Neptune-Mendon RD over Twelve Mile Creek
FairMercer County, Ohio · W of Cel-Men RD 0.3 MI · Structure no. 5455553
- Built
- 1991
- 34 years old
- Condition
- Fair
- inspected December 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 76 ft
- 1 main span
- Daily traffic
- 165
- 2015 count
- Owner
- County
- County Highway Agency
About this bridge
Neptune-Mendon RD over Twelve Mile Creek is a prestressed concrete box beam or girders - multiple carrying Neptune-Mendon RD over Twelve Mile Creek in Mercer County, Ohio. It was built in 1991, so it is 34 years old, younger than the Ohio average of 47.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 165 vehicles a day, roughly 7% of them trucks, projected to reach 229 by 2035. The structure is 76 ft (23.2 m) long and 24 ft wide. If it were closed, the detour would be 3.7 mi (6 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 9 Excellent | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Neptune-Mendon RD over Twelve Mile Creek built?
It was built in 1991, making it 34 years old in 2025.
What condition is Neptune-Mendon RD over Twelve Mile Creek in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in December 2024.
How much traffic does Neptune-Mendon RD over Twelve Mile Creek carry?
About 165 vehicles per day (2015 count), of which roughly 7% are trucks.
How long is Neptune-Mendon RD over Twelve Mile Creek?
The structure is 76 ft (23.2 m) long with a longest span of 75 ft (22.9 m) and a deck 24 ft wide.
Who owns Neptune-Mendon RD over Twelve Mile Creek?
It is owned by the County Highway Agency.