FHWA NBI 2024 Inspection record Public-domain dataset

Center St

Carrying Center St over RT Frk Troublesome Creek

0.03 MI S of JCT KY 160, Knott, Kentucky

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
45 t Inventory load rating

Bridge Snapshot: Center St

The Center St bridge in Knott, Kentucky carries Center St over RT Frk Troublesome Creek. It was built in 2004, making it 22 years old today. The structure is built primarily of prestressed concrete and spans 2 sections, stretching 43.7 meters (143 feet) end to end. Daily traffic averages 352 vehicles, placing it in the lower-traffic tier of Kentucky bridges. It is owned and maintained by City/Municipal Highway Agency.

The latest FHWA inspection records show a deck rating of 7/9, superstructure at 8/9, substructure at 7/9. The weakest component sits in good condition. All reported major components score above the Poor range. Its NBI inventory load rating is 44.6 metric tons.

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

How Center St compares

▲ 5.4
Load rating vs Kentucky average (39.2 t)
Top 30%
Higher load rating than 70% of Kentucky bridges
134
Bridges in Knott · 17 in Poor condition
Center St 44.6 t
Kentucky average 39.2 t

Live comparison across Kentucky.

Historical Sufficiency Rating

PlainBridge-computed
99.2 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
29.2
Essentiality /15
15.0
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 How the historical reference is calculated.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
7/9
Good (7–9)
Superstructure
8/9
Good (7–9)
Substructure
7/9
Good (7–9)
Inventory Load Rating
44.6 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
2004
Material
Prestressed Concrete
Number of Spans
2
Structure Length
43.7 m (143 ft)
Deck Width
11.2 m (37 ft)
Owner
City/Municipal Highway Agency
Avg Daily Traffic
352 vehicles/day
Structure Number
060C00077N

Condition Analysis

  • At 7/9, 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 (7/9), showing no significant deterioration.

How to read this record

This page shows what the last federal inspection recorded, not whether Center St 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 Center St 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 Center St?

Center St in Knott, Kentucky has a deck rating of 7/9, superstructure rating of 8/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.

How often is Center St inspected?

Center St'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 352 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. Center St 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 Center St?

Center St has an NBI inventory load rating of 44.6 metric tons.

Who is responsible for maintaining Center St?

Center St is owned and maintained by City/Municipal Highway Agency.

How old is Center St and does age affect safety?

Center St was built in 2004, making it 22 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.