FRENCH LINE ROAD
Carrying FRENCH LINE ROAD over ELK CREEK DRAIN
SEC 19-30 WASHINGTON TWP, Sanilac, Michigan
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
FRENCH LINE ROAD in Sanilac, Michigan sits above 90% of rated Michigan bridges on inventory load rating (60 t), while its 1988 build year is earlier than 33% of Sanilac's recorded-year cohort (171 bridges).
FRENCH LINE ROAD in Sanilac, Michigan is rated Good in the FHWA's 2024 National Bridge Inventory. Built in 1988, 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 MI:000000000009532
LATE-CENTURY · PRESTRESS · SINGLE-SPAN · TIED-CTRL · LOCAL-ADT · HEAVY-LOAD · CAT-GOOD
- LATE-CENTURY 1980–1999
- PRESTRESS Prestressed concrete
- SINGLE-SPAN Single span
- TIED-CTRL Tied control
- LOCAL-ADT Local ADT
- HEAVY-LOAD Heavy 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: FRENCH LINE ROAD
The FRENCH LINE ROAD bridge in Sanilac, Michigan carries FRENCH LINE ROAD over ELK CREEK DRAIN. It was built in 1988, making it 38 years old today. It was last reconstructed in 2010, extending its service life. The structure is built primarily of prestressed concrete and spans 1 section, stretching 31.7 meters (104 feet) end to end. Daily traffic averages 958 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 a deck rating of 7/9, 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 FRENCH LINE ROAD compares
Age against the county: built in 1988, earlier than 56 of Sanilac's 171 bridges with a recorded construction year (33%), against a county median build year of 1983. This is one of the newer structures in its county.
Live comparison across Michigan bridges with a recorded inventory load rating (11,366 of 11,371 rated).
FRENCH LINE ROAD vs every rated Michigan bridge
Inventory load rating (metric tons), FHWA NBI, this state
60 Top 10% higher than 90% 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
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.
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
- 1988
- Last Reconstructed
- 2010
- Material
- Prestressed Concrete
- Number of Spans
- 1
- Structure Length
- 31.7 m (104 ft)
- Deck Width
- 10.7 m (35 ft)
- Owner
- County Highway Agency
- Avg Daily Traffic
- 958 vehicles/day
- Structure Number
- 000000000009532
Condition Analysis
- • The deck (driving surface) rates good at 7/9, 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) is in good condition (7/9), showing no significant deterioration.
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 FRENCH 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 FRENCH 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 FRENCH LINE ROAD?
FRENCH LINE ROAD in Sanilac, Michigan has a deck rating of 7/9, superstructure rating of 7/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.
How often is FRENCH LINE ROAD inspected?
FRENCH 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 958 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. FRENCH LINE ROAD 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 FRENCH LINE ROAD?
FRENCH LINE ROAD has an NBI inventory load rating of 59.9 metric tons.
Who is responsible for maintaining FRENCH LINE ROAD?
FRENCH LINE ROAD is owned and maintained by County Highway Agency.
How old is FRENCH LINE ROAD and does age affect safety?
FRENCH LINE ROAD was built in 1988, making it 38 years old and last reconstructed in 2010.
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.