Harper Ave over I-94
PoorWayne County, Michigan · In Detroit · Structure no. 000000000011223
- Built
- 1958
- 67 years old
- Condition
- Poor
- inspected April 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 171 ft
- 2 main spans
- Daily traffic
- 317
- 2010 count
- Owner
- State
- State Highway Agency
About this bridge
Harper Ave over I-94 is a steel continuous stringer/multi-beam or girder carrying Harper Ave over I-94 in Wayne County, Michigan. It was built in 1958, so it is 67 years old, older than the Michigan average of 48.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 317 vehicles a day, roughly 3% of them trucks, projected to reach 349 by 2025. The structure is 171 ft (52.1 m) long and 40 ft wide. If it were closed, the detour would be 1.9 mi (3 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Harper Ave over I-94 built?
It was built in 1958, making it 67 years old in 2025.
What condition is Harper Ave over I-94 in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in April 2024.
How much traffic does Harper Ave over I-94 carry?
About 317 vehicles per day (2010 count), of which roughly 3% are trucks.
How long is Harper Ave over I-94?
The structure is 171 ft (52.1 m) long with a longest span of 87 ft (26.5 m) and a deck 40 ft wide.
Who owns Harper Ave over I-94?
It is owned by the State Highway Agency.