US 59 over Drainage Ditch
FairShelby County, Iowa · 2.6 Mi. N of Jct. I-80 · Structure no. 000000000047770
- Built
- 1970
- 55 years old
- Condition
- Fair
- inspected May 2024
- Type
- Slab
- Concrete Continuous
- Length
- 63 ft
- 3 main spans
- Daily traffic
- 4,940
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 59 over Drainage Ditch is a concrete continuous slab carrying US 59 over Drainage Ditch in Shelby County, Iowa. It was built in 1970, so it is 55 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 4,940 vehicles a day, roughly 18% of them trucks, projected to reach 4,940 by 2043. The structure is 63 ft (19.2 m) long and 47 ft wide. If it were closed, the detour would be 13 mi (21 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 59 over Drainage Ditch built?
It was built in 1970, making it 55 years old in 2025.
What condition is US 59 over Drainage Ditch 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 May 2024.
How much traffic does US 59 over Drainage Ditch carry?
About 4,940 vehicles per day (2023 count), of which roughly 18% are trucks.
How long is US 59 over Drainage Ditch?
The structure is 63 ft (19.2 m) long with a longest span of 24 ft (7.3 m) and a deck 47 ft wide.
Who owns US 59 over Drainage Ditch?
It is owned by the State Highway Agency.