Stc 4747;CNTRL Rdg over Big Canyon Creek
FairPosted for loadNez Perce County, Idaho · 0.3 S. Peck · Structure no. 000000000020230
- Built
- 1948
- 77 years old
- Condition
- Fair
- inspected September 2023
- Type
- Tee Beam
- Concrete
- Length
- 62 ft
- 1 main span
- Daily traffic
- 30
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
Stc 4747;CNTRL Rdg over Big Canyon Creek is a concrete tee beam carrying Stc 4747;CNTRL Rdg over Big Canyon Creek in Nez Perce County, Idaho. It was built in 1948, so it is 77 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 30 vehicles a day, roughly 50% of them trucks, projected to reach 45 by 2042. The structure is 62 ft (18.9 m) long and 28 ft wide. If it were closed, the detour would be 42.3 mi (68 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Stc 4747;CNTRL Rdg over Big Canyon Creek built?
It was built in 1948, making it 77 years old in 2025.
What condition is Stc 4747;CNTRL Rdg over Big Canyon 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 Stc 4747;CNTRL Rdg over Big Canyon Creek carry?
About 30 vehicles per day (2023 count), of which roughly 50% are trucks.
How long is Stc 4747;CNTRL Rdg over Big Canyon Creek?
The structure is 62 ft (18.9 m) long with a longest span of 60 ft (18.3 m) and a deck 28 ft wide.
Who owns Stc 4747;CNTRL Rdg over Big Canyon Creek?
It is owned by the County Highway Agency.