SH 16 over Willow Creek
FairAda County, Idaho · 8.3 S. Emmett · Structure no. 000000000012156
- Built
- 2011
- 14 years old
- Condition
- Fair
- inspected January 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 108 ft
- 1 main span
- Daily traffic
- 12,000
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
SH 16 over Willow Creek is a prestressed concrete stringer/multi-beam or girder carrying SH 16 over Willow Creek in Ada County, Idaho. It was built in 2011, so it is 14 years old, younger 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 12,000 vehicles a day, roughly 8% of them trucks, projected to reach 18,000 by 2042. The structure is 108 ft (32.9 m) long and 54 ft wide. If it were closed, the detour would be 21.7 mi (35 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 | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 9 Excellent | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SH 16 over Willow Creek built?
It was built in 2011, making it 14 years old in 2025.
What condition is SH 16 over Willow 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 January 2023.
How much traffic does SH 16 over Willow Creek carry?
About 12,000 vehicles per day (2023 count), of which roughly 8% are trucks.
How long is SH 16 over Willow Creek?
The structure is 108 ft (32.9 m) long with a longest span of 105 ft (32 m) and a deck 54 ft wide.
Who owns SH 16 over Willow Creek?
It is owned by the State Highway Agency.