Upper Mill Creek
Carrying Upper Mill Creek over Lt Fork Troublesome Ck
@ JCT KY-550 near Leburn, Knott, Kentucky
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
Upper Mill Creek in Knott, Kentucky sits above 57% of rated Kentucky bridges on inventory load rating (41 t), while its 2022 build year is earlier than 14% of Knott's recorded-year cohort (134 bridges).
Upper Mill Creek in Knott, Kentucky is rated Good in the FHWA's 2024 National Bridge Inventory. Built in 2022, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 8. The lowest applicable rating sets the federal condition category, so this Good 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 KY:060C00096N
POST-2000 · PRESTRESS · SINGLE-SPAN · TIED-CTRL · LOCAL-ADT · HEAVY-LOAD · CAT-GOOD
- POST-2000 2000+
- PRESTRESS Prestressed concrete
- SINGLE-SPAN Single span
- TIED-CTRL Tied control
- LOCAL-ADT Local ADT
- HEAVY-LOAD Heavy load
- CAT-GOOD Good
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: Upper Mill Creek
The Upper Mill Creek bridge in Knott, Kentucky carries Upper Mill Creek over Lt Fork Troublesome Ck. It was built in 2022, making it 4 years old today. The structure is built primarily of prestressed concrete and spans 1 section, stretching 12.5 meters (41 feet) end to end. Daily traffic averages 622 vehicles, placing it in the lower-traffic tier of Kentucky bridges. It is owned and maintained by County Highway Agency.
The latest FHWA inspection records show a deck rating of 8/9, superstructure at 8/9, substructure at 8/9. The weakest component sits in good condition. None of this bridge's reported major components fall into the Poor condition range.
How Upper Mill Creek compares
Age against the county: built in 2022, earlier than 19 of Knott's 134 bridges with a recorded construction year (14%), against a county median build year of 1979. This is one of the newer structures in its county.
Live comparison across Kentucky bridges with a recorded inventory load rating (14,532 of 14,548 rated).
Upper Mill Creek vs every rated Kentucky bridge
Inventory load rating (metric tons), FHWA NBI, this state
41 Top 43% higher than 57% of 14,532 bridges
rated Kentucky 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.
Knott inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 134 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
- 2022
- Material
- Prestressed Concrete
- Number of Spans
- 1
- Structure Length
- 12.5 m (41 ft)
- Deck Width
- 6.1 m (20 ft)
- Owner
- County Highway Agency
- Avg Daily Traffic
- 622 vehicles/day
- Structure Number
- 060C00096N
Condition Analysis
- • At 8/9, the deck (driving surface) is in good shape and shows no significant wear.
- • At 8/9, the superstructure (beams and supports above the deck) is in good shape and shows no significant wear.
- • The substructure (piers and abutments) is in good condition (8/9), showing no significant deterioration.
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 Upper Mill Creek 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 Upper Mill Creek against other structures in Knott and across Kentucky. Kentucky 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 Upper Mill Creek?
Upper Mill Creek in Knott, Kentucky has a deck rating of 8/9, superstructure rating of 8/9, and substructure rating of 8/9 on the FHWA's 0–9 scale.
How often is Upper Mill Creek inspected?
Upper Mill Creek'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 622 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. Upper Mill Creek 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 Upper Mill Creek?
Upper Mill Creek has an NBI inventory load rating of 40.8 metric tons.
Who is responsible for maintaining Upper Mill Creek?
Upper Mill Creek is owned and maintained by County Highway Agency.
How old is Upper Mill Creek and does age affect safety?
Upper Mill Creek was built in 2022, making it 4 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.