SD050 over Snatch Ck
Bon Homme County, South Dakota · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- SD050 over Snatch Ck in Bon Homme County, South Dakota, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1956, making it 69 years old at the 2025 inventory.
- It carries about 2,649 vehicles a day (traffic count year 2024).
- Its listed owner is the state highway agency.
- It is one of 66 of the 126 inventoried bridges in Bon Homme County rated fair (52.4%); 34 (27.0%) 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 March 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 → (42.9748, -97.77484)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 5 | 5 | Fair condition |
Bridge details
| Structure | Steel stringer or multi-beam girder |
| Length | about 143 ft |
| Location | 3.3 NW Jct Sd 25 |
| NBI structure number | 000000005199135 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | March 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 Bon Homme County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| SD050 over Drainage Ditch | 1955 | 2,674 | Good |
| SD050 over Charley Ck | 1979 | 2,510 | Good |
| SD050 over West Br Emanuel Ck | 1960 | 2,498 | Fair |
| SD050 over Emanuel Ck | 1960 | 2,498 | Fair |
| SD037 over Unnamed Ck | 2019 | 1,604 | Good |
| SD037 over Ck | 1958 | 1,375 | Fair |
All bridges nearby: Bon Homme County, SD bridge conditions · every bridge in Bon Homme County · South Dakota bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.