US 30 over Ditch #77
FairCarroll County, Iowa · 1.1 Mi. E. of Jct. US 71 · Structure no. 000000000017090
- Built
- 1919
- 106 years old, rebuilt 1974
- Condition
- Fair
- inspected February 2023
- Type
- Slab
- Concrete
- Length
- 25 ft
- 1 main span
- Daily traffic
- 13,000
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
US 30 over Ditch #77 is a concrete slab carrying US 30 over Ditch #77 in Carroll County, Iowa. It was built in 1919 and reconstructed in 1974, so it is 106 years old, older than the Iowa average of 45.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 13,000 vehicles a day, roughly 8% of them trucks, projected to reach 13,000 by 2043. The structure is 25 ft (7.6 m) long and 142 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 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 30 over Ditch #77 built?
It was built in 1919, making it 106 years old in 2025. It was reconstructed in 1974.
What condition is US 30 over Ditch #77 in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in February 2023.
How much traffic does US 30 over Ditch #77 carry?
About 13,000 vehicles per day (2022 count), of which roughly 8% are trucks.
How long is US 30 over Ditch #77?
The structure is 25 ft (7.6 m) long with a longest span of 25 ft (7.6 m) and a deck 142 ft wide.
Who owns US 30 over Ditch #77?
It is owned by the State Highway Agency.