FHWA NBI 2024 Inspection record Public-domain dataset

FDR 502

Carrying FDR 502 over N. FORK MILE CREEK

LOGMI 2.62 FR 426 TO, Winn, Louisiana

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
20 t Inventory load rating

Bridge Snapshot: FDR 502

The FDR 502 bridge in Winn, Louisiana carries FDR 502 over N. FORK MILE CREEK. It was built in 1968, making it 58 years old today. The structure is built primarily of prestressed concrete and spans 3 sections, stretching 14.0 meters (46 feet) end to end. Daily traffic averages 16 vehicles, placing it in the lower-traffic tier of Louisiana bridges. It is owned and maintained by U.S. Forest Service.

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. All reported major components score above the Poor range. Its NBI inventory load rating is 20.4 metric tons.

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

How FDR 502 compares

▼ 11.9
Load rating vs Louisiana average (32.3 t)
Bottom 18%
Lower load rating than 82% of Louisiana bridges
220
Bridges in Winn · 36 in Poor condition
FDR 502 20.4 t
Louisiana average 32.3 t

Live comparison across Louisiana.

Historical Sufficiency Rating

PlainBridge-computed
63.5 / 100 - historical 50–79.9 band
Structural adequacy /55
41.5
Serviceability /30
10.0
Essentiality /15
15.0
Special reductions
−3.0

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 How the historical reference is calculated.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
7/9
Good (7–9)
Superstructure
7/9
Good (7–9)
Substructure
6/9
Fair (5–6)
Inventory Load Rating
20.4 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
1968
Material
Prestressed Concrete
Number of Spans
3
Structure Length
14.0 m (46 ft)
Deck Width
5.0 m (16 ft)
Owner
U.S. Forest Service
Avg Daily Traffic
16 vehicles/day
Structure Number
080604000002405

Condition Analysis

  • The deck (driving surface) is in good condition (7/9), showing no significant deterioration.
  • At 7/9, the superstructure (beams and supports above the deck) is in good shape and shows no significant wear.
  • 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 FDR 502 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 FDR 502 against other structures in Winn 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 FDR 502?

FDR 502 in Winn, 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 FDR 502 inspected?

FDR 502'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 16 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. FDR 502 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 FDR 502?

FDR 502 has an NBI inventory load rating of 20.4 metric tons.

Who is responsible for maintaining FDR 502?

FDR 502 is owned and maintained by U.S. Forest Service.

How old is FDR 502 and does age affect safety?

FDR 502 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.

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.