THERIOT VOISIN BR
Carrying THERIOT VOISIN BR over DU LARGE BAYOU
0001 LOG MI FROM IN, Terrebonne, Louisiana
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: THERIOT VOISIN BR
The THERIOT VOISIN BR bridge in Terrebonne, Louisiana carries THERIOT VOISIN BR over DU LARGE BAYOU. It was built in 2011, making it 15 years old today. The structure is built primarily of steel and spans 4 sections, stretching 27.1 meters (89 feet) end to end. Daily traffic averages 1,156 vehicles, placing it in the moderately-trafficked tier of Louisiana bridges. It is owned and maintained by County Highway Agency.
The latest FHWA inspection records show a deck rating of 7/9, superstructure at 7/9, substructure at 6/9. The weakest component sits in fair condition. None of this bridge's reported major components fall into the Poor condition range. Its NBI inventory load rating is 28.2 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How THERIOT VOISIN BR compares
Live comparison across Louisiana.
Historical Sufficiency Rating
PlainBridge-computedFHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Structural Details
- Year Built
- 2011
- Material
- Steel
- Number of Spans
- 4
- Structure Length
- 27.1 m (89 ft)
- Deck Width
- 6.8 m (22 ft)
- Owner
- County Highway Agency
- Avg Daily Traffic
- 1,156 vehicles/day
- Structure Number
- 025529248904681
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • At 7/9, the deck (driving surface) is in good shape and shows no significant wear.
- • The superstructure (beams and supports above the deck) rates good at 7/9, with no significant deterioration on file.
- • At 6/9, the substructure (piers and abutments) shows fair condition, with minor wear flagged for upkeep.
How to read this record
This page shows what the last federal inspection recorded, not whether THERIOT VOISIN BR 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 THERIOT VOISIN BR against other structures in Terrebonne 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 THERIOT VOISIN BR?
THERIOT VOISIN BR in Terrebonne, Louisiana has a deck rating of 7/9, superstructure rating of 7/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.
How often is THERIOT VOISIN BR inspected?
THERIOT VOISIN BR'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 1,156 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. THERIOT VOISIN BR 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 THERIOT VOISIN BR?
THERIOT VOISIN BR has an NBI inventory load rating of 28.2 metric tons.
Who is responsible for maintaining THERIOT VOISIN BR?
THERIOT VOISIN BR is owned and maintained by County Highway Agency.
How old is THERIOT VOISIN BR and does age affect safety?
THERIOT VOISIN BR was built in 2011, making it 15 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.
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.