Lyon County, IA

241 public highway bridges

Lyon County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Lyon County, Iowa contains 241 public highway bridges. Roughly 41.1% are rated “Good,” 37.8% “Fair,” and 21.2% “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.

241
Total Bridges
41.1%
Good
37.8%
Fair
21.2%
Poor Condition

Condition Distribution

Good
41.1% (99)
Fair
37.8% (91)
Poor
21.2% (51)

All Bridges (241)

250TH ST

Good

Over: ALLEN CREEK

098433001, Lyon, IA

Built 2017 Load: 32.4 t ADT: 30

MARSH AVE

Good

Over: LITTLE OTTER CREEK

098433602, Lyon, IA

Built 2019 Load: 32.4 t ADT: 71

JEFFERSON AVE

Good

Over: SMALL STREAM

098442302, Lyon, IA

Built 2014 Load: 32.4 t ADT: 46

A52 260TH ST

Good

Over: OTTER CREEK

098443401, Lyon, IA

Built 2020 Load: 32.4 t ADT: 649

HARRISON AVE

Good

Over: BURR OAK CREEK

098453402, Lyon, IA

Built 2019 Load: 32.4 t ADT: 50

IBEX AVE

Good

Over: BURR OAK CREEK

098453602, Lyon, IA

Built 2019 Load: 32.4 t ADT: 50

FIG AVE

Good

Over: LIZARD CREEK

0984622702, Lyon, IA

Built 2014 Load: 32.4 t ADT: 46

K42 GARFIELD AVE

Good

Over: LITTLE ROCK RIVER

098463602, Lyon, IA

Built 2011 Load: 32.4 t ADT: 1,087

210TH ST

Good

Over: PLUM CREEK

098470601, Lyon, IA

Built 2013 Load: 32.4 t ADT: 50

DOGWOOD AVE

Good

Over: OVERFLOW

098473602, Lyon, IA

Built 2019 Load: 32.4 t ADT: 30

220TH ST

Good

Over: PLUM CREEK

098480504, Lyon, IA

Built 2021 Load: 32.4 t ADT: 46

230TH ST

Good

Over: MCLAREN CREEK

098481301, Lyon, IA

Built 2014 Load: 32.4 t ADT: 72

230TH ST

Good

Over: MCLAREN CREEK

098481401, Lyon, IA

Built 2014 Load: 32.4 t ADT: 72

ABLE BLVD

Good

Over: MCLAREN CREEK

0984815, Lyon, IA

Built 2016 Load: 32.4 t ADT: 62

255TH ST

Good

Over: SMALL STREAM

098483003, Lyon, IA

Built 2022 Load: 32.4 t ADT: 30

LOG AVE

Good

Over: HESS CREEK

099432602, Lyon, IA

Built 2015 Load: 32.4 t ADT: 41

200TH ST

Good

Over: TAFT CREEK

099433301, Lyon, IA

Built 2014 Load: 32.4 t ADT: 45

200TH ST

Good

Over: HESS CREEK

099433401, Lyon, IA

Built 2015 Load: 32.4 t ADT: 26

LOCAL ROAD

Good

Over: EMERY CREEK

099441602, Lyon, IA

Built 1994 Load: 32.4 t ADT: 30

LOCAL ROAD

Good

Over: JOHNSON CREEK

099442701, Lyon, IA

Built 1995 Load: 32.4 t ADT: 50

200TH ST

Good

Over: JOHNSON CREEK

099443301, Lyon, IA

Built 2014 Load: 32.4 t ADT: 30

LOCAL ROAD

Good

Over: KLONDIKE CREEK

099470601, Lyon, IA

Built 1991 Load: 32.4 t ADT: 50

DOGWOOD AVE

Good

Over: SMALL STREAM

099471302, Lyon, IA

Built 2015 Load: 32.4 t ADT: 26

160TH ST

Good

Over: BURNS CREEK

099481201, Lyon, IA

Built 2017 Load: 32.4 t ADT: 41

BUCHANAN AVE

Good

Over: KLONDIKE CREEK

099481202, Lyon, IA

Built 2019 Load: 32.4 t ADT: 26

BUCHANAN AVE

Good

Over: KLONDIKE CREEK

099481202, Lyon, IA

Built 2019 Load: 32.4 t ADT: 26

BUCHANAN AVE

Good

Over: KLONDIKE CREEK

099481202, Lyon, IA

Built 2018 Load: 32.4 t ADT: 26

LARCH AVE

Good

Over: TOM CREEK

100432102, Lyon, IA

Built 2017 Load: 32.4 t ADT: 21

JACKSON AVE

Good

Over: TOM CREEK

100442102, Lyon, IA

Built 2017 Load: 32.4 t ADT: 50

K60 INDIAN AVE

Good

Over: TOM CREEK

100443002, Lyon, IA

Built 2022 Load: 32.4 t ADT: 279

LOCAL ROAD

Good

Over: KANARANZI CREEK

100451103, Lyon, IA

Built 2010 Load: 32.4 t ADT: 62

140TH ST

Good

Over: TOM CREEK

100453601, Lyon, IA

Built 2017 Load: 32.4 t ADT: 33

110TH ST

Good

Over: TOOLE CREEK

100461801, Lyon, IA

Built 2017 Load: 32.4 t ADT: 72

CHERRY AVE

Good

Over: SMALL STREAM

100470702, Lyon, IA

Built 2015 Load: 32.4 t ADT: 30

LOCAL ROAD

Good

Over: SMALL STREAM

100472502, Lyon, IA

Built 1994 Load: 32.4 t ADT: 50

LOCAL ROAD

Good

Over: CREEK

099451302, Lyon, IA

Built 1990 Load: 32.4 t ADT: 26

LOCAL ROAD

Good

Over: CREEK

100433102, Lyon, IA

Built 1989 Load: 32.4 t ADT: 35

COOLIDGE AVE

Good

Over: SMALL

098470302, Lyon, IA

Built 1993 Load: 32.4 t ADT: 100

LOCAL

Good

Over: SMALL

100433102, Lyon, IA

Built 1989 Load: 32.4 t ADT: 35

140TH ST

Good

Over: CREEK

100443601, Lyon, IA

Built 1989 Load: 32.4 t ADT: 30

JAY AVE

Good

Over: STREAM

098442202, Lyon, IA

Built 2013 Load: 32.4 t ADT: 15

DOGWOOD AVE

Good

Over: SMALL STREAM

100472402, Lyon, IA

Built 2015 Load: 32.4 t ADT: 50

FM

Good

Over: WEST RAT CREEK

098430101, Lyon, IA

Built 2007 Load: 32.7 t ADT: 578

LOCAL

Good

Over: OVER FLOW

0984623, Lyon, IA

Built 2004 Load: 32.7 t ADT: 62

LOCAL RD

Good

Over: ARGO SLOUGH

099431201, Lyon, IA

Built 2003 Load: 32.7 t ADT: 35

LOCAL ROAD

Good

Over: TAFT CREEK

099432701, Lyon, IA

Built 1992 Load: 32.7 t ADT: 26

LOCAL ROAD

Good

Over: ZOAR CREEK

099433402, Lyon, IA

Built 1992 Load: 32.7 t ADT: 46

FM

Good

Over: EMERY CREEK

099442001, Lyon, IA

Built 1978 Load: 32.7 t ADT: 40

LOCAL ROAD

Good

Over: TURNER CREEK

100441101, Lyon, IA

Built 2006 Load: 32.7 t ADT: 62

LOCAL ROAD

Good

Over: SMALL STREAM

100450902, Lyon, IA

Built 1989 Load: 32.7 t ADT: 26

Read our methodology - how this data is sourced, computed, and verified.

Related

Browse all → | Rankings →
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.