STC2866;BASELINE R over Snake R.(montgomery Br)
PoorMinidoka County, Idaho · 4.0 E. Rupert · Structure no. 000000000019640
- Built
- 1954
- 71 years old, rebuilt 1985
- Condition
- Poor
- inspected September 2024
- Type
- Tee Beam
- Concrete
- Length
- 960 ft
- 24 main spans
- Daily traffic
- 1,500
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
STC2866;BASELINE R over Snake R.(montgomery Br) is a concrete tee beam carrying STC2866;BASELINE R over Snake R.(montgomery Br) in Minidoka County, Idaho. It was built in 1954 and reconstructed in 1985, so it is 71 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 4 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 1,500 vehicles a day, roughly 8% of them trucks, projected to reach 2,250 by 2042. The structure is 960 ft (292.6 m) long and 33 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 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was STC2866;BASELINE R over Snake R.(montgomery Br) built?
It was built in 1954, making it 71 years old in 2025. It was reconstructed in 1985.
What condition is STC2866;BASELINE R over Snake R.(montgomery Br) 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 September 2024.
How much traffic does STC2866;BASELINE R over Snake R.(montgomery Br) carry?
About 1,500 vehicles per day (2023 count), of which roughly 8% are trucks.
How long is STC2866;BASELINE R over Snake R.(montgomery Br)?
The structure is 960 ft (292.6 m) long with a longest span of 39 ft (11.9 m) and a deck 33 ft wide.
Who owns STC2866;BASELINE R over Snake R.(montgomery Br)?
It is owned by the County Highway Agency.