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:

IA 60 SB

Over: US 18

At Jct. U.S. 18, O'Brien, IA

Built 2004 ADT: 3,150

IA 60 NB

Over: U.S. 18

At Jct. U.S. 18, O'Brien, IA

Built 2004 ADT: 3,150

NEST AVENUE

Over: IA 60

1.6 mi. S of jct. US 18, O'Brien, IA

Built 2004 ADT: 5,200

330TH STREET

Over: IA 60

1.0 mi. S of jct. US 18, O'Brien, IA

Built 2005 ADT: 5,300

MONROE AVE

Over: IA 60

2.6 mi. S of jct. US 18, O'Brien, IA

Built 2005 ADT: 5,500

LOCAL SEC RD

Over: MURRAY CR

094391602, O'Brien, IA

Built 1900 Load: 4.7 t ADT: 15

FM

Over: SMALL UN-NAMED CREEK

097391101, O'Brien, IA

Built 1996 Load: 9.3 t ADT: 30

LOCAL

Over: FLOYD RIVER

097421002, O'Brien, IA

Built 1900 Load: 11.0 t ADT: 26

LOCAL

Over: MILL CREEK

094411602, O'Brien, IA

Built 1924 Load: 11.1 t ADT: 50

LOCAL

Over: MILL CREEK

094410301, O'Brien, IA

Built 1924 Load: 12.9 t ADT: 35

LOCAL SEC RD

Over: WATERMAN CREEK

097391901, O'Brien, IA

Built 1955 Load: 14.3 t ADT: 35

LOCAL

Over: LAMKIN CREEK

096422101, O'Brien, IA

Built 1945 Load: 16.2 t ADT: 35

LOCAL SEC RD

Over: MCCREATH CR

095391701, O'Brien, IA

Built 1940 Load: 16.5 t ADT: 15

LOCAL

Over: LANGE CREEK

094411902, O'Brien, IA

Built 1954 Load: 17.2 t ADT: 62

LOCAL

Over: LITTLE WATERMAN CREEK

096402402, O'Brien, IA

Built 1940 Load: 17.5 t ADT: 30

LOCAL

Over: ENGELS CREEK

097421302, O'Brien, IA

Built 1932 Load: 17.8 t ADT: 21

FM

Over: DRAINAGE WAY

094391501, O'Brien, IA

Built 1946 Load: 18.1 t ADT: 60

LOCAL SEC RD

Over: NELSON CREEK

094412402, O'Brien, IA

Built 1941 Load: 18.1 t ADT: 41

LOCAL

Over: DRY RUN

095400701, O'Brien, IA

Built 1947 Load: 18.1 t ADT: 50

LOCAL

Over: MILL CREEK

096412401, O'Brien, IA

Built 1939 Load: 18.1 t ADT: 41

US 18

Over: STREAM

0.2 mi. W of SR M22, O'Brien, IA

Built 1959 Load: 18.1 t ADT: 3,210

LOCAL

Over: WATERMAN CREEK

094392305, O'Brien, IA

Built 1950 Load: 18.3 t ADT: 41

FM

Over: WHISKEY CREEK

094413202, O'Brien, IA

Built 1927 Load: 18.5 t ADT: 34

LOCAL

Over: MILL CREEK

096412602, O'Brien, IA

Built 1935 Load: 18.8 t ADT: 15

LOCAL

Over: OCHEYEDAN RIVER

097390102, O'Brien, IA

Built 1933 Load: 19.4 t ADT: 30

LOCAL RD

Over: LITTLE FLOYD RIVER

097412802, O'Brien, IA

Built 1959 Load: 19.4 t ADT: 50

FM

Over: DEEP CREEK

094423201, O'Brien, IA

Built 1934 Load: 19.8 t ADT: 15

REDWING AVE

Over: FLOYD RIVER

097410302, O'Brien, IA

Built 2005 Load: 19.8 t ADT: 21

FM

Over: MCCREATH CREEK

095390801, O'Brien, IA

Built 1953 Load: 20.1 t ADT: 797

FM

Over: JORDAN CREEK

095393202, O'Brien, IA

Built 1969 Load: 20.1 t ADT: 948

LOCAL

Over: GRASS WATERWAY

096410402, O'Brien, IA

Built 1954 Load: 20.1 t ADT: 50

290TH ST

Over: FLOYD RIVER

097411401, O'Brien, IA

Built 2018 Load: 20.1 t ADT: 26

FM

Over: SMALL UN-NAMED CREEK

097421201, O'Brien, IA

Built 1969 Load: 20.1 t ADT: 509

FM

Over: SMALL UN-NAMED CREEK

095410302, O'Brien, IA

Built 1992 Load: 20.1 t ADT: 917

FM

Over: SMALL UN-NAMED CREEK

095391901, O'Brien, IA

Built 1939 Load: 20.4 t ADT: 50

FM

Over: OCHEYEDAN RIVER OVERFLOW

097391201, O'Brien, IA

Built 1951 Load: 20.4 t ADT: 20

LOCAL

Over: FLOYD RIVER

097412303, O'Brien, IA

Built 2009 Load: 20.4 t ADT: 15

LOCAL

Over: NELSON CR

094412502, O'Brien, IA

Built 1938 Load: 20.7 t ADT: 15

410TH ST

Over: JOHNSON CREEK

095411801, O'Brien, IA

Built 2019 Load: 20.7 t ADT: 21

LOCAL

Over: SO BR LITTLE FLOYD RIVER

096411102, O'Brien, IA

Built 1937 Load: 21.1 t ADT: 30

LOCAL SEC RD

Over: STOFFERAN CREEK

095 42 04 02, O'Brien, IA

Built 2010 Load: 21.4 t ADT: 26

LOCAL SEC RD

Over: WILLOW CR

094401102, O'Brien, IA

Built 2001 Load: 21.7 t ADT: 41

MONROE AVE

Over: DEEP CREEK

094422902, O'Brien, IA

Built 2007 Load: 22.0 t ADT: 11

LOCAL SEC RD

Over: NELSON CR

094412601, O'Brien, IA

Built 1935 Load: 22.4 t ADT: 30

LOCAL SEC RD

Over: LANGE CREEK

094422306, O'Brien, IA

Built 1954 Load: 22.4 t ADT: 62

LOCAL SEC RD

Over: WATERMAN CREEK

095392701, O'Brien, IA

Built 1951 Load: 22.4 t ADT: 26

FM

Over: FLOYD RIVER

097422902, O'Brien, IA

Built 1962 Load: 22.4 t ADT: 518

FM

Over: WATERMAN CREEK

094390314, O'Brien, IA

Built 1961 Load: 22.5 t ADT: 210

LOCAL SEC RD

Over: MUD CREEK

094420202, O'Brien, IA

Built 1934 Load: 22.7 t ADT: 103

LOCAL

Over: LAKE CREEK

095400901, O'Brien, IA

Built 1992 Load: 22.7 t ADT: 21

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.