Sioux County, IA

429 public highway bridges

Sioux County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Sioux County, Iowa contains 429 public highway bridges. Roughly 61.5% are rated “Good,” 34% “Fair,” and 2.3% “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.

429
Total Bridges
61.5%
Good
34%
Fair
2.3%
Poor Condition

Condition Distribution

Good
61.5% (264)
Fair
34% (146)
Poor
2.3% (10)

All Bridges (429)

LOCAL

Good

Over: NO NAME CREEK

096433201, Sioux, IA

Built 2011 Load: 99.9 t ADT: 20

LARCH AVE

Good

Over: SMALL CREEK

South 2,910, Sioux, IA

Built 2015 Load: 99.9 t ADT: 20

LOCAL

Good

Over: SMALL STREAM

096433302, Sioux, IA

Built 1986 Load: 99.9 t ADT: 20

330TH ST

Good

Over: UNNAMED CREEK

096440401, Sioux, IA

Built 2022 Load: 99.9 t ADT: 11

FM

Good

Over: NO NAME CREEK

096441101, Sioux, IA

Built 1992 Load: 99.9 t ADT: 25

LOCAL

Good

Over: SMALL STREAM

096441302, Sioux, IA

Built 1991 Load: 99.9 t ADT: 50

LOCAL

Good

Over: SMALL STREAM

096441401, Sioux, IA

Built 1990 Load: 99.9 t ADT: 50

LOCAL

Good

Over: SMALL STREAM

096441601, Sioux, IA

Built 2002 Load: 99.9 t ADT: 30

LOCAL

Good

Over: SMALL STREAM

096441901, Sioux, IA

Built 1994 Load: 99.9 t ADT: 26

LOCAL

Good

Over: SMALL

096442101, Sioux, IA

Built 2011 Load: 99.9 t ADT: 50

JAY AVE

Good

Over: SMALL STREAM

096442202, Sioux, IA

Built 2014 Load: 99.9 t ADT: 20

LOCAL

Good

Over: SMALL STREAM

096451202, Sioux, IA

Built 2010 Load: 99.9 t ADT: 45

350TH AVE

Good

Over: SMALL CREEK

096451301, Sioux, IA

Built 2013 Load: 99.9 t ADT: 30

LOCAL

Good

Over: SMALL

096453002, Sioux, IA

Built 2010 Load: 99.9 t ADT: 110

LOCAL

Good

Over: SMALL

096453002, Sioux, IA

Built 1978 Load: 99.9 t ADT: 110

380TH ST

Good

Over: SMALL STREAM

096453101, Sioux, IA

Built 2000 Load: 99.9 t ADT: 359

LOCAL

Good

Over: SMALL

096460602, Sioux, IA

Built 2011 Load: 99.9 t ADT: 40

LOCAL

Good

Over: STREAM

096460802, Sioux, IA

Built 1996 Load: 99.9 t ADT: 50

FM

Good

Over: NO NAME CREEK

096470303, Sioux, IA

Built 1993 Load: 99.9 t ADT: 159

LOCAL

Good

Over: SMALL STREAM

096472501, Sioux, IA

Built 1992 Load: 99.9 t ADT: 40

LOCAL

Good

Over: SMALL STREAM

097431802, Sioux, IA

Built 1998 Load: 99.9 t ADT: 11

LARCH AVE

Good

Over: STREAM

097433302, Sioux, IA

Built 2012 Load: 99.9 t ADT: 71

LOCAL

Good

Over: SM STREAM

097442602, Sioux, IA

Built 2001 Load: 99.9 t ADT: 80

LOCAL

Good

Over: SMALL STREAM

097442902, Sioux, IA

Built 1995 Load: 99.9 t ADT: 71

INDIAN AVE

Good

Over: NO NAME CREEK

097443102, Sioux, IA

Built 2016 Load: 99.9 t ADT: 45

LOCAL

Good

Over: SMALL

W of 35 Sheridan, Sioux, IA

Built 2009 Load: 99.9 t ADT: 60

FM

Good

Over: DRY CREEK

097451501, Sioux, IA

Built 2010 Load: 99.9 t ADT: 34

LOCAL

Good

Over: SMALL

097452201, Sioux, IA

Built 2003 Load: 99.9 t ADT: 45

LOCAL

Good

Over: SM STREAM

097452402, Sioux, IA

Built 1997 Load: 99.9 t ADT: 60

FM

Good

Over: SM STREAM

097453504, Sioux, IA

Built 1933 Load: 99.9 t ADT: 1,416

LOCAL

Good

Over: SM STREAM

097453602, Sioux, IA

Built 2001 Load: 99.9 t ADT: 100

K 20 (270TH ST)

Good

Over: NO NAME CREEK

097470301, Sioux, IA

Built 2013 Load: 99.9 t ADT: 34

LOCAL

Good

Over: SMALL STREAM

097470302, Sioux, IA

Built 1986 Load: 99.9 t ADT: 40

LOCAL

Good

Over: SMALL STREAM

097470801, Sioux, IA

Built 1985 Load: 99.9 t ADT: 50

LOCAL

Good

Over: SM STREAM

097470902, Sioux, IA

Built 1997 Load: 99.9 t ADT: 20

LOCAL

Good

Over: SMALL STREAM

097471002, Sioux, IA

Built 1984 Load: 99.9 t ADT: 50

LOCAL

Good

Over: SMALL STREAM

097471501, Sioux, IA

Built 1984 Load: 99.9 t ADT: 40

LOCAL

Good

Over: SM STREAM

097471902, Sioux, IA

Built 2002 Load: 99.9 t ADT: 40

FM

Good

Over: NO NAME CREEK

097473001, Sioux, IA

Built 1988 Load: 99.9 t ADT: 159

LOCAL

Good

Over: STREAM

097482403, Sioux, IA

Built 1985 Load: 99.9 t ADT: 110

LOCAL

Good

Over: SMALL STREAM

094472702, Sioux, IA

Built 1998 Load: 99.9 t ADT: 40

LOCAL

Good

Over: SMALL STREAM

094430104, Sioux, IA

Built 2001 Load: 99.9 t ADT: 122

LOCAL

Good

Over: SMALL

094440602, Sioux, IA

Built 1984 Load: 99.9 t ADT: 30

LOCAL

Good

Over: SMALL

094452201, Sioux, IA

Built 1996 Load: 99.9 t ADT: 40

LOCAL

Good

Over: SMALL

094462201, Sioux, IA

Built 1986 Load: 99.9 t ADT: 15

LOCAL

Good

Over: SMALL

094462302, Sioux, IA

Built 1986 Load: 99.9 t ADT: 60

B 62

Good

Over: SMALL

094483401, Sioux, IA

Built 2003 Load: 99.9 t ADT: 34

LOCAL

Good

Over: SMALL

095453101, Sioux, IA

Built 1974 Load: 99.9 t ADT: 50

LOCAL

Good

Over: SMALL

095473301, Sioux, IA

Built 1977 Load: 99.9 t ADT: 45

LOCAL

Good

Over: SMALL

095432601, Sioux, IA

Built 1987 Load: 99.9 t ADT: 40

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

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.