Pottawattamie County, IA

469 public highway bridges

Pottawattamie County Bridge Snapshot

Pottawattamie County, Iowa contains 469 public highway bridges in the FHWA National Bridge Inventory. Roughly 32.4% are rated “Good,” 43.1% “Fair,” 10.2% “Poor,” and 10.2% 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.

469

Total Bridges

32.4%

Good

10.2%

Poor

10.2%

Structurally Deficient

Condition Distribution

Good

32.4% (152)

Fair

43.1% (202)

Poor

10.2% (48)

SD

10.2% (48)

All Bridges (469)

Sort:

460TH ST

Over: JORDAN CREEK

075393404, Pottawattamie, IA

Built 2013 Load: 27.7 t ADT: 11

YORK ROAD

Over: DRAINAGE

077400501, Pottawattamie, IA

Built 1966 Load: 27.9 t ADT: 71

410TH STREET

Over: IAIS RR

076401407, Pottawattamie, IA

Built 1950 Load: 28.0 t ADT: 15

EASTERN HILLS D

Over: STREAM

000000000, Pottawattamie, IA

Built 2005 Load: 28.0 t ADT: 151

FM-HONEYSUCKLE

Over: WEST NISHNABOTNA RIVER

075401109, Pottawattamie, IA

Built 1967 Load: 28.1 t ADT: 550

ASPEN ROAD

Over: MUD CREEK

074413601, Pottawattamie, IA

Built 2009 Load: 28.3 t ADT: 26

IA 92

Over: SILVER CREEK

2.8 mi. E of Treynor, Pottawattamie, IA

Built 1955 Load: 28.7 t ADT: 2,920

US 59

Over: JIM CREEK

3.5 MI. S OF JCT. IA 83, Pottawattamie, IA

Built 1986 Load: 28.9 t ADT: 1,490

I 880 EB

Over: MOSQUITO CREEK

0.5 MI. E OF JCT. IA 191, Pottawattamie, IA

Built 1966 Load: 29.0 t ADT: 2,900

MCPHERSON AVE

Over: OVER BNSF RR

000000000, Pottawattamie, IA

Built 1990 Load: 29.0 t ADT: 3,786

432ND ST

Over: FARM CREEK

00000, Pottawattamie, IA

Built 2011 Load: 29.1 t ADT: 15

400TH STREET

Over: DRAINAGE

077401102, Pottawattamie, IA

Built 1948 Load: 29.2 t ADT: 40

US 275 & IA 92

Over: OVER BNSF RR/SM STREAM

0.4 MI. N OF N Jct I-29, Pottawattamie, IA

Built 1968 Load: 29.3 t ADT: 5,050

IA 906 EB

Over: MOSQUITO CREEK

1.0 mi. W of Jct. I-80, Pottawattamie, IA

Built 1968 Load: 29.4 t ADT: 3,900

NB I-29

Over: PONY CREEK

2.3 MI. N OF IA 370, Pottawattamie, IA

Built 1968 Load: 29.7 t ADT: 12,100

SB I-29

Over: PONY CREEK

2.3 MI. N OF IA 370, Pottawattamie, IA

Built 1968 Load: 29.7 t ADT: 12,100

WB I-80

Over: E BR W NISHNABOTNA RIVER

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

Built 1965 Load: 29.7 t ADT: 11,900

EB I-680

Over: MISSOURI RIVER & CITY ST

@ NORTH OMAHA, NE, Pottawattamie, IA

Built 1952 Load: 29.8 t ADT: 9,150

380TH STREET

Over: STREAM

075402102, Pottawattamie, IA

Built 1953 Load: 29.9 t ADT: 26

FM-440TH STREET

Over: GRAYBILL CREEK

075391604, Pottawattamie, IA

Built 1972 Load: 30.2 t ADT: 50

FM-DOGWOOD RD

Over: GRAYBILL CREEK

075393101, Pottawattamie, IA

Built 1982 Load: 30.2 t ADT: 71

ROSEWOOD ROAD

Over: STREAM

076380301, Pottawattamie, IA

Built 1942 Load: 30.2 t ADT: 5

JUNIPER ROAD

Over: GRAYBILL CREEK

076393401, Pottawattamie, IA

Built 1982 Load: 30.2 t ADT: 20

US 6

Over: SILVER CREEK

1.0 MI. E OF SR L66, Pottawattamie, IA

Built 1961 Load: 30.4 t ADT: 2,770

FM

Over: FARM CREEK

074392801, Pottawattamie, IA

Built 1963 Load: 30.4 t ADT: 71

HONEYSUCKLE RD

Over: SLOCUM CREEK

075401103, Pottawattamie, IA

Built 1961 Load: 30.4 t ADT: 548

ORCHARD ROAD

Over: LITTLE MOSQUITO

075432804, Pottawattamie, IA

Built 1973 Load: 30.4 t ADT: 1,047

FM-MAHOGANY RD

Over: GREYBILL CREEK

076391301, Pottawattamie, IA

Built 1961 Load: 30.4 t ADT: 300

MAHOGANY ROAD

Over: BRANCH OF SILVER CREEK

076401603, Pottawattamie, IA

Built 1961 Load: 30.4 t ADT: 349

FM-WESTGATE RD

Over: PIGEON CREEK

077421703, Pottawattamie, IA

Built 1972 Load: 30.4 t ADT: 50

ELMTREE ROAD

Over: GRAYBILL CREEK

075392901, Pottawattamie, IA

Built 1940 Load: 30.5 t ADT: 20

US 59

Over: DRAINAGE DITCH

2.4 MI. N OF N JCT. US 6, Pottawattamie, IA

Built 1930 Load: 30.6 t ADT: 1,780

DEAD END RD

Over: MOSQUITO CREEK

D10100500, Pottawattamie, IA

Built 1934 Load: 30.9 t ADT: 288

DOGWOOD ROAD

Over: DRAINAGE

075403401, Pottawattamie, IA

Built 1998 Load: 31.3 t ADT: 26

ROSEWOOD ROAD

Over: SILVER CREEK

076400401, Pottawattamie, IA

Built 1994 Load: 31.4 t ADT: 15

MCPHERSON AVE

Over: MOSQUITO CREEK

000000000, Pottawattamie, IA

Built 1993 Load: 32.0 t ADT: 3,786

US 59

Over: STREAM

0.9 MI. S OF S JCT SR G30, Pottawattamie, IA

Built 1952 Load: 32.2 t ADT: 1,780

US 6

Over: LITTLE KEG CREEK

0.2 MI. W OF SR G-60, Pottawattamie, IA

Built 1968 Load: 32.7 t ADT: 4,110

CO RD G18

Over: KEG CREEK

077411107, Pottawattamie, IA

Built 1990 Load: 32.7 t ADT: 658

CO RD G18

Over: MIDDLE SILVER CREEK

077401701, Pottawattamie, IA

Built 1990 Load: 32.7 t ADT: 658

CO RD G18

Over: SILVER CREEK

077401501, Pottawattamie, IA

Built 1992 Load: 32.7 t ADT: 967

CO RD G18

Over: WEST NISHNABOTNA RIVER

077391703, Pottawattamie, IA

Built 1975 Load: 32.7 t ADT: 967

IA 92

Over: JORDAN CREEK

3.5 MI. E OF JCT. 59, Pottawattamie, IA

Built 1932 Load: 32.7 t ADT: 1,180

OLD LINCOLN HWY

Over: LAPWORTH CREEK

076443608, Pottawattamie, IA

Built 1942 Load: 32.7 t ADT: 2,759

L 20

Over: PIGEON CREEK

076430612, Pottawattamie, IA

Built 1977 Load: 32.7 t ADT: 2,430

OLD LINCOLN HWY

Over: HONEY CREEK

077443503, Pottawattamie, IA

Built 1989 Load: 32.7 t ADT: 1,175

RAILROAD HWY

Over: MOSQUITO CREEK

075431106, Pottawattamie, IA

Built 1963 Load: 32.7 t ADT: 2,071

FRONT ST

Over: MOSQUITO CREEK

000000000, Pottawattamie, IA

Built 1963 Load: 32.7 t ADT: 2,195

FM

Over: DRAINAGE

074402003, Pottawattamie, IA

Built 1961 Load: 32.7 t ADT: 417

MCPHERSON AVE

Over: STREAM

075422007, Pottawattamie, IA

Built 1968 Load: 32.7 t ADT: 240

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 6, 2026