Duncanson RD #139 over Flat Run
GoodPosted for loadHighland County, Ohio · South of CR.#2 · Structure no. 3633756
- Built
- 1984
- 41 years old, rebuilt 2002
- Condition
- Good
- inspected March 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 33 ft
- 1 main span
- Daily traffic
- 324
- 2015 count
- Owner
- County
- County Highway Agency
About this bridge
Duncanson RD #139 over Flat Run is a steel stringer/multi-beam or girder carrying Duncanson RD #139 over Flat Run in Highland County, Ohio. It was built in 1984 and reconstructed in 2002, so it is 41 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. Its operating status is: posted for load restriction.
It carries about 324 vehicles a day, roughly 7% of them trucks, projected to reach 450 by 2035. The structure is 33 ft (10.1 m) long and 22 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 8 Very Good | No problems noted. |
| 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 Duncanson RD #139 over Flat Run built?
It was built in 1984, making it 41 years old in 2025. It was reconstructed in 2002.
What condition is Duncanson RD #139 over Flat Run 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 March 2024.
How much traffic does Duncanson RD #139 over Flat Run carry?
About 324 vehicles per day (2015 count), of which roughly 7% are trucks.
How long is Duncanson RD #139 over Flat Run?
The structure is 33 ft (10.1 m) long with a longest span of 31 ft (9.4 m) and a deck 22 ft wide.
Who owns Duncanson RD #139 over Flat Run?
It is owned by the County Highway Agency.