NB M-39 SERVICE DR
Carrying NB M-39 SERVICE DR over NORTH BR. ECORSE RIVER
IN ALLEN PARK, Wayne, Michigan
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: NB M-39 SERVICE DR
The NB M-39 SERVICE DR bridge in Wayne, Michigan carries NB M-39 SERVICE DR over NORTH BR. ECORSE RIVER. It was built in 1962, making it 64 years old today. The structure is built primarily of steel and spans 1 section, stretching 11.2 meters (37 feet) end to end. Daily traffic averages 8,800 vehicles, placing it in the moderately-trafficked tier of Michigan bridges. It is owned and maintained by City/Municipal Highway Agency.
The latest FHWA inspection records show a deck rating of 4/9, superstructure at 7/9, substructure at 6/9. The weakest component sits in poor condition. Because at least one major component scores 4 or lower, this bridge falls in FHWA's Poor condition category. That category is not a closure order. Its NBI inventory load rating is 48.0 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How NB M-39 SERVICE DR compares
Live comparison across Michigan.
Historical Sufficiency Rating
PlainBridge-computedFHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Structural Details
- Year Built
- 1962
- Material
- Steel
- Number of Spans
- 1
- Structure Length
- 11.2 m (37 ft)
- Deck Width
- 14.5 m (48 ft)
- Owner
- City/Municipal Highway Agency
- Avg Daily Traffic
- 8,800 vehicles/day
- Structure Number
- 000000000012307
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • The deck (driving surface) is in poor condition (4/9), showing advanced deterioration that may require priority repair.
- • 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 fair condition (6/9), with minor deterioration that may require routine maintenance.
How to read this record
NB M-39 SERVICE DR is in the federal Poor condition category. That is a component-based result, not a closure order.
- NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
- Understand what Poor condition does and does not mean before drawing conclusions. Poor condition explained
- Compare NB M-39 SERVICE DR 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 NB M-39 SERVICE DR?
NB M-39 SERVICE DR in Wayne, Michigan has a deck rating of 4/9, superstructure rating of 7/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.
How often is NB M-39 SERVICE DR inspected?
NB M-39 SERVICE DR'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 8,800 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. NB M-39 SERVICE DR is currently shown as Poor condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for NB M-39 SERVICE DR?
NB M-39 SERVICE DR has an NBI inventory load rating of 48.0 metric tons.
Who is responsible for maintaining NB M-39 SERVICE DR?
NB M-39 SERVICE DR is owned and maintained by City/Municipal Highway Agency.
How old is NB M-39 SERVICE DR and does age affect safety?
NB M-39 SERVICE DR was built in 1962, making it 64 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.
Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.