I640 RMP C-C
Carrying I640 RMP C-C over I640-WB FLYOVER / 4 RTS
SHARPS GAP EXCHANGE, Knox, Tennessee
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
I640 RMP C-C in Knox, Tennessee sits above 98% of rated Tennessee bridges on inventory load rating (45 t), while its 1981 build year is earlier than 37% of Knox's recorded-year cohort (588 bridges).
I640 RMP C-C in Knox, Tennessee is rated Fair in the FHWA's 2024 National Bridge Inventory. Built in 1981, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 6. The lowest applicable rating sets the federal condition category, so this Fair result describes the weakest reported component rather than the structure as a whole. No NBI category is a closure decision or a live crossing-safety verdict.
NBI record plate
Structure TN:47I00750057
LATE-CENTURY · STEEL · LONG-SPAN-RUN · TIED-CTRL · HEAVY-ADT · HEAVY-LOAD · CAT-FAIR
- LATE-CENTURY 1980–1999
- STEEL Steel
- LONG-SPAN-RUN 10 spans
- TIED-CTRL Tied control
- HEAVY-ADT Heavy ADT
- HEAVY-LOAD Heavy load
- CAT-FAIR Fair
Inspection-sheet codes from this record’s year, material family, spans, controlling component, ADT, inventory load, and NBI category, not a live closure verdict.
Bridge Snapshot: I640 RMP C-C
The I640 RMP C-C bridge in Knox, Tennessee carries I640 RMP C-C over I640-WB FLYOVER / 4 RTS. It was built in 1981, making it 45 years old today. The structure is built primarily of steel continuous and spans 10 sections, stretching 289.4 meters (950 feet) end to end. Daily traffic averages 89,826 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 6/9, superstructure at 6/9, substructure at 6/9. The weakest component sits in fair condition. No reported major component scores in the Poor range under the current federal condition thresholds.
How I640 RMP C-C compares
Age against the county: built in 1981, earlier than 217 of Knox's 588 bridges with a recorded construction year (37%), against a county median build year of 1973. This is one of the newer structures in its county.
Live comparison across Tennessee bridges with a recorded inventory load rating (20,355 of 20,379 rated).
I640 RMP C-C vs every rated Tennessee bridge
Inventory load rating (metric tons), FHWA NBI, this state
45 Top 2% higher than 98% of 20,355 bridges
rated Tennessee bridges, bucketed by value
Each bar is a band; taller bars hold more bridges. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source FHWA National Bridge Inventory · August 2026
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Reported 0–9 component ratings from the FHWA NBI. The highlighted component is the lowest reported input to this record’s current condition category; it is not a closure or live crossing-safety decision.
Knox inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 588 bridges in this county. Orthogonal to this structure's component profile above: a county catalog share, not a live crossing-safety verdict.
Structural Details
- Year Built
- 1981
- Material
- Steel Continuous
- Number of Spans
- 10
- Structure Length
- 289.4 m (950 ft)
- Deck Width
- 9.8 m (32 ft)
- Owner
- State Highway Agency
- Avg Daily Traffic
- 89,826 vehicles/day
- Structure Number
- 47I00750057
Condition Analysis
- • At 6/9, the deck (driving surface) shows fair condition, with minor wear flagged for upkeep.
- • At 6/9, the superstructure (beams and supports above the deck) shows fair condition, with minor wear flagged for upkeep.
- • At 6/9, the substructure (piers and abutments) shows fair condition, with minor wear flagged for upkeep.
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
This page shows what the last federal inspection recorded, not whether I640 RMP C-C 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 I640 RMP C-C 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 I640 RMP C-C?
I640 RMP C-C in Knox, Tennessee has a deck rating of 6/9, superstructure rating of 6/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.
How often is I640 RMP C-C inspected?
I640 RMP C-C'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 89,826 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. I640 RMP C-C 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 I640 RMP C-C?
I640 RMP C-C has an NBI inventory load rating of 45.0 metric tons.
Who is responsible for maintaining I640 RMP C-C?
I640 RMP C-C is owned and maintained by State Highway Agency.
How old is I640 RMP C-C and does age affect safety?
I640 RMP C-C was built in 1981, making it 45 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.
Share this inspection record
Send this source-bounded record or download its data card. An NBI condition category is not a closure or live crossing-safety verdict.
Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Component ratings, ADT, and condition category on this page are copied from the NBI record for this structure; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.