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)

LOCAL RD

Poor

Over: WEST NODAWAY RIVER

072362803, Montgomery, IA

Built 1940 Load: 3.2 t ADT: 45

LOCAL

Poor

Over: DRAINAGE

073390301, Montgomery, IA

Built 1945 Load: 5.3 t ADT: 5

FM

Poor

Over: LITTLE TARKIO TRIB

072373004, Montgomery, IA

Built 1947 Load: 5.9 t ADT: 29

LOCAL

Poor

Over: DRAINAGE

072373401, Montgomery, IA

Built 1966 Load: 6.9 t ADT: 11

LOCAL

Poor

Over: OVER BNSF RR

072392006, Montgomery, IA

Built 1977 Load: 7.6 t ADT: 61

LOCAL

Poor

Over: DRAINAGE

071381604, Montgomery, IA

Built 1945 Load: 8.5 t ADT: 20

FM

Poor

Over: TARKIO CREEK

071370405, Montgomery, IA

Built 1949 Load: 9.7 t ADT: 159

LOCAL

Poor

Over: SMALL STREAM

073362601, Montgomery, IA

Built 1985 Load: 9.8 t ADT: 5

LOCAL

Poor

Over: TRIB TARKIO

072372804, Montgomery, IA

Built 1955 Load: 10.4 t ADT: 5

LOCAL

Poor

Over: NODAWAY RIVER

072362904, Montgomery, IA

Built 1968 Load: 11.1 t ADT: 20

LOCAL

Poor

Over: MINOR DRAINAGE

073391802, Montgomery, IA

Built 1966 Load: 11.3 t ADT: 5

FM

Poor

Over: LITTLE TARKIO TRIB

071370701, Montgomery, IA

Built 1964 Load: 12.6 t ADT: 89

LOCAL

Poor

Over: TARKIO CREEK

071372003, Montgomery, IA

Built 1949 Load: 13.5 t ADT: 60

COUNTY ROAD

Poor

Over: BR TARKIO CREEK

072370205, Montgomery, IA

Built 1956 Load: 13.9 t ADT: 11

LOCAL ROAD

Poor

Over: LOCAL STREAM

071383202, Montgomery, IA

Built 1985 Load: 14.1 t ADT: 20

LOCAL

Poor

Over: DRAINAGE

073373403, Montgomery, IA

Built 1969 Load: 14.4 t ADT: 5

FM

Poor

Over: TARKIO CREEK

071373201, Montgomery, IA

Built 1955 Load: 15.7 t ADT: 219

FM

Poor

Over: W NODAWAY

071362103, Montgomery, IA

Built 1939 Load: 15.9 t ADT: 300

LOCAL RD

Poor

Over: BRANCH TARKIO CREEK

073372604, Montgomery, IA

Built 1959 Load: 15.9 t ADT: 15

REDWOOD AVE

Poor

Over: BNSF RR

071361804, Montgomery, IA

Built 1913 Load: 16.2 t ADT: 15

LOCAL

Poor

Over: DRAINAGE

073371904, Montgomery, IA

Built 1987 Load: 16.7 t ADT: 5

LOCAL RD

Poor

Over: M NODAWAY RIVER

071361405, Montgomery, IA

Built 1952 Load: 18.3 t ADT: 100

LOCAL

Poor

Over: DRAINAGE

071373202, Montgomery, IA

Built 1952 Load: 18.7 t ADT: 15

LOCAL

Poor

Over: TARKIO CREEK TRIB

071381401, Montgomery, IA

Built 1956 Load: 18.8 t ADT: 15

FM

Poor

Over: WALNUT CREEK

073380901, Montgomery, IA

Built 1956 Load: 19.6 t ADT: 528

FM

Poor

Over: NISHNABOTNA TRIB

071383103, Montgomery, IA

Built 1957 Load: 21.0 t ADT: 173

LOCAL

Poor

Over: NISHNABOTNA TRIB

073381501, Montgomery, IA

Built 1970 Load: 21.2 t ADT: 5

FM

Poor

Over: LITTLE TARKIO

071383501, Montgomery, IA

Built 1958 Load: 24.3 t ADT: 219

FM

Poor

Over: CRABAPPLE CREEK

073393501, Montgomery, IA

Built 1958 Load: 24.3 t ADT: 199

FM

Poor

Over: WALNUT CREEK TRIB

071392104, Montgomery, IA

Built 1965 Load: 24.5 t ADT: 153

FM

Poor

Over: INDIAN CREEK

073390901, Montgomery, IA

Built 1957 Load: 28.8 t ADT: 270

LOCAL RD

Poor

Over: TARKIO CREEK

071372005, Montgomery, IA

Built 1966 Load: 30.6 t ADT: 11

FM

Poor

Over: TARKIO CREEK TRIB

071373301, Montgomery, IA

Built 1959 Load: 32.0 t ADT: 219

FM

Poor

Over: WALNUT CREEK

072392703, Montgomery, IA

Built 1967 Load: 32.7 t ADT: 750

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.