GRISWOLD STREET
Carrying GRISWOLD STREET over MIDDLE ROUGE RIVER
NORTHVILLE N/MAIN ST, Wayne, Michigan
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
GRISWOLD STREET in Wayne, Michigan sits above 3% of rated Michigan bridges on inventory load rating (13 t), while its 1928 build year is earlier than 96% of Wayne's recorded-year cohort (1,026 bridges).
GRISWOLD STREET in Wayne, Michigan is rated Fair in the FHWA's 2024 National Bridge Inventory. Built in 1928, 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:000000000012116
PRE-1950 · CONCRETE · MULTI-SPAN · CULVERT-LED · ARTERIAL-ADT · LIGHT-LOAD · CAT-FAIR
- PRE-1950 Pre-1950
- CONCRETE Concrete
- MULTI-SPAN 2 spans
- CULVERT-LED Culvert-led
- ARTERIAL-ADT Arterial ADT
- LIGHT-LOAD Light 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: GRISWOLD STREET
The GRISWOLD STREET bridge in Wayne, Michigan carries GRISWOLD STREET over MIDDLE ROUGE RIVER. It was built in 1928, making it 98 years old today. The structure is built primarily of concrete and spans 2 sections, stretching 7.3 meters (24 feet) end to end. Daily traffic averages 5,403 vehicles, placing it in the moderately-trafficked 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 GRISWOLD STREET compares
Age against the county: built in 1928, earlier than 983 of Wayne's 1,026 bridges with a recorded construction year (96%), against a county median build year of 1970. Age is not a defect on its own, but it is the population from which future Poor ratings are drawn.
Live comparison across Michigan bridges with a recorded inventory load rating (11,366 of 11,371 rated).
GRISWOLD STREET vs every rated Michigan bridge
Inventory load rating (metric tons), FHWA NBI, this state
13 Top 97% higher than 3% 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.
Wayne inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 1,026 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
- 1928
- Material
- Concrete
- Number of Spans
- 2
- Structure Length
- 7.3 m (24 ft) 0
- Owner
- County Highway Agency
- Avg Daily Traffic
- 5,403 vehicles/day
- Structure Number
- 000000000012116
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 GRISWOLD STREET 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 GRISWOLD STREET against other structures in Wayne 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 GRISWOLD STREET?
GRISWOLD STREET in Wayne, Michigan on the FHWA's 0–9 scale.
How often is GRISWOLD STREET inspected?
GRISWOLD STREET'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 5,403 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. GRISWOLD STREET 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 GRISWOLD STREET?
GRISWOLD STREET has an NBI inventory load rating of 13.4 metric tons.
Who is responsible for maintaining GRISWOLD STREET?
GRISWOLD STREET is owned and maintained by County Highway Agency.
How old is GRISWOLD STREET and does age affect safety?
GRISWOLD STREET was built in 1928, making it 98 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.