SD034 over Smith Ck
Jerauld County, South Dakota · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- SD034 over Smith Ck in Jerauld 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 1952, making it 73 years old at the 2025 inventory.
- It carries about 514 vehicles a day (traffic count year 2024).
- Its listed owner is the state highway agency.
- It is one of 19 of the 35 inventoried bridges in Jerauld County rated fair (54.3%); 8 (22.9%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated June 2023, on a 24-month routine inspection cycle.
- 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 → (44.08033, -98.72372)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 6 | Satisfactory condition |
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Continuous concrete slab |
| Length | about 105 ft |
| Location | 7.6 W Wessington Springs |
| NBI structure number | 000000037102080 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | June 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
Source: FHWA National Bridge Inventory, 2025 data as reported by the South Dakota department of transportation.
Busiest bridges in Jerauld County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US281 over Sand Ck | 1958 | 1,385 | Fair |
| SD034 over East Br Smith Ck | 1952 | 1,218 | Fair |
| SD034 over Firesteel Ck | 1963 | 1,218 | Fair |
| SD034 over Morris Ck | 1963 | 1,137 | Good |
| SD034 over Br Crow Ck | 1952 | 514 | Fair |
| SD034 over Br Crow Ck | 1952 | 514 | Fair |
All bridges nearby: Jerauld County, SD bridge conditions · every bridge in Jerauld County · South Dakota bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.