159th Ave over Boxelder Ck
PoorPosted for loadPennington County, South Dakota · 1.6 W New Underwood · Structure no. 000000052590291
- Built
- 1950
- 75 years old, rebuilt 1993
- Condition
- Poor
- inspected June 2024
- Type
- Stringer/Multi-beam or Girder
- Wood or Timber
- Length
- 40 ft
- 2 main spans
- Daily traffic
- 39
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
159th Ave over Boxelder Ck is a wood or timber stringer/multi-beam or girder carrying 159th Ave over Boxelder Ck in Pennington County, South Dakota. It was built in 1950 and reconstructed in 1993, so it is 75 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.
It carries about 39 vehicles a day, roughly 2% of them trucks, projected to reach 39 by 2032. The structure is 40 ft (12.2 m) long and 27 ft wide. If it were closed, the detour would be 6.2 mi (10 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 159th Ave over Boxelder Ck built?
It was built in 1950, making it 75 years old in 2025. It was reconstructed in 1993.
What condition is 159th Ave over Boxelder Ck in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2024.
How much traffic does 159th Ave over Boxelder Ck carry?
About 39 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is 159th Ave over Boxelder Ck?
The structure is 40 ft (12.2 m) long with a longest span of 19 ft (5.8 m) and a deck 27 ft wide.
Who owns 159th Ave over Boxelder Ck?
It is owned by the County Highway Agency.