170th Street over James River
GoodSpink County, South Dakota · 3N 1.2E Redfield · Structure no. 000000058112220
- Built
- 1981
- 44 years old
- Condition
- Good
- inspected September 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 223 ft
- 3 main spans
- Daily traffic
- 55
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
170th Street over James River is a steel continuous stringer/multi-beam or girder carrying 170th Street over James River in Spink County, South Dakota. It was built in 1981, so it is 44 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 55 vehicles a day, roughly 3% of them trucks, projected to reach 55 by 2032. The structure is 223 ft (68 m) long and 33 ft wide. If it were closed, the detour would be 8.1 mi (13 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| 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 170th Street over James River built?
It was built in 1981, making it 44 years old in 2025.
What condition is 170th Street over James 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 170th Street over James River carry?
About 55 vehicles per day (2022 count), of which roughly 3% are trucks.
How long is 170th Street over James River?
The structure is 223 ft (68 m) long with a longest span of 85 ft (25.9 m) and a deck 33 ft wide.
Who owns 170th Street over James River?
It is owned by the County Highway Agency.