FHWA NBI 2024 Inspection record Public-domain dataset

KY-559

Carrying KY-559 over DUNAWAY BRANCH

.05 MI SOU. OF JCT KY 344, Lewis, Kentucky

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
33 t Inventory load rating

Bridge Snapshot: KY-559

The KY-559 bridge in Lewis, Kentucky carries KY-559 over DUNAWAY BRANCH. It was built in 1968, making it 58 years old today. The structure is built primarily of concrete and spans 2 sections, stretching 11.3 meters (37 feet) end to end. Daily traffic averages 177 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. Its NBI inventory load rating is 32.5 metric tons.

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

How KY-559 compares

▼ 6.7
Load rating vs Kentucky average (39.2 t)
Bottom 30%
Lower load rating than 70% of Kentucky bridges
149
Bridges in Lewis · 6 in Poor condition
KY-559 32.5 t
Kentucky average 39.2 t

Live comparison across Kentucky.

Historical Sufficiency Rating

PlainBridge-computed
95.7 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
26.0
Essentiality /15
14.7
Special reductions
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 How the historical reference is calculated.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

Culvert
6/9
Fair (5–6)
Inventory Load Rating
32.5 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
1968
Material
Concrete
Number of Spans
2
Structure Length
11.3 m (37 ft)
Deck Width
8.5 m (28 ft)
Owner
State Highway Agency
Avg Daily Traffic
177 vehicles/day
Structure Number
068B00064N

How to read this record

This page shows what the last federal inspection recorded, not whether KY-559 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-559 against other structures in Lewis 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-559?

KY-559 in Lewis, Kentucky on the FHWA's 0–9 scale.

How often is KY-559 inspected?

KY-559'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 177 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. KY-559 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-559?

KY-559 has an NBI inventory load rating of 32.5 metric tons.

Who is responsible for maintaining KY-559?

KY-559 is owned and maintained by State Highway Agency.

How old is KY-559 and does age affect safety?

KY-559 was built in 1968, making it 58 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.