FHWA NBI 2024 Inspection record Public-domain dataset

I24 WBL

Carrying I24 WBL over I24 WB / CSX RR

.1 MI EAST OF I124, Hamilton, Tennessee

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
54 t Inventory load rating

Bridge Snapshot: I24 WBL

The I24 WBL bridge in Hamilton, Tennessee carries I24 WBL over I24 WB / CSX RR. It was built in 1990, making it 36 years old today. The structure is built primarily of steel continuous and spans 3 sections, stretching 92.0 meters (302 feet) end to end. Daily traffic averages 69,132 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 7/9, superstructure at 7/9, substructure at 7/9. The weakest component sits in good condition. None of this bridge's reported major components fall into the Poor condition range. Its NBI inventory load rating is 54.1 metric tons.

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

How I24 WBL compares

▲ 24.6
Load rating vs Tennessee average (29.5 t)
Top 1%
Higher load rating than 99% of Tennessee bridges
464
Bridges in Hamilton · 23 in Poor condition
I24 WBL 54.1 t
Tennessee average 29.5 t

Live comparison across Tennessee.

Historical Sufficiency Rating

PlainBridge-computed
94.8 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
30.0
Essentiality /15
9.8
Special reductions
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 How the historical reference is calculated.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
7/9
Good (7–9)
Inventory Load Rating
54.1 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
1990
Material
Steel Continuous
Number of Spans
3
Structure Length
92.0 m (302 ft)
Deck Width
14.6 m (48 ft)
Owner
State Highway Agency
Avg Daily Traffic
69,132 vehicles/day
Structure Number
33I00240014

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 7/9, the substructure (piers and abutments) is in good shape and shows no significant wear.

How to read this record

This page shows what the last federal inspection recorded, not whether I24 WBL 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 I24 WBL 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 I24 WBL?

I24 WBL in Hamilton, Tennessee has a deck rating of 7/9, superstructure rating of 7/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.

How often is I24 WBL inspected?

I24 WBL'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 69,132 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. I24 WBL 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 I24 WBL?

I24 WBL has an NBI inventory load rating of 54.1 metric tons.

Who is responsible for maintaining I24 WBL?

I24 WBL is owned and maintained by State Highway Agency.

How old is I24 WBL and does age affect safety?

I24 WBL was built in 1990, making it 36 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.