Montgomery County, IA

184 public highway bridges

Montgomery County Bridge Snapshot

Montgomery County, Iowa contains 184 public highway bridges in the FHWA National Bridge Inventory. Roughly 20.1% are rated “Good,” 52.7% “Fair,” 26.6% “Poor,” and 26.6% are classified as structurally deficient — the federal designation for spans whose deck, superstructure, or substructure has been rated 4 or below on the 0–9 NBI scale. Structurally deficient does not mean unsafe to cross; it means the bridge is on the priority list for repair or replacement.

Inspections in IA are conducted by certified engineers from the state Department of Transportation on a 24-month cycle, and results are reported back to the FHWA each spring. The list below shows every NBI-tracked bridge in the county, sorted by inventory load rating. Use the “Sort by” controls to surface the lowest-rated spans first, and click any row for full inspection history, traffic counts, and condition trends.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

184
Total Bridges
20.1%
Good
26.6%
Poor
26.6%
Structurally Deficient

Condition Distribution

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

All Bridges (184)

FM

Poor

Over: INDIAN CREEK

073390901, Montgomery, IA

Built 1957 Load: 28.8 t ADT: 270

FM

Poor

Over: WALNUT CREEK

072392703, Montgomery, IA

Built 1967 Load: 32.7 t ADT: 750

FM

Structurally Deficient

Over: LITTLE TARKIO TRIB

071370702, Montgomery, IA

Built 1947 ADT: 60

FM

Structurally Deficient

Over: NISHNABOTNA

071381901, Montgomery, IA

Built 1942 ADT: 60

LOCAL

Structurally Deficient

Over: WALNUT CREEK

071390401, Montgomery, IA

Built 1966 ADT: 11

LOCAL ROAD

Structurally Deficient

Over: WALNUT CREEK

071391701, Montgomery, IA

Built 1951 ADT: 20

LOCAL

Structurally Deficient

Over: LOCAL CREEK

071392902, Montgomery, IA

Built 1940 ADT: 11

LOCAL

Structurally Deficient

Over: LITTLE TARKIO CREEK

072371401, Montgomery, IA

Built 1979 ADT: 29

LOCAL

Structurally Deficient

Over: DRAINAGE

072372602, Montgomery, IA

Built 1942 ADT: 20

FM

Structurally Deficient

Over: NISHNABOTNA TRIB

072380303, Montgomery, IA

Built 1949 ADT: 29

LOCAL ROAD

Structurally Deficient

Over: LOCAL CREEK

072381702, Montgomery, IA

Built 1963 ADT: 112

LOCAL RD

Structurally Deficient

Over: LITTLE TARKIO CREEK

072383605, Montgomery, IA

Built 1950 ADT: 11

LOCAL ROAD

Structurally Deficient

Over: MINOR DRAINAGE

072393301, Montgomery, IA

Built 1930 ADT: 61

LOCAL ROAD

Structurally Deficient

Over: MINOR DRAINAGE

073360104, Montgomery, IA

Built 1971 ADT: 20

LOCAL RD

Structurally Deficient

Over: W NODAWAY RIVER

073361603, Montgomery, IA

Built 1970 ADT: 26

LOCAL

Structurally Deficient

Over: BRANCH TARKIO CREEK

073372802, Montgomery, IA

Built 1961 ADT: 26

LOCAL

Structurally Deficient

Over: BR WALNUT CREEK

073380502, Montgomery, IA

Built 1988 ADT: 11

LOCAL RD

Structurally Deficient

Over: WEST NODAWAY RIVER

072362803, Montgomery, IA

Built 1940 Load: 3.2 t ADT: 45

LOCAL

Structurally Deficient

Over: DRAINAGE

073390301, Montgomery, IA

Built 1945 Load: 5.3 t ADT: 5

FM

Structurally Deficient

Over: LITTLE TARKIO TRIB

072373004, Montgomery, IA

Built 1947 Load: 5.9 t ADT: 29

LOCAL

Structurally Deficient

Over: DRAINAGE

072373401, Montgomery, IA

Built 1966 Load: 6.9 t ADT: 11

LOCAL

Structurally Deficient

Over: OVER BNSF RR

072392006, Montgomery, IA

Built 1977 Load: 7.6 t ADT: 61

LOCAL

Structurally Deficient

Over: DRAINAGE

071381604, Montgomery, IA

Built 1945 Load: 8.5 t ADT: 20

LOCAL

Structurally Deficient

Over: TRIB TARKIO

072372804, Montgomery, IA

Built 1955 Load: 10.4 t ADT: 5

FM

Structurally Deficient

Over: LITTLE TARKIO TRIB

071370701, Montgomery, IA

Built 1964 Load: 12.6 t ADT: 89

COUNTY ROAD

Structurally Deficient

Over: BR TARKIO CREEK

072370205, Montgomery, IA

Built 1956 Load: 13.9 t ADT: 11

LOCAL

Structurally Deficient

Over: DRAINAGE

073373403, Montgomery, IA

Built 1969 Load: 14.4 t ADT: 5

FM

Structurally Deficient

Over: TARKIO CREEK

071373201, Montgomery, IA

Built 1955 Load: 15.7 t ADT: 219

FM

Structurally Deficient

Over: W NODAWAY

071362103, Montgomery, IA

Built 1939 Load: 15.9 t ADT: 300

REDWOOD AVE

Structurally Deficient

Over: BNSF RR

071361804, Montgomery, IA

Built 1913 Load: 16.2 t ADT: 15

LOCAL

Structurally Deficient

Over: DRAINAGE

071373202, Montgomery, IA

Built 1952 Load: 18.7 t ADT: 15

LOCAL

Structurally Deficient

Over: TARKIO CREEK TRIB

071381401, Montgomery, IA

Built 1956 Load: 18.8 t ADT: 15

LOCAL RD

Structurally Deficient

Over: TARKIO CREEK

071372005, Montgomery, IA

Built 1966 Load: 30.6 t ADT: 11

FM

Structurally Deficient

Over: TARKIO CREEK TRIB

071373301, Montgomery, IA

Built 1959 Load: 32.0 t ADT: 219

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

Related

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Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial