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)

LOCAL - 540TH

Poor

Over: LONE TREE BRANCH

074371902, Cass, IA

Built 1987 Load: 17.8 t ADT: 50

LOCAL - PELLA

Poor

Over: FOX CREEK

075362103, Cass, IA

Built 1987 Load: 17.8 t ADT: 21

LOCAL - 640TH

Poor

Over: LONE TREE BRANCH

076363504, Cass, IA

Built 1987 Load: 17.8 t ADT: 11

LOCAL - UPLAND

Poor

Over: WHISTLERS BRANCH

074351601, Cass, IA

Built 1983 Load: 17.9 t ADT: 5

LOCAL - 765TH

Poor

Over: WATERWAY

076341104, Cass, IA

Built 1900 Load: 18.1 t ADT: 35

LOCAL - 665TH

Poor

Over: JIM BRANCH

076351906, Cass, IA

Built 1978 Load: 18.3 t ADT: 41

FM - 690TH

Poor

Over: TROUBLESOME CREEK

077351502, Cass, IA

Built 1960 Load: 18.5 t ADT: 210

LOCAL - 760TH

Poor

Over: WEST NODAWAY CREEK

075343504, Cass, IA

Built 1988 Load: 18.9 t ADT: 11

LOCAL - 560TH

Poor

Over: WATERWAY

074371602, Cass, IA

Built 1900 Load: 20.0 t ADT: 15

LOCAL - 710TH

Poor

Over: W NODAWAY

074351206, Cass, IA

Built 1977 Load: 20.2 t ADT: 11

FM - 710TH

Poor

Over: WATERWAY

076352504, Cass, IA

Built 1958 Load: 21.3 t ADT: 20

LOCAL - 730TH

Poor

Over: WATERWAY

077343204, Cass, IA

Built 1958 Load: 21.3 t ADT: 30

LOCAL - AKRON

Poor

Over: SMALL STREAM

077340401, Cass, IA

Built 1987 Load: 21.9 t ADT: 11

LOCAL

Poor

Over: CREEK

076363604, Cass, IA

Built 1997 Load: 22.7 t ADT: 21

LOCAL - 770TH

Poor

Over: SMALL

075343602, Cass, IA

Built 1980 Load: 22.9 t ADT: 91

LOCAL - MEMPHIS

Poor

Over: SMALL STREAM

075370105, Cass, IA

Built 1978 Load: 23.1 t ADT: 5

LOCAL - YANKTON

Poor

Over: WATERWAY

074343101, Cass, IA

Built 1951 Load: 23.5 t ADT: 46

LOCAL/VICTORIA

Poor

Over: SMALL

074362101, Cass, IA

Built 1959 Load: 24.3 t ADT: 41

FM - YANKTON

Poor

Over: WATERWAY

074363301, Cass, IA

Built 1958 Load: 24.3 t ADT: 50

LOCAL/RICHLAND

Poor

Over: WATERWAY

075363301, Cass, IA

Built 1959 Load: 24.3 t ADT: 40

LOCAL/RICHLAND

Poor

Over: WATERWAY

075363301, Cass, IA

Built 1959 Load: 24.3 t ADT: 40

LOCAL - NSHNA V

Poor

Over: SMALL STREAM

075370903, Cass, IA

Built 1986 Load: 24.5 t ADT: 62

LOCAL - 560TH

Poor

Over: CREEK

075372802, Cass, IA

Built 1983 Load: 24.5 t ADT: 269

LOCAL - 665TH

Poor

Over: CREEK

076351804, Cass, IA

Built 1983 Load: 24.5 t ADT: 51

LOCAL - 635TH

Poor

Over: TROUBLESOME CREEK

076360301, Cass, IA

Built 1979 Load: 24.5 t ADT: 30

LOCAL/KEYSTONE

Poor

Over: CREEK

076342801, Cass, IA

Built 1981 Load: 24.8 t ADT: 26

FM - 690TH

Poor

Over: NODAWAY RIVER

074351502, Cass, IA

Built 1970 Load: 25.7 t ADT: 190

FM - 690TH

Poor

Over: WATERWAY

076350304, Cass, IA

Built 1963 Load: 25.7 t ADT: 450

LOCAL

Poor

Over: TURKEY CREEK

077342906, Cass, IA

Built 1981 Load: 25.8 t ADT: 21

FM - OLIVE

Poor

Over: NISHNABOTNA RIVER

077363302, Cass, IA

Built 1961 Load: 27.2 t ADT: 1,524

FM - OXFORD

Poor

Over: SEVEN MILE CREEK

075351501, Cass, IA

Built 1974 Load: 30.2 t ADT: 139

QUINCY RD

Poor

Over: WATERWAY

075352701, Cass, IA

Built 1975 Load: 32.7 t ADT: 91

LOCAL - WICHITA

Poor

Over: NODAWAY RIVER

074352903, Cass, IA

Built 1988 Load: 32.8 t ADT: 26

FM - 690TH

Poor

Over: SEVENMILE CREEK

075351502, Cass, IA

Built 1971 Load: 32.8 t ADT: 468

FM - 690TH

Poor

Over: JIM CREEK

076352204, Cass, IA

Built 1971 Load: 33.0 t ADT: 329

LOCAL - 580TH

Poor

Over: LITTLE CAMP CREEK

077371102, Cass, IA

Built 1981 Load: 35.0 t ADT: 5

LOCAL/730TH LN

Poor

Over: WATERWAY

077340504, Cass, IA

Built 1995 Load: 39.7 t 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

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.