SD030 over Br North Deer Ck
FairBrookings County, South Dakota · 0.8 W I 29 Interch · Structure no. 000000006178080
- Built
- 1957
- 68 years old
- Condition
- Fair
- inspected September 2023
- Type
- Slab
- Concrete Continuous
- Length
- 117 ft
- 5 main spans
- Daily traffic
- 872
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
SD030 over Br North Deer Ck is a concrete continuous slab carrying SD030 over Br North Deer Ck in Brookings County, South Dakota. It was built in 1957, so it is 68 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 872 vehicles a day, roughly 15% of them trucks, projected to reach 1,311 by 2044. The structure is 117 ft (35.7 m) long and 34 ft wide. If it were closed, the detour would be 16.2 mi (26 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SD030 over Br North Deer Ck built?
It was built in 1957, making it 68 years old in 2025.
What condition is SD030 over Br North Deer 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 September 2023.
How much traffic does SD030 over Br North Deer Ck carry?
About 872 vehicles per day (2024 count), of which roughly 15% are trucks.
How long is SD030 over Br North Deer Ck?
The structure is 117 ft (35.7 m) long with a longest span of 23 ft (7.1 m) and a deck 34 ft wide.
Who owns SD030 over Br North Deer Ck?
It is owned by the State Highway Agency.