KY-3500
Carrying KY-3500 over TRAMMEL CREEK
.6 MI N OF JCT KY 1147, Allen, Kentucky
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
KY-3500 in Allen, Kentucky sits above 38% of rated Kentucky bridges on inventory load rating (36 t), while its 1930 build year is earlier than 99% of Allen's recorded-year cohort (88 bridges).
KY-3500 in Allen, Kentucky is rated Poor in the FHWA's 2024 National Bridge Inventory. Built in 1930, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 4. The lowest applicable rating sets the federal condition category, so this Poor 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:002B00011N
PRE-1950 · CONCRETE · LONG-SPAN-RUN · SUB-LED · LOCAL-ADT · STANDARD-LOAD · CAT-POOR
- PRE-1950 Pre-1950
- CONCRETE Concrete
- LONG-SPAN-RUN 6 spans
- SUB-LED Substructure-led
- LOCAL-ADT Local ADT
- STANDARD-LOAD Standard load
- CAT-POOR Poor
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-3500
The KY-3500 bridge in Allen, Kentucky carries KY-3500 over TRAMMEL CREEK. It was built in 1930, making it 96 years old today. The structure is built primarily of concrete and spans 6 sections, stretching 96.9 meters (318 feet) end to end. Daily traffic averages 602 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 a deck rating of 6/9, superstructure at 5/9, substructure at 4/9. The weakest component sits in poor condition. At least one major component here scores 4 or below, which produces a Poor condition classification under FHWA's current reporting rules.
How KY-3500 compares
Age against the county: built in 1930, earlier than 87 of Allen's 88 bridges with a recorded construction year (99%), against a county median build year of 1985. Age is not a defect on its own, but it is the population from which future Poor ratings are drawn.
Live comparison across Kentucky bridges with a recorded inventory load rating (14,532 of 14,548 rated).
KY-3500 vs every rated Kentucky bridge
Inventory load rating (metric tons), FHWA NBI, this state
36 Top 62% higher than 38% 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.
Allen inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 88 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
- 1930
- Material
- Concrete
- Number of Spans
- 6
- Structure Length
- 96.9 m (318 ft)
- Deck Width
- 8.5 m (28 ft)
- Owner
- State Highway Agency
- Avg Daily Traffic
- 602 vehicles/day
- Structure Number
- 002B00011N
Condition Analysis
- • The deck (driving surface) is in fair condition (6/9), with minor deterioration that may require routine maintenance.
- • The superstructure (beams and supports above the deck) rates fair at 5/9, minor deterioration that routine maintenance should address.
- • The substructure (piers and abutments) rates poor at 4/9, with advanced deterioration recorded on the latest inspection.
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
KY-3500 is in the federal Poor condition category. That is a component-based result, not a closure order.
- NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
- Understand what Poor condition does and does not mean before drawing conclusions. Poor condition explained
- Compare KY-3500 against other structures in Allen 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-3500?
KY-3500 in Allen, Kentucky has a deck rating of 6/9, superstructure rating of 5/9, and substructure rating of 4/9 on the FHWA's 0–9 scale.
How often is KY-3500 inspected?
KY-3500'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 602 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. KY-3500 is currently shown as Poor condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for KY-3500?
KY-3500 has an NBI inventory load rating of 35.6 metric tons.
Who is responsible for maintaining KY-3500?
KY-3500 is owned and maintained by State Highway Agency.
How old is KY-3500 and does age affect safety?
KY-3500 was built in 1930, making it 96 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.