Parkinson Road over Cub River
PoorFranklin County, Idaho · In Franklin;parkinson Rd. · Structure no. 000000000023345
- Built
- 1926
- 99 years old
- Condition
- Poor
- inspected September 2024
- Type
- Stringer/Multi-beam or Girder
- Concrete
- Length
- 51 ft
- 2 main spans
- Daily traffic
- 310
- 2023 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Parkinson Road over Cub River is a concrete stringer/multi-beam or girder carrying Parkinson Road over Cub River in Franklin County, Idaho. It was built in 1926, so it is 99 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 310 vehicles a day, roughly 11% of them trucks, projected to reach 465 by 2042. The structure is 51 ft (15.5 m) long and 26 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Parkinson Road over Cub River built?
It was built in 1926, making it 99 years old in 2025.
What condition is Parkinson Road over Cub 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 September 2024.
How much traffic does Parkinson Road over Cub River carry?
About 310 vehicles per day (2023 count), of which roughly 11% are trucks.
How long is Parkinson Road over Cub River?
The structure is 51 ft (15.5 m) long with a longest span of 24 ft (7.3 m) and a deck 26 ft wide.
Who owns Parkinson Road over Cub River?
It is owned by the City or Municipal Highway Agency.