North Union Street over Boardman River
PoorGrand Traverse County, Michigan · In Traverse City · Structure no. 000000000003075
- Built
- 1955
- 70 years old
- Condition
- Poor
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 100 ft
- 2 main spans
- Daily traffic
- 4,803
- 2022 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
North Union Street over Boardman River is a steel stringer/multi-beam or girder carrying North Union Street over Boardman River in Grand Traverse County, Michigan. It was built in 1955, so it is 70 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. Its operating status is: open, posting recommended but not legally implemented.
It carries about 4,803 vehicles a day, roughly 10% of them trucks, projected to reach 8,801 by 2044. The structure is 100 ft (30.4 m) long and 61 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was North Union Street over Boardman River built?
It was built in 1955, making it 70 years old in 2025.
What condition is North Union Street over Boardman River 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 June 2023.
How much traffic does North Union Street over Boardman River carry?
About 4,803 vehicles per day (2022 count), of which roughly 10% are trucks.
How long is North Union Street over Boardman River?
The structure is 100 ft (30.4 m) long with a longest span of 50 ft (15.2 m) and a deck 61 ft wide.
Who owns North Union Street over Boardman River?
It is owned by the City or Municipal Highway Agency.