SR 81 over Ottawa River
GoodAllen County, Ohio · West Edge of Allentown · Structure no. 0203343
- Built
- 1999
- 26 years old
- Condition
- Good
- inspected September 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 124 ft
- 2 main spans
- Daily traffic
- 2,358
- 2015 count
- Owner
- State
- State Highway Agency
About this bridge
SR 81 over Ottawa River is a prestressed concrete continuous box beam or girders - multiple carrying SR 81 over Ottawa River in Allen County, Ohio. It was built in 1999, so it is 26 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 2,358 vehicles a day, roughly 1% of them trucks, projected to reach 3,273 by 2035. The structure is 124 ft (37.9 m) long and 40 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 | 8 Very Good | No problems noted. |
| 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 SR 81 over Ottawa River built?
It was built in 1999, making it 26 years old in 2025.
What condition is SR 81 over Ottawa River 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 September 2024.
How much traffic does SR 81 over Ottawa River carry?
About 2,358 vehicles per day (2015 count), of which roughly 1% are trucks.
How long is SR 81 over Ottawa River?
The structure is 124 ft (37.9 m) long with a longest span of 64 ft (19.6 m) and a deck 40 ft wide.
Who owns SR 81 over Ottawa River?
It is owned by the State Highway Agency.