N 3185 E over Fall River
FairFremont County, Idaho · 0.3 N. 2.6 E. Chester · Structure no. 000000000032070
- Built
- 1977
- 48 years old
- Condition
- Fair
- inspected November 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 120 ft
- 2 main spans
- Daily traffic
- 50
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
N 3185 E over Fall River is a prestressed concrete tee beam carrying N 3185 E over Fall River in Fremont County, Idaho. It was built in 1977, so it is 48 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 50 vehicles a day, roughly 10% of them trucks, projected to reach 75 by 2039. The structure is 120 ft (36.6 m) long and 28 ft wide. If it were closed, the detour would be 6.2 mi (10 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 | 8 Very Good | No problems noted. |
| 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 N 3185 E over Fall River built?
It was built in 1977, making it 48 years old in 2025.
What condition is N 3185 E over Fall River 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 November 2024.
How much traffic does N 3185 E over Fall River carry?
About 50 vehicles per day (2023 count), of which roughly 10% are trucks.
How long is N 3185 E over Fall River?
The structure is 120 ft (36.6 m) long with a longest span of 59 ft (18 m) and a deck 28 ft wide.
Who owns N 3185 E over Fall River?
It is owned by the County Highway Agency.