Mail RD over Indian Ck
PoorPosted for loadButte County, South Dakota · 2W 5.8N Nisland · Structure no. 000000010230310
- Built
- 1940
- 85 years old, rebuilt 1980
- Condition
- Poor
- inspected August 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 141 ft
- 1 main span
- Daily traffic
- 22
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
Mail RD over Indian Ck is a prestressed concrete tee beam carrying Mail RD over Indian Ck in Butte County, South Dakota. It was built in 1940 and reconstructed in 1980, so it is 85 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 22 vehicles a day, roughly 2% of them trucks, projected to reach 60 by 2032. The structure is 141 ft (43 m) long and 28 ft wide. If it were closed, the detour would be 6.8 mi (11 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 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 Mail RD over Indian Ck built?
It was built in 1940, making it 85 years old in 2025. It was reconstructed in 1980.
What condition is Mail RD over Indian 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 August 2024.
How much traffic does Mail RD over Indian Ck carry?
About 22 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is Mail RD over Indian Ck?
The structure is 141 ft (43 m) long with a longest span of 50 ft (15.2 m) and a deck 28 ft wide.
Who owns Mail RD over Indian Ck?
It is owned by the County Highway Agency.