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:

FM

Over: WATERMAN CREEK

097400102, O'Brien, IA

Built 1965 Load: 20.1 t ADT: 309

FM

Over: PLESSIS CREEK

097402402, O'Brien, IA

Built 1964 Load: 20.1 t ADT: 309

LOCAL

Over: FLOYD RIVER

097422101, O'Brien, IA

Built 1954 Load: 21.0 t ADT: 35

SILVER AVE

Over: NELSON CREEK

09440180210, O'Brien, IA

Built 2016 Load: 21.4 t ADT: 45

FM

Over: DRY RUN

095400605, O'Brien, IA

Built 1998 Load: 22.0 t ADT: 1,168

LOCAL SEC RD

Over: DRAINAGE WAY

094421901, O'Brien, IA

Built 2008 Load: 22.7 t ADT: 30

LOCAL SEC RD

Over: SMALL UN-NAMED CREEK

094421902, O'Brien, IA

Built 2006 Load: 22.7 t ADT: 30

LOCAL SEC RD

Over: MCCREATH CR

095391602, O'Brien, IA

Built 2001 Load: 22.7 t ADT: 15

440TH ST

Over: DRY RUN

095403301, O'Brien, IA

Built 2012 Load: 22.7 t ADT: 30

LOCAL

Over: WILLOW CREEK

096393601, O'Brien, IA

Built 2004 Load: 22.7 t ADT: 11

LOCAL

Over: SO BR LITTLE FLOYD RIVER

096411001, O'Brien, IA

Built 2002 Load: 22.7 t ADT: 5

IA 60

Over: ENGELS CREEK

1.5 mi. N of US 18, O'Brien, IA

Built 2006 Load: 22.7 t ADT: 5,300

PIERCE AVE

Over: W BR MILL CREEK

096412902, O'Brien, IA

Built 1966 Load: 23.0 t ADT: 15

450TH ST

Over: MUD CREEK

094 41 06 01, O'Brien, IA

Built 2011 Load: 23.5 t ADT: 26

FM

Over: WATERMAN CREEK

095391001, O'Brien, IA

Built 1953 Load: 24.3 t ADT: 797

FM

Over: MILL CREEK

095412001, O'Brien, IA

Built 1985 Load: 24.5 t ADT: 50

300TH ST

Over: PLESSIS CREEK

097402301, O'Brien, IA

Built 2017 Load: 25.3 t ADT: 21

LOCAL

Over: MURRAY CREEK

094391505, O'Brien, IA

Built 1991 Load: 25.6 t ADT: 11

LOCAL SEC RD

Over: DEEP CR

094421902, O'Brien, IA

Built 1989 Load: 25.9 t ADT: 30

LOCAL RD

Over: NELSON CREEK

094401702, O'Brien, IA

Built 1990 Load: 26.6 t ADT: 50

FM

Over: LANGE CR

094411702, O'Brien, IA

Built 1967 Load: 26.6 t ADT: 45

POLK AVE

Over: SO BR LITTLE FLOYD RIVER

096410902, O'Brien, IA

Built 2015 Load: 26.6 t ADT: 30

LOCAL

Over: SMALL UN-NAMED CREEK

094403102, O'Brien, IA

Built 1978 Load: 26.9 t ADT: 62

WARBLER AVE

Over: JORDAN CREEK

09539330210, O'Brien, IA

Built 2016 Load: 26.9 t ADT: 26

LOCAL

Over: LITTLE WATERMAN CREEK

096402502, O'Brien, IA

Built 2006 Load: 26.9 t ADT: 21

LOCAL

Over: PLESSIS CREEK

097402501, O'Brien, IA

Built 1999 Load: 27.2 t ADT: 30

FM

Over: LITTLE FLOYD RIVER

096421002, O'Brien, IA

Built 1987 Load: 27.3 t ADT: 1,337

LOCAL SEC RD

Over: DRY RUN

094400502, O'Brien, IA

Built 1949 Load: 27.6 t ADT: 21

STARLING AVE

Over: WILLOW CREEK

094 40 16 02 10, O'Brien, IA

Built 2014 Load: 27.9 t ADT: 26

SILVER AVE

Over: WILLOW CREEK

094401902, O'Brien, IA

Built 2017 Load: 27.9 t ADT: 40

480TH ST

Over: WILLOW CREEK

094 40 20 01 10, O'Brien, IA

Built 2018 Load: 27.9 t ADT: 15

SORREL AVE

Over: WILLOW CREEK

094402002, O'Brien, IA

Built 2017 Load: 27.9 t ADT: 30

420TH ST

Over: MCCREATH CREEK

095392101, O'Brien, IA

Built 2015 Load: 27.9 t ADT: 34

OLIVE AVE

Over: MUD CREEK

094420102, O'Brien, IA

Built 2012 Load: 28.2 t ADT: 41

FM

Over: JOHNSON CREEK

095412001, O'Brien, IA

Built 2000 Load: 28.2 t ADT: 50

LOCAL

Over: SO BR LITTLE FLOYD RIVER

096410802, O'Brien, IA

Built 2001 Load: 28.2 t ADT: 46

FM

Over: SMALL UN-NAMED CREEK

097391002, O'Brien, IA

Built 1988 Load: 28.2 t ADT: 509

LOCAL

Over: COLE CREEK

094410202, O'Brien, IA

Built 1998 Load: 28.5 t ADT: 35

FM

Over: SMALL UN-NAMED CREEK

096391001, O'Brien, IA

Built 1998 Load: 28.5 t ADT: 240

330TH ST

Over: SMALL UN-NAMED CREEK

096400101, O'Brien, IA

Built 2004 Load: 28.5 t ADT: 62

LOCAL

Over: SMALL UN-NAMED CREEK

096400102, O'Brien, IA

Built 1991 Load: 28.5 t ADT: 50

SORREL AVE

Over: DRY RUN

096403202, O'Brien, IA

Built 2017 Load: 28.5 t ADT: 21

500TH ST

Over: DOG CREEK

0943934, O'Brien, IA

Built 2009 Load: 29.0 t ADT: 10

LOCAL

Over: WATERMAN CREEK

097391801, O'Brien, IA

Built 1978 Load: 29.2 t ADT: 15

FM

Over: FLOYD RIVER

097410802, O'Brien, IA

Built 1986 Load: 29.5 t ADT: 489

FM

Over: WILLOW CREEK

095420602, O'Brien, IA

Built 1987 Load: 29.8 t ADT: 609

FM

Over: MILL CREEK

096413402, O'Brien, IA

Built 1971 Load: 30.0 t ADT: 459

LOCAL

Over: WATERMAN CREEK

096390601, O'Brien, IA

Built 1982 Load: 30.2 t ADT: 62

LOCAL

Over: WATERMAN CREEK

097393002, O'Brien, IA

Built 1983 Load: 30.2 t ADT: 72

LOCAL

Over: FLOYD RIVER

097410902, O'Brien, IA

Built 1981 Load: 30.2 t ADT: 30

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.