Irwin Rd. over Little Darby
GoodMadison County, Ohio · 2.80 Mi.N. of C.R.25 · Structure no. 4931491
- Built
- 1998
- 27 years old
- Condition
- Good
- inspected January 2025
- Type
- Truss - Thru
- Steel
- Length
- 85 ft
- 1 main span
- Daily traffic
- 72
- 2015 count
- Owner
- County
- County Highway Agency
About this bridge
Irwin Rd. over Little Darby is a steel truss - thru carrying Irwin Rd. over Little Darby in Madison County, Ohio. It was built in 1998, so it is 27 years old, younger than the Ohio average of 47.3 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 72 vehicles a day, roughly 7% of them trucks, projected to reach 100 by 2035. The structure is 85 ft (25.9 m) long and 24 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 | 8 Very Good | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Irwin Rd. over Little Darby built?
It was built in 1998, making it 27 years old in 2025.
What condition is Irwin Rd. over Little Darby 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 January 2025.
How much traffic does Irwin Rd. over Little Darby carry?
About 72 vehicles per day (2015 count), of which roughly 7% are trucks.
How long is Irwin Rd. over Little Darby?
The structure is 85 ft (25.9 m) long with a longest span of 82 ft (25 m) and a deck 24 ft wide.
Who owns Irwin Rd. over Little Darby?
It is owned by the County Highway Agency.