Cass County, IA

237 public highway bridges

Cass County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Cass County, Iowa contains 237 public highway bridges. Roughly 22.4% are rated “Good,” 36.3% “Fair,” and 39.7% “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.

237

Total Bridges

22.4%

Good

36.3%

Fair

39.7%

Poor Condition

Condition Distribution

Good

22.4% (53)

Fair

36.3% (86)

Poor

39.7% (94)

All Bridges (237)

Sort:

YANKTON RD

Over: STALE BRANCH

074343301, Cass, IA

Built 2017 Load: 32.4 t ADT: 30

G53 TUCSON RD

Over: BR W NODAWAY RIVER

074350901, Cass, IA

Built 2018 Load: 32.4 t ADT: 60

560TH ST

Over: WATERWAY

0743704047, Cass, IA

Built 2015 Load: 32.4 t ADT: 269

740TH ST

Over: NODAWAY RIVER

074343302, Cass, IA

Built 2017 Load: 32.4 t ADT: 72

JACKSON RD

Over: SMALL STREAM

076361303, Cass, IA

Built 2015 Load: 32.4 t ADT: 110

LANSING RD

Over: WATERWAY

076373401, Cass, IA

Built 2018 Load: 32.4 t ADT: 120

LANSING RD

Over: WATERWAY

076373502, Cass, IA

Built 2013 Load: 32.4 t ADT: 120

AKRON RD

Over: WATERWAY

077340201, Cass, IA

Built 2017 Load: 32.4 t ADT: 35

G16 BOSTON RD

Over: SMALL CREEK

077350701, Cass, IA

Built 2021 Load: 32.4 t ADT: 131

G 30 WHITE POLE RD

Over: SMALL STREAM

077342203, Cass, IA

Built 1993 Load: 32.7 t ADT: 1,564

FM - JACKSON

Over: CREEK

076342101, Cass, IA

Built 1999 Load: 32.7 t ADT: 131

JACKSON ST

Over: STREAM

075352702, Cass, IA

Built 2007 Load: 32.7 t ADT: 481

LAKE ANITA PARK

Over: STREAM

0.2 MI. W OF JCT. IA 148, Cass, IA

Built 1966 Load: 32.7 t

LOCAL - TROY

Over: SMALL STREAM

074370703, Cass, IA

Built 1986 Load: 33.3 t ADT: 51

LOCAL - 770TH

Over: WATERWAY

077341306, Cass, IA

Built 1985 Load: 33.3 t ADT: 26

G43 NEWPORT RD

Over: WEST NODAWAY CREEK

075341201, Cass, IA

Built 2019 Load: 34.7 t ADT: 29

LOCAL - PELLA

Over: WATERWAY

075342101, Cass, IA

Built 2007 Load: 35.3 t ADT: 15

LOCAL - QUIMBY

Over: NISHNABOTNA RIVER

075373003, Cass, IA

Built 2007 Load: 35.3 t ADT: 100

N28 690TH ST

Over: WHISTLERS BRANCH

074350302, Cass, IA

Built 2016 Load: 36.3 t ADT: 190

FM

Over: TROUBLESOME CREEK

077353007, Cass, IA

Built 2005 Load: 36.6 t ADT: 30

LOCAL

Over: TROUBLESOME CREEK

077353103, Cass, IA

Built 2004 Load: 36.6 t ADT: 15

FM - 710TH

Over: CROOKED CREEK

077351404, Cass, IA

Built 1988 Load: 36.8 t ADT: 5

LOCAL - MEMPHIS

Over: WATERWAY

075340601, Cass, IA

Built 1991 Load: 37.2 t ADT: 21

LOCAL/GRT RIVER

Over: NISHNABOTNA RIVER

077362704, Cass, IA

Built 1991 Load: 37.2 t ADT: 30

INDEPENDENCE RD

Over: INDIAN RIVER

076371701, Cass, IA

Built 2000 Load: 37.6 t ADT: 35

LOCAL

Over: INDIAN CREEK

077371801, Cass, IA

Built 2004 Load: 37.6 t ADT: 40

LOCAL - 665TH

Over: TURKEY CREEK

076350712, Cass, IA

Built 1991 Load: 37.7 t ADT: 62

LOCAL - JASPER

Over: TURKEY CREEK

076362203, Cass, IA

Built 1988 Load: 37.7 t ADT: 91

LOCAL - NSHNA V

Over: NISHNABOTNA RIVER

075371003, Cass, IA

Built 1992 Load: 39.5 t ADT: 82

FM - LANSING

Over: WATERWAY

076363101, Cass, IA

Built 1997 Load: 40.1 t ADT: 34

WB I-80

Over: TROUBLESOME CREEK

4.5 MI. E OF US 71, Cass, IA

Built 2003 Load: 40.5 t ADT: 11,500

570TH ST

Over: SMALL CREEK

077371502, Cass, IA

Built 2014 Load: 42.1 t ADT: 51

VICTORIA RD

Over: SEVEN MILE CREEK

074362001, Cass, IA

Built 2012 Load: 43.7 t ADT: 35

N16 OLIVE ST

Over: BRANCH OF BUCK CREEK

077360902, Cass, IA

Built 2021 Load: 43.7 t ADT: 1,524

G16 BOSTON RD

Over: BRANCH OF BUCK CREEK

077360901, Cass, IA

Built 2022 Load: 44.7 t ADT: 89

LOCAL - QUINCY

Over: CREEK

075362801, Cass, IA

Built 2003 Load: 48.2 t ADT: 15

N16 610TH ST

Over: BEAR BRANCH OF TURKEY CR

075360806, Cass, IA

Built 2022 Load: 48.3 t ADT: 50

620TH ST

Over: TURKEY CREEK

076363302, Cass, IA

Built 2012 Load: 48.6 t ADT: 72

IA 83

Over: DRAINAGE DITCH

0.6 MI. E OF S.R. N28, Cass, IA

Built 1987 Load: 51.0 t ADT: 2,120

FM - LEWIS

Over: WATERWAY

075371504, Cass, IA

Built 1998 Load: 51.6 t ADT: 358

JACKSON RD

Over: TURKEY CREEK

076361406, Cass, IA

Built 2008 Load: 52.9 t ADT: 139

INDIAN CREEK ST

Over: TRIB TO INDIAN CREEK

075370502, Cass, IA

Built 2021 Load: 60.6 t ADT: 71

FAIRVIEW ROAD

Over: SMALL CREEK

077353501, Cass, IA

Built 2022 Load: 72.9 t ADT: 46

LOCAL - 680TH

Over: W NODAWAY RIVER

074351604, Cass, IA

Built 1970 ADT: 62

LOCAL - WICHITA

Over: THREE MILE CREEK

074362603, Cass, IA

Built 1972 ADT: 30

LOCAL - 620TH

Over: WATERWAY

074363302, Cass, IA

Built 1977 ADT: 15

LOCAL - 740TH

Over: WATERWAY

075341602, Cass, IA

Built 1985 ADT: 11

LOCAL - QUINCY

Over: WEST NODAWAY RIVER

075342603, Cass, IA

Built 1982 ADT: 41

FM - 710TH

Over: WATERWAY

076351302, Cass, IA

Built 1955 ADT: 26

LOCAL - 675TH

Over: CREEK

076351704, Cass, IA

Built 1961 ADT: 5

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

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Compiled by PlainBridges, Independent data publisher

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.