Union County, IA

153 public highway bridges

Union County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Union County, Iowa contains 153 public highway bridges. Roughly 30.7% are rated “Good,” 34% “Fair,” and 35.3% “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.

153
Total Bridges
30.7%
Good
34%
Fair
35.3%
Poor Condition

Condition Distribution

Good
30.7% (47)
Fair
34% (52)
Poor
35.3% (54)

All Bridges (153)

LOCAL

Poor

Over: STREAM

071282106, Union, IA

Built 1992 ADT: 11

LOCAL

Poor

Over: INDIAN CREEK

071290502, Union, IA

Built 1900 ADT: 21

LOCAL

Poor

Over: MIDDLE PLATTE RIVER

071311603, Union, IA

Built 1970 ADT: 11

LOCAL

Poor

Over: STREAM

072291105, Union, IA

Built 1900 ADT: 21

LOCAL

Poor

Over: SMALL STREAM

072302704, Union, IA

Built 1900 ADT: 5

LOC DOGWOOD AVE

Poor

Over: SMALL STREAM

072311004, Union, IA

Built 1989 ADT: 35

LOCAL

Poor

Over: WEST PLATTE RIVER

072312102, Union, IA

Built 1900 ADT: 15

LOCAL

Poor

Over: EAST PLATTE RIVER

071300905, Union, IA

Built 1969 Load: 3.1 t ADT: 15

FM

Poor

Over: SAND CREEK

071283005, Union, IA

Built 1963 Load: 3.9 t ADT: 50

LOCAL

Poor

Over: SMALL STREAM

071292702, Union, IA

Built 1900 Load: 8.8 t ADT: 5

LOCAL

Poor

Over: SAND CREEK

071281904, Union, IA

Built 1967 Load: 9.3 t ADT: 41

LOCAL

Poor

Over: STREAM

072292504, Union, IA

Built 1988 Load: 9.4 t ADT: 46

LOCAL

Poor

Over: SMALL STREAM

073282101, Union, IA

Built 1900 Load: 9.5 t ADT: 30

LOCAL ROAD

Poor

Over: STREAM

071302701, Union, IA

Built 1900 Load: 10.0 t ADT: 26

LOCAL

Poor

Over: BRANCH EAST PLATTE

071301905, Union, IA

Built 1978 Load: 10.4 t ADT: 11

LOCAL

Poor

Over: STREAM

071302401, Union, IA

Built 1977 Load: 10.8 t ADT: 41

FM

Poor

Over: MIDDLE PLATTE RIVER

071311601, Union, IA

Built 1952 Load: 11.2 t ADT: 40

LOC B LEVEL RD

Poor

Over: STREAM

073311401, Union, IA

Built 1940 Load: 11.2 t ADT: 21

FM

Poor

Over: BR W PLATTE RIVER

073312502, Union, IA

Built 1957 Load: 11.2 t ADT: 788

LOCAL

Poor

Over: SMALL STREAM

072280806, Union, IA

Built 1940 Load: 12.0 t ADT: 26

LOCAL

Poor

Over: STREAM

071280205, Union, IA

Built 1991 Load: 12.8 t ADT: 35

LOCAL

Poor

Over: STREAM

073280202, Union, IA

Built 1900 Load: 14.1 t ADT: 51

LOCAL

Poor

Over: SMALL STREAM

071293502, Union, IA

Built 1973 Load: 14.7 t ADT: 15

LOCAL

Poor

Over: STREAM

073280713, Union, IA

Built 1900 Load: 15.0 t ADT: 15

LOCAL

Poor

Over: SMALL STREAM

071290606, Union, IA

Built 1990 Load: 16.0 t ADT: 11

LOCAL

Poor

Over: PLATTE RIVER

071312602, Union, IA

Built 1989 Load: 16.5 t ADT: 11

LOCAL

Poor

Over: SMALL STREAM

073283601, Union, IA

Built 1943 Load: 16.8 t ADT: 30

LOCAL

Poor

Over: TWELVE MILE CREEK

071282003, Union, IA

Built 1930 Load: 17.6 t ADT: 35

LOCAL RD

Poor

Over: STREAM

071293002, Union, IA

Built 1973 Load: 17.8 t ADT: 5

LOCAL

Poor

Over: STREAM

072291008, Union, IA

Built 1985 Load: 17.8 t ADT: 180

FM

Poor

Over: OUTLET GREEN VALLEY LK

073312601, Union, IA

Built 1951 Load: 18.0 t ADT: 159

170TH STREET

Poor

Over: GRAND RIVER

072280703, Union, IA

Built 1957 Load: 18.1 t ADT: 46

LOCAL

Poor

Over: STREAM

071303603, Union, IA

Built 2000 Load: 18.5 t ADT: 15

LOCAL

Poor

Over: SMALL STREAM

071290408, Union, IA

Built 1990 Load: 18.9 t ADT: 5

LOCAL

Poor

Over: WOLF CREEK

073282006, Union, IA

Built 1983 Load: 19.3 t ADT: 21

LOCAL SO.CHERRY

Poor

Over: SMALL STREAM

072301802, Union, IA

Built 1968 Load: 20.0 t ADT: 278

LOCAL

Poor

Over: SMALL STREAM

072310401, Union, IA

Built 1900 Load: 20.0 t ADT: 30

LOCAL

Poor

Over: SMALL STREAM

073290105, Union, IA

Built 1900 Load: 20.0 t ADT: 5

LOCAL

Poor

Over: SMALL STREAM

073311602, Union, IA

Built 1979 Load: 20.3 t ADT: 15

LOCAL

Poor

Over: FOUR MILE CREEK

072280103, Union, IA

Built 1967 Load: 20.8 t ADT: 5

LOCAL

Poor

Over: SMALL STREAM

072313501, Union, IA

Built 1964 Load: 21.4 t ADT: 11

LOCAL B LEVEL

Poor

Over: SMALL STREAM

073283103, Union, IA

Built 1973 Load: 21.5 t ADT: 5

LOCAL

Poor

Over: SMALL STREAM

073303401, Union, IA

Built 1992 Load: 21.9 t ADT: 21

LOCAL

Poor

Over: THREE MILE CREEK

073301004, Union, IA

Built 1978 Load: 23.7 t ADT: 35

LOCAL

Poor

Over: SMALL STREAM

073290801, Union, IA

Built 1980 Load: 24.0 t ADT: 11

LOCAL

Poor

Over: EAST PLATTE RIVER

071300301, Union, IA

Built 1981 Load: 26.9 t ADT: 30

LOCAL

Poor

Over: TWELVE MILE CREEK

073300701, Union, IA

Built 1979 Load: 29.5 t ADT: 62

FM

Poor

Over: EAST PLATTE RIVER

071301701, Union, IA

Built 1963 Load: 30.0 t ADT: 199

FM

Poor

Over: WOLF CREEK

073290104, Union, IA

Built 1976 Load: 32.5 t ADT: 60

FM

Poor

Over: SMALL STREAM

071303502, Union, IA

Built 1985 Load: 32.7 t ADT: 71

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.