BLO TR 173
Carrying BLO TR 173 over HONEY CREEK BL
225 FT. N OF TR 163, Seneca, Ohio
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
BLO TR 173 in Seneca, Ohio sits above 19% of rated Ohio bridges on inventory load rating (29 t), while its 1986 build year is earlier than 49% of Seneca's recorded-year cohort (275 bridges).
BLO TR 173 in Seneca, Ohio is rated Good in the FHWA's 2024 National Bridge Inventory. Built in 1986, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 7. The lowest applicable rating sets the federal condition category, so this Good result describes the weakest reported component rather than the structure as a whole. No NBI category is a closure decision or a live crossing-safety verdict.
NBI record plate
Structure OH:7433476
LATE-CENTURY · STEEL · SINGLE-SPAN · TIED-CTRL · LOCAL-ADT · STANDARD-LOAD · CAT-GOOD
- LATE-CENTURY 1980–1999
- STEEL Steel
- SINGLE-SPAN Single span
- TIED-CTRL Tied control
- LOCAL-ADT Local ADT
- STANDARD-LOAD Standard load
- CAT-GOOD Good
Inspection-sheet codes from this record’s year, material family, spans, controlling component, ADT, inventory load, and NBI category, not a live closure verdict.
Bridge Snapshot: BLO TR 173
The BLO TR 173 bridge in Seneca, Ohio carries BLO TR 173 over HONEY CREEK BL. It was built in 1986, making it 40 years old today. The structure is built primarily of steel and spans 1 section, stretching 30.8 meters (101 feet) end to end. Daily traffic averages 351 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 8/9, superstructure at 7/9, substructure at 7/9. The weakest component sits in good condition. None of this bridge's reported major components fall into the Poor condition range.
How BLO TR 173 compares
Age against the county: built in 1986, earlier than 134 of Seneca's 275 bridges with a recorded construction year (49%), against a county median build year of 1986.
Live comparison across Ohio bridges with a recorded inventory load rating (26,729 rated).
BLO TR 173 vs every rated Ohio bridge
Inventory load rating (metric tons), FHWA NBI, this state
29 Top 81% higher than 19% of 26,729 bridges
rated Ohio bridges, bucketed by value
Each bar is a band; taller bars hold more bridges. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source FHWA National Bridge Inventory · August 2026
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Reported 0–9 component ratings from the FHWA NBI. The highlighted component is the lowest reported input to this record’s current condition category; it is not a closure or live crossing-safety decision.
Seneca inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 275 bridges in this county. Orthogonal to this structure's component profile above: a county catalog share, not a live crossing-safety verdict.
Structural Details
- Year Built
- 1986
- Material
- Steel
- Number of Spans
- 1
- Structure Length
- 30.8 m (101 ft)
- Deck Width
- 8.1 m (27 ft)
- Owner
- County Highway Agency
- Avg Daily Traffic
- 351 vehicles/day
- Structure Number
- 7433476
Condition Analysis
- • The deck (driving surface) rates good at 8/9, with no significant deterioration on file.
- • The superstructure (beams and supports above the deck) rates good at 7/9, with no significant deterioration on file.
- • The substructure (piers and abutments) rates good at 7/9, with no significant deterioration on file.
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
This page shows what the last federal inspection recorded, not whether BLO TR 173 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 BLO TR 173 against other structures in Seneca 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 BLO TR 173?
BLO TR 173 in Seneca, Ohio has a deck rating of 8/9, superstructure rating of 7/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.
How often is BLO TR 173 inspected?
BLO TR 173'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 351 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. BLO TR 173 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 BLO TR 173?
BLO TR 173 has an NBI inventory load rating of 29.2 metric tons.
Who is responsible for maintaining BLO TR 173?
BLO TR 173 is owned and maintained by County Highway Agency.
How old is BLO TR 173 and does age affect safety?
BLO TR 173 was built in 1986, making it 40 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.
Share this inspection record
Send this source-bounded record or download its data card. An NBI condition category is not a closure or live crossing-safety verdict.
Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Component ratings, ADT, and condition category on this page are copied from the NBI record for this structure; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.