IRR SD063 over Moreau Rv
FairDewey County, South Dakota · 13 N JCT US 212 · Structure no. 000000021148201
- Built
- 1971
- 54 years old
- Condition
- Fair
- inspected April 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 394 ft
- 3 main spans
- Daily traffic
- 717
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
IRR SD063 over Moreau Rv is a steel continuous stringer/multi-beam or girder carrying IRR SD063 over Moreau Rv in Dewey County, South Dakota. It was built in 1971, so it is 54 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 fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 717 vehicles a day, roughly 8% of them trucks, projected to reach 1,045 by 2044. The structure is 394 ft (120.1 m) long and 39 ft wide. If it were closed, the detour would be 41 mi (66 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 IRR SD063 over Moreau Rv built?
It was built in 1971, making it 54 years old in 2025.
What condition is IRR SD063 over Moreau Rv in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in April 2024.
How much traffic does IRR SD063 over Moreau Rv carry?
About 717 vehicles per day (2024 count), of which roughly 8% are trucks.
How long is IRR SD063 over Moreau Rv?
The structure is 394 ft (120.1 m) long with a longest span of 150 ft (45.7 m) and a deck 39 ft wide.
Who owns IRR SD063 over Moreau Rv?
It is owned by the State Highway Agency.