US 421 over Mcclamrock Ditch
GoodClinton County, Indiana · 01.07 S SR 38 · Structure no. 032155
- Built
- 1973
- 52 years old, rebuilt 1992
- Condition
- Good
- inspected February 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 72 ft
- 3 main spans
- Daily traffic
- 4,564
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
US 421 over Mcclamrock Ditch is a prestressed concrete continuous box beam or girders - multiple carrying US 421 over Mcclamrock Ditch in Clinton County, Indiana. It was built in 1973 and reconstructed in 1992, so it is 52 years old, older 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 4,564 vehicles a day, roughly 10% of them trucks, projected to reach 5,470 by 2034. The structure is 72 ft (21.9 m) long and 47 ft wide. If it were closed, the detour would be 5 mi (8 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 | 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 421 over Mcclamrock Ditch built?
It was built in 1973, making it 52 years old in 2025. It was reconstructed in 1992.
What condition is US 421 over Mcclamrock 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 February 2023.
How much traffic does US 421 over Mcclamrock Ditch carry?
About 4,564 vehicles per day (2021 count), of which roughly 10% are trucks.
How long is US 421 over Mcclamrock Ditch?
The structure is 72 ft (21.9 m) long with a longest span of 28 ft (8.5 m) and a deck 47 ft wide.
Who owns US 421 over Mcclamrock Ditch?
It is owned by the State Highway Agency.