104th Street over Hump Creek
PoorPosted for loadCorson County, South Dakota · 2.5E & 2S Watauga · Structure no. 000000016252040
- Built
- 1930
- 95 years old
- Condition
- Poor
- inspected June 2024
- Type
- Truss - Thru
- Steel
- Length
- 42 ft
- 1 main span
- Daily traffic
- 30
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
104th Street over Hump Creek is a steel truss - thru carrying 104th Street over Hump Creek in Corson County, South Dakota. It was built in 1930, so it is 95 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 30 vehicles a day, roughly 2% of them trucks, projected to reach 119 by 2032. The structure is 42 ft (12.8 m) long and 16 ft wide. If it were closed, the detour would be 13 mi (21 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Substructure | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| 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 104th Street over Hump Creek built?
It was built in 1930, making it 95 years old in 2025.
What condition is 104th Street over Hump Creek 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 104th Street over Hump Creek carry?
About 30 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is 104th Street over Hump Creek?
The structure is 42 ft (12.8 m) long with a longest span of 39 ft (11.9 m) and a deck 16 ft wide.
Who owns 104th Street over Hump Creek?
It is owned by the County Highway Agency.