398th Avenue over Mud Creek
PoorPosted for loadBrown County, South Dakota · 2E & 2.4S of Sratford · Structure no. 000000007220454
- Built
- 1915
- 110 years old
- Condition
- Poor
- inspected July 2024
- Type
- Truss - Thru
- Steel
- Length
- 53 ft
- 1 main span
- Daily traffic
- 98
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
398th Avenue over Mud Creek is a steel truss - thru carrying 398th Avenue over Mud Creek in Brown County, South Dakota. It was built in 1915, so it is 110 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 3 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 98 vehicles a day, roughly 2% of them trucks, projected to reach 98 by 2032. The structure is 53 ft (16.2 m) long and 20 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 398th Avenue over Mud Creek built?
It was built in 1915, making it 110 years old in 2025.
What condition is 398th Avenue over Mud Creek 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 July 2024.
How much traffic does 398th Avenue over Mud Creek carry?
About 98 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is 398th Avenue over Mud Creek?
The structure is 53 ft (16.2 m) long with a longest span of 51 ft (15.5 m) and a deck 20 ft wide.
Who owns 398th Avenue over Mud Creek?
It is owned by the County Highway Agency.