US 18 over Drainage Ditch
FairFayette County, Iowa · 0.1 Mi. W of Jct. SR W14 · Structure no. 000000000024390
- Built
- 1925
- 100 years old, rebuilt 1963
- Condition
- Fair
- inspected October 2024
- Type
- Slab
- Concrete Continuous
- Length
- 54 ft
- 2 main spans
- Daily traffic
- 1,880
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
US 18 over Drainage Ditch is a concrete continuous slab carrying US 18 over Drainage Ditch in Fayette County, Iowa. It was built in 1925 and reconstructed in 1963, so it is 100 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 1,880 vehicles a day, roughly 20% of them trucks, projected to reach 1,880 by 2044. The structure is 54 ft (16.5 m) long and 49 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 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 18 over Drainage Ditch built?
It was built in 1925, making it 100 years old in 2025. It was reconstructed in 1963.
What condition is US 18 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 October 2024.
How much traffic does US 18 over Drainage Ditch carry?
About 1,880 vehicles per day (2022 count), of which roughly 20% are trucks.
How long is US 18 over Drainage Ditch?
The structure is 54 ft (16.5 m) long with a longest span of 26 ft (7.9 m) and a deck 49 ft wide.
Who owns US 18 over Drainage Ditch?
It is owned by the State Highway Agency.