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:

FM-MAGNOLIA RD

Over: KEG CREEK

076411901, Pottawattamie, IA

Built 1960 Load: 19.0 t ADT: 477

FM

Over: GRAYBILL CREEK

074402501, Pottawattamie, IA

Built 1956 Load: 19.4 t ADT: 100

EAGLE LANE

Over: LITTLE SILVER CREEK

075422404, Pottawattamie, IA

Built 1990 Load: 19.9 t ADT: 5

YORK ROAD

Over: KEG CREEK

077410201, Pottawattamie, IA

Built 1977 Load: 19.9 t ADT: 34

LOCAL

Over: MINOR DRAINAGE

076382101, Pottawattamie, IA

Built 1973 Load: 20.0 t ADT: 20

240TH STREET

Over: HENSCHALL CREEK

076420702, Pottawattamie, IA

Built 1977 Load: 20.6 t ADT: 34

320TH STREET

Over: STREAM

076410904, Pottawattamie, IA

Built 1976 Load: 21.0 t ADT: 20

SUMAC ROAD

Over: MIDDLE SILVER CREEK

077403101, Pottawattamie, IA

Built 1979 Load: 21.0 t ADT: 50

IA 92

Over: WALNUT CREEK

0.9 MI. E OF SR M-47, Pottawattamie, IA

Built 1938 Load: 21.3 t ADT: 1,180

ASPEN ROAD

Over: STREAM

074413403, Pottawattamie, IA

Built 1998 Load: 21.5 t ADT: 5

390TH STREET

Over: STREAM

076401002, Pottawattamie, IA

Built 1951 Load: 21.5 t ADT: 5

215TH STREET

Over: STREAM

077433406, Pottawattamie, IA

Built 1995 Load: 21.6 t ADT: 26

WACO LANE

Over: NEOLA CREEK

077421204, Pottawattamie, IA

Built 1989 Load: 21.9 t ADT: 5

SUMAC ROAD

Over: STREAM

077423503, Pottawattamie, IA

Built 1973 Load: 21.9 t ADT: 71

350TH STREET

Over: SILVER CREEK

076412402, Pottawattamie, IA

Built 1996 Load: 22.0 t ADT: 5

FM-PINOAK ROAD

Over: WALNUT CREEK

076381001, Pottawattamie, IA

Built 1956 Load: 22.1 t ADT: 278

FM

Over: W NISHNABOTNA

074402110, Pottawattamie, IA

Built 1960 Load: 22.5 t ADT: 417

320TH STREET

Over: LITTLE SILVER CREEK

076412802, Pottawattamie, IA

Built 1940 Load: 22.5 t ADT: 15

2ND STREET

Over: INDIAN CREEK

000000000, Pottawattamie, IA

Built 1972 Load: 22.5 t ADT: 2,806

FM-COLDWATER AV

Over: PIGEON CREEK

076430506, Pottawattamie, IA

Built 1966 Load: 22.6 t ADT: 638

IA 92

Over: GRAYBILL CREEK

1.2 MI. E OF JCT. U.S. 59, Pottawattamie, IA

Built 1957 Load: 22.8 t ADT: 1,180

I 880 EB

Over: BNSF RR

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

Built 1966 Load: 23.6 t ADT: 2,850

IDELWOOD ROAD

Over: STREAM

075390103, Pottawattamie, IA

Built 1998 Load: 23.6 t ADT: 20

FM-JUNIPER ROAD

Over: LITTLE WALNUT CREEK

076383301, Pottawattamie, IA

Built 1954 Load: 23.9 t ADT: 20

SYCAMORE ROAD

Over: SILVER CREEK

077403001, Pottawattamie, IA

Built 1940 Load: 23.9 t ADT: 15

ROSEWOOD ROAD

Over: KEG CREEK

076410401, Pottawattamie, IA

Built 1976 Load: 24.0 t ADT: 20

FM-SYCAMORE RD

Over: PIGEON CREEK

077423001, Pottawattamie, IA

Built 1958 Load: 24.0 t ADT: 45

FM

Over: PONY CREEK

074431503, Pottawattamie, IA

Built 1966 Load: 24.2 t ADT: 1,733

14TH AVE

Over: INDIAN CREEK

000000000, Pottawattamie, IA

Built 1935 Load: 24.2 t ADT: 546

7TH STREET

Over: INDIAN CREEK

7th St over Indian Creek, Pottawattamie, IA

Built 2002 Load: 24.5 t ADT: 1,328

US 59

Over: E BR W NISHNABOTNA RVR

1.0 mi. S of Jct. IA 83, Pottawattamie, IA

Built 1929 Load: 24.9 t ADT: 2,680

LOCAL

Over: CREEK

000000000, Pottawattamie, IA

Built 2009 Load: 24.9 t ADT: 50

238TH STREET

Over: STREAM

075430104, Pottawattamie, IA

Built 2000 Load: 25.1 t ADT: 40

CHESTNUT ROAD

Over: FARM CREEK

074391401, Pottawattamie, IA

Built 2004 Load: 25.5 t ADT: 5

DOGWOOD ROAD

Over: MIDDLE SILVER CREEK

075413101, Pottawattamie, IA

Built 1979 Load: 25.5 t ADT: 71

FIELD ENTRANCE

Over: DRAINAGE

074433304, Pottawattamie, IA

Built 1997 Load: 25.6 t ADT: 10

WHIPPERWILL RD

Over: STREAM

077420901, Pottawattamie, IA

Built 2003 Load: 26.1 t ADT: 30

HICKORY ROAD

Over: STREAM

075391301, Pottawattamie, IA

Built 1950 Load: 26.2 t ADT: 29

290TH STREET

Over: SILVER CREEK

074421204, Pottawattamie, IA

Built 1964 Load: 26.3 t ADT: 757

380TH STREET

Over: SILVER CREEK

076402102, Pottawattamie, IA

Built 1969 Load: 26.3 t ADT: 319

MULBERRY LANE

Over: STREAM

076422106, Pottawattamie, IA

Built 2001 Load: 26.3 t ADT: 27

SB I-29

Over: OVER BNSF RR

1.3 MI. S OF JCT. 92, Pottawattamie, IA

Built 1968 Load: 26.4 t ADT: 12,100

500TH STREET

Over: OVER IAIS RR

076380402, Pottawattamie, IA

Built 1950 Load: 26.5 t ADT: 40

435TH STREET

Over: STREAM

076391708, Pottawattamie, IA

Built 1995 Load: 26.7 t ADT: 40

PIONEER TRAIL

Over: SILVER CREEK

074412801, Pottawattamie, IA

Built 1948 Load: 26.8 t ADT: 71

FM-430TH STREET

Over: STREAM

077393202, Pottawattamie, IA

Built 1972 Load: 26.8 t ADT: 60

FM

Over: JORDAN CREEK

074393003, Pottawattamie, IA

Built 1957 Load: 27.1 t ADT: 100

MAGNOLIA ROAD

Over: STREAM

076401903, Pottawattamie, IA

Built 1953 Load: 27.2 t ADT: 11

US 59

Over: STREAM

0.6 MI. N OF S JCT SR G30, Pottawattamie, IA

Built 1952 Load: 27.3 t ADT: 1,980

FM-LOMBARDY RD

Over: SILVER CREEK

076403001, Pottawattamie, IA

Built 1981 Load: 27.3 t ADT: 50

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

Related

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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