FHWA NBI 2024 Inspection record Public-domain dataset

FM LEGNO

Carrying FM LEGNO over DEVILS RUN

079122401, Iowa, Iowa

Inventory: FHWA NBI 2024 · last ETL August 2026

FHWA NBI record, refreshed with each annual release.

Poor
0 t Inventory load rating Lower than 99% of rated Iowa bridges

FM LEGNO in Iowa, Iowa sits above 1% of rated Iowa bridges on inventory load rating (0 t), while its 1900 build year is earlier than 99% of Iowa's recorded-year cohort (241 bridges).

FM LEGNO in Iowa, Iowa is rated Poor in the FHWA's 2024 National Bridge Inventory. Built in 1900, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 2. The lowest applicable rating sets the federal condition category, so this Poor result describes the weakest reported component rather than the structure as a whole. No NBI category is a closure decision or a live crossing-safety verdict.

NBI record plate

Structure IA:000000000189910

PRE-1950 · STEEL · SINGLE-SPAN · TIED-CTRL · ADT-UNK · TRACE-LOAD · CAT-POOR

  • PRE-1950 Pre-1950
  • STEEL Steel
  • SINGLE-SPAN Single span
  • TIED-CTRL Tied control
  • ADT-UNK ADT unknown
  • TRACE-LOAD Trace load
  • CAT-POOR Poor

Inspection-sheet codes from this record’s year, material family, spans, controlling component, ADT, inventory load, and NBI category, not a live closure verdict.

Bridge Snapshot: FM LEGNO

The FM LEGNO bridge in Iowa, Iowa carries FM LEGNO over DEVILS RUN. It was built in 1900, making it 126 years old today. It was last reconstructed in 2005, extending its service life. The structure is built primarily of steel and spans 1 section, stretching 9.8 meters (32 feet) end to end. Average daily traffic is not reported for this structure. It is owned and maintained by County Highway Agency.

The latest FHWA inspection records show a deck rating of 3/9, superstructure at 2/9, substructure at 2/9. The weakest component sits in critical condition. A component scored 4 or below, placing this bridge in the federal Poor condition category rather than declaring it unsafe or closed.

How FM LEGNO compares

▼ 30.4
Load rating vs Iowa average (30.4 t; 23,718 of 23,719 rated)
241
Bridges in Iowa · 46 in Poor condition

Age against the county: built in 1900, earlier than 239 of Iowa's 241 bridges with a recorded construction year (99%), against a county median build year of 1978. Age is not a defect on its own, but it is the population from which future Poor ratings are drawn.

FM LEGNO 0.0 t
Iowa average (23,718 of 23,719 rated) 30.4 t

Live comparison across Iowa bridges with a recorded inventory load rating (23,718 of 23,719 rated).

FM LEGNO vs every rated Iowa bridge

Inventory load rating (metric tons), FHWA NBI, this state

0 Top 99% higher than 1% of 23,718 bridges

rated Iowa bridges, bucketed by value

Each bar is a band; taller bars hold more bridges. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source FHWA National Bridge Inventory · August 2026

Condition Ratings

Deck
3/9
Poor (1–4)
Superstructure
2/9
Poor (1–4)
Substructure
2/9
Poor (1–4)
Inventory Load Rating
0.0 t
NBI inventory level (metric tons)
Overall Condition
Poor

Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.

Reported 0–9 component ratings from the FHWA NBI. The highlighted component is the lowest reported input to this record’s current condition category; it is not a closure or live crossing-safety decision.

Iowa inventory by recorded NBI category

Exclusive Good/Fair/Poor bands across all 241 bridges in this county. Orthogonal to this structure's component profile above: a county catalog share, not a live crossing-safety verdict.

Structural Details

Year Built
1900
Last Reconstructed
2005
Material
Steel
Number of Spans
1
Structure Length
9.8 m (32 ft)
Deck Width
4.9 m (16 ft)
Owner
County Highway Agency
Structure Number
000000000189910

Condition Analysis

  • The deck (driving surface) rates poor at 3/9, with advanced deterioration recorded on the latest inspection.
  • The superstructure (beams and supports above the deck) rates critical at 2/9, with severe deterioration on the latest inspection.
  • The substructure (piers and abutments) rates critical at 2/9, with severe deterioration on the latest inspection.

How to read this record

FM LEGNO is in the federal Poor condition category. That is a component-based result, not a closure order.

  • NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
  • Understand what Poor condition does and does not mean before drawing conclusions. Poor condition explained
  • Compare FM LEGNO against other structures in Iowa and across Iowa. Iowa bridges
  • Noticed visible damage or a safety concern? Report it to the agency that owns the bridge, or call 911 in an emergency. How to report a bridge

Condition codes come straight from the FHWA National Bridge Inventory and are not a real-time safety judgment. Only the owning agency, a state DOT, county, or other owner, can post, restrict, or close a bridge.

Frequently Asked Questions

What do the condition ratings mean for FM LEGNO?

FM LEGNO in Iowa, Iowa has a deck rating of 3/9, superstructure rating of 2/9, and substructure rating of 2/9 on the FHWA's 0–9 scale.

How often is FM LEGNO inspected?

FM LEGNO's responsible agency sets its routine interval under FHWA's risk-based inspection rules; this page does not expose the scheduled interval.

What does “structurally deficient” mean in older bridge reports?

FHWA retired that reported status beginning with the 2018 archive. FM LEGNO is currently shown as Poor condition from its component ratings; that category is not a live closure or safety decision.

What is the inventory load rating for FM LEGNO?

FM LEGNO has an NBI inventory load rating of 0.0 metric tons.

Who is responsible for maintaining FM LEGNO?

FM LEGNO is owned and maintained by County Highway Agency.

How old is FM LEGNO and does age affect safety?

FM LEGNO was built in 1900, making it 126 years old and last reconstructed in 2005.

Disclaimer: Bridge condition data is from the FHWA NBI and reflects the last reported inspection. A Poor condition rating is not a live declaration that a bridge is closed or unsafe for travel. For current closure, posting, or safety information, contact the responsible transportation agency.

Data sourced from the Federal Highway Administration National Bridge Inventory. See our methodology for details. Retrieved and formatted by PlainBridges

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Send this source-bounded record or download its data card. An NBI condition category is not a closure or live crossing-safety verdict.

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Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Component ratings, ADT, and condition category on this page are copied from the NBI record for this structure; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.