451st Avenue over East Vermillion Lake
FairMcCook County, South Dakota · 7.1S of Montrose · Structure no. 000000044210177
- Built
- 1958
- 67 years old
- Condition
- Fair
- inspected July 2024
- Type
- Slab
- Concrete Continuous
- Length
- 106 ft
- 5 main spans
- Daily traffic
- 675
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
451st Avenue over East Vermillion Lake is a concrete continuous slab carrying 451st Avenue over East Vermillion Lake in McCook County, South Dakota. It was built in 1958, so it is 67 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 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 675 vehicles a day, roughly 3% of them trucks, projected to reach 675 by 2032. The structure is 106 ft (32.2 m) long and 34 ft wide. If it were closed, the detour would be 9.9 mi (16 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 451st Avenue over East Vermillion Lake built?
It was built in 1958, making it 67 years old in 2025.
What condition is 451st Avenue over East Vermillion Lake 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 July 2024.
How much traffic does 451st Avenue over East Vermillion Lake carry?
About 675 vehicles per day (2022 count), of which roughly 3% are trucks.
How long is 451st Avenue over East Vermillion Lake?
The structure is 106 ft (32.2 m) long with a longest span of 23 ft (6.9 m) and a deck 34 ft wide.
Who owns 451st Avenue over East Vermillion Lake?
It is owned by the County Highway Agency.