W. Milbank St-Milb over South Fork Whetstone Rv
PoorPosted for loadGrant County, South Dakota · 0.6W Milbank · Structure no. 000000026284070
- Built
- 1984
- 41 years old
- Condition
- Poor
- inspected September 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 65 ft
- 1 main span
- Daily traffic
- 696
- 2022 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
W. Milbank St-Milb over South Fork Whetstone Rv is a prestressed concrete tee beam carrying W. Milbank St-Milb over South Fork Whetstone Rv in Grant County, South Dakota. It was built in 1984, so it is 41 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 poor condition with a lowest component rating of 4 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: posted for load restriction.
It carries about 696 vehicles a day, roughly 2% of them trucks, projected to reach 696 by 2029. The structure is 65 ft (19.8 m) long and 35 ft wide. If it were closed, the detour would be 0.6 mi (1 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was W. Milbank St-Milb over South Fork Whetstone Rv built?
It was built in 1984, making it 41 years old in 2025.
What condition is W. Milbank St-Milb over South Fork 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 September 2024.
How much traffic does W. Milbank St-Milb over South Fork Whetstone Rv carry?
About 696 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is W. Milbank St-Milb over South Fork Whetstone Rv?
The structure is 65 ft (19.8 m) long with a longest span of 63 ft (19.2 m) and a deck 35 ft wide.
Who owns W. Milbank St-Milb over South Fork Whetstone Rv?
It is owned by the Town or Township Highway Agency.