FHWA NBI 2024 Inspection record Public-domain dataset

NFA B233

Carrying NFA B233 over BRANCH

IN CITY OF CHATTANOOGA, Hamilton, Tennessee

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
24 t Inventory load rating

Bridge Snapshot: NFA B233

The NFA B233 bridge in Hamilton, Tennessee carries NFA B233 over BRANCH. It was built in 1925, making it 101 years old today. The structure is built primarily of concrete continuous and spans 2 sections, stretching 6.4 meters (21 feet) end to end. Daily traffic averages 230 vehicles, placing it in the lower-traffic tier of Tennessee bridges. It is owned and maintained by City/Municipal Highway Agency.

The latest FHWA inspection records show culvert at 6/9. 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 24.3 metric tons.

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

How NFA B233 compares

▼ 5.2
Load rating vs Tennessee average (29.5 t)
Bottom 14%
Lower load rating than 86% of Tennessee bridges
464
Bridges in Hamilton · 23 in Poor condition
NFA B233 24.3 t
Tennessee average 29.5 t

Live comparison across Tennessee.

Historical Sufficiency Rating

PlainBridge-computed
73.0 / 100 - historical 50–79.9 band
Structural adequacy /55
47.5
Serviceability /30
13.5
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 How the historical reference is calculated.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

Culvert
6/9
Fair (5–6)
Inventory Load Rating
24.3 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
1925
Material
Concrete Continuous
Number of Spans
2
Structure Length
6.4 m (21 ft)
Deck Width
4.9 m (16 ft)
Owner
City/Municipal Highway Agency
Avg Daily Traffic
230 vehicles/day
Structure Number
330B2330001

How to read this record

This page shows what the last federal inspection recorded, not whether NFA B233 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 NFA B233 against other structures in Hamilton 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 NFA B233?

NFA B233 in Hamilton, Tennessee on the FHWA's 0–9 scale.

How often is NFA B233 inspected?

NFA B233'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 230 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. NFA B233 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 NFA B233?

NFA B233 has an NBI inventory load rating of 24.3 metric tons.

Who is responsible for maintaining NFA B233?

NFA B233 is owned and maintained by City/Municipal Highway Agency.

How old is NFA B233 and does age affect safety?

NFA B233 was built in 1925, making it 101 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.