470th Avenue over Harem Creek
FairLincoln County, South Dakota · 11.1S & 4E of Lennox · Structure no. 000000042060221
- Built
- 1963
- 62 years old
- Condition
- Fair
- inspected May 2024
- Type
- Slab
- Concrete Continuous
- Length
- 58 ft
- 3 main spans
- Daily traffic
- 50
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
470th Avenue over Harem Creek is a concrete continuous slab carrying 470th Avenue over Harem Creek in Lincoln County, South Dakota. It was built in 1963, so it is 62 years old, older 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 50 vehicles a day, roughly 2% of them trucks, projected to reach 50 by 2032. The structure is 58 ft (17.8 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 470th Avenue over Harem Creek built?
It was built in 1963, making it 62 years old in 2025.
What condition is 470th Avenue over Harem 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 May 2024.
How much traffic does 470th Avenue over Harem Creek carry?
About 50 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is 470th Avenue over Harem Creek?
The structure is 58 ft (17.8 m) long with a longest span of 23 ft (6.9 m) and a deck 32 ft wide.
Who owns 470th Avenue over Harem Creek?
It is owned by the County Highway Agency.