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)

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.

Related

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