Pottawattamie County, IA

469 public highway bridges

Pottawattamie County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Pottawattamie County, Iowa contains 469 public highway bridges. Roughly 32.4% are rated “Good,” 43.1% “Fair,” and 10.2% “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.

469
Total Bridges
32.4%
Good
43.1%
Fair
10.2%
Poor Condition

Condition Distribution

Good
32.4% (152)
Fair
43.1% (202)
Poor
10.2% (48)

All Bridges (469)

400TH ST

Good

Over: W NUSHNABOTNA

074400304, Pottawattamie, IA

Built 2006 Load: 45.2 t ADT: 40

US 6

Good

Over: MIDDLE SILVER CREEK

1.2 MI. E OF SR L-55, Pottawattamie, IA

Built 1989 Load: 46.1 t ADT: 2,770

46OTH STREET

Good

Over: DRAINAGE

000000000, Pottawattamie, IA

Built 2010 Load: 47.7 t ADT: 50

FM-JUNIPER ROAD

Good

Over: HENSCHAL CREEK

076432503, Pottawattamie, IA

Built 1996 Load: 48.0 t ADT: 50

US 6

Good

Over: WALNUT CREEK

0.1 mi. E of SR M-47, Pottawattamie, IA

Built 1985 Load: 48.8 t ADT: 1,070

BEECHNUT ROAD

Good

Over: MUD CREEK

074412401, Pottawattamie, IA

Built 2023 Load: 48.9 t ADT: 26

WESTGATE ROAD

Good

Over: HONEY CREEK

077430703, Pottawattamie, IA

Built 2022 Load: 48.9 t ADT: 15

IA 92

Good

Over: EAST NISHNABOTNA RIVER

1.4 MI. W OF JCT. IA 48, Pottawattamie, IA

Built 1999 Load: 49.4 t ADT: 1,180

LOCAL ROAD

Good

Over: PONY CREEK

074431202, Pottawattamie, IA

Built 1998 Load: 49.8 t ADT: 229

FM-470TH STREET

Good

Over: BEDELL CREEK

077390104, Pottawattamie, IA

Built 1990 Load: 49.8 t ADT: 71

I 29

Good

Over: DRAINAGE DITCH

2.4 miles south I-880, Pottawattamie, IA

Built 2022 Load: 50.2 t ADT: 20,600

US 6

Good

Over: GRAYBILL CREEK

2.6 MI. E OF E JCT US 59, Pottawattamie, IA

Built 1991 Load: 53.2 t ADT: 1,120

US 6

Good

Over: LITTLE SILVER CREEK

0.3 MI. W SR L-55, Pottawattamie, IA

Built 1989 Load: 53.6 t ADT: 3,410

FM-450TH STREET

Good

Over: GREYBILL CREEK

075390302, Pottawattamie, IA

Built 1974 Load: 54.5 t ADT: 60

FM-MAHOGANY RD

Good

Over: SIMON RUN

076431803, Pottawattamie, IA

Built 1976 Load: 54.5 t ADT: 199

FM-YORK ROAD

Good

Over: WALNUT CREEK

077380201, Pottawattamie, IA

Built 2005 Load: 57.2 t ADT: 26

FM-HEMLOCK AVE

Good

Over: STREAM

000000000, Pottawattamie, IA

Built 2010 Load: 60.0 t ADT: 34

FM-400TH STREET

Good

Over: SLOCUM CREEK

075401102, Pottawattamie, IA

Built 1979 Load: 60.4 t ADT: 79

FM-310TH STREET

Good

Over: LITTLE SILVER CREEK

075410502, Pottawattamie, IA

Built 1979 Load: 60.4 t ADT: 89

FM-MAHOGANY RD

Good

Over: SIMON RUN

076430705, Pottawattamie, IA

Built 1976 Load: 60.4 t ADT: 199

M16 380TH STREET

Good

Over: STREAM

076400402, Pottawattamie, IA

Built 2021 Load: 61.9 t ADT: 289

432ND STREET

Poor

Over: JORDAN CREEK

074391704, Pottawattamie, IA

Built 1968 ADT: 15

INCA LANE

Poor

Over: PIGEON CREEK

076443403, Pottawattamie, IA

Built 1924 ADT: 11

ELMTREE ROAD

Poor

Over: SILVER CREEK

075412604, Pottawattamie, IA

Built 1961 Load: 5.5 t ADT: 29

IDELWOOD ROAD

Poor

Over: WALNUT CREEK

075380301, Pottawattamie, IA

Built 1977 Load: 5.9 t ADT: 11

9TH AVE

Poor

Over: INDIAN CREEK

000000000, Pottawattamie, IA

Built 1930 Load: 8.6 t ADT: 4,059

HEMLOCK AVE

Poor

Over: GRAYBILL CREEK

075391607, Pottawattamie, IA

Built 1947 Load: 13.1 t ADT: 5

210TH STREET

Poor

Over: PIGEON CREEK

077432708, Pottawattamie, IA

Built 1952 Load: 13.2 t ADT: 40

DOGWOOD ROAD

Poor

Over: SILVER CREEK

075413501, Pottawattamie, IA

Built 1930 Load: 13.6 t ADT: 29

FM

Poor

Over: MUD CREEK

074413602, Pottawattamie, IA

Built 1976 Load: 14.7 t ADT: 20

220TH STREET

Poor

Over: PIGEON CREEK

077432602, Pottawattamie, IA

Built 1925 Load: 14.7 t ADT: 5

LOCAL

Poor

Over: JORDAN CREEK

074390301, Pottawattamie, IA

Built 1948 Load: 15.1 t ADT: 34

FM-145TH STREET

Poor

Over: DRAINAGE

077440906, Pottawattamie, IA

Built 1959 Load: 15.3 t ADT: 40

LOCAL

Poor

Over: DRAINAGE

074381206, Pottawattamie, IA

Built 1952 Load: 15.7 t ADT: 29

LOCAL

Poor

Over: GRAYBILL CREEK

074390601, Pottawattamie, IA

Built 1950 Load: 16.0 t ADT: 29

MAGNOLIA ROAD

Poor

Over: STREAM

076432003, Pottawattamie, IA

Built 1982 Load: 16.0 t ADT: 11

LOCAL

Poor

Over: GRAYBILL CREEK

074402403, Pottawattamie, IA

Built 1951 Load: 16.1 t ADT: 26

EDISON LANE

Poor

Over: JORDAN CREEK

075392303, Pottawattamie, IA

Built 1976 Load: 16.2 t ADT: 5

LOCAL RD

Poor

Over: INDIAN CREEK

074381701, Pottawattamie, IA

Built 1950 Load: 17.0 t ADT: 29

MISSOURI AVENUE

Poor

Over: WALNUT CREEK

076381501, Pottawattamie, IA

Built 1953 Load: 17.6 t ADT: 26

TEAKWOOD ROAD

Poor

Over: NEOLA CREEK

077422401, Pottawattamie, IA

Built 1978 Load: 17.7 t ADT: 60

250TH STREET

Poor

Over: STREAM

074421704, Pottawattamie, IA

Built 1940 Load: 18.5 t ADT: 11

FM-310TH STREET

Poor

Over: IAIS RR

076412002, Pottawattamie, IA

Built 1952 Load: 19.3 t ADT: 110

SUMAC ROAD

Poor

Over: STREAM

077383101, Pottawattamie, IA

Built 1992 Load: 19.3 t ADT: 11

390TH STREET

Poor

Over: IAIS RR

076402202, Pottawattamie, IA

Built 1952 Load: 19.6 t ADT: 11

3RD AVE

Poor

Over: INDIAN CREEK

000000000, Pottawattamie, IA

Built 1935 Load: 20.7 t ADT: 179

310TH STREET

Poor

Over: STREAM

075413202, Pottawattamie, IA

Built 1994 Load: 21.0 t ADT: 60

LOMBARDY ROAD

Poor

Over: LITTLE SILVER CREEK

076412701, Pottawattamie, IA

Built 1989 Load: 21.1 t ADT: 20

515TH STREET

Poor

Over: STREAM

077382206, Pottawattamie, IA

Built 1991 Load: 21.7 t ADT: 5

LOCAL

Poor

Over: DRAINAGE

074380401, Pottawattamie, IA

Built 1995 Load: 21.8 t ADT: 11

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.