Montgomery County, IA

184 public highway bridges

Montgomery County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Montgomery County, Iowa contains 184 public highway bridges. Roughly 20.1% are rated “Good,” 52.7% “Fair,” and 26.6% “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.

184
Total Bridges
20.1%
Good
52.7%
Fair
26.6%
Poor Condition

Condition Distribution

Good
20.1% (37)
Fair
52.7% (97)
Poor
26.6% (49)

All Bridges (184)

FM

Good

Over: TARKIO CREEK

073371101, Montgomery, IA

Built 2006 Load: 25.5 t ADT: 259

FM

Good

Over: TRIBUTARY TO NODAWAY

071362102, Montgomery, IA

Built 2010 Load: 27.8 t ADT: 79

US 71

Good

Over: SIN CREEK

4.5 mi. S of Jct. SR H-14, Montgomery, IA

Built 1970 Load: 31.3 t ADT: 1,390

H54 265TH ST

Good

Over: WEST NODAWAY

071362803, Montgomery, IA

Built 2017 Load: 32.4 t ADT: 300

230TH ST

Good

Over: WALNUT CREEK

071390801, Montgomery, IA

Built 2019 Load: 32.4 t ADT: 15

M37 BOXELDER AVE

Good

Over: BNSF RR

072392804, Montgomery, IA

Built 2014 Load: 32.4 t ADT: 249

210TH ST

Good

Over: WALNUT CREEK

072393305, Montgomery, IA

Built 2019 Load: 32.4 t ADT: 30

H20 (150TH ST)

Good

Over: NISHNABOTNA RIVER

073383403, Montgomery, IA

Built 2013 Load: 32.4 t ADT: 159

SR N18 (T AVE)

Good

Over: TRIB W NODAWAY RIVER

071360406, Montgomery, IA

Built 2011 Load: 32.7 t ADT: 40

FM

Good

Over: NISHNABOTNA RIVER

072382913, Montgomery, IA

Built 2002 Load: 32.7 t ADT: 761

LOCAL

Good

Over: WALNUT CREEK

071393003, Montgomery, IA

Built 1978 Load: 32.8 t ADT: 20

FM-210TH STREET

Good

Over: MIDDLE NODAWAY RIVER

072363603, Montgomery, IA

Built 2004 Load: 33.3 t ADT: 100

LOCAL

Good

Over: CRAPABLE TREE

073393502, Montgomery, IA

Built 2000 Load: 33.7 t ADT: 5

LOCAL ROAD

Good

Over: BRANCH OF TARKIO CREEK

072373410, Montgomery, IA

Built 2003 Load: 35.6 t ADT: 1,404

US 71

Good

Over: LONG'S BRANCH

1.8 MI. N OF N JCT SR H34, Montgomery, IA

Built 1970 Load: 36.4 t ADT: 1,390

N18 T AVE

Good

Over: W NODAWAY RIVER

072363302, Montgomery, IA

Built 2015 Load: 37.9 t ADT: 29

FM

Good

Over: WALNUT CREEK

072391302, Montgomery, IA

Built 1988 Load: 38.2 t ADT: 61

LOCAL

Good

Over: TRIB SEVEN MILE

073362002, Montgomery, IA

Built 1999 Load: 38.2 t ADT: 20

FM

Good

Over: INDIAN CREEK

073393201, Montgomery, IA

Built 2010 Load: 38.2 t ADT: 20

FM

Good

Over: W NODAWAY RIVER

072360901, Montgomery, IA

Built 1999 Load: 38.5 t ADT: 60

FM

Good

Over: WEST NODAWAY

073363303, Montgomery, IA

Built 2003 Load: 39.9 t ADT: 71

FM

Good

Over: NISHNABOTNA RIVER

072382903, Montgomery, IA

Built 1997 Load: 40.1 t ADT: 2,231

FM

Good

Over: SEVEN MILE CREEK

073360801, Montgomery, IA

Built 2007 Load: 41.0 t ADT: 259

LOCAL

Good

Over: NISHNABOTNA TRIB

072380201, Montgomery, IA

Built 2003 Load: 41.4 t ADT: 40

250TH ST

Good

Over: WALNUT CREEK

071391903, Montgomery, IA

Built 2011 Load: 42.4 t ADT: 30

H20 140TH ST

Good

Over: SEVEN MILE CREEK

073362901, Montgomery, IA

Built 2022 Load: 42.4 t ADT: 29

100TH ST

Good

Over: DRAINAGE

073360505, Montgomery, IA

Built 2015 Load: 49.9 t ADT: 15

LOCAL ROAD

Good

Over: TARKIO CREEK

073372201, Montgomery, IA

Built 1996 Load: 50.3 t ADT: 34

IA 48

Good

Over: MORMAN BRANCH CREEK

3.8 MI. S OF U.S. 34, Montgomery, IA

Built 1987 Load: 52.2 t ADT: 2,000

M37 BOXELDER AVE

Good

Over: CRABAPPLE CREEK

072391604, Montgomery, IA

Built 2021 Load: 52.5 t ADT: 100

LOCAL

Good

Over: INDIAN CREEK

072390801, Montgomery, IA

Built 1994 Load: 52.7 t ADT: 26

FM

Good

Over: TARKIO CREEK

073372202, Montgomery, IA

Built 1994 Load: 52.9 t ADT: 270

IA 48

Good

Over: COE CREEK

0.8 mi. W of Jct. SR H-14, Montgomery, IA

Built 1974 Load: 90.5 t ADT: 1,210

LOCAL

Good

Over: DRAINAGE

071381302, Montgomery, IA

Built 1990 Load: 99.9 t ADT: 15

LOCAL

Good

Over: NISHNABOTNA TRIB

073380204, Montgomery, IA

Built 1992 Load: 99.9 t ADT: 50

FM

Poor

Over: LITTLE TARKIO TRIB

071370702, Montgomery, IA

Built 1947 ADT: 60

FM

Poor

Over: NISHNABOTNA

071381901, Montgomery, IA

Built 1942 ADT: 60

LOCAL

Poor

Over: WALNUT CREEK

071390401, Montgomery, IA

Built 1966 ADT: 11

LOCAL ROAD

Poor

Over: WALNUT CREEK

071391701, Montgomery, IA

Built 1951 ADT: 20

LOCAL

Poor

Over: LOCAL CREEK

071392902, Montgomery, IA

Built 1940 ADT: 11

LOCAL

Poor

Over: LITTLE TARKIO CREEK

072371401, Montgomery, IA

Built 1979 ADT: 29

LOCAL

Poor

Over: DRAINAGE

072372602, Montgomery, IA

Built 1942 ADT: 20

FM

Poor

Over: NISHNABOTNA TRIB

072380303, Montgomery, IA

Built 1949 ADT: 29

LOCAL ROAD

Poor

Over: LOCAL CREEK

072381702, Montgomery, IA

Built 1963 ADT: 112

LOCAL RD

Poor

Over: LITTLE TARKIO CREEK

072383605, Montgomery, IA

Built 1950 ADT: 11

LOCAL ROAD

Poor

Over: MINOR DRAINAGE

072393301, Montgomery, IA

Built 1930 ADT: 61

LOCAL ROAD

Poor

Over: MINOR DRAINAGE

073360104, Montgomery, IA

Built 1971 ADT: 20

LOCAL RD

Poor

Over: W NODAWAY RIVER

073361603, Montgomery, IA

Built 1970 ADT: 26

LOCAL

Poor

Over: BRANCH TARKIO CREEK

073372802, Montgomery, IA

Built 1961 ADT: 26

LOCAL

Poor

Over: BR WALNUT CREEK

073380502, Montgomery, IA

Built 1988 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.