Sac County, IA

188 public highway bridges

Sac County Bridge Snapshot

Sac County, Iowa contains 188 public highway bridges in the FHWA National Bridge Inventory. Roughly 34% are rated “Good,” 31.9% “Fair,” 31.9% “Poor,” and 31.9% 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.

188
Total Bridges
34%
Good
31.9%
Poor
31.9%
Structurally Deficient

Condition Distribution

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

All Bridges (188)

LOCAL

Fair

Over: SMALL STREAM

087381601, Sac, IA

Built 1985 Load: 32.7 t ADT: 15

LOCAL

Fair

Over: SMALL STREAM

086372501, Sac, IA

Built 1971 Load: 33.0 t ADT: 20

FM

Fair

Over: SMALL

087353301, Sac, IA

Built 1979 Load: 33.0 t ADT: 71

FM

Fair

Over: SMALL

088370504, Sac, IA

Built 1978 Load: 33.0 t ADT: 30

FM

Fair

Over: RACOON RIVER

089362401, Sac, IA

Built 1972 Load: 34.1 t ADT: 290

LOCAL

Fair

Over: SMALL STREAM

087361801, Sac, IA

Built 1985 Load: 34.7 t ADT: 15

PK 607(BLKHAWK)

Fair

Over: BLACK HAWK LAKE

Black Hawk Lake St. Park, Sac, IA

Built 1989 Load: 34.7 t

LOCAL

Fair

Over: BOYER RIVER

087370401, Sac, IA

Built 1974 Load: 36.3 t ADT: 15

LOCAL

Fair

Over: BOYER RIVER

087372701, Sac, IA

Built 1979 Load: 36.3 t ADT: 15

FM

Fair

Over: BOYER RIVER

088370801, Sac, IA

Built 1975 Load: 36.3 t ADT: 100

FM

Fair

Over: BOYER RIVER

089372602, Sac, IA

Built 1976 Load: 36.3 t ADT: 26

FM

Fair

Over: BOYER RIVER

086371403, Sac, IA

Built 1950 Load: 36.8 t ADT: 489

FM

Fair

Over: INLET BLACKHAWK LK

086360903, Sac, IA

Built 1989 Load: 37.1 t ADT: 330

FM

Fair

Over: RACCOON RIVER

086351410, Sac, IA

Built 1985 Load: 44.0 t ADT: 159

LOCAL

Good

Over: DD #25

087352101, Sac, IA

Built 2001 Load: 13.5 t ADT: 30

IA 471

Good

Over: BRANCH BOYER RIVER

0.7 mi. N of jct. IA 175, Sac, IA

Built 1984 Load: 20.6 t ADT: 1,070

LOCAL

Good

Over: STREAM

089383002, Sac, IA

Built 2002 Load: 28.2 t ADT: 11

US 20

Good

Over: UNNAMED STREAM

3.7 MI. W OF JCT. US 71, Sac, IA

Built 2017 Load: 32.4 t ADT: 4,850

US 71

Good

Over: CEDAR CREEK

0.1 MI. S OF CO. RD. D36, Sac, IA

Built 2015 Load: 32.4 t ADT: 1,720

320TH ST

Good

Over: INDIAN CREEK

087362701, Sac, IA

Built 2021 Load: 32.4 t ADT: 40

QUINCY AVE

Good

Over: INDIAN CREEK

087362702, Sac, IA

Built 2017 Load: 32.4 t ADT: 139

IRA AVENUE

Good

Over: STREAM

087370502, Sac, IA

Built 2022 Load: 32.4 t ADT: 40

300TH ST

Good

Over: SMALL STREAM

087381701, Sac, IA

Built 2019 Load: 32.4 t ADT: 30

M43 GARD AVE

Good

Over: STREAM

089372804, Sac, IA

Built 2017 Load: 32.4 t ADT: 559

M43 GARD AVE

Good

Over: STREAM

089372802, Sac, IA

Built 2017 Load: 32.4 t ADT: 559

US 20 WB US 71 NB

Good

Over: NORTH RACCOON RIVER

1.0 mi. W of Jct. SR M54, Sac, IA

Built 2012 Load: 32.4 t ADT: 3,300

US 20 WB

Good

Over: CEDAR CREEK

2.5 mi. E of SR N14, Sac, IA

Built 2012 Load: 32.4 t ADT: 2,950

US 20 WB

Good

Over: BOYER RIVER

1.9 MILES WEST OF US 71, Sac, IA

Built 2017 Load: 32.4 t ADT: 2,425

BUCHANAN AVE

Good

Over: STREAM

087381902, Sac, IA

Built 2000 Load: 32.6 t ADT: 20

LOCAL

Good

Over: LIME CREEK

086361702, Sac, IA

Built 1989 Load: 32.7 t ADT: 50

FM

Good

Over: INLET CREEK

086362209, Sac, IA

Built 1987 Load: 32.7 t ADT: 638

FM

Good

Over: DD #57

086362401, Sac, IA

Built 2007 Load: 32.7 t ADT: 628

FM

Good

Over: LIME CREEK

086362802, Sac, IA

Built 1999 Load: 32.7 t ADT: 529

FM

Good

Over: SMALL CREEK

086363002, Sac, IA

Built 2000 Load: 32.7 t ADT: 748

LOCAL

Good

Over: SMALL STREAM

086370401, Sac, IA

Built 1994 Load: 32.7 t ADT: 30

LOCAL ROAD

Good

Over: SMALL STREAM

086370902, Sac, IA

Built 2001 Load: 32.7 t ADT: 5

380TH ST

Good

Over: SMALL STREAM

086382703, Sac, IA

Built 2012 Load: 32.7 t ADT: 11

LOCAL

Good

Over: WALL LAKE OUTLET

087362601, Sac, IA

Built 1993 Load: 32.7 t ADT: 30

LOCAL

Good

Over: STREAM

087372801, Sac, IA

Built 1997 Load: 32.7 t ADT: 20

LOCAL

Good

Over: STREAM

087381002, Sac, IA

Built 1994 Load: 32.7 t ADT: 20

FM

Good

Over: SMALL CREEK

087381901, Sac, IA

Built 1993 Load: 32.7 t ADT: 20

FM

Good

Over: ODEBOLT CREEK

087382304, Sac, IA

Built 1984 Load: 32.7 t ADT: 1,228

LOCAL

Good

Over: SMALL STREAM

087383602, Sac, IA

Built 1999 Load: 32.7 t ADT: 26

LOCAL

Good

Over: SMALL STREAM

088360802, Sac, IA

Built 1999 Load: 32.7 t ADT: 11

LOCAL

Good

Over: INDIAN CREEK

088372501, Sac, IA

Built 1999 Load: 32.7 t ADT: 20

IRA AVE

Good

Over: STREAM

088373202, Sac, IA

Built 2020 Load: 32.7 t ADT: 11

FM

Good

Over: SO SILVER CREEK

088381702, Sac, IA

Built 1999 Load: 32.7 t ADT: 170

DEAN AVE

Good

Over: SMALL STREAM

088383302, Sac, IA

Built 2017 Load: 32.7 t ADT: 15

ESTHER AVE

Good

Over: SMALL STREAM

088383402, Sac, IA

Built 2019 Load: 32.7 t ADT: 11

FM

Good

Over: DD 38 (BUCK RUN CREEK)

089361002, Sac, IA

Built 2008 Load: 32.7 t ADT: 509

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