FHWA NBI 2024 Inspection record Public-domain dataset

Preble Co Line C23

Carrying Preble Co Line C23 over Twin Creek

1.9 MILES NORTH OF SR725, Montgomery, Ohio

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
26 t Inventory load rating

Bridge Snapshot: Preble Co Line C23

The Preble Co Line C23 bridge in Montgomery, Ohio carries Preble Co Line C23 over Twin Creek. It was built in 1962, making it 64 years old today. It was last reconstructed in 1985, extending its service life. The structure is built primarily of steel continuous and spans 4 sections, stretching 100.6 meters (330 feet) end to end. Daily traffic averages 979 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 7/9, substructure at 6/9. 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 25.9 metric tons.

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

How Preble Co Line C23 compares

▼ 11.6
Load rating vs Ohio average (37.5 t)
Bottom 13%
Lower load rating than 87% of Ohio bridges
632
Bridges in Montgomery · 16 in Poor condition
Preble Co Line C23 25.9 t
Ohio average 37.5 t

Live comparison across Ohio.

Historical Sufficiency Rating

PlainBridge-computed
81.9 / 100 - historical 80–100 band
Structural adequacy /55
49.6
Serviceability /30
17.9
Essentiality /15
14.4
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 How the historical reference is calculated.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
4/9
Poor (1–4)
Superstructure
7/9
Good (7–9)
Substructure
6/9
Fair (5–6)
Inventory Load Rating
25.9 t
NBI inventory level (metric tons)
Overall Condition
Poor

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

Structural Details

Year Built
1962
Last Reconstructed
1985
Material
Steel Continuous
Number of Spans
4
Structure Length
100.6 m (330 ft)
Deck Width
9.1 m (30 ft)
Owner
County Highway Agency
Avg Daily Traffic
979 vehicles/day
Structure Number
5738156

Condition Analysis

  • The deck (driving surface) rates poor at 4/9, advanced deterioration that should be prioritized for repair.
  • The superstructure (beams and supports above the deck) is in good condition (7/9), showing no significant deterioration.
  • The substructure (piers and abutments) is in fair condition (6/9), with minor deterioration that may require routine maintenance.

How to read this record

Preble Co Line C23 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 Preble Co Line C23 against other structures in Montgomery 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 Preble Co Line C23?

Preble Co Line C23 in Montgomery, Ohio has a deck rating of 4/9, superstructure rating of 7/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.

How often is Preble Co Line C23 inspected?

Preble Co Line C23'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 979 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. Preble Co Line C23 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 Preble Co Line C23?

Preble Co Line C23 has an NBI inventory load rating of 25.9 metric tons.

Who is responsible for maintaining Preble Co Line C23?

Preble Co Line C23 is owned and maintained by County Highway Agency.

How old is Preble Co Line C23 and does age affect safety?

Preble Co Line C23 was built in 1962, making it 64 years old and last reconstructed in 1985.

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.