South Cass Street over Boardman River
FairGrand Traverse County, Michigan · In Traverse City · Structure no. 000000000003076
- Built
- 1930
- 95 years old, rebuilt 2021
- Condition
- Fair
- inspected May 2024
- Type
- Arch - Deck
- Concrete
- Length
- 65 ft
- 1 main span
- Daily traffic
- 5,020
- 2020 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
South Cass Street over Boardman River is a concrete arch - deck carrying South Cass Street over Boardman River in Grand Traverse County, Michigan. It was built in 1930 and reconstructed in 2021, so it is 95 years old, older than the Michigan average of 48.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 5,020 vehicles a day, roughly 11% of them trucks, projected to reach 9,619 by 2042. The structure is 65 ft (19.8 m) long and 59 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was South Cass Street over Boardman River built?
It was built in 1930, making it 95 years old in 2025. It was reconstructed in 2021.
What condition is South Cass Street over Boardman River in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in May 2024.
How much traffic does South Cass Street over Boardman River carry?
About 5,020 vehicles per day (2020 count), of which roughly 11% are trucks.
How long is South Cass Street over Boardman River?
The structure is 65 ft (19.8 m) long with a longest span of 65 ft (19.8 m) and a deck 59 ft wide.
Who owns South Cass Street over Boardman River?
It is owned by the City or Municipal Highway Agency.