E. 100 S. over Marsh Creek
FairCassia County, Idaho · 0.2 S. 2.4 E. Declo · Structure no. 000000000024063
- Built
- 1999
- 26 years old
- Condition
- Fair
- inspected October 2023
- Type
- Frame
- Concrete
- Length
- 25 ft
- 1 main span
- Daily traffic
- 100
- 2023 count
- Owner
- Local
- Other Local Agency
About this bridge
E. 100 S. over Marsh Creek is a concrete frame carrying E. 100 S. over Marsh Creek in Cassia County, Idaho. It was built in 1999, so it is 26 years old, younger 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 100 vehicles a day, roughly 7% of them trucks, projected to reach 150 by 2039. The structure is 25 ft (7.7 m) long and 48 ft wide. If it were closed, the detour would be 98.8 mi (159 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| 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 E. 100 S. over Marsh Creek built?
It was built in 1999, making it 26 years old in 2025.
What condition is E. 100 S. over Marsh 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 October 2023.
How much traffic does E. 100 S. over Marsh Creek carry?
About 100 vehicles per day (2023 count), of which roughly 7% are trucks.
How long is E. 100 S. over Marsh Creek?
The structure is 25 ft (7.7 m) long with a longest span of 23 ft (7 m) and a deck 48 ft wide.
Who owns E. 100 S. over Marsh Creek?
It is owned by the Other Local Agency.