Monona County, IA

125 public highway bridges

Monona County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Monona County, Iowa contains 125 public highway bridges. Roughly 36.8% are rated “Good,” 31.2% “Fair,” and 28% “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.

125

Total Bridges

36.8%

Good

31.2%

Fair

28%

Poor Condition

Condition Distribution

Good

36.8% (46)

Fair

31.2% (39)

Poor

28% (35)

All Bridges (125)

Sort:

IA 175

Over: I-29

At jct I-29, Monona, IA

Built 1959 ADT: 13,000

FM

Over: I-29

3.5 mi. S of IA 175, Monona, IA

Built 1967 ADT: 14,800

K42

Over: I-29

1.7 mi. N of IA 175, Monona, IA

Built 1959 ADT: 15,500

E-24 (160TH ST)

Over: I-29

At jct. of S.R. E24, Monona, IA

Built 1959 ADT: 15,300

FM

Over: I-29

4.3 mi. N of Jct. SR E24, Monona, IA

Built 1959 ADT: 15,900

LOCAL

Over: NORWAY CREEK

082420502, Monona, IA

Built 1983 Load: 5.2 t ADT: 15

LOCAL

Over: SOLDIER VALLEY D D

082433202, Monona, IA

Built 1900 Load: 14.3 t ADT: 5

FM

Over: ELK CREEK

082432405, Monona, IA

Built 1955 Load: 15.7 t ADT: 40

FM

Over: STREAM

085442212, Monona, IA

Built 1956 Load: 15.9 t ADT: 71

FM

Over: WILLOW CREEK

082422703, Monona, IA

Built 1960 Load: 17.1 t ADT: 11

FM

Over: HAITZ DD

084450101, Monona, IA

Built 1961 Load: 17.1 t ADT: 34

LOCAL

Over: TRIB MAPLE RIVER

085421002, Monona, IA

Built 1900 Load: 17.1 t ADT: 20

FM

Over: WEST FORK DD

084450203, Monona, IA

Built 1961 Load: 18.1 t ADT: 34

LOCAL

Over: DIVERSION DITCH

084451301, Monona, IA

Built 1961 Load: 18.1 t ADT: 45

FM

Over: MCCANDLESS CLEGHORN

084462301, Monona, IA

Built 1959 Load: 20.9 t ADT: 29

LOCAL RD

Over: GARD CREEK

084440810, Monona, IA

Built 1954 Load: 22.7 t ADT: 5

FM

Over: WILLOW CREEK

082423308, Monona, IA

Built 1955 Load: 24.5 t ADT: 15

PLUM AVE

Over: LOCAL STREAM

082432205, Monona, IA

Built 1950 Load: 24.5 t ADT: 40

FM

Over: BEAVER CR

083441506, Monona, IA

Built 1974 Load: 24.5 t ADT: 150

FM

Over: STREAM

084433005, Monona, IA

Built 1956 Load: 24.5 t ADT: 40

IA 175

Over: DRAINAGE DITCH

1.3 mi. E of SR L20, Monona, IA

Built 1973 Load: 24.9 t ADT: 1,200

LOCAL

Over: HEISLER CREEK

085421802, Monona, IA

Built 1976 Load: 25.6 t ADT: 11

IA 175

Over: DRAINAGE DITCH

3.0 mi. E of S.R. L12, Monona, IA

Built 1964 Load: 26.2 t ADT: 2,120

LOCAL

Over: SKUNK CREEK

084420106, Monona, IA

Built 1990 Load: 26.8 t ADT: 11

LOCAL

Over: HAITZ DD

085451201, Monona, IA

Built 1962 Load: 27.1 t ADT: 20

LOCAL

Over: MCCABDLESS CLEGHORN DD

085462302, Monona, IA

Built 2004 Load: 27.2 t ADT: 34

IA 175

Over: DRAINAGE DITCH

4.5 mi. E of E jct SR L20, Monona, IA

Built 1973 Load: 27.5 t ADT: 1,200

LOCAL

Over: MCCANDLESS CLEGHORN DD

085462403, Monona, IA

Built 1971 Load: 29.8 t ADT: 50

IA 175

Over: MUCKY CREEK

0.8 mi. W of W Jct IA 141, Monona, IA

Built 1973 Load: 30.1 t ADT: 1,200

FM

Over: MONONA HARRISON DD

082442003, Monona, IA

Built 1974 Load: 30.4 t ADT: 100

IA 175

Over: DRAINAGE DITCH

2.9 mi. E of E jct SR L20, Monona, IA

Built 1973 Load: 30.8 t ADT: 1,200

FM

Over: NEW FARMER MAIN D.D.

084450301, Monona, IA

Built 2002 Load: 32.7 t ADT: 50

LOCAL

Over: STREAM

084451104, Monona, IA

Built 2002 Load: 32.7 t ADT: 15

IA 37

Over: BEAVER CREEK

4.4 mi. E of IA 175, Monona, IA

Built 1942 Load: 33.6 t ADT: 780

LOCAL

Over: MCCANDLESS CLEGHORN DD

085462503, Monona, IA

Built 1970 Load: 34.2 t ADT: 40

FM

Over: CROW CREEK

082423004, Monona, IA

Built 1955 Load: 35.5 t ADT: 20

IA 37

Over: NORWAY CREEK

2.6 mi. E of IA 183, Monona, IA

Built 1959 Load: 36.7 t ADT: 620

IA 183

Over: SOLDIER RIVER

1.1 mi. S of Jct. IA 141, Monona, IA

Built 1998 Load: 38.5 t ADT: 580

FM

Over: JORDAN CREEK

082430905, Monona, IA

Built 2000 Load: 42.5 t ADT: 199

LOCAL

Over: SKINNER CREEK

083422201, Monona, IA

Built 1956 Load: 68.2 t ADT: 79

FM

Over: STREAM

084433004, Monona, IA

Built 1952 Load: 73.5 t ADT: 29

FM

Over: STREAM

084433005, Monona, IA

Built 1956 Load: 79.0 t ADT: 40

LOCAL

Over: DUTCH CREEK

085431103, Monona, IA

Built 1976 Load: 99.9 t ADT: 11

LOCAL RD

Over: SMALL STREAM

085431403, Monona, IA

Built 1979 Load: 99.9 t ADT: 26

IA 175

Over: DRAINAGE DITCH

3.8 mi. W of SR L37, Monona, IA

Built 1900 Load: 18.1 t ADT: 1,430

IA 175

Over: STREAM

2.9 mi E of W Jct IA 141, Monona, IA

Built 1952 Load: 18.1 t ADT: 1,430

IA 175

Over: DRAINAGE DITCH

0.6 mi E of SR L20, Monona, IA

Built 1973 Load: 24.6 t ADT: 970

IA 175

Over: DRAINAGE DITCH

5.2 mi E of E jct SR L20, Monona, IA

Built 1973 Load: 25.6 t ADT: 1,200

IA 183

Over: OVERFLOW CHANNEL

4.8 mi. S of SR E54, Monona, IA

Built 2008 Load: 27.1 t ADT: 580

IA 175

Over: DRAINAGE DITCH

0.7 mi. W of jct. SR E34, Monona, IA

Built 1973 Load: 30.6 t ADT: 1,140

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

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