FHWA NBI 2024 Inspection record Public-domain dataset

ALCONY-CONOVER

Carrying ALCONY-CONOVER over LEATHERWOOD DITCH

0.29 N OF CR197, Miami, Ohio

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
33 t Inventory load rating

Bridge Snapshot: ALCONY-CONOVER

The ALCONY-CONOVER bridge in Miami, Ohio carries ALCONY-CONOVER over LEATHERWOOD DITCH. It was built in 1965, making it 61 years old today. The structure is built primarily of prestressed concrete and spans 3 sections, stretching 25.6 meters (84 feet) end to end. Daily traffic averages 222 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 4/9, substructure at 4/9. 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 33.4 metric tons.

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

How ALCONY-CONOVER compares

▼ 4.1
Load rating vs Ohio average (37.5 t)
Bottom 49%
Lower load rating than 51% of Ohio bridges
315
Bridges in Miami · 22 in Poor condition
ALCONY-CONOVER 33.4 t
Ohio average 37.5 t

Live comparison across Ohio.

Historical Sufficiency Rating

PlainBridge-computed
61.7 / 100 - historical 50–79.9 band
Structural adequacy /55
30.0
Serviceability /30
18.8
Essentiality /15
14.9
Special reductions
−2.0

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 How the historical reference is calculated.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

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

Structural Details

Year Built
1965
Material
Prestressed Concrete
Number of Spans
3
Structure Length
25.6 m (84 ft)
Deck Width
7.3 m (24 ft)
Owner
County Highway Agency
Avg Daily Traffic
222 vehicles/day
Structure Number
5531748

Condition Analysis

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

How to read this record

ALCONY-CONOVER 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 ALCONY-CONOVER against other structures in Miami 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 ALCONY-CONOVER?

ALCONY-CONOVER in Miami, Ohio has a deck rating of 4/9, superstructure rating of 4/9, and substructure rating of 4/9 on the FHWA's 0–9 scale.

How often is ALCONY-CONOVER inspected?

ALCONY-CONOVER'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 222 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. ALCONY-CONOVER 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 ALCONY-CONOVER?

ALCONY-CONOVER has an NBI inventory load rating of 33.4 metric tons.

Who is responsible for maintaining ALCONY-CONOVER?

ALCONY-CONOVER is owned and maintained by County Highway Agency.

How old is ALCONY-CONOVER and does age affect safety?

ALCONY-CONOVER was built in 1965, making it 61 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.