SR 18 over Wise Ditch
GoodMiami County, Indiana · 02.17 E US 31 · Structure no. 004710
- Built
- 1991
- 34 years old
- Condition
- Good
- inspected August 2023
- Type
- Slab
- Concrete Continuous
- Length
- 58 ft
- 3 main spans
- Daily traffic
- 1,324
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
SR 18 over Wise Ditch is a concrete continuous slab carrying SR 18 over Wise Ditch in Miami County, Indiana. It was built in 1991, so it is 34 years old, younger than the Indiana average of 46.6 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 1,324 vehicles a day, roughly 20% of them trucks, projected to reach 3,837 by 2032. The structure is 58 ft (17.8 m) long and 48 ft wide. If it were closed, the detour would be 3.7 mi (6 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SR 18 over Wise Ditch built?
It was built in 1991, making it 34 years old in 2025.
What condition is SR 18 over Wise Ditch in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2023.
How much traffic does SR 18 over Wise Ditch carry?
About 1,324 vehicles per day (2020 count), of which roughly 20% are trucks.
How long is SR 18 over Wise Ditch?
The structure is 58 ft (17.8 m) long with a longest span of 22 ft (6.7 m) and a deck 48 ft wide.
Who owns SR 18 over Wise Ditch?
It is owned by the State Highway Agency.