I0055
Carrying I0055 over YELLOW WATER RIVER
I0055, Tangipahoa, Louisiana
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: I0055
The I0055 bridge in Tangipahoa, Louisiana carries I0055 over YELLOW WATER RIVER. It was built in 1968, making it 58 years old today. The structure is built primarily of prestressed concrete and spans 4 sections, stretching 73.8 meters (242 feet) end to end. Daily traffic averages 21,736 vehicles, placing it in the heavily-trafficked tier of Louisiana bridges. It is owned and maintained by State Highway Agency.
The latest FHWA inspection records show a deck rating of 6/9, superstructure at 8/9, substructure at 7/9. The weakest component sits in fair condition. No reported major component scores in the Poor range under the current federal condition thresholds. Its NBI inventory load rating is 45.4 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How I0055 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 How the historical reference is calculated.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
- 1968
- Material
- Prestressed Concrete
- Number of Spans
- 4
- Structure Length
- 73.8 m (242 ft)
- Deck Width
- 10.2 m (33 ft)
- Owner
- State Highway Agency
- Avg Daily Traffic
- 21,736 vehicles/day
- Structure Number
- 625304529017192
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • At 6/9, the deck (driving surface) shows fair condition, with minor wear flagged for upkeep.
- • At 8/9, 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 I0055 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 I0055 against other structures in Tangipahoa 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 I0055?
I0055 in Tangipahoa, Louisiana has a deck rating of 6/9, superstructure rating of 8/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.
How often is I0055 inspected?
I0055'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 21,736 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. I0055 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 I0055?
I0055 has an NBI inventory load rating of 45.4 metric tons.
Who is responsible for maintaining I0055?
I0055 is owned and maintained by State Highway Agency.
How old is I0055 and does age affect safety?
I0055 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.
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.