M-45 (FULTON ST)
Carrying M-45 (FULTON ST) over GRAND RIVER
IN GRAND RAPIDS, Kent, Michigan
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
M-45 (FULTON ST) in Kent, Michigan sits above 65% of rated Michigan bridges on inventory load rating (43 t), while its 1927 build year is earlier than 96% of Kent's recorded-year cohort (523 bridges).
M-45 (FULTON ST) in Kent, Michigan is rated Fair in the FHWA's 2024 National Bridge Inventory. Built in 1927, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 5. 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:000000000004932
PRE-1950 · CONCRETE · LONG-SPAN-RUN · DECK-LED · HEAVY-ADT · HEAVY-LOAD · CAT-FAIR
- PRE-1950 Pre-1950
- CONCRETE Concrete
- LONG-SPAN-RUN 5 spans
- DECK-LED Deck-led
- HEAVY-ADT Heavy 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: M-45 (FULTON ST)
The M-45 (FULTON ST) bridge in Kent, Michigan carries M-45 (FULTON ST) over GRAND RIVER. It was built in 1927, making it 99 years old today. It was last reconstructed in 1976, extending its service life. The structure is built primarily of concrete continuous and spans 5 sections, stretching 163.5 meters (536 feet) end to end. Daily traffic averages 27,197 vehicles, placing it in the heavily-trafficked tier of Michigan bridges. It is owned and maintained by State Highway Agency.
The latest FHWA inspection records show a deck rating of 5/9, superstructure at 6/9, substructure at 6/9. The weakest component sits in fair condition. None of this bridge's reported major components fall into the Poor condition range.
How M-45 (FULTON ST) compares
Age against the county: built in 1927, earlier than 502 of Kent's 523 bridges with a recorded construction year (96%), against a county median build year of 1971. 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).
M-45 (FULTON ST) vs every rated Michigan bridge
Inventory load rating (metric tons), FHWA NBI, this state
43 Top 35% higher than 65% 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.
Kent inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 523 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
- 1927
- Last Reconstructed
- 1976
- Material
- Concrete Continuous
- Number of Spans
- 5
- Structure Length
- 163.5 m (536 ft)
- Deck Width
- 25.4 m (83 ft)
- Owner
- State Highway Agency
- Avg Daily Traffic
- 27,197 vehicles/day
- Structure Number
- 000000000004932
Condition Analysis
- • The deck (driving surface) rates fair at 5/9, minor deterioration that routine maintenance should address.
- • The superstructure (beams and supports above the deck) rates fair at 6/9, minor deterioration that routine maintenance should address.
- • The substructure (piers and abutments) rates fair at 6/9, minor deterioration that routine maintenance should address.
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 M-45 (FULTON ST) 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 M-45 (FULTON ST) against other structures in Kent 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 M-45 (FULTON ST)?
M-45 (FULTON ST) in Kent, Michigan has a deck rating of 5/9, superstructure rating of 6/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.
How often is M-45 (FULTON ST) inspected?
M-45 (FULTON ST)'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 27,197 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. M-45 (FULTON ST) 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 M-45 (FULTON ST)?
M-45 (FULTON ST) has an NBI inventory load rating of 43.4 metric tons.
Who is responsible for maintaining M-45 (FULTON ST)?
M-45 (FULTON ST) is owned and maintained by State Highway Agency.
How old is M-45 (FULTON ST) and does age affect safety?
M-45 (FULTON ST) was built in 1927, making it 99 years old and last reconstructed in 1976.
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.