FHWA NBI 2024 Inspection record Public-domain dataset

WELLMAN LINE ROAD

Carrying WELLMAN LINE ROAD over JACKSON CREEK I/C DRAIN

SEC 28-33 FREMONT TWP, Sanilac, Michigan

Inventory: FHWA NBI 2024 · last ETL August 2026

FHWA NBI record, refreshed with each annual release.

Fair
76 t Inventory load rating Higher than 96% of rated Michigan bridges

WELLMAN LINE ROAD in Sanilac, Michigan sits above 96% of rated Michigan bridges on inventory load rating (76 t), while its 1984 build year is earlier than 44% of Sanilac's recorded-year cohort (171 bridges).

WELLMAN LINE ROAD in Sanilac, Michigan is rated Fair in the FHWA's 2024 National Bridge Inventory. Built in 1984, it carries 1 rated component on the inspecting agency's 0-9 scale, and its weakest reported component scores 6. The lowest applicable rating sets the federal condition category, so this Fair 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 MI:000000000009624

LATE-CENTURY · STEEL · MULTI-SPAN · CULVERT-LED · LOCAL-ADT · HEAVY-LOAD · CAT-FAIR

  • LATE-CENTURY 1980–1999
  • STEEL Steel
  • MULTI-SPAN 2 spans
  • CULVERT-LED Culvert-led
  • LOCAL-ADT Local ADT
  • HEAVY-LOAD Heavy load
  • CAT-FAIR Fair

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: WELLMAN LINE ROAD

The WELLMAN LINE ROAD bridge in Sanilac, Michigan carries WELLMAN LINE ROAD over JACKSON CREEK I/C DRAIN. It was built in 1984, making it 42 years old today. The structure is built primarily of steel and spans 2 sections, stretching 8.0 meters (26 feet) end to end. Daily traffic averages 170 vehicles, placing it in the lower-traffic tier of Michigan bridges. It is owned and maintained by County Highway Agency.

The latest FHWA inspection records show culvert at 6/9. The weakest component sits in fair condition. All reported major components score above the Poor range.

How WELLMAN LINE ROAD compares

▲ 34.9
Load rating vs Michigan average (41.2 t; 11,366 of 11,371 rated)
171
Bridges in Sanilac · 17 in Poor condition

Age against the county: built in 1984, earlier than 76 of Sanilac's 171 bridges with a recorded construction year (44%), against a county median build year of 1983. This is one of the newer structures in its county.

WELLMAN LINE ROAD 76.1 t
Michigan average (11,366 of 11,371 rated) 41.2 t

Live comparison across Michigan bridges with a recorded inventory load rating (11,366 of 11,371 rated).

WELLMAN LINE ROAD vs every rated Michigan bridge

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

76 Top 4% higher than 96% of 11,366 bridges

rated Michigan 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

Culvert
6/9
Fair (5–6)
Inventory Load Rating
76.1 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Sanilac inventory by recorded NBI category

Exclusive Good/Fair/Poor bands across all 171 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
1984
Material
Steel
Number of Spans
2
Structure Length
8.0 m (26 ft)
0
Owner
County Highway Agency
Avg Daily Traffic
170 vehicles/day
Structure Number
000000000009624

How to read this record

This page shows what the last federal inspection recorded, not whether WELLMAN LINE ROAD 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 WELLMAN LINE ROAD against other structures in Sanilac and across Michigan. Michigan 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 WELLMAN LINE ROAD?

WELLMAN LINE ROAD in Sanilac, Michigan on the FHWA's 0–9 scale.

How often is WELLMAN LINE ROAD inspected?

WELLMAN LINE ROAD'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 170 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. WELLMAN LINE ROAD is currently shown as Fair condition from its component ratings; that category is not a live closure or safety decision.

What is the inventory load rating for WELLMAN LINE ROAD?

WELLMAN LINE ROAD has an NBI inventory load rating of 76.1 metric tons.

Who is responsible for maintaining WELLMAN LINE ROAD?

WELLMAN LINE ROAD is owned and maintained by County Highway Agency.

How old is WELLMAN LINE ROAD and does age affect safety?

WELLMAN LINE ROAD was built in 1984, making it 42 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

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Send this source-bounded record or download its data card. An NBI condition category is not a closure or live crossing-safety verdict.

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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.