FHWA NBI 2024 Inspection record Public-domain dataset

LA0686

Carrying LA0686 over CREEK

2.0 MI NORTH OF LA 347, St. Martin, Louisiana

Inventory: FHWA NBI 2024 · last ETL August 2026

FHWA NBI record, refreshed with each annual release.

Good
32 t Inventory load rating Lower than 58% of rated Louisiana bridges

LA0686 in St. Martin, Louisiana sits above 42% of rated Louisiana bridges on inventory load rating (32 t), while its 2014 build year is earlier than 9% of St. Martin's recorded-year cohort (116 bridges).

LA0686 in St. Martin, Louisiana is rated Good in the FHWA's 2024 National Bridge Inventory. Built in 2014, it carries 1 rated component on the inspecting agency's 0-9 scale, and its weakest reported component scores 8. The lowest applicable rating sets the federal condition category, so this Good 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 LA:035000000030437

POST-2000 · CONCRETE · MULTI-SPAN · CULVERT-LED · ARTERIAL-ADT · STANDARD-LOAD · CAT-GOOD

  • POST-2000 2000+
  • CONCRETE Concrete
  • MULTI-SPAN 2 spans
  • CULVERT-LED Culvert-led
  • ARTERIAL-ADT Arterial ADT
  • STANDARD-LOAD Standard load
  • CAT-GOOD Good

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: LA0686

The LA0686 bridge in St. Martin, Louisiana carries LA0686 over CREEK. It was built in 2014, making it 12 years old today. The structure is built primarily of concrete and spans 2 sections, stretching 6.9 meters (23 feet) end to end. Daily traffic averages 3,212 vehicles, placing it in the moderately-trafficked tier of Louisiana bridges. It is owned and maintained by State Highway Agency.

The latest FHWA inspection records show culvert at 8/9. The weakest component sits in good condition. No reported major component scores in the Poor range under the current federal condition thresholds.

How LA0686 compares

▼ 0.4
Load rating vs Louisiana average (32.2 t; 12,682 of 12,698 rated)
116
Bridges in St. Martin · 10 in Poor condition

Age against the county: built in 2014, earlier than 11 of St. Martin's 116 bridges with a recorded construction year (9%), against a county median build year of 1972. This is one of the newer structures in its county.

LA0686 31.8 t
Louisiana average (12,682 of 12,698 rated) 32.2 t

Live comparison across Louisiana bridges with a recorded inventory load rating (12,682 of 12,698 rated).

LA0686 vs every rated Louisiana bridge

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

32 Top 58% higher than 42% of 12,682 bridges

rated Louisiana 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

Culvert
8/9
Good (7–9)
Inventory Load Rating
31.8 t
NBI inventory level (metric tons)
Overall Condition
Good

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

St. Martin inventory by recorded NBI category

Exclusive Good/Fair/Poor bands across all 116 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
2014
Material
Concrete
Number of Spans
2
Structure Length
6.9 m (23 ft)
Deck Width
13.4 m (44 ft)
Owner
State Highway Agency
Avg Daily Traffic
3,212 vehicles/day
Structure Number
035000000030437

How to read this record

This page shows what the last federal inspection recorded, not whether LA0686 is safe to cross today. Here is how to use it.

  • NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
  • Learn how the 0–9 condition scale and Good/Fair/Poor categories are defined. How condition ratings work
  • Compare LA0686 against other structures in St. Martin and across Louisiana. Louisiana 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 LA0686?

LA0686 in St. Martin, Louisiana on the FHWA's 0–9 scale.

How often is LA0686 inspected?

LA0686's responsible agency sets its routine interval under FHWA's risk-based inspection rules; this page does not expose the scheduled interval. It carries about 3,212 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. LA0686 is currently shown as Good condition from its component ratings; that category is not a live closure or safety decision.

What is the inventory load rating for LA0686?

LA0686 has an NBI inventory load rating of 31.8 metric tons.

Who is responsible for maintaining LA0686?

LA0686 is owned and maintained by State Highway Agency.

How old is LA0686 and does age affect safety?

LA0686 was built in 2014, making it 12 years old.

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

Share this inspection record

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.