483 Avenue over Whetstone Rv
PoorClosed to trafficGrant County, South Dakota · 4.8E & 3.2N Milbank · Structure no. 000000026338038
- Built
- 1962
- 63 years old
- Condition
- Poor
- inspected August 2016
- Type
- Truss - Thru
- Steel
- Length
- 98 ft
- 2 main spans
- Daily traffic
- 25
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
483 Avenue over Whetstone Rv is a steel truss - thru carrying 483 Avenue over Whetstone Rv in Grant County, South Dakota. It was built in 1962, so it is 63 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 poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: closed to all traffic.
It carries about 25 vehicles a day, roughly 2% of them trucks, projected to reach 25 by 2032. The structure is 98 ft (29.9 m) long and 19 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| 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 483 Avenue over Whetstone Rv built?
It was built in 1962, making it 63 years old in 2025.
What condition is 483 Avenue over Whetstone Rv in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in August 2016.
How much traffic does 483 Avenue over Whetstone Rv carry?
About 25 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is 483 Avenue over Whetstone Rv?
The structure is 98 ft (29.9 m) long with a longest span of 51 ft (15.5 m) and a deck 19 ft wide.
Who owns 483 Avenue over Whetstone Rv?
It is owned by the County Highway Agency.