Poweshiek County, IA

221 public highway bridges

Poweshiek County Bridge Snapshot

Poweshiek County, Iowa contains 221 public highway bridges in the FHWA National Bridge Inventory. Roughly 22.6% are rated “Good,” 30.8% “Fair,” 44.3% “Poor,” and 44.3% 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.

221
Total Bridges
22.6%
Good
44.3%
Poor
44.3%
Structurally Deficient

Condition Distribution

Good
22.6% (50)
Fair
30.8% (68)
Poor
44.3% (98)
SD
44.3% (98)

All Bridges (221)

FM

Good

Over: WALNUT CREEK

081131001, Poweshiek, IA

Built 1983 Load: 33.6 t ADT: 30

LOCAL

Good

Over: STREAM

080163001, Poweshiek, IA

Built 2006 Load: 33.7 t ADT: 100

420TH AVE

Good

Over: BR NORTH ENGLISH RIVER

079160101, Poweshiek, IA

Built 2023 Load: 34.1 t ADT: 30

400TH AVE

Good

Over: STREAM

080163001, Poweshiek, IA

Built 2020 Load: 34.1 t ADT: 100

CLAY ST

Good

Over: OVER IAIS RR

080142303, Poweshiek, IA

Built 2002 Load: 35.9 t ADT: 2,648

FM

Good

Over: SOUTH ENGLISH RIVER

078142002, Poweshiek, IA

Built 2002 Load: 36.5 t ADT: 30

LOCAL

Good

Over: WALNUT CREEK

081141504, Poweshiek, IA

Built 1989 Load: 37.2 t ADT: 45

LOCAL

Good

Over: BIG BEAR CREEK

080141402, Poweshiek, IA

Built 1991 Load: 37.7 t ADT: 45

FM

Good

Over: BIG BEAR CREEK

080131702, Poweshiek, IA

Built 1988 Load: 38.8 t ADT: 70

LOCAL

Good

Over: N ENGLISH RIVER

079151402, Poweshiek, IA

Built 2008 Load: 40.0 t ADT: 26

V 21 (200TH ST)

Good

Over: NORTH ENGLISH RIVER

079131708, Poweshiek, IA

Built 2012 Load: 41.5 t ADT: 15

370TH AVE

Good

Over: STONY CREEK

080141001, Poweshiek, IA

Built 2022 Load: 41.5 t ADT: 40

US 6

Good

Over: BEAR CREEK

1.5 mi W of W jct. SR V18, Poweshiek, IA

Built 2008 Load: 44.6 t ADT: 2,040

FM

Good

Over: LITTLE BEAR CREEK

080142801, Poweshiek, IA

Built 2007 Load: 45.3 t ADT: 30

LOCAL

Good

Over: STREAM

080162002, Poweshiek, IA

Built 1956 Load: 47.8 t ADT: 200

230TH ST

Good

Over: WALNUT CREEK

81130202, Poweshiek, IA

Built 2009 Load: 48.8 t ADT: 20

LOCAL

Good

Over: DEEP RIVER

078130406, Poweshiek, IA

Built 2004 Load: 49.8 t ADT: 11

LOCAL

Good

Over: LITTLE BEAR CREEK

080152104, Poweshiek, IA

Built 2003 Load: 49.8 t ADT: 30

LOCAL

Good

Over: WALNUT CREEK

081130602, Poweshiek, IA

Built 2004 Load: 49.8 t ADT: 34

FM

Good

Over: WALNUT CREEK

081141602, Poweshiek, IA

Built 2000 Load: 52.9 t ADT: 60

FM

Good

Over: BIG BEAR CREEK

081162001, Poweshiek, IA

Built 2002 Load: 52.9 t ADT: 340

510TH AVE

Good

Over: MOON CREEK

078152201, Poweshiek, IA

Built 2022 Load: 58.9 t ADT: 5

FOREST HOME RD

Good

Over: STREAM

078153003, Poweshiek, IA

Built 2021 Load: 65.2 t ADT: 60

LOCAL

Poor

Over: SUGAR CREEK

079162003, Poweshiek, IA

Built 1923 ADT: 50

LOCAL

Poor

Over: DEEP RIVER

078130102, Poweshiek, IA

Built 1983 Load: 3.4 t ADT: 20

LOCAL

Poor

Over: STREAM

078133401, Poweshiek, IA

Built 1920 Load: 8.6 t ADT: 11

LOCAL

Poor

Over: WALNUT CREEK

081151902, Poweshiek, IA

Built 1928 Load: 8.6 t ADT: 15

FM

Poor

Over: SOUTH ENGLISH RIVER

078142002, Poweshiek, IA

Built 1990 Load: 9.3 t ADT: 30

LOCAL

Poor

Over: N ENGLISH RIVER

079160102, Poweshiek, IA

Built 1924 Load: 9.3 t ADT: 15

FM

Poor

Over: BIG BEAR CREEK

081162702, Poweshiek, IA

Built 1955 Load: 11.5 t ADT: 60

LOCAL

Poor

Over: NORTH ENGLISH RIVER

079161201, Poweshiek, IA

Built 1983 Load: 12.1 t ADT: 30

LOCAL

Poor

Over: LITTLE BEAR CREEK

080143004, Poweshiek, IA

Built 1952 Load: 12.4 t ADT: 20

LOCAL

Poor

Over: SOUTH ENGLISH RIVER

078143502, Poweshiek, IA

Built 1974 Load: 13.2 t ADT: 40

LOCAL

Poor

Over: NORTH WALNUT CREEK

081140302, Poweshiek, IA

Built 1979 Load: 13.3 t ADT: 30

FM

Poor

Over: SMALL STREAM

079163403, Poweshiek, IA

Built 1948 Load: 13.7 t ADT: 15

LOCAL

Poor

Over: BEAR CREEK

080132302, Poweshiek, IA

Built 1946 Load: 14.0 t ADT: 140

LOCAL

Poor

Over: BEAR CREEK

080140702, Poweshiek, IA

Built 1950 Load: 14.5 t ADT: 60

LOCAL

Poor

Over: BEAR CREEK

080141304, Poweshiek, IA

Built 1935 Load: 14.7 t ADT: 26

FM

Poor

Over: DEEP RIVER

079143207, Poweshiek, IA

Built 1949 Load: 15.1 t ADT: 30

LOCAL

Poor

Over: SMALL STREAM

081131202, Poweshiek, IA

Built 1950 Load: 15.7 t ADT: 34

LOCAL

Poor

Over: STONY CREEK

080140306, Poweshiek, IA

Built 1923 Load: 16.1 t ADT: 26

LOCAL

Poor

Over: BRANCH IOWA RIVER

081140201, Poweshiek, IA

Built 1988 Load: 16.6 t ADT: 60

LOCAL

Poor

Over: STREAM

079140702, Poweshiek, IA

Built 1956 Load: 16.7 t ADT: 11

FM

Poor

Over: ROCK CREEK

081133101, Poweshiek, IA

Built 1973 Load: 16.7 t ADT: 50

LOCAL

Poor

Over: STREAM

080130501, Poweshiek, IA

Built 1954 Load: 17.1 t ADT: 30

LOCAL

Poor

Over: BIG BEAR CREEK

080141412, Poweshiek, IA

Built 1951 Load: 17.1 t ADT: 161

LOCAL

Poor

Over: WALNUT CREEK

081130104, Poweshiek, IA

Built 1951 Load: 17.2 t ADT: 40

FM

Poor

Over: NORTH SKUNK RIVER

078162704, Poweshiek, IA

Built 1958 Load: 17.8 t ADT: 70

LOCAL

Poor

Over: BIG BEAR CREEK

080140808, Poweshiek, IA

Built 1951 Load: 18.1 t ADT: 60

FM

Poor

Over: BIG BEAR CREEK

080132402, Poweshiek, IA

Built 1950 Load: 18.3 t ADT: 50

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