Local over Mason Creek
PoorPosted for loadGuthrie County, Iowa · 079322808 · Structure no. 000000000168310
- Built
- 1920
- 105 years old, rebuilt 1959
- Condition
- Poor
- inspected November 2023
- Type
- Truss - Thru
- Steel
- Length
- 62 ft
- 1 main span
- Daily traffic
- 11
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
Local over Mason Creek is a steel truss - thru carrying Local over Mason Creek in Guthrie County, Iowa. It was built in 1920 and reconstructed in 1959, so it is 105 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 11 vehicles a day, projected to reach 11 by 2043. The structure is 62 ft (18.9 m) long and 18 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, 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 Mason Creek built?
It was built in 1920, making it 105 years old in 2025. It was reconstructed in 1959.
What condition is Local over Mason 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 November 2023.
How much traffic does Local over Mason Creek carry?
About 11 vehicles per day (2022 count).
How long is Local over Mason Creek?
The structure is 62 ft (18.9 m) long with a longest span of 60 ft (18.3 m) and a deck 18 ft wide.
Who owns Local over Mason Creek?
It is owned by the County Highway Agency.