I275
Carrying I275 over I275 / SOUTHERN RR.
IN KNOXVILLE - S OF I640, Knox, Tennessee
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: I275
The I275 bridge in Knox, Tennessee carries I275 over I275 / SOUTHERN RR.. It was built in 1989, making it 37 years old today. The structure is built primarily of prestressed concrete and spans 3 sections, stretching 81.0 meters (266 feet) end to end. Daily traffic averages 60,703 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 6/9, substructure 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 32.4 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How I275 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 How the historical reference is calculated.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
- 1989
- Material
- Prestressed Concrete
- Number of Spans
- 3
- Structure Length
- 81.0 m (266 ft)
- Deck Width
- 36.6 m (120 ft)
- Owner
- State Highway Agency
- Avg Daily Traffic
- 60,703 vehicles/day
- Structure Number
- 47I02750027
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • At 7/9, the deck (driving surface) is in good shape and shows no significant wear.
- • The superstructure (beams and supports above the deck) rates fair at 6/9, minor deterioration that routine maintenance should address.
- • The substructure (piers and abutments) rates fair at 6/9, minor deterioration that routine maintenance should address.
How to read this record
This page shows what the last federal inspection recorded, not whether I275 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 I275 against other structures in Knox 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 I275?
I275 in Knox, Tennessee has a deck rating of 7/9, superstructure rating of 6/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.
How often is I275 inspected?
I275'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 60,703 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. I275 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 I275?
I275 has an NBI inventory load rating of 32.4 metric tons.
Who is responsible for maintaining I275?
I275 is owned and maintained by State Highway Agency.
How old is I275 and does age affect safety?
I275 was built in 1989, making it 37 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.