Sac County, IA

188 public highway bridges

Sac County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Sac County, Iowa contains 188 public highway bridges. Roughly 34% are rated “Good,” 31.9% “Fair,” and 31.9% “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.

188
Total Bridges
34%
Good
31.9%
Fair
31.9%
Poor Condition

Condition Distribution

Good
34% (64)
Fair
31.9% (60)
Poor
31.9% (60)

All Bridges (188)

IA 175

Unknown

Over: HIGH ST

1.9 mi. E of SR M64, Sac, IA

Built 1934 ADT: 500

US 20 EB

Unknown

Over: US 71 SB & IA 471

At jct. US 71, Sac, IA

Built 2012 ADT: 1,535

230TH ST

Unknown

Over: US 20

1.4 mi. W of jct. SR M54, Sac, IA

Built 2012 ADT: 6,600

US 20 WB

Unknown

Over: US 71 NB

US 20 over US 71, Sac, IA

Built 2012 ADT: 510

LOCAL

Fair

Over: SMALL STREAM

089372202, Sac, IA

Built 1917 Load: 9.4 t ADT: 26

FM

Fair

Over: STREAM

086363501, Sac, IA

Built 1923 Load: 9.6 t ADT: 15

LOCAL

Fair

Over: WHEELER CREEK

086373002, Sac, IA

Built 1932 Load: 11.1 t ADT: 15

LOCAL

Fair

Over: STREAM

086360711, Sac, IA

Built 1957 Load: 12.4 t ADT: 60

IA 175

Fair

Over: STREAM

0.1 mi. W of jct. SR M64, Sac, IA

Built 1937 Load: 12.6 t ADT: 1,930

FM

Fair

Over: DD #31

087353403, Sac, IA

Built 1919 Load: 13.1 t ADT: 34

FM

Fair

Over: INDIAN CREEK

087360701, Sac, IA

Built 1917 Load: 13.5 t ADT: 20

FM

Fair

Over: PORTER CREEK

086383501, Sac, IA

Built 1953 Load: 14.1 t ADT: 26

LOCAL

Fair

Over: BOYER CREEK

089371102, Sac, IA

Built 1958 Load: 14.1 t ADT: 34

LOCAL

Fair

Over: STREAM

086363402, Sac, IA

Built 1934 Load: 14.8 t ADT: 40

LOCAL ROAD

Fair

Over: SMALL STREAM

086380101, Sac, IA

Built 1919 Load: 15.2 t ADT: 26

FM

Fair

Over: SMALL STREAM

086370802, Sac, IA

Built 1930 Load: 15.8 t ADT: 50

LOCAL

Fair

Over: STREAM

088372801, Sac, IA

Built 1960 Load: 17.2 t ADT: 40

LOCAL

Fair

Over: SMALL STREAM

086373402, Sac, IA

Built 1922 Load: 17.6 t ADT: 5

IA 471

Fair

Over: DRAINAGE DITCH

0.2 mi. N of SR D-36, Sac, IA

Built 1933 Load: 18.1 t ADT: 1,320

IA 39

Fair

Over: NATURAL STREAM

2.6 mi. S of SR D59, Sac, IA

Built 1951 Load: 18.1 t ADT: 1,540

FM

Fair

Over: SMALL CREEK

088370802, Sac, IA

Built 1919 Load: 19.5 t ADT: 26

FM

Fair

Over: SMALL STREAM

086373303, Sac, IA

Built 1984 Load: 21.2 t ADT: 60

FM

Fair

Over: PORTER CREEK

086383504, Sac, IA

Built 1960 Load: 21.5 t ADT: 100

LOCAL

Fair

Over: SMALL STREAM

088380602, Sac, IA

Built 1919 Load: 21.9 t ADT: 26

LOCAL

Fair

Over: RACCOON RIVER

089353103, Sac, IA

Built 1975 Load: 22.3 t ADT: 26

LOCAL ROAD

Fair

Over: BOYER RIVER

086370201, Sac, IA

Built 1969 Load: 22.6 t ADT: 30

LOCAL

Fair

Over: SMALL STREAM

087380902, Sac, IA

Built 1986 Load: 22.7 t ADT: 15

LOCAL

Fair

Over: RACCOON RIVER

088361001, Sac, IA

Built 1985 Load: 22.7 t ADT: 20

FM

Fair

Over: RACOON RIVER

088361404, Sac, IA

Built 1970 Load: 22.7 t ADT: 319

AHRENS ST

Fair

Over: RACCOON RIVER

088362500, Sac, IA

Built 1982 Load: 25.1 t ADT: 354

FM

Fair

Over: LIME CREEK

086363301, Sac, IA

Built 1922 Load: 26.3 t ADT: 50

FM

Fair

Over: BOYER RIVER

088372101, Sac, IA

Built 1967 Load: 26.3 t ADT: 20

D 36 (255TH ST)

Fair

Over: DRAINAGE DITCH

088372403, Sac, IA

Built 1933 Load: 26.3 t ADT: 679

LOCAL

Fair

Over: STREAM

086382001, Sac, IA

Built 1973 Load: 27.3 t ADT: 11

LOCAL

Fair

Over: BOYER RIVER

089371002, Sac, IA

Built 1978 Load: 29.4 t ADT: 5

LOCAL

Fair

Over: SMALL STREAM

087362402, Sac, IA

Built 1985 Load: 29.8 t ADT: 20

FM

Fair

Over: NO NAME CREEK

089380502, Sac, IA

Built 1971 Load: 30.0 t ADT: 450

FM

Fair

Over: HALFWAY CREEK

089382902, Sac, IA

Built 1973 Load: 30.0 t ADT: 319

LOCAL

Fair

Over: STREAM

086372306, Sac, IA

Built 1973 Load: 30.6 t ADT: 30

FM

Fair

Over: RACCOON RIVER

087353201, Sac, IA

Built 1974 Load: 30.6 t ADT: 150

LOCAL

Fair

Over: CEDAR CREEK

088362508, Sac, IA

Built 1987 Load: 30.6 t ADT: 230

LOCAL

Fair

Over: RACCOON RIVER

086350404, Sac, IA

Built 1976 Load: 30.8 t ADT: 40

FM

Fair

Over: DD #57

086361201, Sac, IA

Built 1975 Load: 30.8 t ADT: 210

LOCAL

Fair

Over: BOYER RIVER

089370502, Sac, IA

Built 1981 Load: 31.8 t ADT: 15

IA 471

Fair

Over: BOYER RIVER

3.5 mi. N of Jct IA 175, Sac, IA

Built 1984 Load: 32.2 t ADT: 1,070

LOCAL

Fair

Over: NO NAME CREEK

087370901, Sac, IA

Built 1988 Load: 32.7 t ADT: 34

LOCAL

Fair

Over: ELK CREEK

088382802, Sac, IA

Built 1984 Load: 32.7 t ADT: 30

FM

Fair

Over: DD 81

089352101, Sac, IA

Built 1988 Load: 32.7 t ADT: 270

LOCAL

Fair

Over: STREAM

089373402, Sac, IA

Built 1985 Load: 32.7 t ADT: 26

FM

Fair

Over: HALFWAY CREEK

089382801, Sac, IA

Built 1991 Load: 32.7 t ADT: 469

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.