Adam Guidry Rd
Carrying Adam Guidry Rd over COULEE
0.2 Mi. SW of LA 686, St. Martin, Louisiana
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
Adam Guidry Rd in St. Martin, Louisiana sits above 7% of rated Louisiana bridges on inventory load rating (15 t), while its 1968 build year is earlier than 71% of St. Martin's recorded-year cohort (116 bridges).
Adam Guidry Rd in St. Martin, Louisiana is rated Fair in the FHWA's 2024 National Bridge Inventory. Built in 1968, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 5. The lowest applicable rating sets the federal condition category, so this Fair 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:035030237915451
INTERSTATE-ERA · CONCRETE · MULTI-SPAN · TIED-CTRL · LOCAL-ADT · LIGHT-LOAD · CAT-FAIR
- INTERSTATE-ERA 1950–1979
- CONCRETE Concrete
- MULTI-SPAN 2 spans
- TIED-CTRL Tied control
- LOCAL-ADT Local ADT
- LIGHT-LOAD Light load
- CAT-FAIR Fair
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: Adam Guidry Rd
The Adam Guidry Rd bridge in St. Martin, Louisiana carries Adam Guidry Rd over COULEE. It was built in 1968, making it 58 years old today. The structure is built primarily of concrete and spans 2 sections, stretching 11.6 meters (38 feet) end to end. Daily traffic averages 160 vehicles, placing it in the lower-traffic tier of Louisiana bridges. It is owned and maintained by County Highway Agency.
The latest FHWA inspection records show a deck rating of 5/9, superstructure at 5/9, substructure at 5/9. The weakest component sits in fair condition. None of this bridge's reported major components fall into the Poor condition range.
How Adam Guidry Rd compares
Age against the county: built in 1968, earlier than 82 of St. Martin's 116 bridges with a recorded construction year (71%), against a county median build year of 1972. Age is not a defect on its own, but it is the population from which future Poor ratings are drawn.
Live comparison across Louisiana bridges with a recorded inventory load rating (12,682 of 12,698 rated).
Adam Guidry Rd vs every rated Louisiana bridge
Inventory load rating (metric tons), FHWA NBI, this state
15 Top 93% higher than 7% 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
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.
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
- 1968
- Material
- Concrete
- Number of Spans
- 2
- Structure Length
- 11.6 m (38 ft)
- Deck Width
- 8.0 m (26 ft)
- Owner
- County Highway Agency
- Avg Daily Traffic
- 160 vehicles/day
- Structure Number
- 035030237915451
Condition Analysis
- • At 5/9, the deck (driving surface) shows fair condition, with minor wear flagged for upkeep.
- • The superstructure (beams and supports above the deck) rates fair at 5/9, minor deterioration that routine maintenance should address.
- • At 5/9, the substructure (piers and abutments) shows fair condition, with minor wear flagged for upkeep.
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
This page shows what the last federal inspection recorded, not whether Adam Guidry Rd 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 Adam Guidry Rd 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 Adam Guidry Rd?
Adam Guidry Rd in St. Martin, Louisiana has a deck rating of 5/9, superstructure rating of 5/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.
How often is Adam Guidry Rd inspected?
Adam Guidry Rd'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 160 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. Adam Guidry Rd is currently shown as Fair condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for Adam Guidry Rd?
Adam Guidry Rd has an NBI inventory load rating of 15.2 metric tons.
Who is responsible for maintaining Adam Guidry Rd?
Adam Guidry Rd is owned and maintained by County Highway Agency.
How old is Adam Guidry Rd and does age affect safety?
Adam Guidry Rd was built in 1968, making it 58 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.
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.
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.