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

Fair

Over: LITTLE RIVER

069260201, Decatur, IA

Built 1979 Load: 32.7 t ADT: 428

LOCAL

Fair

Over: MORMON POOL

070242702, Decatur, IA

Built 1995 Load: 32.7 t ADT: 51

FM

Fair

Over: STREAM

070262207, Decatur, IA

Built 1994 Load: 32.7 t ADT: 15

H50 130TH AVE

Fair

Over: SHORT CREEK

070270302, Decatur, IA

Built 1988 Load: 32.7 t ADT: 11

FM

Fair

Over: LITTLE RIVER

068250603, Decatur, IA

Built 2000 Load: 33.0 t ADT: 26

FM

Fair

Over: GRAND RIVER

070272702, Decatur, IA

Built 1959 Load: 33.1 t ADT: 89

FM

Fair

Over: TRIB GRAND RIVER

070273604, Decatur, IA

Built 1967 Load: 34.0 t ADT: 50

FM

Fair

Over: CALEB CREEK

067241404, Decatur, IA

Built 1977 Load: 36.9 t ADT: 379

IA 2

Fair

Over: WEST ELK CREEK

6.7 mi. W of Jct. I-35, Decatur, IA

Built 1985 Load: 40.5 t ADT: 930

FM

Fair

Over: TRIB GRAND RIVER

068262302, Decatur, IA

Built 1957 Load: 43.5 t ADT: 34

IA 2

Fair

Over: WELDON RIVER

6.0 mi. E of E Jct US 69, Decatur, IA

Built 1984 Load: 45.5 t ADT: 1,330

IA 2

Fair

Over: BRUSH CREEK

3.6 MI. W OF JCT. I-35, Decatur, IA

Built 1985 Load: 48.0 t ADT: 1,350

FM

Fair

Over: WELDON RIVER

068240504, Decatur, IA

Built 1993 Load: 52.9 t ADT: 15

IA 2

Fair

Over: GRAND RIVER

3.0 MI. W 0F JCT. I-35, Decatur, IA

Built 1985 Load: 83.4 t ADT: 1,350

225TH ST

Good

Over: ELK CREEK

068270203, Decatur, IA

Built 2008 Load: 9.8 t ADT: 21

FM

Good

Over: BRUSH CREEK

069251302, Decatur, IA

Built 2006 Load: 13.4 t ADT: 34

275TH ST

Good

Over: STREAM

0682532303, Decatur, IA

Built 2011 Load: 14.0 t ADT: 40

290TH ST

Good

Over: DICKENSON BRANCH

067260305, Decatur, IA

Built 2011 Load: 14.3 t ADT: 5

140TH ST

Good

Over: LITTLE RIVER

070253001, Decatur, IA

Built 2005 Load: 14.4 t ADT: 41

LOCAL

Good

Over: STREAM

069270314, Decatur, IA

Built 2005 Load: 14.5 t ADT: 11

LOCAL

Good

Over: LITTLE RIVER

068251803, Decatur, IA

Built 1999 Load: 16.0 t ADT: 35

LOCAL

Good

Over: STEEL CREEK

068240205, Decatur, IA

Built 1999 Load: 17.4 t ADT: 11

LOCAL

Good

Over: SHORT CREEK

070270204, Decatur, IA

Built 2010 Load: 17.9 t ADT: 26

FM

Good

Over: SHORT CREEK

070271303, Decatur, IA

Built 1994 Load: 17.9 t ADT: 15

LOCAL

Good

Over: STREAM

069271202, Decatur, IA

Built 2003 Load: 18.0 t ADT: 11

LOCAL

Good

Over: WELDON RIVER

068240403, Decatur, IA

Built 1997 Load: 21.0 t ADT: 5

FM

Good

Over: ZADIE CREEK

067272203, Decatur, IA

Built 2003 Load: 22.1 t ADT: 71

IA 2

Good

Over: STREAM

1.0 MI E OF E JCT US 69, Decatur, IA

Built 1927 Load: 22.7 t ADT: 1,720

J 52 280TH ST

Good

Over: DICKENSON BRANCH

067260403, Decatur, IA

Built 2018 Load: 26.7 t ADT: 103

PLEASANTON RD

Good

Over: MCGRUDER CREEK

068250406, Decatur, IA

Built 2015 Load: 32.4 t ADT: 329

R15 125TH AVE

Good

Over: GRAND RIVER

070271604, Decatur, IA

Built 2018 Load: 32.4 t ADT: 219

R15 125TH AVE

Good

Over: SAND CREEK

070272110, Decatur, IA

Built 2019 Load: 32.4 t ADT: 219

LOCAL

Good

Over: DICKERSON BRANCH

067260401, Decatur, IA

Built 2000 Load: 32.7 t ADT: 103

FM

Good

Over: WELDON RIVER

068241701, Decatur, IA

Built 2003 Load: 32.7 t ADT: 10

FM

Good

Over: KILGORE CREEK

068253503, Decatur, IA

Built 1986 Load: 33.3 t ADT: 29

215TH ST

Good

Over: MCGRUDER CREEK

069253303, Decatur, IA

Built 2016 Load: 33.3 t ADT: 110

FM

Good

Over: WELDON RIVER

068241602, Decatur, IA

Built 1994 Load: 35.3 t ADT: 34

SB I-35

Good

Over: STREAM

2.0 mi. N of MO St. Line, Decatur, IA

Built 1970 Load: 37.0 t ADT: 7,100

FM

Good

Over: GRAND RIVER

068261708, Decatur, IA

Built 1984 Load: 38.5 t ADT: 20

FM

Good

Over: BRUSH CREEK

068240501, Decatur, IA

Built 2001 Load: 41.5 t ADT: 45

FM

Good

Over: STREAM

070270904, Decatur, IA

Built 2006 Load: 45.7 t ADT: 219

J 66

Good

Over: STREAM

067251812, Decatur, IA

Built 2013 Load: 46.0 t ADT: 329

FM

Good

Over: JONATHAN CREEK

069240601, Decatur, IA

Built 2003 Load: 50.0 t ADT: 421

R30 150TH AVE

Good

Over: EAST FORK BIG CREEK

068273602, Decatur, IA

Built 2017 Load: 50.9 t ADT: 210

LOCAL

Good

Over: STREAM

070273102, Decatur, IA

Built 1996 Load: 51.0 t ADT: 5

FM

Good

Over: BRUSH CREEK

069243104, Decatur, IA

Built 2004 Load: 52.2 t ADT: 40

LOCAL

Good

Over: BEE CREEK

070260301, Decatur, IA

Built 1993 Load: 52.7 t ADT: 20

POPCORN RD

Good

Over: LITTLE RIVER

070251901, Decatur, IA

Built 2016 Load: 55.2 t ADT: 41

R46 PLEASANTON RD

Good

Over: SMALL STREAM

067251004, Decatur, IA

Built 2017 Load: 70.6 t ADT: 110

LOCAL

Poor

Over: LICK BRANCH OF WELDON R

067240501, Decatur, IA

Built 1958 ADT: 26

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.