Decatur County, IA

178 public highway bridges

Decatur County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Decatur County, Iowa contains 178 public highway bridges. Roughly 19.7% are rated “Good,” 32.6% “Fair,” and 44.4% “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.

178
Total Bridges
19.7%
Good
32.6%
Fair
44.4%
Poor Condition

Condition Distribution

Good
19.7% (35)
Fair
32.6% (58)
Poor
44.4% (79)

All Bridges (178)

FM

Poor

Over: LITTLE RIVER

067251003, Decatur, IA

Built 1957 Load: 14.9 t ADT: 110

LOCAL

Poor

Over: DRAINAGE

068262701, Decatur, IA

Built 1976 Load: 15.1 t ADT: 11

LOCAL

Poor

Over: SHANE CREEK

068272804, Decatur, IA

Built 1967 Load: 15.1 t ADT: 5

FM

Poor

Over: GRAND RIVER

069270106, Decatur, IA

Built 1962 Load: 15.1 t ADT: 45

FM

Poor

Over: WELDON RIVER

069240903, Decatur, IA

Built 1957 Load: 15.9 t ADT: 15

FM

Poor

Over: LITTLE RIVER

067251309, Decatur, IA

Built 1959 Load: 16.3 t ADT: 170

LOCAL

Poor

Over: WELDON RIVER

069241602, Decatur, IA

Built 1966 Load: 16.4 t ADT: 11

FM

Poor

Over: TRIB OF LITTLE RIVER

069253104, Decatur, IA

Built 1969 Load: 16.4 t ADT: 60

LOCAL

Poor

Over: BRUSH CREEK

069272603, Decatur, IA

Built 1920 Load: 16.4 t ADT: 21

FM

Poor

Over: BRUSH CREEK

069252401, Decatur, IA

Built 1980 Load: 16.5 t ADT: 60

LOCAL

Poor

Over: W. FORK BIG CREEK

068273101, Decatur, IA

Built 1970 Load: 16.7 t ADT: 15

FM

Poor

Over: GRAND RIVER

067261305, Decatur, IA

Built 1959 Load: 17.1 t ADT: 329

FM

Poor

Over: POT HOLE CREEK

068271302, Decatur, IA

Built 1957 Load: 17.1 t ADT: 60

LOCAL

Poor

Over: WELDON RIVER

069243303, Decatur, IA

Built 1991 Load: 17.1 t ADT: 5

FM

Poor

Over: WELDON RIVER

070242101, Decatur, IA

Built 1951 Load: 17.1 t ADT: 79

LOCAL

Poor

Over: SEVEN MILE CREEK

067272611, Decatur, IA

Built 1980 Load: 17.2 t ADT: 82

LOCAL

Poor

Over: KILGORE CREEK

068251503, Decatur, IA

Built 1979 Load: 17.2 t ADT: 46

FM

Poor

Over: LONG CREEK

070260903, Decatur, IA

Built 1957 Load: 17.3 t ADT: 26

FM

Poor

Over: JONATHON CREEK

069241805, Decatur, IA

Built 1961 Load: 17.5 t ADT: 40

115TH ST

Poor

Over: WOLF CREEK

070261001, Decatur, IA

Built 1957 Load: 17.6 t ADT: 34

FM

Poor

Over: WELDON RIVER

070240903, Decatur, IA

Built 1973 Load: 18.0 t ADT: 26

FM

Poor

Over: SEVEN MILE CREEK

067272401, Decatur, IA

Built 1957 Load: 18.1 t ADT: 131

LOCAL

Poor

Over: STREAM

067261406, Decatur, IA

Built 1988 Load: 18.2 t ADT: 21

FM

Poor

Over: ELK CREEK

069273506, Decatur, IA

Built 1958 Load: 18.3 t ADT: 240

FM

Poor

Over: STEELE CREEK

067240204, Decatur, IA

Built 1952 Load: 20.4 t ADT: 40

FM

Poor

Over: STREAM

068263605, Decatur, IA

Built 1940 Load: 35.5 t ADT: 60

LOCAL

Poor

Over: LITTLE RIVER

070253101, Decatur, IA

Built 1960 Load: 43.3 t ADT: 21

FM

Poor

Over: SMALL NATURAL STREAM

070273418, Decatur, IA

Built 1939 Load: 73.3 t ADT: 278

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.