487th Ave HWY 103 over Split Rock Creek
FairMinnehaha County, South Dakota · 2E & 2.4N Garretson · Structure no. 000000050330066
- Built
- 1977
- 48 years old
- Condition
- Fair
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 213 ft
- 3 main spans
- Daily traffic
- 268
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
487th Ave HWY 103 over Split Rock Creek is a steel continuous stringer/multi-beam or girder carrying 487th Ave HWY 103 over Split Rock Creek in Minnehaha County, South Dakota. It was built in 1977, so it is 48 years old, younger than the South Dakota average of 48.9 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 268 vehicles a day, roughly 2% of them trucks, projected to reach 311 by 2038. The structure is 213 ft (64.9 m) long and 35 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| 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 487th Ave HWY 103 over Split Rock Creek built?
It was built in 1977, making it 48 years old in 2025.
What condition is 487th Ave HWY 103 over Split Rock 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 July 2024.
How much traffic does 487th Ave HWY 103 over Split Rock Creek carry?
About 268 vehicles per day (2023 count), of which roughly 2% are trucks.
How long is 487th Ave HWY 103 over Split Rock Creek?
The structure is 213 ft (64.9 m) long with a longest span of 82 ft (25 m) and a deck 35 ft wide.
Who owns 487th Ave HWY 103 over Split Rock Creek?
It is owned by the County Highway Agency.