8 Mile Road over Bear River
PoorCaribou County, Idaho · 3.2 S. 4.1 E.Soda Springs · Structure no. 000000000023235
- Built
- 1972
- 53 years old
- Condition
- Poor
- inspected April 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 100 ft
- 1 main span
- Daily traffic
- 100
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
8 Mile Road over Bear River is a steel stringer/multi-beam or girder carrying 8 Mile Road over Bear River in Caribou County, Idaho. It was built in 1972, so it is 53 years old, older than the Idaho average of 45.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 100 vehicles a day, roughly 10% of them trucks, projected to reach 150 by 2039. The structure is 100 ft (30.5 m) long and 16 ft wide. If it were closed, the detour would be 14.9 mi (24 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| 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 8 Mile Road over Bear River built?
It was built in 1972, making it 53 years old in 2025.
What condition is 8 Mile Road over Bear River in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in April 2024.
How much traffic does 8 Mile Road over Bear River carry?
About 100 vehicles per day (2023 count), of which roughly 10% are trucks.
How long is 8 Mile Road over Bear River?
The structure is 100 ft (30.5 m) long with a longest span of 96 ft (29.3 m) and a deck 16 ft wide.
Who owns 8 Mile Road over Bear River?
It is owned by the County Highway Agency.