SMA3909;KUNA Mora over Blacks Creek
FairAda County, Idaho · 10.6 S. 5.5 E. Boise · Structure no. 000000000026190
- Built
- 1968
- 57 years old
- Condition
- Fair
- inspected March 2023
- Type
- Tee Beam
- Concrete
- Length
- 32 ft
- 1 main span
- Daily traffic
- 1,200
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
SMA3909;KUNA Mora over Blacks Creek is a concrete tee beam carrying SMA3909;KUNA Mora over Blacks Creek in Ada County, Idaho. It was built in 1968, so it is 57 years old, older than the Idaho average of 45.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 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 1,200 vehicles a day, roughly 10% of them trucks, projected to reach 1,800 by 2042. The structure is 32 ft (9.8 m) long and 26 ft wide. If it were closed, the detour would be 11.8 mi (19 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 |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SMA3909;KUNA Mora over Blacks Creek built?
It was built in 1968, making it 57 years old in 2025.
What condition is SMA3909;KUNA Mora over Blacks Creek 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 March 2023.
How much traffic does SMA3909;KUNA Mora over Blacks Creek carry?
About 1,200 vehicles per day (2023 count), of which roughly 10% are trucks.
How long is SMA3909;KUNA Mora over Blacks Creek?
The structure is 32 ft (9.8 m) long with a longest span of 31 ft (9.4 m) and a deck 26 ft wide.
Who owns SMA3909;KUNA Mora over Blacks Creek?
It is owned by the County Highway Agency.