FM over Tarkio Creek
PoorPosted for loadMontgomery County, Iowa · 071373201 · Structure no. 000000000254550
- Built
- 1955
- 70 years old
- Condition
- Poor
- inspected May 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 153 ft
- 3 main spans
- Daily traffic
- 219
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
FM over Tarkio Creek is a steel continuous stringer/multi-beam or girder carrying FM over Tarkio Creek 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 219 vehicles a day, projected to reach 219 by 2044. The structure is 153 ft (46.6 m) long and 23 ft wide. If it were closed, the detour would be 5 mi (8 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 | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was FM over Tarkio Creek built?
It was built in 1955, making it 70 years old in 2025.
What condition is FM over Tarkio Creek 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 May 2024.
How much traffic does FM over Tarkio Creek carry?
About 219 vehicles per day (2021 count).
How long is FM over Tarkio Creek?
The structure is 153 ft (46.6 m) long with a longest span of 59 ft (18 m) and a deck 23 ft wide.
Who owns FM over Tarkio Creek?
It is owned by the County Highway Agency.