MONROE AVE
Carrying MONROE AVE over I-375
IN DETROIT, Wayne, Michigan
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
MONROE AVE in Wayne, Michigan sits above 19% of rated Michigan bridges on inventory load rating (31 t), while its 1959 build year is earlier than 74% of Wayne's recorded-year cohort (1,026 bridges).
MONROE AVE in Wayne, Michigan is rated Fair in the FHWA's 2024 National Bridge Inventory. Built in 1959, it carries 3 rated components 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:000000000011390
INTERSTATE-ERA · PRESTRESS · LONG-SPAN-RUN · SUB-LED · ARTERIAL-ADT · STANDARD-LOAD · CAT-FAIR
- INTERSTATE-ERA 1950–1979
- PRESTRESS Prestressed concrete
- LONG-SPAN-RUN 4 spans
- SUB-LED Substructure-led
- ARTERIAL-ADT Arterial ADT
- STANDARD-LOAD Standard 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: MONROE AVE
The MONROE AVE bridge in Wayne, Michigan carries MONROE AVE over I-375. It was built in 1959, making it 67 years old today. It was last reconstructed in 1996, extending its service life. The structure is built primarily of prestressed concrete and spans 4 sections, stretching 55.4 meters (182 feet) end to end. Daily traffic averages 7,000 vehicles, placing it in the moderately-trafficked tier of Michigan bridges. It is owned and maintained by State Highway Agency.
The latest FHWA inspection records show a deck rating of 7/9, superstructure at 7/9, substructure at 6/9. The weakest component sits in fair condition. All reported major components score above the Poor range.
How MONROE AVE compares
Age against the county: built in 1959, earlier than 761 of Wayne's 1,026 bridges with a recorded construction year (74%), 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).
MONROE AVE vs every rated Michigan bridge
Inventory load rating (metric tons), FHWA NBI, this state
31 Top 81% higher than 19% 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.
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
- 1959
- Last Reconstructed
- 1996
- Material
- Prestressed Concrete
- Number of Spans
- 4
- Structure Length
- 55.4 m (182 ft)
- Deck Width
- 14.1 m (46 ft)
- Owner
- State Highway Agency
- Avg Daily Traffic
- 7,000 vehicles/day
- Structure Number
- 000000000011390
Condition Analysis
- • The deck (driving surface) is in good condition (7/9), showing no significant deterioration.
- • At 7/9, the superstructure (beams and supports above the deck) is in good shape and shows no significant wear.
- • 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 MONROE AVE 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 MONROE AVE 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 MONROE AVE?
MONROE AVE in Wayne, Michigan has a deck rating of 7/9, superstructure rating of 7/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.
How often is MONROE AVE inspected?
MONROE AVE'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 7,000 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. MONROE AVE 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 MONROE AVE?
MONROE AVE has an NBI inventory load rating of 30.8 metric tons.
Who is responsible for maintaining MONROE AVE?
MONROE AVE is owned and maintained by State Highway Agency.
How old is MONROE AVE and does age affect safety?
MONROE AVE was built in 1959, making it 67 years old and last reconstructed in 1996.
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.