FHWA NBI 2024 Inspection record Public-domain dataset

TOWNLINE 198

Carrying TOWNLINE 198 over TOWNLINE 198 / SLATE RUN

0.1 MI N OF PONTIAC S L, Huron, Ohio

Inventory: FHWA NBI 2024 · last ETL August 2026

FHWA NBI record, refreshed with each annual release.

Poor
9 t Inventory load rating Lower than 99% of rated Ohio bridges

TOWNLINE 198 in Huron, Ohio sits above 1% of rated Ohio bridges on inventory load rating (9 t), while its 1959 build year is earlier than 81% of Huron's recorded-year cohort (311 bridges).

TOWNLINE 198 in Huron, Ohio is rated Poor in the FHWA's 2024 National Bridge Inventory. Built in 1959, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 4. The lowest applicable rating sets the federal condition category, so this Poor 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:3936244

INTERSTATE-ERA · STEEL · SINGLE-SPAN · TIED-CTRL · LOCAL-ADT · LIGHT-LOAD · CAT-POOR

  • INTERSTATE-ERA 1950–1979
  • STEEL Steel
  • SINGLE-SPAN Single span
  • TIED-CTRL Tied control
  • LOCAL-ADT Local ADT
  • LIGHT-LOAD Light load
  • CAT-POOR Poor

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: TOWNLINE 198

The TOWNLINE 198 bridge in Huron, Ohio carries TOWNLINE 198 over TOWNLINE 198 / SLATE RUN. It was built in 1959, making it 67 years old today. It was last reconstructed in 1986, extending its service life. The structure is built primarily of steel and spans 1 section, stretching 25.6 meters (84 feet) end to end. Daily traffic averages 80 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 5/9. The weakest component sits in poor condition. At least one major component here scores 4 or below, which produces a Poor condition classification under FHWA's current reporting rules.

How TOWNLINE 198 compares

▼ 28.4
Load rating vs Ohio average (37.1 t; 26,729 rated)
311
Bridges in Huron · 25 in Poor condition

Age against the county: built in 1959, earlier than 252 of Huron's 311 bridges with a recorded construction year (81%), against a county median build year of 1992. Age is not a defect on its own, but it is the population from which future Poor ratings are drawn.

TOWNLINE 198 8.7 t
Ohio average (26,729 rated) 37.1 t

Live comparison across Ohio bridges with a recorded inventory load rating (26,729 rated).

TOWNLINE 198 vs every rated Ohio bridge

Inventory load rating (metric tons), FHWA NBI, this state

9 Top 99% higher than 1% 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

Deck
4/9
Poor (1–4)
Superstructure
4/9
Poor (1–4)
Substructure
5/9
Fair (5–6)
Inventory Load Rating
8.7 t
NBI inventory level (metric tons)
Overall Condition
Poor

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.

Huron inventory by recorded NBI category

Exclusive Good/Fair/Poor bands across all 311 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
1959
Last Reconstructed
1986
Material
Steel
Number of Spans
1
Structure Length
25.6 m (84 ft)
Deck Width
6.9 m (23 ft)
Owner
County Highway Agency
Avg Daily Traffic
80 vehicles/day
Structure Number
3936244

Condition Analysis

  • At 4/9, the deck (driving surface) is in poor shape, with advanced wear on file for this vintage.
  • The superstructure (beams and supports above the deck) rates poor at 4/9, with advanced deterioration recorded on the latest inspection.
  • The substructure (piers and abutments) is in fair condition (5/9), with minor deterioration that may require routine maintenance.

How to read this record

TOWNLINE 198 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 TOWNLINE 198 against other structures in Huron 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 TOWNLINE 198?

TOWNLINE 198 in Huron, Ohio has a deck rating of 4/9, superstructure rating of 4/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.

How often is TOWNLINE 198 inspected?

TOWNLINE 198'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 80 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. TOWNLINE 198 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 TOWNLINE 198?

TOWNLINE 198 has an NBI inventory load rating of 8.7 metric tons.

Who is responsible for maintaining TOWNLINE 198?

TOWNLINE 198 is owned and maintained by County Highway Agency.

How old is TOWNLINE 198 and does age affect safety?

TOWNLINE 198 was built in 1959, making it 67 years old and last reconstructed in 1986.

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

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.

XFacebookLinkedInWhatsAppEmail

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.