IRR State Park RD over Little Moreau Rv
FairPosted for loadDewey County, South Dakota · 5.7S .3W Timber Lk · Structure no. 000000021207087
- Built
- 1950
- 75 years old
- Condition
- Fair
- inspected October 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 32 ft
- 1 main span
- Daily traffic
- 5
- 2022 count
- Owner
- State
- Other State Agency
About this bridge
IRR State Park RD over Little Moreau Rv is a steel stringer/multi-beam or girder carrying IRR State Park RD over Little Moreau Rv in Dewey County, South Dakota. It was built in 1950, so it is 75 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.
It carries about 5 vehicles a day, roughly 2% of them trucks, projected to reach 19 by 2032. The structure is 32 ft (9.8 m) long and 21 ft wide. If it were closed, the detour would be 98.8 mi (159 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 State Park RD over Little Moreau Rv built?
It was built in 1950, making it 75 years old in 2025.
What condition is IRR State Park RD over Little 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 October 2024.
How much traffic does IRR State Park RD over Little Moreau Rv carry?
About 5 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is IRR State Park RD over Little Moreau Rv?
The structure is 32 ft (9.8 m) long with a longest span of 31 ft (9.3 m) and a deck 21 ft wide.
Who owns IRR State Park RD over Little Moreau Rv?
It is owned by the Other State Agency.