300 Street over Lost Ck
GoodTripp County, South Dakota · 1.5S & 0.7E Millboro · Structure no. 000000062147500
- Built
- 2002
- 23 years old
- Condition
- Good
- inspected June 2023
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 40 ft
- 1 main span
- Daily traffic
- 36
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
300 Street over Lost Ck is a prestressed concrete tee beam carrying 300 Street over Lost Ck in Tripp County, South Dakota. It was built in 2002, so it is 23 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 36 vehicles a day, roughly 3% of them trucks, projected to reach 51 by 2032. The structure is 40 ft (12.2 m) long and 31 ft wide. If it were closed, the detour would be 11.8 mi (19 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 300 Street over Lost Ck built?
It was built in 2002, making it 23 years old in 2025.
What condition is 300 Street over Lost Ck in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2023.
How much traffic does 300 Street over Lost Ck carry?
About 36 vehicles per day (2022 count), of which roughly 3% are trucks.
How long is 300 Street over Lost Ck?
The structure is 40 ft (12.2 m) long with a longest span of 38 ft (11.7 m) and a deck 31 ft wide.
Who owns 300 Street over Lost Ck?
It is owned by the County Highway Agency.