Woodbury County, IA

379 public highway bridges

Woodbury County Bridge Snapshot

Woodbury County, Iowa contains 379 public highway bridges in the FHWA National Bridge Inventory. Roughly 34.3% are rated “Good,” 31.7% “Fair,” 23% “Poor,” and 23% are classified as structurally deficient — the federal designation for spans whose deck, superstructure, or substructure has been rated 4 or below on the 0–9 NBI scale. Structurally deficient does not mean unsafe to cross; it means the bridge is on the priority list for repair or replacement.

Inspections in IA are conducted by certified engineers from the state Department of Transportation on a 24-month cycle, and results are reported back to the FHWA each spring. The list below shows every NBI-tracked bridge in the county, sorted by inventory load rating. Use the “Sort by” controls to surface the lowest-rated spans first, and click any row for full inspection history, traffic counts, and condition trends.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

379

Total Bridges

34.3%

Good

23%

Poor

23%

Structurally Deficient

Condition Distribution

Good

34.3% (130)

Fair

31.7% (120)

Poor

23% (87)

SD

23% (87)

All Bridges (379)

Sort:

FM

Over: WOLF CREEK

0874414, Woodbury, IA

Built 1967 Load: 30.4 t ADT: 71

FM

Over: WOLF CREEK

0874415, Woodbury, IA

Built 1967 Load: 30.4 t ADT: 71

FM

Over: WRIGHT CREEK

088422102, Woodbury, IA

Built 1968 Load: 30.4 t ADT: 379

FM

Over: WOLF CREEK

088440503, Woodbury, IA

Built 1967 Load: 30.4 t ADT: 359

SB IA 376

Over: DRY CREEK

0.1 mi N of SR D12, Woodbury, IA

Built 1956 Load: 30.6 t ADT: 3,750

FM

Over: DRAINAGE DITCH

087462201, Woodbury, IA

Built 1974 Load: 30.6 t ADT: 279

LOCAL

Over: ELLIOT CREEK

088461001, Woodbury, IA

Built 1980 Load: 30.8 t ADT: 34

MILITARY RD

Over: BIG SIOUX RIVER

000000000, Woodbury, IA

Built 1976 Load: 30.8 t ADT: 7,542

FM

Over: MAPLE RIVER

086422605, Woodbury, IA

Built 1979 Load: 31.0 t ADT: 100

IA 141

Over: SMOKEY HOLLOW CREEK

0.2 mi. E of Jct. IA 31, Woodbury, IA

Built 1959 Load: 31.5 t ADT: 1,640

ELM ST

Over: PIERSON CREEK

089431204, Woodbury, IA

Built 1982 Load: 31.8 t ADT: 96

LOCAL

Over: MCELHANEY CREEK

089441302, Woodbury, IA

Built 1982 Load: 31.8 t ADT: 34

US 20 EB

Over: ELLIOT CREEK

6.0 mi. W of jct. IA 140, Woodbury, IA

Built 2015 Load: 32.4 t ADT: 5,200

US 20 EB

Over: LITTLE SIOUX RIVER

0.4 mi. W of jct. IA 31, Woodbury, IA

Built 2017 Load: 32.4 t ADT: 3,250

IA 141

Over: WOLFE CREEK DITCH

2.0 mi. E of SR K64, Woodbury, IA

Built 1959 Load: 32.4 t ADT: 1,490

I 29 SB

Over: FLOYD RIVER

3.5 MI. N OF N JCT. US 75, Woodbury, IA

Built 2015 Load: 32.4 t ADT: 15,400

I 29 NB

Over: FLOYD RIVER

3.5 Mi. N of N Jct. US 75, Woodbury, IA

Built 2016 Load: 32.4 t ADT: 17,200

IA 31

Over: STREAM

1.9 mi. N of SR D30, Woodbury, IA

Built 1956 Load: 32.7 t ADT: 1,070

FM

Over: SMALL CREEK

086420404, Woodbury, IA

Built 1978 Load: 32.7 t ADT: 350

LOCAL

Over: SMALL STREAM

0864225, Woodbury, IA

Built 1984 Load: 32.7 t ADT: 26

LOCAL

Over: MOREHEAD CREEK

0874213, Woodbury, IA

Built 1990 Load: 32.7 t ADT: 15

LOCAL

Over: REYNOLDS CREEK

0874233, Woodbury, IA

Built 1992 Load: 32.7 t ADT: 26

FM

Over: E.BR.WOLF CREEK

0874402, Woodbury, IA

Built 1992 Load: 32.7 t ADT: 399

FM

Over: ELLIOTT CREEK

088461404, Woodbury, IA

Built 1994 Load: 32.7 t ADT: 80

LOCAL

Over: DEER CREEK

088462703, Woodbury, IA

Built 1990 Load: 32.7 t ADT: 40

WHISPERING CREE

Over: MORNINGSIDE CREEK

000000000, Woodbury, IA

Built 1984 Load: 32.7 t ADT: 3,918

LOCAL

Over: LITTLE WHISKEY CREEK

088471101, Woodbury, IA

Built 1984 Load: 32.7 t ADT: 71

FM

Over: PIERSON CREEK

0894207, Woodbury, IA

Built 1976 Load: 32.7 t ADT: 211

KNOX AVE

Over: SMALL CREEK

089432002, Woodbury, IA

Built 1979 Load: 32.7 t ADT: 60

LOCAL

Over: STREAM

089452001, Woodbury, IA

Built 1977 Load: 32.7 t ADT: 15

LOCAL

Over: ELLIOTT CREEK

089452101, Woodbury, IA

Built 1977 Load: 32.7 t ADT: 34

LOCAL

Over: STREAM

089462301, Woodbury, IA

Built 1977 Load: 32.7 t ADT: 30

LOCAL

Over: STREAM

0894332, Woodbury, IA

Built 2006 Load: 33.3 t ADT: 30

HAMILTN AT 35TH

Over: PERRY CREEK

000000000, Woodbury, IA

Built 1970 Load: 34.3 t ADT: 14,345

FM

Over: LITTLE SIOUX RIVER

088433305, Woodbury, IA

Built 1992 Load: 34.8 t ADT: 679

D-25

Over: ABANDONED RR

088470906, Woodbury, IA

Built 1978 Load: 35.7 t ADT: 2,633

IA 31

Over: LITTLE SIOUX RIVER

0.8 mi S of jct US 20, Woodbury, IA

Built 1973 Load: 36.0 t ADT: 1,120

US 20 RAMP

Over: ABAND RR

0.1 mi. E of SR D25, Woodbury, IA

Built 1978 Load: 36.8 t ADT: 1,200

IA 31

Over: STREAM

3.1 mi. S of SR D22, Woodbury, IA

Built 1956 Load: 36.9 t ADT: 1,070

FM

Over: MAPLE RIVER

086422708, Woodbury, IA

Built 1985 Load: 37.0 t ADT: 429

NB IA 376

Over: DRY CREEK

0.1 mi. N of Jct. SR D12, Woodbury, IA

Built 1931 Load: 37.6 t ADT: 3,750

LOCAL

Over: WRIGHT CREEK

0884230, Woodbury, IA

Built 1983 Load: 38.4 t ADT: 26

WB US 20

Over: BIG WHISKEY CREEK

1.9 mi. W of S.R. K42, Woodbury, IA

Built 2010 Load: 38.5 t ADT: 5,600

LOCAL

Over: STREAM

0894220, Woodbury, IA

Built 2004 Load: 38.8 t ADT: 26

FM

Over: STREAM

086453606, Woodbury, IA

Built 1959 Load: 39.4 t ADT: 90

US 75 SB

Over: FLOYD RIVER

5.3 mi. N of US 20/IA 12, Woodbury, IA

Built 1999 Load: 40.4 t ADT: 5,650

EB US 20

Over: ABANDON RR

0.1 mi. E of SR D25, Woodbury, IA

Built 1978 Load: 40.5 t ADT: 12,750

IA 31

Over: DRY CREEK

2.2 mi. S of jct SR D54, Woodbury, IA

Built 1988 Load: 41.7 t ADT: 850

IA 140

Over: MC ELHANEY CREEK

1.4 mi. N of US 20, Woodbury, IA

Built 1983 Load: 41.8 t ADT: 1,930

FM

Over: ELLIOTT CREEK

089451001, Woodbury, IA

Built 1969 Load: 43.4 t ADT: 709

Read our methodology — how this data is sourced, computed, and verified.

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Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial

Reviewed byPlainbridges Editorial, Plain Bridges Editorial Team · June 5, 2026