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)

Sort:

NB I-35

Over: 324TH STREET

AT MISSOURI STATE LINE, Decatur, IA

Built 1970 ADT: 195

NB I-35

Over: 310TH ST

2.5 mi. S of US 69, Decatur, IA

Built 1970 ADT: 65

198TH STREET

Over: I-35

1.3 mi. N of Jct. IA 2, Decatur, IA

Built 1969 ADT: 14,600

FM

Over: I 35

4.5 mi. N of Jct. IA 2, Decatur, IA

Built 1969 ADT: 14,600

J14

Over: I-35

At the Jct. SR J14, Decatur, IA

Built 1968 ADT: 15,100

REST AREA ROAD

Over: REST AREA ROAD

3.0 MI. N OF Jct. U.S. 69, Decatur, IA

Built 1994 ADT: 13,800

LOCAL

Over: S ELK CREEK

068271601, Decatur, IA

Built 2011 Load: 11.1 t ADT: 11

LOCAL

Over: INDIAN CREEK

067262005, Decatur, IA

Built 1905 Load: 12.4 t ADT: 5

LOCAL

Over: JONATHAN CREEK

070243102, Decatur, IA

Built 1965 Load: 13.9 t ADT: 35

LOCAL

Over: BRITTON BRANCH

068261205, Decatur, IA

Built 2000 Load: 14.3 t ADT: 15

FM

Over: LONG CREEK

070263205, Decatur, IA

Built 1957 Load: 14.5 t ADT: 627

FM

Over: BRUSH CREEK

069273606, Decatur, IA

Built 1954 Load: 15.0 t ADT: 60

LOCAL

Over: JONATHAN CREEK

070252604, Decatur, IA

Built 1996 Load: 15.1 t ADT: 15

FM

Over: STREAM

068262601, Decatur, IA

Built 1968 Load: 15.5 t ADT: 20

LOCAL

Over: LONG CREEK

069260503, Decatur, IA

Built 1984 Load: 15.8 t ADT: 21

LOCAL

Over: TURKEY RUN

068240302, Decatur, IA

Built 1951 Load: 16.0 t ADT: 5

FM

Over: HOG CREEK

068242506, Decatur, IA

Built 1955 Load: 16.0 t ADT: 20

LOCAL

Over: S ELK CREEK

068270903, Decatur, IA

Built 2002 Load: 16.0 t ADT: 11

FM

Over: ELK CREEK

069270503, Decatur, IA

Built 1950 Load: 16.0 t ADT: 26

FM

Over: ELK CREEK

069270805, Decatur, IA

Built 2000 Load: 16.2 t ADT: 26

LOCAL

Over: ELK CREEK

069272803, Decatur, IA

Built 1957 Load: 16.9 t ADT: 62

LOCAL

Over: KILGORE

067251204, Decatur, IA

Built 2001 Load: 17.1 t ADT: 41

FM

Over: LITTLE RIVER

068253303, Decatur, IA

Built 1957 Load: 17.1 t ADT: 40

LOCAL

Over: TRIB TO GRAND RIVER

069270203, Decatur, IA

Built 1969 Load: 17.1 t ADT: 26

FM

Over: STREAM

069263002, Decatur, IA

Built 1998 Load: 17.2 t ADT: 40

290TH AVE

Over: WELDON CREEK

070241702, Decatur, IA

Built 2012 Load: 17.2 t ADT: 29

LOCAL

Over: STEEL CREEK

069243603, Decatur, IA

Built 1989 Load: 17.3 t ADT: 5

LOCAL

Over: KILGORE CREEK

068252603, Decatur, IA

Built 2001 Load: 17.4 t ADT: 51

LOCAL

Over: STREAM

068262701, Decatur, IA

Built 1967 Load: 18.1 t ADT: 11

LOCAL

Over: STREAM

069242502, Decatur, IA

Built 1910 Load: 18.4 t ADT: 15

LOCAL

Over: STREAM

068252908, Decatur, IA

Built 1958 Load: 18.8 t ADT: 51

FM

Over: GRAND RIVER

070273403, Decatur, IA

Built 1956 Load: 18.9 t ADT: 627

FM

Over: DICKENSON BRANCH

067261104, Decatur, IA

Built 1963 Load: 19.5 t ADT: 329

LOCAL

Over: STREAM

068243402, Decatur, IA

Built 2002 Load: 21.1 t ADT: 15

US 69

Over: LITTLE RIVER

3.8 MI. N OF SR J66, Decatur, IA

Built 1953 Load: 22.3 t ADT: 820

FM

Over: WELDON RIVER

067242201, Decatur, IA

Built 1951 Load: 22.6 t ADT: 170

LOCAL

Over: SMALL STREAM

068252806, Decatur, IA

Built 1997 Load: 22.7 t ADT: 30

FM

Over: STEEL CREEK

068241403, Decatur, IA

Built 1984 Load: 24.5 t ADT: 10

FM

Over: GRAND RIVER

069262007, Decatur, IA

Built 1967 Load: 26.8 t ADT: 29

LOCAL

Over: KILGORE CREEK

068251003, Decatur, IA

Built 1994 Load: 27.8 t ADT: 5

IA 2

Over: MCGRUDER CREEK

1.5 MI. E OF E JCT US 69, Decatur, IA

Built 1984 Load: 29.0 t ADT: 1,720

FIELD ENTRANCE

Over: SIDE DITCH

067261004, Decatur, IA

Built 1994 Load: 29.2 t ADT: 10

NB I-35

Over: GRAND RIVER

3.1 mi. N of Jct. US 69, Decatur, IA

Built 1970 Load: 29.8 t ADT: 7,550

IA 2

Over: ELK CREEK

0.3 MI. W OF SR R18, Decatur, IA

Built 1985 Load: 30.3 t ADT: 1,350

IA 2

Over: W BRANCH LITTLE RIVER

1.2 MI. W OF W JCT. US 69, Decatur, IA

Built 1986 Load: 30.5 t ADT: 1,960

LOCAL

Over: SHANE CREEK

067271701, Decatur, IA

Built 1978 Load: 31.5 t ADT: 30

FM

Over: LICK BRANCH

067241703, Decatur, IA

Built 1989 Load: 32.7 t ADT: 170

FM

Over: STREAM

067242103, Decatur, IA

Built 1990 Load: 32.7 t ADT: 170

FM

Over: TURKEY RUN CREEK

068240504, Decatur, IA

Built 1992 Load: 32.7 t ADT: 15

FM

Over: LITTLE RIVER

069250601, Decatur, IA

Built 1979 Load: 32.7 t ADT: 428

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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Compiled by PlainBridges, Independent data publisher

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.