SR 18 over Ridenour Ditch
GoodCarroll County, Indiana · 02.88 W SR 29 · Structure no. 004681
- Built
- 2022
- 3 years old
- Condition
- Good
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 137 ft
- 3 main spans
- Daily traffic
- 3,011
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
SR 18 over Ridenour Ditch is a prestressed concrete continuous stringer/multi-beam or girder carrying SR 18 over Ridenour Ditch in Carroll County, Indiana. It was built in 2022, so it is 3 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 3,011 vehicles a day, roughly 11% of them trucks, projected to reach 3,566 by 2042. The structure is 137 ft (41.9 m) long and 50 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 | 9 Excellent | No problems noted. |
| Superstructure | 9 Excellent | No problems noted. |
| Substructure | 9 Excellent | No problems noted. |
| Channel and channel protection | 9 Excellent | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SR 18 over Ridenour Ditch built?
It was built in 2022, making it 3 years old in 2025.
What condition is SR 18 over Ridenour 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 July 2024.
How much traffic does SR 18 over Ridenour Ditch carry?
About 3,011 vehicles per day (2022 count), of which roughly 11% are trucks.
How long is SR 18 over Ridenour Ditch?
The structure is 137 ft (41.9 m) long with a longest span of 56 ft (17 m) and a deck 50 ft wide.
Who owns SR 18 over Ridenour Ditch?
It is owned by the State Highway Agency.