KY-678
Carrying KY-678 over BOYD CREEK
3.5 MI W. OF JCT KY 63, Monroe, Kentucky
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
KY-678 in Monroe, Kentucky sits above 49% of rated Kentucky bridges on inventory load rating (40 t), while its 1962 build year is earlier than 41% of Monroe's recorded-year cohort (70 bridges).
KY-678 in Monroe, Kentucky is rated Fair in the FHWA's 2024 National Bridge Inventory. Built in 1962, it carries 1 rated component 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 KY:086B00018N
INTERSTATE-ERA · CONCRETE · MULTI-SPAN · CULVERT-LED · LOCAL-ADT · STANDARD-LOAD · CAT-FAIR
- INTERSTATE-ERA 1950–1979
- CONCRETE Concrete
- MULTI-SPAN 2 spans
- CULVERT-LED Culvert-led
- LOCAL-ADT Local ADT
- STANDARD-LOAD Standard 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: KY-678
The KY-678 bridge in Monroe, Kentucky carries KY-678 over BOYD CREEK. It was built in 1962, making it 64 years old today. The structure is built primarily of concrete and spans 2 sections, stretching 9.3 meters (31 feet) end to end. Daily traffic averages 214 vehicles, placing it in the lower-traffic tier of Kentucky bridges. It is owned and maintained by State Highway Agency.
The latest FHWA inspection records show culvert 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 KY-678 compares
Age against the county: built in 1962, earlier than 29 of Monroe's 70 bridges with a recorded construction year (41%), against a county median build year of 1952. 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).
KY-678 vs every rated Kentucky bridge
Inventory load rating (metric tons), FHWA NBI, this state
40 Top 51% higher than 49% 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.
Monroe inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 70 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
- 1962
- Material
- Concrete
- Number of Spans
- 2
- Structure Length
- 9.3 m (31 ft) 0
- Owner
- State Highway Agency
- Avg Daily Traffic
- 214 vehicles/day
- Structure Number
- 086B00018N
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 KY-678 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 KY-678 against other structures in Monroe 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 KY-678?
KY-678 in Monroe, Kentucky on the FHWA's 0–9 scale.
How often is KY-678 inspected?
KY-678'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 214 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. KY-678 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 KY-678?
KY-678 has an NBI inventory load rating of 39.9 metric tons.
Who is responsible for maintaining KY-678?
KY-678 is owned and maintained by State Highway Agency.
How old is KY-678 and does age affect safety?
KY-678 was built in 1962, making it 64 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.