Marshall County, IA

283 public highway bridges

Marshall County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Marshall County, Iowa contains 283 public highway bridges. Roughly 28.3% are rated “Good,” 20.8% “Fair,” and 45.2% “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.

283
Total Bridges
28.3%
Good
20.8%
Fair
45.2%
Poor Condition

Condition Distribution

Good
28.3% (80)
Fair
20.8% (59)
Poor
45.2% (128)

All Bridges (283)

LOCAL

Poor

Over: RAVEN CREEK

082172401, Marshall, IA

Built 1934 Load: 23.3 t ADT: 30

LOCAL

Poor

Over: STREAM

084203001, Marshall, IA

Built 1981 Load: 23.4 t ADT: 11

LOCAL

Poor

Over: BR LINN CR

084193001, Marshall, IA

Built 1942 Load: 23.7 t ADT: 30

LOCAL

Poor

Over: MUD CREEK

085201403, Marshall, IA

Built 1985 Load: 24.5 t ADT: 26

LOCAL

Poor

Over: CREEK

085170402, Marshall, IA

Built 1945 Load: 25.0 t ADT: 20

LOCAL

Poor

Over: CREEK

083171103, Marshall, IA

Built 1956 Load: 25.1 t ADT: 49

FM

Poor

Over: MINERVA CREEK

084200203, Marshall, IA

Built 1957 Load: 25.1 t ADT: 59

LOCAL

Poor

Over: MINERVA CR

084201502, Marshall, IA

Built 1919 Load: 25.2 t ADT: 30

LOCAL

Poor

Over: CREEK

084173502, Marshall, IA

Built 1944 Load: 25.5 t ADT: 73

FM

Poor

Over: N TIMBER CREEK

083192002, Marshall, IA

Built 1963 Load: 25.7 t ADT: 903

LOCAL

Poor

Over: BRANCH S TIMBER CREEK

082180801, Marshall, IA

Built 1951 Load: 25.8 t ADT: 15

FM

Poor

Over: LUTES CREEK

082172904, Marshall, IA

Built 1940 Load: 25.9 t ADT: 29

FM

Poor

Over: LINN CREEK

083190212, Marshall, IA

Built 1963 Load: 26.0 t ADT: 216

LOCAL

Poor

Over: BR MINERVA CR

085200903, Marshall, IA

Built 1984 Load: 26.8 t ADT: 26

FM

Poor

Over: LITTLE ASHER CR

084182202, Marshall, IA

Built 1968 Load: 28.5 t ADT: 432

LOCAL RD

Poor

Over: TIMBER CREEK

083182410, Marshall, IA

Built 1977 Load: 29.7 t ADT: 227

FM

Poor

Over: ROCK CREEK

084172813, Marshall, IA

Built 1965 Load: 30.4 t ADT: 2,838

LOCAL

Poor

Over: BRANCH SNIPE CREEK

082192702, Marshall, IA

Built 1920 Load: 30.7 t ADT: 11

LOCAL

Poor

Over: LINN CREEK

083190401, Marshall, IA

Built 1916 Load: 30.7 t ADT: 21

LOCAL

Poor

Over: CREEK

083190503, Marshall, IA

Built 1918 Load: 30.7 t ADT: 35

LOCAL

Poor

Over: BRANCH NORTH TIMBER CRK

083202401, Marshall, IA

Built 1924 Load: 30.7 t ADT: 41

FM

Poor

Over: BRANCH BURNETTE CREEK

084170603, Marshall, IA

Built 1984 Load: 31.8 t ADT: 304

150TH ST

Poor

Over: BURNETT CR

085173301, Marshall, IA

Built 1979 Load: 32.7 t ADT: 47

SO 3RD AVE

Poor

Over: ANSON CREEK

083181102, Marshall, IA

Built 1979 Load: 32.7 t ADT: 418

LOCAL

Poor

Over: CREEK

084172812, Marshall, IA

Built 1916 Load: 33.2 t ADT: 123

S. 18TH AVE

Poor

Over: OVER UP RR

084173100, Marshall, IA

Built 1980 Load: 34.7 t ADT: 6,813

LOCAL

Poor

Over: N SKUNK RIVER

083202002, Marshall, IA

Built 1917 Load: 35.1 t ADT: 49

FM

Poor

Over: CREEK

084172502, Marshall, IA

Built 1917 Load: 35.1 t ADT: 108

LOCAL

Poor

Over: MINERVA CR

084201002, Marshall, IA

Built 1917 Load: 35.1 t ADT: 21

WALNUT ST

Poor

Over: ABANDON RR

082200903, Marshall, IA

Built 1977 Load: 35.6 t ADT: 689

FM

Poor

Over: LINN CREEK

083200304, Marshall, IA

Built 1988 Load: 37.4 t ADT: 737

LOCAL

Poor

Over: BRANCH S TIMBER CREEK

083172004, Marshall, IA

Built 1938 Load: 42.4 t ADT: 11

LOCAL

Poor

Over: CREEK

085190303, Marshall, IA

Built 1983 Load: 45.4 t ADT: 11

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.