Union County, IA

153 public highway bridges

Union County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Union County, Iowa contains 153 public highway bridges. Roughly 30.7% are rated “Good,” 34% “Fair,” and 35.3% “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.

153
Total Bridges
30.7%
Good
34%
Fair
35.3%
Poor Condition

Condition Distribution

Good
30.7% (47)
Fair
34% (52)
Poor
35.3% (54)

All Bridges (153)

LOCAL

Fair

Over: OVER BNSF RR

072310902, Union, IA

Built 1997 Load: 42.3 t ADT: 91

FM POLE RD

Fair

Over: CREEK

072302002, Union, IA

Built 1954 Load: 47.0 t ADT: 568

LOCAL

Good

Over: TWELVE MILE CREEK

071283603, Union, IA

Built 1992 Load: 18.2 t ADT: 15

LOCAL

Good

Over: STREAM

072291104, Union, IA

Built 2004 Load: 23.1 t ADT: 5

230TH ST

Good

Over: SEVEN MILE CREEK

071281203, Union, IA

Built 2012 Load: 25.6 t ADT: 20

FM

Good

Over: FOUR MILE CREEK

072281104, Union, IA

Built 2009 Load: 25.6 t ADT: 26

LOCAL

Good

Over: SMALL STREAM

071290202, Union, IA

Built 2004 Load: 28.3 t ADT: 46

FM

Good

Over: SMALL STREAM

072312603, Union, IA

Built 2003 Load: 28.3 t ADT: 89

US 169

Good

Over: BNSF RR

0.2 MI. S OF S JCT. US 34, Union, IA

Built 1980 Load: 30.0 t ADT: 3,870

H29 168TH ST

Good

Over: FOUR MILE CREEK

072280150, Union, IA

Built 2015 Load: 32.4 t ADT: 40

170TH ST

Good

Over: TWO MILE CREEK

072291103, Union, IA

Built 2021 Load: 32.4 t ADT: 46

FM

Good

Over: TWELVE MILE CREEK

071282705, Union, IA

Built 1977 Load: 32.7 t ADT: 60

LOCAL

Good

Over: STREAM

072281806, Union, IA

Built 1995 Load: 32.7 t ADT: 72

FM POLE RD

Good

Over: MIDDLE PLATTE RIVER

072300806, Union, IA

Built 1993 Load: 32.7 t ADT: 568

LOC W ADAMS ST

Good

Over: STREAM

072311005, Union, IA

Built 2001 Load: 32.7 t ADT: 369

H 17 REA RD

Good

Over: STREAM

073291205, Union, IA

Built 2014 Load: 32.7 t ADT: 170

PHEASANT AVENUE

Good

Over: STREAM

073292202, Union, IA

Built 2022 Load: 32.7 t ADT: 21

H 17 (REA RD)

Good

Over: WEST WOLF CREEK

073281701, Union, IA

Built 2014 Load: 32.7 t ADT: 219

8TH ST RELOC!

Good

Over: DRAINAGE

000000000, Union, IA

Built 1992 Load: 32.7 t ADT: 387

210TH ST

Good

Over: SMALL STREAM

072303101, Union, IA

Built 2012 Load: 32.9 t ADT: 26

LOCAL

Good

Over: SMALL STREAM

071303401, Union, IA

Built 1997 Load: 34.9 t ADT: 15

LOCAL RD

Good

Over: STREAM

071280702, Union, IA

Built 2009 Load: 35.2 t ADT: 62

CHERRY ST

Good

Over: E BR MIDDLE PLATTE RIVER

072303102, Union, IA

Built 2023 Load: 35.2 t ADT: 62

LOCAL RD

Good

Over: STREAM

073311804, Union, IA

Built 2000 Load: 37.2 t ADT: 11

LOCAL

Good

Over: SMALL STREAM

072290306, Union, IA

Built 2010 Load: 37.6 t ADT: 51

FM

Good

Over: GRAND RIVER

073283106, Union, IA

Built 1991 Load: 37.6 t ADT: 29

LOCAL

Good

Over: STREAM

071283605, Union, IA

Built 2005 Load: 38.5 t ADT: 30

FM

Good

Over: 12 MILE CREEK

073302702, Union, IA

Built 1990 Load: 38.7 t ADT: 45

LOCAL

Good

Over: GRAND RIVER

072281803, Union, IA

Built 1995 Load: 38.8 t ADT: 26

P 33 (POLE RD)

Good

Over: EAST PLATTE RIVER

071301702, Union, IA

Built 2012 Load: 38.9 t ADT: 120

190TH ST

Good

Over: SMALL STREAM

072312301, Union, IA

Built 2013 Load: 38.9 t ADT: 339

FM

Good

Over: GRAND RIVER

071280206, Union, IA

Built 2001 Load: 39.9 t ADT: 210

REDWOOD AVE

Good

Over: STREAM

071293602, Union, IA

Built 2011 Load: 39.9 t ADT: 20

H45 240TH ST

Good

Over: SMALL STREAM

071311803, Union, IA

Built 2022 Load: 40.2 t ADT: 40

FM

Good

Over: TWELVE MILE CREEK

073302101, Union, IA

Built 2010 Load: 40.2 t ADT: 477

FM

Good

Over: EAST PLATTE RIVER

071312402, Union, IA

Built 2009 Load: 40.5 t ADT: 927

EAGLE AVE

Good

Over: SMALL STREAM

071311102, Union, IA

Built 2015 Load: 41.6 t ADT: 15

P64 PRIMROSE DR

Good

Over: TWELVE MILE CREEK

071283403, Union, IA

Built 2017 Load: 41.8 t ADT: 71

LOCAL

Good

Over: PLATTE RIVER

071313103, Union, IA

Built 1994 Load: 42.3 t ADT: 21

FM

Good

Over: GRAND RIVER

073291109, Union, IA

Built 2007 Load: 42.5 t ADT: 270

LOCAL

Good

Over: STREAM

072301206, Union, IA

Built 2007 Load: 44.4 t ADT: 11

FM

Good

Over: CREEK

073293401, Union, IA

Built 2004 Load: 44.4 t ADT: 50

LOCAL

Good

Over: MIDDLE PLATTE RIVER

071312803, Union, IA

Built 1994 Load: 48.0 t ADT: 11

LOCAL

Good

Over: STREAM

071302501, Union, IA

Built 2004 Load: 49.6 t ADT: 11

FM

Good

Over: WEST PLATTE RIVER

072312902, Union, IA

Built 1998 Load: 49.6 t ADT: 29

FM

Good

Over: THREE MILE CREEK

073301306, Union, IA

Built 2010 Load: 50.9 t ADT: 350

210TH STREET

Good

Over: FOURMILE CREEK

072283505, Union, IA

Built 1995 Load: 52.6 t ADT: 50

FM

Good

Over: MIDDLE PLATTE RIVER

072311302, Union, IA

Built 2005 Load: 52.9 t ADT: 1,055

197TH ST

Good

Over: STREAM

072282307, Union, IA

Built 2017 Load: 74.8 t ADT: 15

LOCAL

Poor

Over: STREAM

071281905, Union, IA

Built 1900 ADT: 11

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.