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 - NSHNA V

Poor

Over: INDIAN CREEK

075370803, Cass, IA

Built 1920 Load: 13.2 t ADT: 26

LOCAL - CHICAGO

Poor

Over: CREEK

077371501, Cass, IA

Built 1977 Load: 13.7 t ADT: 15

FM - 710TH

Poor

Over: WATERWAY

076350106, Cass, IA

Built 1955 Load: 14.0 t ADT: 50

LOCAL - UPLAND

Poor

Over: SEVEN MILE CREEK

074361701, Cass, IA

Built 1976 Load: 14.4 t ADT: 15

LOCAL - HAMBURG

Poor

Over: TURKEY CREEK

076350903, Cass, IA

Built 1974 Load: 14.5 t ADT: 62

LOCAL - JASPER

Poor

Over: NISHNABOTNA RIVER

076372303, Cass, IA

Built 1959 Load: 14.6 t ADT: 46

LOCAL - 640TH

Poor

Over: CREEK

077363508, Cass, IA

Built 1977 Load: 15.0 t ADT: 15

LOCAL - 680TH

Poor

Over: WATERWAY

076352104, Cass, IA

Built 1976 Load: 15.1 t ADT: 11

LOCAL - WICHITA

Poor

Over: SEVEN MILE CREEK

074362901, Cass, IA

Built 1978 Load: 15.2 t ADT: 11

LOCAL - QUEBEC

Poor

Over: SEVEN MILE CREEK

075352903, Cass, IA

Built 1981 Load: 15.6 t ADT: 26

LOCAL/ROCKPORT

Poor

Over: WATERWAY

075343203, Cass, IA

Built 1900 Load: 15.9 t ADT: 89

FM - LANSING

Poor

Over: WATERWAY

076363401, Cass, IA

Built 1900 Load: 17.0 t ADT: 379

LOCAL - UPLAND

Poor

Over: WATERWAY

074371603, Cass, IA

Built 1983 Load: 17.1 t ADT: 26

FM - 660TH

Poor

Over: LONE TREE CREEK

075350602, Cass, IA

Built 1900 Load: 17.1 t ADT: 29

LOCAL - 680TH

Poor

Over: SEVEN MILE CREEK

075352102, Cass, IA

Built 1979 Load: 17.1 t ADT: 15

LOCAL/BUCK CRK

Poor

Over: WATERWAY

077362002, Cass, IA

Built 1967 Load: 17.1 t ADT: 41

FM - BOSTON

Poor

Over: NISHNABOTNA RIVER

077361205, Cass, IA

Built 1951 Load: 17.5 t ADT: 131

FM - YANKTON

Poor

Over: NODAWAY RIVER

074353101, Cass, IA

Built 1949 Load: 17.6 t ADT: 34

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

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

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: 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

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

Read our methodology — how this data is sourced, computed, and verified.

Related

Browse all → | Rankings →
Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial