S.R. 521 over Little Walnut Creek
FairDelaware County, Ohio · 0.39 MI E of I71 · Structure no. 2103575
- Built
- 1962
- 63 years old
- Condition
- Fair
- inspected November 2024
- Type
- Slab
- Concrete Continuous
- Length
- 67 ft
- 3 main spans
- Daily traffic
- 1,759
- 2015 count
- Owner
- State
- State Highway Agency
About this bridge
S.R. 521 over Little Walnut Creek is a concrete continuous slab carrying S.R. 521 over Little Walnut Creek in Delaware County, Ohio. It was built in 1962, so it is 63 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 5 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 1,759 vehicles a day, roughly 11% of them trucks, projected to reach 2,441 by 2035. The structure is 67 ft (20.3 m) long and 36 ft wide. If it were closed, the detour would be 5 mi (8 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S.R. 521 over Little Walnut Creek built?
It was built in 1962, making it 63 years old in 2025.
What condition is S.R. 521 over Little Walnut 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 November 2024.
How much traffic does S.R. 521 over Little Walnut Creek carry?
About 1,759 vehicles per day (2015 count), of which roughly 11% are trucks.
How long is S.R. 521 over Little Walnut Creek?
The structure is 67 ft (20.3 m) long with a longest span of 25 ft (7.6 m) and a deck 36 ft wide.
Who owns S.R. 521 over Little Walnut Creek?
It is owned by the State Highway Agency.