FHWA NBI 2024 Inspection record Public-domain dataset

I0020

Carrying I0020 over TENSAS-RIVER

6.3 MI EAST OF LA 577, Madison, Louisiana

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
38 t Inventory load rating

Bridge Snapshot: I0020

The I0020 bridge in Madison, Louisiana carries I0020 over TENSAS-RIVER. It was built in 1975, making it 51 years old today. The structure is built primarily of prestressed concrete and spans 5 sections, stretching 92.0 meters (302 feet) end to end. Daily traffic averages 31,481 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 7/9, substructure at 6/9. The weakest component sits in fair condition. All reported major components score above the Poor range. Its NBI inventory load rating is 38.1 metric tons.

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

How I0020 compares

▲ 5.8
Load rating vs Louisiana average (32.3 t)
Top 29%
Higher load rating than 71% of Louisiana bridges
104
Bridges in Madison · 7 in Poor condition
I0020 38.1 t
Louisiana average 32.3 t

Live comparison across Louisiana.

Historical Sufficiency Rating

PlainBridge-computed
85.0 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
30.0
Essentiality /15
0.0
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 How the historical reference is calculated.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
6/9
Fair (5–6)
Superstructure
7/9
Good (7–9)
Substructure
6/9
Fair (5–6)
Inventory Load Rating
38.1 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
1975
Material
Prestressed Concrete
Number of Spans
5
Structure Length
92.0 m (302 ft)
Deck Width
13.0 m (43 ft)
Owner
State Highway Agency
Avg Daily Traffic
31,481 vehicles/day
Structure Number
053304510808932

Condition Analysis

  • The deck (driving surface) is in fair condition (6/9), with minor deterioration that may require routine maintenance.
  • The superstructure (beams and supports above the deck) is in good condition (7/9), showing no significant deterioration.
  • The substructure (piers and abutments) is in fair condition (6/9), with minor deterioration that may require routine maintenance.

How to read this record

This page shows what the last federal inspection recorded, not whether I0020 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 I0020 against other structures in Madison 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 I0020?

I0020 in Madison, Louisiana has a deck rating of 6/9, superstructure rating of 7/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.

How often is I0020 inspected?

I0020'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 31,481 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. I0020 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 I0020?

I0020 has an NBI inventory load rating of 38.1 metric tons.

Who is responsible for maintaining I0020?

I0020 is owned and maintained by State Highway Agency.

How old is I0020 and does age affect safety?

I0020 was built in 1975, making it 51 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.