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)

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

FM

Structurally Deficient

Over: SOUTH TIMBER CREEK

082180902, Marshall, IA

Built 1957 ADT: 39

LOCAL

Structurally Deficient

Over: BR BURNETT CR

085173101, Marshall, IA

Built 1977 ADT: 5

LOCAL

Structurally Deficient

Over: DOWD CREEK

085190103, Marshall, IA

Built 1916 ADT: 16

FM

Structurally Deficient

Over: CREEK

085190602, Marshall, IA

Built 1918 ADT: 25

LOCAL

Structurally Deficient

Over: BRUSH CREEK

082172705, Marshall, IA

Built 1977 Load: 4.4 t ADT: 47

LOCAL

Structurally Deficient

Over: CREEK

083171108, Marshall, IA

Built 1916 Load: 4.5 t ADT: 145

LOCAL

Structurally Deficient

Over: BRUSH CREEK

082172202, Marshall, IA

Built 1917 Load: 9.9 t ADT: 47

LOCAL

Structurally Deficient

Over: N MINERVA CREEK

085201601, Marshall, IA

Built 1917 Load: 10.0 t ADT: 21

LOCAL

Structurally Deficient

Over: CREEK

085171402, Marshall, IA

Built 1956 Load: 10.2 t ADT: 16

LOCAL

Structurally Deficient

Over: CREEK

083190603, Marshall, IA

Built 1918 Load: 10.9 t ADT: 30

LOCAL

Structurally Deficient

Over: DAVISONS CREEK

083172504, Marshall, IA

Built 1951 Load: 11.8 t ADT: 21

LOCAL

Structurally Deficient

Over: SNIPE CREEK

082193402, Marshall, IA

Built 1920 Load: 12.8 t ADT: 20

LOCAL

Structurally Deficient

Over: SOUTH TIMBER CREEK

082170602, Marshall, IA

Built 1938 Load: 13.7 t ADT: 44

FM

Structurally Deficient

Over: TIMBER CREEK

083170804, Marshall, IA

Built 1945 Load: 14.5 t ADT: 59

LOCAL

Structurally Deficient

Over: SMALL

084203002, Marshall, IA

Built 1983 Load: 16.3 t ADT: 20

LOCAL

Structurally Deficient

Over: BR MINERVA CR

085200804, Marshall, IA

Built 1917 Load: 16.9 t ADT: 15

FM

Structurally Deficient

Over: CREEK

082183101, Marshall, IA

Built 1934 Load: 17.0 t ADT: 44

LOCAL

Structurally Deficient

Over: BRUSH CREEK

082171603, Marshall, IA

Built 1917 Load: 17.2 t ADT: 16

FM

Structurally Deficient

Over: LINN CR

083180902, Marshall, IA

Built 1956 Load: 17.2 t ADT: 369

LOCAL

Structurally Deficient

Over: BRANCH N SKUNK RIVER

082191902, Marshall, IA

Built 1954 Load: 17.4 t ADT: 15

140TH ST

Structurally Deficient

Over: MINERVA CREEK

085202703, Marshall, IA

Built 1912 Load: 18.1 t ADT: 62

FM

Structurally Deficient

Over: TIMBER CREEK

083182102, Marshall, IA

Built 1947 Load: 19.1 t ADT: 79

LOCAL

Structurally Deficient

Over: DAVISONS CREEK

083171404, Marshall, IA

Built 1978 Load: 19.9 t ADT: 20

LOCAL

Structurally Deficient

Over: CREEK

084173502, Marshall, IA

Built 1944 Load: 25.5 t ADT: 73

FM

Structurally Deficient

Over: LINN CREEK

083190212, Marshall, IA

Built 1963 Load: 26.0 t ADT: 216

FM

Structurally Deficient

Over: ROCK CREEK

084172813, Marshall, IA

Built 1965 Load: 30.4 t ADT: 2,838

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

Related

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