Iron County, MO

129 public highway bridges

Iron County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Iron County, Missouri contains 129 public highway bridges. Roughly 30.2% are rated “Good,” 59.7% “Fair,” and 9.3% “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.

129
Total Bridges
30.2%
Good
59.7%
Fair
9.3%
Poor Condition

Condition Distribution

Good
30.2% (39)
Fair
59.7% (77)
Poor
9.3% (12)

All Bridges (129)

RT BB E

Good

Over: BRUSHY CR

S 1 T 30 N R 3 E, Iron, MO

Built 1962 Load: 37.8 t ADT: 268

UPPER DETMER RD

Good

Over: MARBLE CR

S 34 T 33 N R 4 E, Iron, MO

Built 2017 Load: 40.5 t ADT: 50

RT N N

Good

Over: UP RR

S 12 T 34 N R 3 E, Iron, MO

Built 2007 Load: 42.3 t ADT: 3,309

MO 72 E

Good

Over: STOUTS CR

S 3 T 33 N R 4 E, Iron, MO

Built 2019 Load: 42.3 t ADT: 1,719

MO 72 E

Good

Over: BR OF STOUTS CR

S 36 T 33 N R 4 E, Iron, MO

Built 1930 Load: 42.3 t ADT: 1,719

MO 49 S

Good

Over: BIG CR

S 23 T 31 N R 3 E, Iron, MO

Built 2018 Load: 43.2 t ADT: 1,120

MO 21 S

Good

Over: CARVER CR

S 4 T 32 N R 3 E, Iron, MO

Built 2018 Load: 46.8 t ADT: 876

MORNING SIDE LN

Good

Over: BR OF STROUTS CR

S 25 T 34 N R 3 E, Iron, MO

Built 2019 Load: 46.8 t ADT: 35

MO 72 E

Good

Over: MARTIN BR

S 3 T 33 N R 4 E, Iron, MO

Built 1928 Load: 46.8 t ADT: 1,719

MO 49 S

Good

Over: SUTTON BR

S 36 T 31 N R 3 E, Iron, MO

Built 1924 Load: 49.5 t ADT: 1,120

RT E E

Good

Over: MARBLE CR

S 3 T 32 N R 4 E, Iron, MO

Built 1976 Load: 50.4 t ADT: 1,193

CEMETERY RD

Good

Over: BR OF WILDCAT CR

S 8 T 30 N R 4 E, Iron, MO

Built 2016 Load: 51.3 t ADT: 100

MO 49 S

Good

Over: GOFF BR

S 2 T 32 N R 3 E, Iron, MO

Built 1986 Load: 54.0 t ADT: 1,311

MO 21 S

Good

Over: CLAYBAUGH CR

S 14 T 33 N R 3 E, Iron, MO

Built 1985 Load: 57.6 t ADT: 3,562

RT N S

Good

Over: MILLS CR

S 36 T 34 N R 2 E, Iron, MO

Built 1976 Load: 64.8 t ADT: 1,290

BARRELL LOTZ RD

Good

Over: BR OF BIG CR

S 16 T 31 N R 3 E, Iron, MO

Built 2004 Load: 76.5 t ADT: 30

RT E E

Good

Over: BR MARBLE CR

S 15 T 32 N R 4 E, Iron, MO

Built 1978 Load: 99.0 t ADT: 1,193

N MAIN ST

Poor

Over: KNOB CR

S 31 T 34 N R 4 E, Iron, MO

Built 1972 ADT: 200

RA RD

Poor

Over: CREEK

S 9 T 34 N R 3 E, Iron, MO

Built 1935 Load: 5.4 t ADT: 75

MO 32 E

Poor

Over: RICHARDSON CR

S 218 T 35 N R 2 E, Iron, MO

Built 1922 Load: 8.1 t ADT: 980

THOMPSON RD

Poor

Over: CREEK

S 5 T 33 N R 4 E, Iron, MO

Built 1930 Load: 9.0 t ADT: 800

RT E E

Poor

Over: MARBLE CR

S 10 T 32 N R 4 E, Iron, MO

Built 1936 Load: 9.0 t ADT: 1,193

ST MARYS RD

Poor

Over: BR OF STOUTS CR

S 33 T 34 N R 4 E, Iron, MO

Built 1980 Load: 11.7 t ADT: 35

BANNER RD

Poor

Over: REID CR

S 1 T 34 N R 2 E, Iron, MO

Built 1950 Load: 12.6 t ADT: 100

MO 49 S

Poor

Over: UP RR

S 25 T 31 N R 3 E, Iron, MO

Built 1927 Load: 14.4 t ADT: 1,120

SERVICE ROAD

Poor

Over: COUNCIL BLUFF LAKE

COUNCIL BLUFF LAKE INTAKE, Iron, MO

Built 1978 Load: 16.2 t ADT: 5

MO 49 S

Poor

Over: BR

S 1 T 30 N R 3 E, Iron, MO

Built 1924 Load: 17.1 t ADT: 1,120

RT U E

Poor

Over: BR E FK CEDAR CR

S 4 T 34 N R 3 E, Iron, MO

Built 1922 Load: 27.0 t ADT: 698

ADAMS HOLLOW -154

Poor

Over: CREEK

S 1 T 30 N R 3 E, Iron, MO

Built 1930 Load: 99.9 t ADT: 35

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.