Nemo RD over Boxelder Ck
FairPennington County, South Dakota · 10.3W 3.8N Rapid City · Structure no. 000000052311263
- Built
- 1972
- 53 years old
- Condition
- Fair
- inspected June 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 100 ft
- 3 main spans
- Daily traffic
- 974
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
Nemo RD over Boxelder Ck is a prestressed concrete tee beam carrying Nemo RD over Boxelder Ck in Pennington County, South Dakota. It was built in 1972, so it is 53 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 974 vehicles a day, roughly 3% of them trucks, projected to reach 974 by 2032. The structure is 100 ft (30.5 m) long and 31 ft wide. If it were closed, the detour would be 46 mi (74 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Nemo RD over Boxelder Ck built?
It was built in 1972, making it 53 years old in 2025.
What condition is Nemo RD 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 June 2024.
How much traffic does Nemo RD over Boxelder Ck carry?
About 974 vehicles per day (2022 count), of which roughly 3% are trucks.
How long is Nemo RD over Boxelder Ck?
The structure is 100 ft (30.5 m) long with a longest span of 50 ft (15.2 m) and a deck 31 ft wide.
Who owns Nemo RD over Boxelder Ck?
It is owned by the County Highway Agency.