Mason-Morrow-Millg over Grays Run
FairWarren County, Ohio · 0.19 MI E of TR 84 · Structure no. 8331545
- Built
- 1930
- 95 years old, rebuilt 1987
- Condition
- Fair
- inspected November 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 33 ft
- 1 main span
- Daily traffic
- 639
- 2015 count
- Owner
- County
- County Highway Agency
About this bridge
Mason-Morrow-Millg over Grays Run is a prestressed concrete box beam or girders - multiple carrying Mason-Morrow-Millg over Grays Run in Warren County, Ohio. It was built in 1930 and reconstructed in 1987, so it is 95 years old, older 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 639 vehicles a day, roughly 8% of them trucks, projected to reach 887 by 2035. The structure is 33 ft (10.1 m) long and 24 ft wide. If it were closed, the detour would be 6.2 mi (10 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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Mason-Morrow-Millg over Grays Run built?
It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1987.
What condition is Mason-Morrow-Millg over Grays Run 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 November 2024.
How much traffic does Mason-Morrow-Millg over Grays Run carry?
About 639 vehicles per day (2015 count), of which roughly 8% are trucks.
How long is Mason-Morrow-Millg over Grays Run?
The structure is 33 ft (10.1 m) long with a longest span of 30 ft (9.1 m) and a deck 24 ft wide.
Who owns Mason-Morrow-Millg over Grays Run?
It is owned by the County Highway Agency.