Local over Trib to Mason Creek
PoorGuthrie County, Iowa · 079321306 · Structure no. 000000000168131
- Built
- 1977
- 48 years old
- Condition
- Poor
- inspected November 2023
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 32 ft
- 1 main span
- Daily traffic
- 40
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
Local over Trib to Mason Creek is a prestressed concrete tee beam carrying Local over Trib to Mason Creek in Guthrie County, Iowa. It was built in 1977, so it is 48 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.
It carries about 40 vehicles a day, projected to reach 40 by 2043. The structure is 32 ft (9.8 m) long and 24 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 | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| 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 Local over Trib to Mason Creek built?
It was built in 1977, making it 48 years old in 2025.
What condition is Local over Trib to 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 Trib to Mason Creek carry?
About 40 vehicles per day (2022 count).
How long is Local over Trib to Mason Creek?
The structure is 32 ft (9.8 m) long with a longest span of 30 ft (9.1 m) and a deck 24 ft wide.
Who owns Local over Trib to Mason Creek?
It is owned by the County Highway Agency.