FHWA NBI 2024 Inspection record Public-domain dataset

FAU 3580

Carrying FAU 3580 over FAU 3580 SHALLOWFORD RD

NEAR CHATTANOOGA TENN., Hamilton, Tennessee

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Unknown

Bridge Snapshot: FAU 3580

The FAU 3580 bridge in Hamilton, Tennessee carries FAU 3580 over FAU 3580 SHALLOWFORD RD. It was built in 1959, making it 67 years old today. The structure is built primarily of prestressed concrete continuous. Daily traffic averages 99,576 vehicles, placing it in the heavily-trafficked tier of Tennessee bridges.

The latest FHWA inspection records show limited component ratings on file. The weakest component sits in unrated condition. No reported major component scores in the Poor range under the current federal condition thresholds.

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

How FAU 3580 compares

464
Bridges in Hamilton · 23 in Poor condition

Live comparison across Tennessee.

Historical Sufficiency Rating

PlainBridge-computed
86.6 / 100 - historical 80–100 band
Structural adequacy /55
51.1
Serviceability /30
22.5
Essentiality /15
15.0
Special reductions
−2.0

FHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.

Condition Ratings

Overall Condition
Unrated

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

Structural Details

Year Built
1959
Material
Prestressed Concrete Continuous
Avg Daily Traffic
99,576 vehicles/day
Structure Number
33I00750049

How to read this record

This page shows what the last federal inspection recorded, not whether FAU 3580 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 3580 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 FAU 3580?

FAU 3580 in Hamilton, Tennessee on the FHWA's 0–9 scale.

How often is FAU 3580 inspected?

FAU 3580'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 99,576 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. FAU 3580 is currently shown as unrated condition from its component ratings; that category is not a live closure or safety decision.

What is the inventory load rating for FAU 3580?

An inventory load rating is not recorded for FAU 3580.

Who is responsible for maintaining FAU 3580?

Ownership is not specified for FAU 3580 in the NBI.

How old is FAU 3580 and does age affect safety?

FAU 3580 was built in 1959, making it 67 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.