Cass County, IA

237 public highway bridges

Cass County Bridge Snapshot

Cass County, Iowa contains 237 public highway bridges in the FHWA National Bridge Inventory. Roughly 22.4% are rated “Good,” 36.3% “Fair,” 39.7% “Poor,” and 39.7% 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.

237
Total Bridges
22.4%
Good
39.7%
Poor
39.7%
Structurally Deficient

Condition Distribution

Good
22.4% (53)
Fair
36.3% (86)
Poor
39.7% (94)
SD
39.7% (94)

All Bridges (237)

LOCAL/730TH LN

Poor

Over: WATERWAY

077340504, Cass, IA

Built 1995 Load: 39.7 t ADT: 5

LOCAL - 680TH

Structurally Deficient

Over: W NODAWAY RIVER

074351604, Cass, IA

Built 1970 ADT: 62

LOCAL - WICHITA

Structurally Deficient

Over: THREE MILE CREEK

074362603, Cass, IA

Built 1972 ADT: 30

LOCAL - 620TH

Structurally Deficient

Over: WATERWAY

074363302, Cass, IA

Built 1977 ADT: 15

LOCAL - 740TH

Structurally Deficient

Over: WATERWAY

075341602, Cass, IA

Built 1985 ADT: 11

LOCAL - QUINCY

Structurally Deficient

Over: WEST NODAWAY RIVER

075342603, Cass, IA

Built 1982 ADT: 41

FM - 710TH

Structurally Deficient

Over: WATERWAY

076351302, Cass, IA

Built 1955 ADT: 26

LOCAL - 675TH

Structurally Deficient

Over: CREEK

076351704, Cass, IA

Built 1961 ADT: 5

FM - 660TH

Structurally Deficient

Over: JIM CREEK

076351902, Cass, IA

Built 1956 ADT: 34

LOCAL

Structurally Deficient

Over: WATERWAY

076371901, Cass, IA

Built 1955 ADT: 26

LOCAL/EASTLAND

Structurally Deficient

Over: BUCK CREEK

077363001, Cass, IA

Built 1974 ADT: 26

LOCAL/BUCK CRK

Structurally Deficient

Over: EAST NISHNABOTNA RIVER

077363206, Cass, IA

Built 1900 ADT: 123

LOCAL/FAIRVIEW

Structurally Deficient

Over: CREEK

077373601, Cass, IA

Built 1959 ADT: 21

LOCAL - 700TH

Structurally Deficient

Over: TRIB TROUBLESOME CREEK

077351402, Cass, IA

Built 1983 Load: 2.7 t ADT: 11

LOCAL - DAYTONA

Structurally Deficient

Over: BUCK CREEK

077361903, Cass, IA

Built 1980 Load: 2.7 t ADT: 35

LOCAL - 570TH

Structurally Deficient

Over: WATERWAY

074371002, Cass, IA

Built 1955 Load: 3.2 t ADT: 30

LOCAL - SEATTLE

Structurally Deficient

Over: WATERWAY

074370605, Cass, IA

Built 1978 Load: 3.7 t ADT: 35

LOCAL - CHICAGO

Structurally Deficient

Over: BUCK CREEK

077361801, Cass, IA

Built 1900 Load: 4.0 t ADT: 30

LOCAL/KEYSTONE

Structurally Deficient

Over: CREEK

076342801, Cass, IA

Built 1900 Load: 5.3 t ADT: 26

LOCAL - 740TH

Structurally Deficient

Over: CREEK

076343302, Cass, IA

Built 1900 Load: 7.2 t ADT: 26

NEWPORT RD

Structurally Deficient

Over: BEAR BRANCH

075360702, Cass, IA

Built 1984 Load: 7.8 t ADT: 15

LOCAL - AKRON

Structurally Deficient

Over: TROUBLESOME CREEK

077350203, Cass, IA

Built 1900 Load: 7.9 t ADT: 5

LOCAL/KEYSTONE

Structurally Deficient

Over: SPRING CREEK

076372701, Cass, IA

Built 1900 Load: 9.6 t ADT: 15

FM - HIGHLAND

Structurally Deficient

Over: INDIAN CREEK

076370801, Cass, IA

Built 1959 Load: 9.8 t ADT: 278

LOCAL - 740TH

Structurally Deficient

Over: WEST NODAWAY RIVER

075343302, Cass, IA

Built 1978 Load: 9.9 t ADT: 51

LOCAL - 700TH

Structurally Deficient

Over: WATERWAY

075352302, Cass, IA

Built 1967 Load: 11.3 t ADT: 46

FM - 730TH

Structurally Deficient

Over: ELM CREEK

074340802, Cass, IA

Built 1956 Load: 11.8 t ADT: 45

LOCAL - 555TH

Structurally Deficient

Over: CAMP CREEK

076370504, Cass, IA

Built 1976 Load: 13.1 t ADT: 21

LOCAL - MEMPHIS

Structurally Deficient

Over: TURKEY CR

075360602, Cass, IA

Built 1900 Load: 13.2 t ADT: 5

AKRON RD

Structurally Deficient

Over: STREAM

077340401, Cass, IA

Built 1978 Load: 15.0 t ADT: 11

LOCAL/NEWPORT

Structurally Deficient

Over: CREEK

075351203, Cass, IA

Built 1959 Load: 15.2 t ADT: 26

LOCAL - 100TH

Structurally Deficient

Over: CREEK

077370601, Cass, IA

Built 1900 Load: 15.8 t ADT: 11

LOCAL - 700TH

Structurally Deficient

Over: TURKEY CREEK

076350204, Cass, IA

Built 1978 Load: 17.6 t ADT: 21

FM - 690TH

Structurally Deficient

Over: TROUBLESOME CREEK

077351502, Cass, IA

Built 1960 Load: 18.5 t ADT: 210

FM - 710TH

Structurally Deficient

Over: WATERWAY

076352504, Cass, IA

Built 1958 Load: 21.3 t ADT: 20

FM - 690TH

Structurally Deficient

Over: NODAWAY RIVER

074351502, Cass, IA

Built 1970 Load: 25.7 t ADT: 190

FM - OXFORD

Structurally Deficient

Over: SEVEN MILE CREEK

075351501, Cass, IA

Built 1974 Load: 30.2 t ADT: 139

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