WEST CO LINE ROAD
Carrying WEST CO LINE ROAD over NORTH BR PINE RIVER
SEC 07 SEVILLE TWP, Gratiot, Michigan
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
WEST CO LINE ROAD in Gratiot, Michigan sits above 17% of rated Michigan bridges on inventory load rating (29 t), while its 1988 build year is earlier than 29% of Gratiot's recorded-year cohort (167 bridges).
WEST CO LINE ROAD in Gratiot, 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:000000000003240
LATE-CENTURY · PRESTRESS · SINGLE-SPAN · DECK-LED · LOCAL-ADT · STANDARD-LOAD · CAT-GOOD
- LATE-CENTURY 1980–1999
- PRESTRESS Prestressed concrete
- SINGLE-SPAN Single span
- DECK-LED Deck-led
- 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: WEST CO LINE ROAD
The WEST CO LINE ROAD bridge in Gratiot, Michigan carries WEST CO LINE ROAD over NORTH BR PINE RIVER. It was built in 1988, making it 38 years old today. The structure is built primarily of prestressed concrete and spans 1 section, stretching 16.4 meters (54 feet) end to end. Daily traffic averages 61 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 8/9, substructure at 8/9. The weakest component sits in good condition. None of this bridge's reported major components fall into the Poor condition range.
How WEST CO LINE ROAD compares
Age against the county: built in 1988, earlier than 48 of Gratiot's 167 bridges with a recorded construction year (29%), against a county median build year of 1979. 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).
WEST CO LINE ROAD vs every rated Michigan bridge
Inventory load rating (metric tons), FHWA NBI, this state
29 Top 83% higher than 17% 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.
Gratiot inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 167 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
- Material
- Prestressed Concrete
- Number of Spans
- 1
- Structure Length
- 16.4 m (54 ft)
- Deck Width
- 9.4 m (31 ft)
- Owner
- County Highway Agency
- Avg Daily Traffic
- 61 vehicles/day
- Structure Number
- 000000000003240
Condition Analysis
- • The deck (driving surface) rates good at 7/9, with no significant deterioration on file.
- • At 8/9, the superstructure (beams and supports above the deck) is in good shape and shows no significant wear.
- • At 8/9, the substructure (piers and abutments) is in good shape and shows no significant wear.
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 WEST CO 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 WEST CO LINE ROAD against other structures in Gratiot 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 WEST CO LINE ROAD?
WEST CO LINE ROAD in Gratiot, Michigan has a deck rating of 7/9, superstructure rating of 8/9, and substructure rating of 8/9 on the FHWA's 0–9 scale.
How often is WEST CO LINE ROAD inspected?
WEST CO 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 61 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. WEST CO 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 WEST CO LINE ROAD?
WEST CO LINE ROAD has an NBI inventory load rating of 29.4 metric tons.
Who is responsible for maintaining WEST CO LINE ROAD?
WEST CO LINE ROAD is owned and maintained by County Highway Agency.
How old is WEST CO LINE ROAD and does age affect safety?
WEST CO LINE ROAD was built in 1988, making it 38 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.