ADT: 21

FM

Over: WILLOW CREEK

094413601, O'Brien, IA

Built 2003 Load: 52.9 t ADT: 259

420TH ST

Over: BARRY CREEK

095 39 20 01, O'Brien, IA

Built 2011 Load: 18.8 t ADT: 71

LOCAL

Over: WEST BRANCH MILL CREEK

096412901, O'Brien, IA

Built 1966 Load: 20.1 t ADT: 46

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.