Marshall County, IA

283 public highway bridges

Marshall County Bridge Snapshot

Marshall County, Iowa contains 283 public highway bridges in the FHWA National Bridge Inventory. Roughly 28.3% are rated “Good,” 20.8% “Fair,” 45.2% “Poor,” and 45.2% 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.

283

Total Bridges

28.3%

Good

45.2%

Poor

45.2%

Structurally Deficient

Condition Distribution

Good

28.3% (80)

Fair

20.8% (59)

Poor

45.2% (128)

SD

45.2% (128)

All Bridges (283)

Sort:

FM

Over: SMALL STREAM

083170808, Marshall, IA

Built 1984 Load: 32.3 t ADT: 157

FM

Over: MINERVA CREEK

084190504, Marshall, IA

Built 1981 Load: 32.7 t ADT: 255

FM

Over: SMALL CREEK

084192101, Marshall, IA

Built 1985 Load: 32.7 t ADT: 746

FM

Over: SMALL STREAM

084202602, Marshall, IA

Built 1985 Load: 32.7 t ADT: 619

FM

Over: SMALL STREAM

084203404, Marshall, IA

Built 1984 Load: 32.7 t ADT: 737

FM

Over: DAVISONS CREEK

083172601, Marshall, IA

Built 1979 Load: 33.0 t ADT: 39

FM

Over: MIDDLE TIMBER CREEK

083183302, Marshall, IA

Built 1979 Load: 33.0 t ADT: 108

NEW HIGHLAND AC

Over: UP RR

083180400, Marshall, IA

Built 2008 Load: 33.6 t ADT: 1,738

FM

Over: N TIMBER CREEK

083181904, Marshall, IA

Built 1973 Load: 35.5 t ADT: 108

FM

Over: SNIPE CREEK

082193301, Marshall, IA

Built 1980 Load: 37.4 t ADT: 39

SO. 6TH ST.

Over: LINN CREEK

083183400, Marshall, IA

Built 1984 Load: 38.1 t ADT: 11,300

DURHAM AVE

Over: NORTH SKUNK RIVER

082201006, Marshall, IA

Built 1973 Load: 39.5 t ADT: 113

NB IA 14

Over: IOWA RIVER

0.8 MILE S OF JCT SR E27, Marshall, IA

Built 1968 Load: 41.0 t ADT: 2,950

IA 330

Over: CLEAR CREEK

1.8 MI. S OF S JCT SR S52, Marshall, IA

Built 1979 Load: 41.5 t ADT: 4,150

FM

Over: MINERVA CREEK

084200202, Marshall, IA

Built 1995 Load: 42.3 t ADT: 363

FM

Over: MIDDLE MINERVA CREEK

084200403, Marshall, IA

Built 2005 Load: 42.3 t ADT: 147

FM

Over: BIG MINERVA CREEK

085202606, Marshall, IA

Built 1999 Load: 42.3 t ADT: 187

FM

Over: N TIMBER CR

083170808, Marshall, IA

Built 1989 Load: 42.9 t ADT: 157

FM

Over: MUD CREEK

085191903, Marshall, IA

Built 1967 Load: 44.0 t ADT: 265

LOCAL

Over: BR MINERVA CREEK

084190601, Marshall, IA

Built 1988 Load: 45.4 t ADT: 20

LOCAL

Over: LINN CR

084193101, Marshall, IA

Built 1989 Load: 47.7 t ADT: 41

FM

Over: TIMBER CREEK

083171704, Marshall, IA

Built 1991 Load: 48.1 t ADT: 187

LOCAL

Over: SOUTH TIMBER CREEK

082181702, Marshall, IA

Built 1971 Load: 69.3 t ADT: 30

FM

Over: NORTH SKUNK RIVER

083202106, Marshall, IA

Built 1965 Load: 99.9 t ADT: 628

FM

Over: CREEK

085173402, Marshall, IA

Built 1963 Load: 99.9 t ADT: 1,483

IA 330

Over: ASHER CREEK

2.0 MILES WEST OF JCT 14, Marshall, IA

Built 1957 Load: 20.4 t ADT: 1,490

IA 14

Over: LITTLE ASHER CREEK

2.3 MILES NORTH OF IA 330, Marshall, IA

Built 1987 Load: 26.0 t ADT: 4,220

277TH ST

Over: CLEAR CREEK

083203205, Marshall, IA

Built 2021 Load: 32.4 t ADT: 16

NORTH CENTER ST

Over: IOWA RIVER OVERFLOW

084182306, Marshall, IA

Built 2021 Load: 32.4 t ADT: 737

NORTH CENTER ST

Over: IOWA RIVER OVERFLOW

084182306, Marshall, IA

Built 2021 Load: 32.4 t ADT: 737

NORTH CENTER ST

Over: IOWA RIVER

084182600, Marshall, IA

Built 2021 Load: 32.4 t ADT: 737

JESSUP AVE

Over: MINERVA CREEK

084190304, Marshall, IA

Built 2023 Load: 32.4 t ADT: 62

SR E 18

Over: IOWA RIVER

085191103, Marshall, IA

Built 2011 Load: 32.4 t ADT: 324

MORMON RIDGE RD

Over: STREAM

085193402, Marshall, IA

Built 2021 Load: 32.4 t ADT: 15

W OLIVE ST

Over: CREEK

083180300, Marshall, IA

Built 2013 Load: 32.4 t ADT: 1,205

IA 146

Over: UP RR

0.5 Mi,South,US#30, Marshall, IA

Built 2019 Load: 32.4 t ADT: 2,160

IA 330

Over: DRAINAGE DITCH

1.8 MI S OF N JCT SR S52, Marshall, IA

Built 1982 Load: 32.7 t ADT: 8,300

LOCAL

Over: BRANCH S TIMBER CREEK

082181501, Marshall, IA

Built 2005 Load: 32.7 t ADT: 41

LOCAL

Over: SNIPE CREEK

082182303, Marshall, IA

Built 2003 Load: 32.7 t ADT: 26

LOCAL

Over: BR OF BURNETT CR

084181201, Marshall, IA

Built 2008 Load: 32.7 t ADT: 82

IA 330

Over: STREAM

0.7 MILES N OF JCT SR E35, Marshall, IA

Built 1970 Load: 32.7 t ADT: 2,780

E29 190TH ST

Over: MINERVA CREEK

084202001, Marshall, IA

Built 2001 Load: 32.7 t ADT: 383

LOCAL

Over: CREEK

085180401, Marshall, IA

Built 1989 Load: 32.7 t ADT: 20

LOCAL

Over: BR TIMBER CREEK

083182305, Marshall, IA

Built 1992 Load: 32.7 t ADT: 113

FM E-41

Over: BR LINN CREEK

083190803, Marshall, IA

Built 1996 Load: 32.7 t ADT: 412

LOCAL

Over: BR TIMBER CREEK

083202302, Marshall, IA

Built 1990 Load: 32.7 t ADT: 26

ARNEY AVE

Over: MINERVA CREEK

085203102, Marshall, IA

Built 2000 Load: 32.7 t ADT: 15

LOCAL

Over: STREAM

085191003, Marshall, IA

Built 2009 Load: 32.7 t ADT: 324

LOCAL

Over: STREAM

083202802, Marshall, IA

Built 2009 Load: 32.7 t ADT: 20

N 13TH ST

Over: STREAM

084182700, Marshall, IA

Built 2012 Load: 32.7 t ADT: 1,661

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

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

Reviewed byPlainbridges Editorial, Plain Bridges Editorial Team · June 5, 2026