28430 420 Ave. over Lonetree Ck
PoorHutchinson County, South Dakota · 4 W 1.7 N Hys 18 &25 · Structure no. 000000034160163
- Built
- 1984
- 41 years old
- Condition
- Poor
- inspected May 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 31 ft
- 1 main span
- Daily traffic
- 45
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
28430 420 Ave. over Lonetree Ck is a prestressed concrete tee beam carrying 28430 420 Ave. over Lonetree Ck in Hutchinson County, South Dakota. It was built in 1984, so it is 41 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 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.
It carries about 45 vehicles a day, roughly 2% of them trucks, projected to reach 45 by 2032. The structure is 31 ft (9.3 m) long and 23 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 7 Good | Some minor problems. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 28430 420 Ave. over Lonetree Ck built?
It was built in 1984, making it 41 years old in 2025.
What condition is 28430 420 Ave. over Lonetree 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 May 2024.
How much traffic does 28430 420 Ave. over Lonetree Ck carry?
About 45 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is 28430 420 Ave. over Lonetree Ck?
The structure is 31 ft (9.3 m) long with a longest span of 29 ft (8.8 m) and a deck 23 ft wide.
Who owns 28430 420 Ave. over Lonetree Ck?
It is owned by the County Highway Agency.