M Avenue over Middle Tarkio River
PoorPosted for loadPage County, Iowa · 070370506 · Structure no. 000000000267860
- Built
- 1951
- 74 years old, rebuilt 1983
- Condition
- Poor
- inspected November 2023
- Type
- Truss - Thru
- Steel
- Length
- 162 ft
- 1 main span
- Daily traffic
- 5
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
M Avenue over Middle Tarkio River is a steel truss - thru carrying M Avenue over Middle Tarkio River in Page County, Iowa. It was built in 1951 and reconstructed in 1983, so it is 74 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 2043. The structure is 162 ft (49.4 m) long and 16 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 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 M Avenue over Middle Tarkio River built?
It was built in 1951, making it 74 years old in 2025. It was reconstructed in 1983.
What condition is M Avenue over Middle Tarkio 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 November 2023.
How much traffic does M Avenue over Middle Tarkio River carry?
About 5 vehicles per day (2022 count).
How long is M Avenue over Middle Tarkio River?
The structure is 162 ft (49.4 m) long with a longest span of 90 ft (27.4 m) and a deck 16 ft wide.
Who owns M Avenue over Middle Tarkio River?
It is owned by the County Highway Agency.