David Duboin Rd
Carrying David Duboin Rd over Commercial Canal
2.1 Mi. E. of La 329, Iberia, Louisiana
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: David Duboin Rd
The David Duboin Rd bridge in Iberia, Louisiana carries David Duboin Rd over Commercial Canal. It was built in 2013, making it 13 years old today. The structure is built primarily of concrete and spans 4 sections, stretching 24.4 meters (80 feet) end to end. Daily traffic averages 1,184 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 7/9. The weakest component sits in good condition. No reported major component scores in the Poor range under the current federal condition thresholds. Its NBI inventory load rating is 42.4 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How David Duboin Rd 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 How the historical reference is calculated.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
- 2013
- Material
- Concrete
- Number of Spans
- 4
- Structure Length
- 24.4 m (80 ft)
- Deck Width
- 10.5 m (34 ft)
- Owner
- County Highway Agency
- Avg Daily Traffic
- 1,184 vehicles/day
- Structure Number
- 032300000200736
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • The deck (driving surface) rates good at 7/9, with no significant deterioration on file.
- • At 7/9, the superstructure (beams and supports above the deck) is in good shape and shows no significant wear.
- • At 7/9, the substructure (piers and abutments) is in good shape and shows no significant wear.
How to read this record
This page shows what the last federal inspection recorded, not whether David Duboin 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 David Duboin Rd against other structures in Iberia 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 David Duboin Rd?
David Duboin Rd in Iberia, Louisiana has a deck rating of 7/9, superstructure rating of 7/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.
How often is David Duboin Rd inspected?
David Duboin 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 1,184 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. David Duboin Rd 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 David Duboin Rd?
David Duboin Rd has an NBI inventory load rating of 42.4 metric tons.
Who is responsible for maintaining David Duboin Rd?
David Duboin Rd is owned and maintained by County Highway Agency.
How old is David Duboin Rd and does age affect safety?
David Duboin Rd was built in 2013, making it 13 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.