474 Avenue over North Fork Yellow Bank R
FairGrant County, South Dakota · 4W & 4.6S Milbank · Structure no. 000000026250116
- Built
- 2013
- 12 years old
- Condition
- Fair
- inspected September 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 36 ft
- 1 main span
- Daily traffic
- 20
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
474 Avenue over North Fork Yellow Bank R is a prestressed concrete tee beam carrying 474 Avenue over North Fork Yellow Bank R in Grant County, South Dakota. It was built in 2013, so it is 12 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 fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 20 vehicles a day, roughly 2% of them trucks, projected to reach 20 by 2032. The structure is 36 ft (10.9 m) long and 27 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 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 474 Avenue over North Fork Yellow Bank R built?
It was built in 2013, making it 12 years old in 2025.
What condition is 474 Avenue over North Fork Yellow Bank R in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2024.
How much traffic does 474 Avenue over North Fork Yellow Bank R carry?
About 20 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is 474 Avenue over North Fork Yellow Bank R?
The structure is 36 ft (10.9 m) long with a longest span of 33 ft (10.1 m) and a deck 27 ft wide.
Who owns 474 Avenue over North Fork Yellow Bank R?
It is owned by the County Highway Agency.