145 TH Ave over Spring Ck
FairPennington County, South Dakota · 5.7E 3.2S Rep. Gar. · Structure no. 000000052450399
- Built
- 1972
- 53 years old
- Condition
- Fair
- inspected June 2023
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 91 ft
- 2 main spans
- Daily traffic
- 106
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
145 TH Ave over Spring Ck is a prestressed concrete tee beam carrying 145 TH Ave over Spring 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 106 vehicles a day, roughly 2% of them trucks, projected to reach 106 by 2032. The structure is 91 ft (27.7 m) long and 27 ft wide. If it were closed, the detour would be 98.8 mi (159 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 145 TH Ave over Spring Ck built?
It was built in 1972, making it 53 years old in 2025.
What condition is 145 TH Ave over Spring 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 2023.
How much traffic does 145 TH Ave over Spring Ck carry?
About 106 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is 145 TH Ave over Spring Ck?
The structure is 91 ft (27.7 m) long with a longest span of 44 ft (13.4 m) and a deck 27 ft wide.
Who owns 145 TH Ave over Spring Ck?
It is owned by the County Highway Agency.