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)

SO CENTER ST

Unknown

Over: RR AND MADISON ST

084183504, Marshall, IA

Built 1951 ADT: 1,370

SB IA 330

Unknown

Over: US 30

AT JUNCTION US 30, Marshall, IA

Built 2006 ADT: 3,350

S 3RD ST

Unknown

Over: UP RR & ST

084183500, Marshall, IA

Built 1984 ADT: 600

MARSH AVE

Unknown

Over: US 30

1.1 MI. E OF JCT. IA 330, Marshall, IA

Built 1995 ADT: 13,200

EB US 30

Unknown

Over: IA 14

AT JUNCTION WITH IA 14, Marshall, IA

Built 1995 ADT: 4,750

WB US 30

Unknown

Over: IA 14

AT THE JCT. OF IA 14, Marshall, IA

Built 1995 ADT: 4,750

US 30 EB

Unknown

Over: OAKS AVE

2.5 MILES W OF JCT IA 14, Marshall, IA

Built 1996 ADT: 195

US 30 WB

Unknown

Over: OAKS AVE

2.5 MILES W OF JCT IA 14, Marshall, IA

Built 1996 ADT: 195

US 30 EB

Unknown

Over: RAMP B TO IA AVE

2.2 MILES E OF JCT IA 330, Marshall, IA

Built 1996 ADT: 750

US 30 WB

Unknown

Over: RAMP B TO IA AVE

2.1 MI. E OF JCT. IA 330, Marshall, IA

Built 1996 ADT: 750

PARKER AVE

Unknown

Over: US 30

1.5 MILES W OF JCT. IA 14, Marshall, IA

Built 1996 ADT: 10,800

GOVERNOR RD

Unknown

Over: RELOC US 30

1.0 MI. E OF JCT. IA 14, Marshall, IA

Built 1995 ADT: 11,900

S 18TH AVE

Unknown

Over: US 30

1.5 MILES E OF JCT IA 14, Marshall, IA

Built 1995 ADT: 10,500

US 30 EB

Unknown

Over: IOWA #146

AT JUNCTION WITH IA 146, Marshall, IA

Built 2002 ADT: 1,505

US 30 WB

Unknown

Over: IOWA #146

AT JUNCTION WITH IA 146, Marshall, IA

Built 2002 ADT: 1,505

NB IA 330

Unknown

Over: US 30

AT JUNCTION WITH US 30, Marshall, IA

Built 2001 ADT: 3,350

LOCAL

Fair

Over: LINN CREEK

083190501, Marshall, IA

Built 1939 Load: 12.6 t ADT: 21

LOCAL

Fair

Over: ROCK CR

084172201, Marshall, IA

Built 1950 Load: 13.0 t ADT: 5

LOCAL

Fair

Over: CREEK

085182302, Marshall, IA

Built 1941 Load: 17.3 t ADT: 11

LOCAL

Fair

Over: BURNETT CR

085173301, Marshall, IA

Built 1940 Load: 18.3 t ADT: 47

FM

Fair

Over: N SKUNK RIVER

082201009, Marshall, IA

Built 1956 Load: 18.7 t ADT: 413

LOCAL

Fair

Over: BR MINERVA CREEK

085203202, Marshall, IA

Built 1947 Load: 19.0 t ADT: 16

LOCAL

Fair

Over: CREEK

085170901, Marshall, IA

Built 1949 Load: 19.2 t ADT: 20

LOCAL

Fair

Over: CLEAR CREEK

082203303, Marshall, IA

Built 1971 Load: 19.4 t ADT: 35

FM

Fair

Over: RAVEN CREEK

082171201, Marshall, IA

Built 1978 Load: 21.0 t ADT: 98

LOCAL

Fair

Over: NORTH TIMBER CREEK

083182203, Marshall, IA

Built 1979 Load: 21.0 t ADT: 113

FM

Fair

Over: NORTH TIMBER CREEK

083192204, Marshall, IA

Built 1984 Load: 21.0 t ADT: 49

LOCAL

Fair

Over: BR BURNETT CR

085172901, Marshall, IA

Built 1957 Load: 22.0 t ADT: 11

LOCAL

Fair

Over: LUTES CREEK

082173001, Marshall, IA

Built 1984 Load: 22.1 t ADT: 62

FM

Fair

Over: SMALL STREAM

083190504, Marshall, IA

Built 1984 Load: 22.1 t ADT: 177

LOCAL

Fair

Over: NICKOLSON CREEK

084172105, Marshall, IA

Built 1984 Load: 22.1 t ADT: 62

FM

Fair

Over: SMALL

084200202, Marshall, IA

Built 1983 Load: 22.7 t ADT: 509

FM

Fair

Over: CREEK

083172601, Marshall, IA

Built 1962 Load: 22.9 t ADT: 39

LOCAL

Fair

Over: LAKE

082200602, Marshall, IA

Built 1968 Load: 25.1 t ADT: 50

FM

Fair

Over: MINERVA CREEK

084190506, Marshall, IA

Built 1982 Load: 25.1 t ADT: 255

LOCAL

Fair

Over: MUD CREEK

085201304, Marshall, IA

Built 1957 Load: 25.1 t ADT: 11

IA 330

Fair

Over: CHICKEN CREEK

3.9 MILES W OF JCT IA 14, Marshall, IA

Built 1957 Load: 25.4 t ADT: 1,490

FM

Fair

Over: BURNETT CREEK

084182305, Marshall, IA

Built 1985 Load: 27.3 t ADT: 1,061

FM

Fair

Over: ROCK CREEK

084172702, Marshall, IA

Built 1971 Load: 27.8 t ADT: 1,964

IA 330 NB

Fair

Over: NORTH SKUNK RIVER

0.8 mi. N of Jct. SR S-52, Marshall, IA

Built 1969 Load: 28.0 t ADT: 8,300

LOCAL

Fair

Over: CREEK

084191301, Marshall, IA

Built 1920 Load: 28.2 t ADT: 21

FM

Fair

Over: IOWA RIVER

084190205, Marshall, IA

Built 1985 Load: 28.5 t ADT: 69

LOCAL

Fair

Over: NORTH SKUNK RIVER

082202502, Marshall, IA

Built 1985 Load: 28.8 t ADT: 25

FM

Fair

Over: OVERFLOW

084190205, Marshall, IA

Built 1984 Load: 29.8 t ADT: 69

LOCAL

Fair

Over: BURNETT CREEK

084170702, Marshall, IA

Built 1979 Load: 30.2 t ADT: 82

FM

Fair

Over: LINN CREEK

084193202, Marshall, IA

Built 1987 Load: 30.2 t ADT: 147

IA 330

Fair

Over: LINN CREEK

1.8 MILES N OF JCT. US 30, Marshall, IA

Built 1964 Load: 30.6 t ADT: 2,390

LOCAL

Fair

Over: LITTLE ASHER CREEK

085182201, Marshall, IA

Built 1980 Load: 30.7 t ADT: 47

FM

Fair

Over: MUD CREEK

085192006, Marshall, IA

Built 1981 Load: 30.8 t ADT: 255

LOCAL

Fair

Over: N SKUNK RIVER

083201901, Marshall, IA

Built 1916 Load: 31.1 t ADT: 30

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.