Middle Fork Road over M.Fk.Weiser River
PoorPosted for loadAdams County, Idaho · 7.3 W 3.4 S Donnelly · Structure no. 000000000026533
- Built
- 1957
- 68 years old
- Condition
- Poor
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Wood or Timber
- Length
- 32 ft
- 1 main span
- Daily traffic
- 70
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
Middle Fork Road over M.Fk.Weiser River is a wood or timber stringer/multi-beam or girder carrying Middle Fork Road over M.Fk.Weiser River in Adams County, Idaho. It was built in 1957, so it is 68 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. Its operating status is: posted for load restriction.
It carries about 70 vehicles a day, roughly 40% of them trucks, projected to reach 105 by 2042. The structure is 32 ft (9.8 m) long and 16 ft wide. If it were closed, the detour would be 29.8 mi (48 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 | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Middle Fork Road over M.Fk.Weiser River built?
It was built in 1957, making it 68 years old in 2025.
What condition is Middle Fork Road over M.Fk.Weiser 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 August 2024.
How much traffic does Middle Fork Road over M.Fk.Weiser River carry?
About 70 vehicles per day (2023 count), of which roughly 40% are trucks.
How long is Middle Fork Road over M.Fk.Weiser River?
The structure is 32 ft (9.8 m) long with a longest span of 31 ft (9.4 m) and a deck 16 ft wide.
Who owns Middle Fork Road over M.Fk.Weiser River?
It is owned by the County Highway Agency.