Local over Trib Tarkio
PoorPosted for loadMontgomery County, Iowa · 072372804 · Structure no. 000000000255400
- Built
- 1955
- 70 years old
- Condition
- Poor
- inspected June 2024
- Type
- Stringer/Multi-beam or Girder
- Wood or Timber
- Length
- 62 ft
- 3 main spans
- Daily traffic
- 5
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
Local over Trib Tarkio is a wood or timber stringer/multi-beam or girder carrying Local over Trib Tarkio in Montgomery County, Iowa. It was built in 1955, so it is 70 years old, older than the Iowa average of 45.5 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 5 vehicles a day, projected to reach 5 by 2044. The structure is 62 ft (18.9 m) long and 19 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Local over Trib Tarkio built?
It was built in 1955, making it 70 years old in 2025.
What condition is Local over Trib Tarkio 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 June 2024.
How much traffic does Local over Trib Tarkio carry?
About 5 vehicles per day (2021 count).
How long is Local over Trib Tarkio?
The structure is 62 ft (18.9 m) long with a longest span of 31 ft (9.4 m) and a deck 19 ft wide.
Who owns Local over Trib Tarkio?
It is owned by the County Highway Agency.