143rd Ave. over Boxelder Ck
FairMeade County, South Dakota · 16E & 17.7S Sturgis · Structure no. 000000047190607
- Built
- 1966
- 59 years old
- Condition
- Fair
- inspected July 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 71 ft
- 2 main spans
- Daily traffic
- 15
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
143rd Ave. over Boxelder Ck is a prestressed concrete tee beam carrying 143rd Ave. over Boxelder Ck in Meade County, South Dakota. It was built in 1966, so it is 59 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 6 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 15 vehicles a day, roughly 2% of them trucks, projected to reach 15 by 2032. The structure is 71 ft (21.6 m) long and 23 ft wide. If it were closed, the detour would be 18 mi (29 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 | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 143rd Ave. over Boxelder Ck built?
It was built in 1966, making it 59 years old in 2025.
What condition is 143rd Ave. over Boxelder Ck 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 143rd Ave. over Boxelder Ck carry?
About 15 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is 143rd Ave. over Boxelder Ck?
The structure is 71 ft (21.6 m) long with a longest span of 38 ft (11.6 m) and a deck 23 ft wide.
Who owns 143rd Ave. over Boxelder Ck?
It is owned by the County Highway Agency.