FHWA NBI 2024 Inspection record Public-domain dataset

Knox Twp Rd 246

Carrying Knox Twp Rd 246 over CROXTON RUN

25-Ft N CR47, Jefferson, Ohio

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
39 t Inventory load rating

Bridge Snapshot: Knox Twp Rd 246

The Knox Twp Rd 246 bridge in Jefferson, Ohio carries Knox Twp Rd 246 over CROXTON RUN. It was built in 1920, making it 106 years old today. The structure is built primarily of concrete and spans 1 section, stretching 14.9 meters (49 feet) end to end. Daily traffic averages 79 vehicles, placing it in the lower-traffic tier of Ohio bridges. It is owned and maintained by County Highway Agency.

The latest FHWA inspection records show a deck rating of 4/9, superstructure at 5/9, substructure at 6/9. The weakest component sits in poor condition. A component scored 4 or below, placing this bridge in the federal Poor condition category rather than declaring it unsafe or closed. Its NBI inventory load rating is 38.9 metric tons.

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

How Knox Twp Rd 246 compares

▲ 1.4
Load rating vs Ohio average (37.5 t)
Top 40%
Higher load rating than 60% of Ohio bridges
226
Bridges in Jefferson · 17 in Poor condition
Knox Twp Rd 246 38.9 t
Ohio average 37.5 t

Live comparison across Ohio.

Historical Sufficiency Rating

PlainBridge-computed
70.2 / 100 - historical 50–79.9 band
Structural adequacy /55
45.0
Serviceability /30
13.3
Essentiality /15
14.9
Special reductions
−3.0

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 How the historical reference is calculated.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
4/9
Poor (1–4)
Superstructure
5/9
Fair (5–6)
Substructure
6/9
Fair (5–6)
Inventory Load Rating
38.9 t
NBI inventory level (metric tons)
Overall Condition
Poor

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

Structural Details

Year Built
1920
Material
Concrete
Number of Spans
1
Structure Length
14.9 m (49 ft)
Deck Width
6.4 m (21 ft)
Owner
County Highway Agency
Avg Daily Traffic
79 vehicles/day
Structure Number
4131088

Condition Analysis

  • At 4/9, the deck (driving surface) is in poor shape, with advanced wear flagged for priority repair.
  • The superstructure (beams and supports above the deck) is in fair condition (5/9), with minor deterioration that may require routine maintenance.
  • The substructure (piers and abutments) rates fair at 6/9, minor deterioration that routine maintenance should address.

How to read this record

Knox Twp Rd 246 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 Knox Twp Rd 246 against other structures in Jefferson and across Ohio. Ohio 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 Knox Twp Rd 246?

Knox Twp Rd 246 in Jefferson, Ohio has a deck rating of 4/9, superstructure rating of 5/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.

How often is Knox Twp Rd 246 inspected?

Knox Twp Rd 246'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 79 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. Knox Twp Rd 246 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 Knox Twp Rd 246?

Knox Twp Rd 246 has an NBI inventory load rating of 38.9 metric tons.

Who is responsible for maintaining Knox Twp Rd 246?

Knox Twp Rd 246 is owned and maintained by County Highway Agency.

How old is Knox Twp Rd 246 and does age affect safety?

Knox Twp Rd 246 was built in 1920, making it 106 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.