Irr SD034 over West Fork Elm Ck
Hyde County, South Dakota · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Irr SD034 over West Fork Elm Ck in Hyde County, South Dakota, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1955, making it 70 years old at the 2025 inventory.
- It carries about 918 vehicles a day (traffic count year 2024).
- Its listed owner is the state highway agency.
- It is one of 10 of the 23 inventoried bridges in Hyde County rated fair (43.5%); 5 (21.7%) are rated poor.
- A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.
View this bridge on a map → (44.24122, -99.44181)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 6 | Satisfactory condition |
| Superstructure | 6 | Satisfactory condition |
| Substructure | 6 | Satisfactory condition |
Bridge details
| Structure | Continuous concrete slab |
| Length | about 105 ft |
| Location | 0.9 S Jct Sd 47 N |
| NBI structure number | 000000035110447 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the South Dakota department of transportation.
Busiest bridges in Hyde County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Irr SD034 over Campbell Ck | 1963 | 918 | Poor |
| Irr SD034 over Draw | 2001 | 604 | Good |
| Irr SD034 over West Fork Elm Ck | 2001 | 604 | Good |
| SD047 over South Medicine Ck | 1959 | 543 | Fair |
| Irr Ar SD047 over Br West Fork Elm Ck | 1959 | 405 | Fair |
| Irr Ar SD047 over Br West Fork Elm Ck | 1959 | 405 | Poor |
All bridges nearby: Hyde County, SD bridge conditions · every bridge in Hyde County · South Dakota bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.