138th Street over N. Fork Whetstone Rv
PoorPosted for loadRoberts County, South Dakota · 2.8E & 1.8S of Wilmot · Structure no. 000000055208380
- Built
- 1965
- 60 years old
- Condition
- Poor
- inspected June 2024
- Type
- Stringer/Multi-beam or Girder
- Wood or Timber
- Length
- 40 ft
- 2 main spans
- Daily traffic
- 35
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
138th Street over N. Fork Whetstone Rv is a wood or timber stringer/multi-beam or girder carrying 138th Street over N. Fork Whetstone Rv in Roberts County, South Dakota. It was built in 1965, so it is 60 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: posted for load restriction.
It carries about 35 vehicles a day, roughly 2% of them trucks, projected to reach 35 by 2032. The structure is 40 ft (12.2 m) long and 26 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 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 | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| 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 138th Street over N. Fork Whetstone Rv built?
It was built in 1965, making it 60 years old in 2025.
What condition is 138th Street over N. 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 June 2024.
How much traffic does 138th Street over N. Fork Whetstone Rv carry?
About 35 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is 138th Street over N. Fork Whetstone Rv?
The structure is 40 ft (12.2 m) long with a longest span of 20 ft (6.1 m) and a deck 26 ft wide.
Who owns 138th Street over N. Fork Whetstone Rv?
It is owned by the County Highway Agency.