Central Grade Road over Hatwai Creek
FairNez Perce County, Idaho · 2.2 N. 3.0 E. Lewiston · Structure no. 000000000029910
- Built
- 1968
- 57 years old
- Condition
- Fair
- inspected May 2023
- Type
- Girder and Floorbeam System
- Steel
- Length
- 52 ft
- 2 main spans
- Daily traffic
- 650
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
Central Grade Road over Hatwai Creek is a steel girder and floorbeam system carrying Central Grade Road over Hatwai Creek in Nez Perce 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 650 vehicles a day, roughly 10% of them trucks, projected to reach 975 by 2039. The structure is 52 ft (15.8 m) long and 28 ft wide. If it were closed, the detour would be 24.9 mi (40 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Central Grade Road over Hatwai Creek built?
It was built in 1968, making it 57 years old in 2025.
What condition is Central Grade Road over Hatwai 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 May 2023.
How much traffic does Central Grade Road over Hatwai Creek carry?
About 650 vehicles per day (2023 count), of which roughly 10% are trucks.
How long is Central Grade Road over Hatwai Creek?
The structure is 52 ft (15.8 m) long with a longest span of 26 ft (7.9 m) and a deck 28 ft wide.
Who owns Central Grade Road over Hatwai Creek?
It is owned by the County Highway Agency.