FAU 3946 343812D
Carrying FAU 3946 343812D over CSX RAILROAD
IN HENDERSONVILLE, Sumner, Tennessee
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: FAU 3946 343812D
The FAU 3946 343812D bridge in Sumner, Tennessee carries FAU 3946 343812D over CSX RAILROAD. It was built in 1996, making it 30 years old today. The structure is built primarily of prestressed concrete and spans 1 section, stretching 34.7 meters (114 feet) end to end. Daily traffic averages 9,260 vehicles, placing it in the moderately-trafficked tier of Tennessee bridges. It is owned and maintained by City/Municipal Highway Agency.
The latest FHWA inspection records show a deck rating of 7/9, superstructure at 8/9, substructure at 8/9. The weakest component sits in good condition. All reported major components score above the Poor range. Its NBI inventory load rating is 32.4 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How FAU 3946 343812D compares
Live comparison across Tennessee.
Historical Sufficiency Rating
PlainBridge-computedFHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Structural Details
- Year Built
- 1996
- Material
- Prestressed Concrete
- Number of Spans
- 1
- Structure Length
- 34.7 m (114 ft)
- Deck Width
- 12.8 m (42 ft)
- Owner
- City/Municipal Highway Agency
- Avg Daily Traffic
- 9,260 vehicles/day
- Structure Number
- 83M39410001
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • The deck (driving surface) is in good condition (7/9), showing no significant deterioration.
- • The superstructure (beams and supports above the deck) is in good condition (8/9), showing no significant deterioration.
- • The substructure (piers and abutments) rates good at 8/9, with no significant deterioration on file.
How to read this record
This page shows what the last federal inspection recorded, not whether FAU 3946 343812D 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 FAU 3946 343812D against other structures in Sumner 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 FAU 3946 343812D?
FAU 3946 343812D in Sumner, Tennessee has a deck rating of 7/9, superstructure rating of 8/9, and substructure rating of 8/9 on the FHWA's 0–9 scale.
How often is FAU 3946 343812D inspected?
FAU 3946 343812D'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 9,260 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. FAU 3946 343812D is currently shown as Good condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for FAU 3946 343812D?
FAU 3946 343812D has an NBI inventory load rating of 32.4 metric tons.
Who is responsible for maintaining FAU 3946 343812D?
FAU 3946 343812D is owned and maintained by City/Municipal Highway Agency.
How old is FAU 3946 343812D and does age affect safety?
FAU 3946 343812D was built in 1996, making it 30 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.
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.