FHWA NBI 2024 Inspection record Public-domain dataset

KY-356

Carrying KY-356 over S. FORK TWIN CREEK

.2 MI W OF W-JCT KY 1842, Harrison, Kentucky

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
25 t Inventory load rating

Bridge Snapshot: KY-356

The KY-356 bridge in Harrison, Kentucky carries KY-356 over S. FORK TWIN CREEK. It was built in 1961, making it 65 years old today. The structure is built primarily of prestressed concrete and spans 1 section, stretching 11.3 meters (37 feet) end to end. Daily traffic averages 387 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 4/9, substructure at 5/9. The weakest component sits in poor condition. Because at least one major component scores 4 or lower, this bridge falls in FHWA's Poor condition category. That category is not a closure order. Its NBI inventory load rating is 25.3 metric tons.

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

How KY-356 compares

▼ 13.9
Load rating vs Kentucky average (39.2 t)
Bottom 19%
Lower load rating than 81% of Kentucky bridges
153
Bridges in Harrison · 9 in Poor condition
KY-356 25.3 t
Kentucky average 39.2 t

Live comparison across Kentucky.

Historical Sufficiency Rating

PlainBridge-computed
47.6 / 100 - historical 20–49.9 band
Structural adequacy /55
23.8
Serviceability /30
9.0
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 How the historical reference is calculated.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

Deck
6/9
Fair (5–6)
Superstructure
4/9
Poor (1–4)
Substructure
5/9
Fair (5–6)
Inventory Load Rating
25.3 t
NBI inventory level (metric tons)
Overall Condition
Poor

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

Structural Details

Year Built
1961
Material
Prestressed Concrete
Number of Spans
1
Structure Length
11.3 m (37 ft)
Deck Width
6.5 m (21 ft)
Owner
State Highway Agency
Avg Daily Traffic
387 vehicles/day
Structure Number
049B00031N

Condition Analysis

  • At 6/9, the deck (driving surface) shows fair condition, with minor wear flagged for upkeep.
  • The superstructure (beams and supports above the deck) rates poor at 4/9, advanced deterioration that should be prioritized for repair.
  • At 5/9, the substructure (piers and abutments) shows fair condition, with minor wear flagged for upkeep.

How to read this record

KY-356 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-356 against other structures in Harrison 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-356?

KY-356 in Harrison, Kentucky has a deck rating of 6/9, superstructure rating of 4/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.

How often is KY-356 inspected?

KY-356'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 387 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. KY-356 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-356?

KY-356 has an NBI inventory load rating of 25.3 metric tons.

Who is responsible for maintaining KY-356?

KY-356 is owned and maintained by State Highway Agency.

How old is KY-356 and does age affect safety?

KY-356 was built in 1961, making it 65 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.