SH 16 over Boise River
GoodAda County, Idaho · 1.3 E. Star Scl · Structure no. 000000000034015
- Built
- 2014
- 11 years old
- Condition
- Good
- inspected January 2022
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 1,726 ft
- 11 main spans
- Daily traffic
- 18,000
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
SH 16 over Boise River is a prestressed concrete continuous stringer/multi-beam or girder carrying SH 16 over Boise River in Ada County, Idaho. It was built in 2014, so it is 11 years old, younger than the Idaho average of 45.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 18,000 vehicles a day, roughly 9% of them trucks, projected to reach 27,000 by 2042. The structure is 1,726 ft (526.1 m) long and 88 ft wide. If it were closed, the detour would be 3.1 mi (5 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| 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 Boise River built?
It was built in 2014, making it 11 years old in 2025.
What condition is SH 16 over Boise River in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in January 2022.
How much traffic does SH 16 over Boise River carry?
About 18,000 vehicles per day (2023 count), of which roughly 9% are trucks.
How long is SH 16 over Boise River?
The structure is 1,726 ft (526.1 m) long with a longest span of 154 ft (46.9 m) and a deck 88 ft wide.
Who owns SH 16 over Boise River?
It is owned by the State Highway Agency.