423rd Avenue over Burlington Northern RR
PoorPosted for loadDay County, South Dakota · 3rd Street - Bristol · Structure no. 000000019113165
- Built
- 1938
- 87 years old
- Condition
- Poor
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 206 ft
- 4 main spans
- Daily traffic
- 218
- 2022 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
423rd Avenue over Burlington Northern RR is a steel stringer/multi-beam or girder carrying 423rd Avenue over Burlington Northern RR in Day County, South Dakota. It was built in 1938, so it is 87 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 218 vehicles a day, roughly 2% of them trucks, projected to reach 400 by 2032. The structure is 206 ft (62.8 m) long and 27 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 423rd Avenue over Burlington Northern RR built?
It was built in 1938, making it 87 years old in 2025.
What condition is 423rd Avenue over Burlington Northern RR 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 August 2024.
How much traffic does 423rd Avenue over Burlington Northern RR carry?
About 218 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is 423rd Avenue over Burlington Northern RR?
The structure is 206 ft (62.8 m) long with a longest span of 68 ft (20.7 m) and a deck 27 ft wide.
Who owns 423rd Avenue over Burlington Northern RR?
It is owned by the Town or Township Highway Agency.