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:

LOCAL - 760TH

Over: CREEK

076342602, Cass, IA

Built 1983 Load: 25.7 t ADT: 5

LOCAL - HAMBURG

Over: CREEK

076350203, Cass, IA

Built 1988 Load: 25.7 t ADT: 35

LOCAL - HAMPTON

Over: SMALL STREAM

076350707, Cass, IA

Built 1986 Load: 25.7 t ADT: 26

FM - 610TH

Over: TURKEY CREEK

076363204, Cass, IA

Built 1973 Load: 25.7 t ADT: 50

LOCAL - CHICAGO

Over: WATERWAY

077341403, Cass, IA

Built 1985 Load: 25.7 t ADT: 11

FM - 730TH ST

Over: WATERWAY

074340502, Cass, IA

Built 1969 Load: 25.9 t ADT: 79

FM - 610TH

Over: WATERWAY

075362902, Cass, IA

Built 1969 Load: 26.3 t ADT: 15

LOCAL - 540TH

Over: WATERWAY

074370706, Cass, IA

Built 1977 Load: 26.6 t ADT: 50

US 6

Over: TURKEY CREEK

3.7 MI. E OF JCT. IA #48, Cass, IA

Built 1959 Load: 27.1 t ADT: 1,960

FM

Over: WATERWAY

076342201, Cass, IA

Built 1900 Load: 27.1 t ADT: 60

FM - HIGHLAND

Over: BUCK CREEK

076360701, Cass, IA

Built 1983 Load: 29.7 t ADT: 89

LOCAL/NEWPORT

Over: SEVEN MILE CREEK

075351101, Cass, IA

Built 1977 Load: 30.4 t ADT: 26

LOCAL - QUINCY

Over: SEVENMILE CREEK

075352901, Cass, IA

Built 1977 Load: 30.4 t ADT: 30

LOCAL/RICHLAND

Over: SMALL STREAM

075363201, Cass, IA

Built 1974 Load: 30.4 t ADT: 41

LOCAL - 725TH

Over: TURKEY CREEK

077343104, Cass, IA

Built 1973 Load: 30.4 t ADT: 30

FM - BOSTON

Over: BUCK CREEK

077360701, Cass, IA

Built 1974 Load: 30.4 t ADT: 26

LOCAL - TUCSON

Over: WEST NODAWAY RIVER

074340701, Cass, IA

Built 1972 Load: 30.6 t ADT: 35

LOCAL - 720TH

Over: SEVEN MILE CREEK

075340602, Cass, IA

Built 1978 Load: 30.6 t ADT: 30

FM - BOSTON

Over: TROUBLESOME RIVER

077351003, Cass, IA

Built 1977 Load: 31.8 t ADT: 45

LOCAL - 540TH

Over: WATERWAY

074370606, Cass, IA

Built 1991 Load: 32.7 t ADT: 72

LOCAL - QUINCY

Over: STREAM

075342801, Cass, IA

Built 2002 Load: 32.7 t ADT: 30

LOCAL - 720TH

Over: CREEK

076341804, Cass, IA

Built 1997 Load: 32.7 t ADT: 15

LOCAL/658TH LN

Over: CREEK

077360104, Cass, IA

Built 1997 Load: 32.7 t ADT: 15

FM - 690TH

Over: WATERWAY

076351502, Cass, IA

Built 1970 Load: 33.0 t ADT: 450

FM - INDIAN CRK

Over: TRIB INDIAN CREEK

076371904, Cass, IA

Built 1987 Load: 34.1 t ADT: 45

LOCAL - 570TH

Over: CAMP CREEK

077370302, Cass, IA

Built 1988 Load: 35.7 t ADT: 15

FM - YANKTON

Over: CLARKS BRANCH

074373203, Cass, IA

Built 1990 Load: 36.3 t ADT: 60

LOCAL - 720TH

Over: W NODAWAY RIVER

074340702, Cass, IA

Built 1988 Load: 38.2 t ADT: 11

IA 83

Over: CAMP CREEK

0.2 MI W OF Jct. SR M-56, Cass, IA

Built 1991 Load: 38.3 t ADT: 760

PELLA RD

Over: WEST NODAWAY CREEK

075342401, Cass, IA

Built 2016 Load: 38.6 t ADT: 15

LOCAL - 680TH

Over: WATERWAY

074352804, Cass, IA

Built 1985 Load: 39.8 t ADT: 5

OMAHA RD

Over: WEST NODAWAY CREEK

075341303, Cass, IA

Built 2000 Load: 40.7 t ADT: 5

FM - 570TH

Over: SPRING CREEK

076373402, Cass, IA

Built 1980 Load: 42.0 t ADT: 120

IA 83

Over: INDIAN CREEK

1.3 MI. W OF S.R. M56, Cass, IA

Built 1991 Load: 46.5 t ADT: 760

LOCAL

Over: BUCK CREEK

076370107, Cass, IA

Built 2005 Load: 52.9 t ADT: 537

IA 148

Over: SEVEN MILE CREEK

0.9 MI. S OF SR G-35, Cass, IA

Built 1994 Load: 53.3 t ADT: 790

US 71

Over: FOUR MILE CREEK

2.1 MI. N OF N JCT. 92, Cass, IA

Built 1971 Load: 59.5 t ADT: 2,280

LOCAL - WICHITA

Over: SMALL

074362801, Cass, IA

Built 1976 Load: 64.0 t ADT: 62

IA 48

Over: CLARKS BRANCH

1.9 MI. N OF SR H14, Cass, IA

Built 1974 Load: 90.5 t ADT: 1,090

IA 148

Over: STREAM

2.2 mi. S of Jct. SR G-61, Cass, IA

Built 1959 Load: 90.5 t ADT: 770

KINGBIRD AVE

Over: WATERWAY

077350303, Cass, IA

Built 2000 Load: 14.3 t ADT: 30

LOCAL

Over: CREEK

076351604, Cass, IA

Built 2004 Load: 15.4 t ADT: 5

740TH ST

Over: SEVEN MILE CREEK

076343302, Cass, IA

Built 2015 Load: 20.0 t ADT: 26

700TH ST

Over: JIM BRANCH OF TURKEY CR

076352602, Cass, IA

Built 2021 Load: 20.1 t ADT: 11

JASPER RD

Over: SPRING CREEK

076372201, Cass, IA

Built 2011 Load: 22.7 t ADT: 15

FM - 660TH

Over: SEVEN MILE CREEK

075353102, Cass, IA

Built 1979 Load: 25.3 t ADT: 89

US 71

Over: LONE TREE CREEK

0.1 mi. S of Jct. SR G35, Cass, IA

Built 1971 Load: 29.3 t ADT: 2,830

IA 48

Over: DRAINAGE DITCH

0.8 mi. N of Jct. IA #92, Cass, IA

Built 1985 Load: 30.1 t ADT: 1,490

US 71

Over: TURKEY CREEK

0.1 MI. N OF SR G-35, Cass, IA

Built 1971 Load: 30.9 t ADT: 2,830

IA 148

Over: WEST NODAWAY RIVER

0.9 mi. S of jct. 92, Cass, IA

Built 2016 Load: 32.4 t ADT: 770

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.