474 Ave over Ck
PoorPosted for loadGrant County, South Dakota · 3.0E & 5.8S Twin Brooks · Structure no. 000000026250138
- Built
- 1901
- 124 years old
- Condition
- Poor
- inspected September 2024
- Type
- Slab
- Wood or Timber
- Length
- 24 ft
- 1 main span
- Daily traffic
- 25
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
474 Ave over Ck is a wood or timber slab carrying 474 Ave over Ck in Grant County, South Dakota. It was built in 1901, so it is 124 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 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 25 vehicles a day, roughly 2% of them trucks, projected to reach 25 by 2032. The structure is 24 ft (7.4 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 4 Poor | Advanced section loss, deterioration, 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 474 Ave over Ck built?
It was built in 1901, making it 124 years old in 2025.
What condition is 474 Ave over Ck 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 474 Ave over Ck carry?
About 25 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is 474 Ave over Ck?
The structure is 24 ft (7.4 m) long with a longest span of 24 ft (7.3 m) and a deck 24 ft wide.
Who owns 474 Ave over Ck?
It is owned by the County Highway Agency.