FHWA NBI 2024 Inspection record Public-domain dataset

LA0155

Carrying LA0155 over GRAND BAYOU

2.40 MI EAST OF US 71, Red River, Louisiana

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor

Bridge Snapshot: LA0155

The LA0155 bridge in Red River, Louisiana carries LA0155 over GRAND BAYOU. It was built in 1972, making it 54 years old today. The structure is built primarily of concrete and spans 17 sections, stretching 98.8 meters (324 feet) end to end. Daily traffic averages 1,130 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 a deck rating of 0/9, superstructure at 0/9, substructure at 0/9. The weakest component sits in critical condition. A component scored 4 or below, placing this bridge in the federal Poor condition category rather than declaring it unsafe or closed.

Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.

How LA0155 compares

63
Bridges in Red River · 19 in Poor condition

Live comparison across Louisiana.

Historical Sufficiency Rating

PlainBridge-computed
18.7 / 100 - historical under-20 band
Structural adequacy /55
0.0
Serviceability /30
8.1
Essentiality /15
10.6
Special reductions
0

FHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.

Condition Ratings

Deck
0/9
Failed (0)
Superstructure
0/9
Failed (0)
Substructure
0/9
Failed (0)
Overall Condition
Poor

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

Structural Details

Year Built
1972
Material
Concrete
Number of Spans
17
Structure Length
98.8 m (324 ft)
Deck Width
9.4 m (31 ft)
Owner
State Highway Agency
Avg Daily Traffic
1,130 vehicles/day
Structure Number
044100910102481

Condition Analysis

  • The deck (driving surface) is in critical condition (0/9), with severe deterioration requiring urgent attention.
  • The superstructure (beams and supports above the deck) is in critical condition (0/9), with severe deterioration requiring urgent attention.
  • At 0/9, the substructure (piers and abutments) is in critical shape, with severe wear requiring urgent action.

How to read this record

LA0155 is in the federal Poor condition category. That is a component-based result, not a closure order.

  • NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
  • Understand what Poor condition does and does not mean before drawing conclusions. Poor condition explained
  • Compare LA0155 against other structures in Red River 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 LA0155?

LA0155 in Red River, Louisiana has a deck rating of 0/9, superstructure rating of 0/9, and substructure rating of 0/9 on the FHWA's 0–9 scale.

How often is LA0155 inspected?

LA0155'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 1,130 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. LA0155 is currently shown as Poor condition from its component ratings; that category is not a live closure or safety decision.

What is the inventory load rating for LA0155?

An inventory load rating is not recorded for LA0155.

Who is responsible for maintaining LA0155?

LA0155 is owned and maintained by State Highway Agency.

How old is LA0155 and does age affect safety?

LA0155 was built in 1972, making it 54 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

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.