FHWA NBI 2024 Inspection record Public-domain dataset

FAP 6 350615G

Carrying FAP 6 350615G over CSX RAILROAD

3 M N JCT SR6&SR248, Williamson, Tennessee

Inventory: FHWA NBI 2024 · last ETL August 2026

FHWA NBI record, refreshed with each annual release.

Poor
21 t Inventory load rating Lower than 92% of rated Tennessee bridges

FAP 6 350615G in Williamson, Tennessee sits above 8% of rated Tennessee bridges on inventory load rating (21 t), while its 1930 build year is earlier than 97% of Williamson's recorded-year cohort (520 bridges).

FAP 6 350615G in Williamson, Tennessee is rated Poor in the FHWA's 2024 National Bridge Inventory. Built in 1930, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 4. The lowest applicable rating sets the federal condition category, so this Poor result describes the weakest reported component rather than the structure as a whole. No NBI category is a closure decision or a live crossing-safety verdict.

NBI record plate

Structure TN:94SR0060009

PRE-1950 · CONCRETE · LONG-SPAN-RUN · TIED-CTRL · HEAVY-ADT · STANDARD-LOAD · CAT-POOR

  • PRE-1950 Pre-1950
  • CONCRETE Concrete
  • LONG-SPAN-RUN 5 spans
  • TIED-CTRL Tied control
  • HEAVY-ADT Heavy ADT
  • STANDARD-LOAD Standard load
  • CAT-POOR Poor

Inspection-sheet codes from this record’s year, material family, spans, controlling component, ADT, inventory load, and NBI category, not a live closure verdict.

Bridge Snapshot: FAP 6 350615G

The FAP 6 350615G bridge in Williamson, Tennessee carries FAP 6 350615G over CSX RAILROAD. It was built in 1930, making it 96 years old today. The structure is built primarily of concrete and spans 5 sections, stretching 58.2 meters (191 feet) end to end. Daily traffic averages 14,336 vehicles, placing it in the heavily-trafficked tier of Tennessee bridges. It is owned and maintained by State Highway Agency.

The latest FHWA inspection records show a deck rating of 6/9, superstructure at 4/9, substructure at 4/9. The weakest component sits in poor condition. A component scored 4 or below, placing this bridge in the federal Poor condition category rather than declaring it unsafe or closed.

How FAP 6 350615G compares

▼ 8.8
Load rating vs Tennessee average (29.5 t; 20,355 of 20,379 rated)
520
Bridges in Williamson · 18 in Poor condition

Age against the county: built in 1930, earlier than 504 of Williamson's 520 bridges with a recorded construction year (97%), against a county median build year of 1989. Age is not a defect on its own, but it is the population from which future Poor ratings are drawn.

FAP 6 350615G 20.7 t
Tennessee average (20,355 of 20,379 rated) 29.5 t

Live comparison across Tennessee bridges with a recorded inventory load rating (20,355 of 20,379 rated).

FAP 6 350615G vs every rated Tennessee bridge

Inventory load rating (metric tons), FHWA NBI, this state

21 Top 92% higher than 8% of 20,355 bridges

rated Tennessee bridges, bucketed by value

Each bar is a band; taller bars hold more bridges. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source FHWA National Bridge Inventory · August 2026

Condition Ratings

Deck
6/9
Fair (5–6)
Superstructure
4/9
Poor (1–4)
Substructure
4/9
Poor (1–4)
Inventory Load Rating
20.7 t
NBI inventory level (metric tons)
Overall Condition
Poor

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

Reported 0–9 component ratings from the FHWA NBI. The highlighted component is the lowest reported input to this record’s current condition category; it is not a closure or live crossing-safety decision.

Williamson inventory by recorded NBI category

Exclusive Good/Fair/Poor bands across all 520 bridges in this county. Orthogonal to this structure's component profile above: a county catalog share, not a live crossing-safety verdict.

Structural Details

Year Built
1930
Material
Concrete
Number of Spans
5
Structure Length
58.2 m (191 ft)
Deck Width
10.1 m (33 ft)
Owner
State Highway Agency
Avg Daily Traffic
14,336 vehicles/day
Structure Number
94SR0060009

Condition Analysis

  • The deck (driving surface) rates fair at 6/9, minor deterioration that routine maintenance should address.
  • The superstructure (beams and supports above the deck) is in poor condition (4/9), showing advanced deterioration on the inspecting agency's 0-9 scale.
  • At 4/9, the substructure (piers and abutments) is in poor shape, with advanced wear on file for this vintage.

How to read this record

FAP 6 350615G 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 FAP 6 350615G against other structures in Williamson and across Tennessee. Tennessee 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 FAP 6 350615G?

FAP 6 350615G in Williamson, Tennessee has a deck rating of 6/9, superstructure rating of 4/9, and substructure rating of 4/9 on the FHWA's 0–9 scale.

How often is FAP 6 350615G inspected?

FAP 6 350615G'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 14,336 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. FAP 6 350615G 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 FAP 6 350615G?

FAP 6 350615G has an NBI inventory load rating of 20.7 metric tons.

Who is responsible for maintaining FAP 6 350615G?

FAP 6 350615G is owned and maintained by State Highway Agency.

How old is FAP 6 350615G and does age affect safety?

FAP 6 350615G was built in 1930, making it 96 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

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Send this source-bounded record or download its data card. An NBI condition category is not a closure or live crossing-safety verdict.

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Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Component ratings, ADT, and condition category on this page are copied from the NBI record for this structure; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.