Grimes Creek Road over Grimes Creek
FairPosted for loadBoise County, Idaho · 2.9 S. 6.7 W. Idaho City · Structure no. 000000000026685
- Built
- 1935
- 90 years old, rebuilt 1958
- Condition
- Fair
- inspected September 2023
- Type
- Stringer/Multi-beam or Girder
- Wood or Timber
- Length
- 42 ft
- 1 main span
- Daily traffic
- 20
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
Grimes Creek Road over Grimes Creek is a wood or timber stringer/multi-beam or girder carrying Grimes Creek Road over Grimes Creek in Boise County, Idaho. It was built in 1935 and reconstructed in 1958, so it is 90 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.
It carries about 20 vehicles a day, projected to reach 30 by 2042. The structure is 42 ft (12.8 m) long and 15 ft wide. If it were closed, the detour would be 11.2 mi (18 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Grimes Creek Road over Grimes Creek built?
It was built in 1935, making it 90 years old in 2025. It was reconstructed in 1958.
What condition is Grimes Creek Road over Grimes 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 September 2023.
How much traffic does Grimes Creek Road over Grimes Creek carry?
About 20 vehicles per day (2023 count).
How long is Grimes Creek Road over Grimes Creek?
The structure is 42 ft (12.8 m) long with a longest span of 40 ft (12.2 m) and a deck 15 ft wide.
Who owns Grimes Creek Road over Grimes Creek?
It is owned by the County Highway Agency.