FHWA NBI 2024 Inspection record Public-domain dataset

Polk Brannon Road

Carrying Polk Brannon Road over UNNAMED CREEK

4 MI.N.W.LA 10,LA 421 JCT, West Feliciana, Louisiana

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
16 t Inventory load rating

Bridge Snapshot: Polk Brannon Road

The Polk Brannon Road bridge in West Feliciana, Louisiana carries Polk Brannon Road over UNNAMED CREEK. It was built in 1984, making it 42 years old today. The structure is built primarily of wood or timber and spans 3 sections, stretching 17.4 meters (57 feet) end to end. Daily traffic averages 40 vehicles, placing it in the lower-traffic tier of Louisiana bridges. It is owned and maintained by County Highway Agency.

The latest FHWA inspection records show a deck rating of 8/9, superstructure at 8/9, substructure at 5/9. The weakest component sits in fair condition. None of this bridge's reported major components fall into the Poor condition range. Its NBI inventory load rating is 16.3 metric tons.

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

How Polk Brannon Road compares

▼ 16.0
Load rating vs Louisiana average (32.3 t)
Bottom 9%
Lower load rating than 91% of Louisiana bridges
108
Bridges in West Feliciana · 21 in Poor condition
Polk Brannon Road 16.3 t
Louisiana average 32.3 t

Live comparison across Louisiana.

Historical Sufficiency Rating

PlainBridge-computed
52.4 / 100 - historical 50–79.9 band
Structural adequacy /55
24.0
Serviceability /30
22.0
Essentiality /15
14.4
Special reductions
−8.0

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 How the historical reference is calculated.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
8/9
Good (7–9)
Superstructure
8/9
Good (7–9)
Substructure
5/9
Fair (5–6)
Inventory Load Rating
16.3 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
1984
Material
Wood or Timber
Number of Spans
3
Structure Length
17.4 m (57 ft)
Deck Width
5.5 m (18 ft)
Owner
County Highway Agency
Avg Daily Traffic
40 vehicles/day
Structure Number
616330531911671

Condition Analysis

  • The deck (driving surface) rates good at 8/9, with no significant deterioration on file.
  • The superstructure (beams and supports above the deck) is in good condition (8/9), showing no significant deterioration.
  • The substructure (piers and abutments) is in fair condition (5/9), with minor deterioration that may require routine maintenance.

How to read this record

This page shows what the last federal inspection recorded, not whether Polk Brannon Road 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 Polk Brannon Road against other structures in West Feliciana 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 Polk Brannon Road?

Polk Brannon Road in West Feliciana, Louisiana has a deck rating of 8/9, superstructure rating of 8/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.

How often is Polk Brannon Road inspected?

Polk Brannon Road'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 40 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. Polk Brannon Road 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 Polk Brannon Road?

Polk Brannon Road has an NBI inventory load rating of 16.3 metric tons.

Who is responsible for maintaining Polk Brannon Road?

Polk Brannon Road is owned and maintained by County Highway Agency.

How old is Polk Brannon Road and does age affect safety?

Polk Brannon Road was built in 1984, making it 42 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.