Marion County, IA

204 public highway bridges

Marion County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Marion County, Iowa contains 204 public highway bridges. Roughly 36.8% are rated “Good,” 43.6% “Fair,” and 12.3% “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.

204
Total Bridges
36.8%
Good
43.6%
Fair
12.3%
Poor Condition

Condition Distribution

Good
36.8% (75)
Fair
43.6% (89)
Poor
12.3% (25)

All Bridges (204)

IA 5

Unknown

Over: IA 92 (S JCT)

At S jct. Iowa 92, Marion, IA

Built 1978 ADT: 3,010

OLD HWY 92

Unknown

Over: IA 92

3.9 MI. E OF E JCT.IOWA 5, Marion, IA

Built 1978 ADT: 3,840

CLARK ST

Unknown

Over: IA 163

2.5 MI. E OF SR G-28., Marion, IA

Built 1994 ADT: 7,100

IDAHO DR

Unknown

Over: IA 163

1.3 mi. W of SR T17, Marion, IA

Built 1994 ADT: 10,300

SR G28

Unknown

Over: IA 163

At Jct SR G28/Wash. St., Marion, IA

Built 1994 ADT: 9,100

IA 163 EB

Unknown

Over: SR G5T

At jct. SR G5T, Marion, IA

Built 1996 ADT: 1,165

IA 163 WB

Unknown

Over: SR G5T

Jct. SR G5T, Marion, IA

Built 1996 ADT: 1,165

IA 92 & SB IA 5

Unknown

Over: 110TH PLACE

1.6 mi. N of jct. IA 14, Marion, IA

Built 1978 ADT: 135

IA 92 & NB IA 5

Unknown

Over: 110TH PLACE

1.6 mi. N of jct. IA 14, Marion, IA

Built 1978 ADT: 135

SB IA 5 & IA 92

Unknown

Over: IA 14

At jct. Iowa 14, Marion, IA

Built 1978 ADT: 3,300

NB IA 5 & IA 92

Unknown

Over: IA 14

AT Jct. Iowa 14, Marion, IA

Built 1978 ADT: 3,300

IA 92 EB & IA 5 SB

Unknown

Over: 135TH PLACE

1.0 MI. S OF JCT IOWA #14, Marion, IA

Built 1978 ADT: 75

IA 92 WB & IA 5 NB

Unknown

Over: 135TH PLACE

1.0 MI. S OF JCT. IA 14, Marion, IA

Built 1978 ADT: 75

IA 92

Unknown

Over: 165TH AVE

2.0 MI. E OF E JCT IOWA 5, Marion, IA

Built 1978 ADT: 180

MCKIMBER STREET

Unknown

Over: IA 5 & IA 92

2.0 mi. N Jct. IA 14, Marion, IA

Built 1978 ADT: 4,920

FM

Fair

Over: CEDAR CREEK

074180203, Marion, IA

Built 1957 ADT: 20

LOCAL

Fair

Over: ENGLISH CREEK

075202304, Marion, IA

Built 2002

Ag and DNR Traffic

Fair

Over: Red Rock Pool

Marion Co.; S30, T76, R19, Marion, IA

Built 1920 Load: 7.8 t ADT: 10

Ag and DNR Traffic

Fair

Over: Red Rock Pool Channel

Marion Co., S22,T77N,R21, Marion, IA

Built 1955 Load: 9.0 t ADT: 30

FM

Fair

Over: HICKORY CREEK

074193304, Marion, IA

Built 1953 Load: 10.0 t ADT: 90

LOCAL

Fair

Over: STREAM

074202402, Marion, IA

Built 1973 Load: 14.0 t ADT: 16

FM

Fair

Over: SMALL STREAM

074210504, Marion, IA

Built 1950 Load: 14.9 t ADT: 45

LOCAL

Fair

Over: WILDCAT CREEK

076211202, Marion, IA

Built 1971 Load: 15.0 t ADT: 73

LOCAL

Fair

Over: STREAM

074190104, Marion, IA

Built 1960 Load: 15.7 t ADT: 145

LOCAL

Fair

Over: STREAM

074212404, Marion, IA

Built 1960 Load: 15.9 t ADT: 62

FM

Fair

Over: ENGLISH CREEK

074200403, Marion, IA

Built 1954 Load: 16.1 t ADT: 230

FM

Fair

Over: STREAM

075180606, Marion, IA

Built 1956 Load: 16.3 t ADT: 60

LOCAL

Fair

Over: CROW CREEK

075211703, Marion, IA

Built 1960 Load: 17.7 t ADT: 35

LOCAL

Fair

Over: STREAM

077212801, Marion, IA

Built 1975 Load: 17.7 t ADT: 123

FM

Fair

Over: LONG BRANCH CREEK

074201704, Marion, IA

Built 1960 Load: 18.1 t ADT: 60

LOCAL

Fair

Over: ENGLISH CREEK

074203006, Marion, IA

Built 1958 Load: 18.5 t ADT: 62

VIRGINIA DR

Fair

Over: STREAM

074182904, Marion, IA

Built 1968 Load: 19.2 t

LOCAL

Fair

Over: SMALL STREAM

074181406, Marion, IA

Built 1984 Load: 19.2 t ADT: 11

LOCAL

Fair

Over: CALHOUN CREEK

077200403, Marion, IA

Built 1961 Load: 20.1 t ADT: 41

IA 14

Fair

Over: DES MOINES RIVER & RES

1.2 MI. N OF SR G40, Marion, IA

Built 1965 Load: 20.2 t ADT: 3,820

FM

Fair

Over: WHITE BREAST CREEK

074210301, Marion, IA

Built 1955 Load: 20.4 t ADT: 110

IA 14

Fair

Over: BRUSH CREEK

0.2 MI. S OF S.R. G28, Marion, IA

Built 1965 Load: 21.0 t ADT: 3,820

FM

Fair

Over: PRAIRE CREEK

077201701, Marion, IA

Built 1968 Load: 21.0 t ADT: 70

LOCAL

Fair

Over: STREAM

077180702, Marion, IA

Built 1977 Load: 21.3 t ADT: 5

FM

Fair

Over: SKUNK RIVER

077182304, Marion, IA

Built 1954 Load: 21.6 t ADT: 220

FM

Fair

Over: CALHOUN CREEK

077201603, Marion, IA

Built 1969 Load: 21.6 t ADT: 110

LOCAL

Fair

Over: WALNUT CREEK

077210203, Marion, IA

Built 1969 Load: 21.6 t ADT: 73

LOCAL

Fair

Over: STREAM

074211504, Marion, IA

Built 1994 Load: 21.8 t ADT: 16

LOCAL

Fair

Over: STREAM

075181308, Marion, IA

Built 1976 Load: 21.8 t ADT: 16

LOCAL

Fair

Over: STREAM

075182104, Marion, IA

Built 2004 Load: 21.9 t ADT: 466

LOCAL

Fair

Over: COON CREEK

075210801, Marion, IA

Built 1961 Load: 22.1 t ADT: 35

LOCAL

Fair

Over: ENGLISH CREEK

074200903, Marion, IA

Built 1977 Load: 22.3 t ADT: 73

FM

Fair

Over: STREAM

075182547, Marion, IA

Built 1958 Load: 22.3 t ADT: 100

LOCAL

Fair

Over: STREAM

077180701, Marion, IA

Built 1977 Load: 22.7 t ADT: 35

LOCAL

Fair

Over: STREAM

074181903, Marion, IA

Built 1900 Load: 23.2 t ADT: 10

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.