420th Avenue over Creek
GoodMarshall County, South Dakota · 3.2N & 1E Langford · Structure no. 000000046080198
- Built
- 2014
- 11 years old
- Condition
- Good
- inspected June 2023
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 45 ft
- 1 main span
- Daily traffic
- 35
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
420th Avenue over Creek is a prestressed concrete tee beam carrying 420th Avenue over Creek in Marshall County, South Dakota. It was built in 2014, so it is 11 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 35 vehicles a day, roughly 2% of them trucks, projected to reach 35 by 2032. The structure is 45 ft (13.7 m) long and 27 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 420th Avenue over Creek built?
It was built in 2014, making it 11 years old in 2025.
What condition is 420th Avenue over Creek 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 420th Avenue over Creek carry?
About 35 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is 420th Avenue over Creek?
The structure is 45 ft (13.7 m) long with a longest span of 41 ft (12.6 m) and a deck 27 ft wide.
Who owns 420th Avenue over Creek?
It is owned by the County Highway Agency.