231 Avenue over Ck
Bennett County, South Dakota · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- 231 Avenue over Ck in Bennett County, South Dakota, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1954, making it 71 years old at the 2025 inventory.
- It carries about 123 vehicles a day (traffic count year 2022).
- Its listed owner is the county highway agency.
- It is one of 10 of the 15 inventoried bridges in Bennett County rated fair (66.7%); 3 (20.0%) 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 → (43.19132, -101.49433)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 6 | Satisfactory condition |
Bridge details
| Structure | Continuous concrete culvert |
| Length | about 26 ft |
| Location | 2.3 N Tuthill |
| NBI structure number | 000000004310137 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the South Dakota department of transportation.
Busiest bridges in Bennett County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US018 over Ck | 1951 | 906 | Fair |
| US018 over Trib Little White Rv | 2020 | 573 | Good |
| SD073 over Little White Rv | 1964 | 522 | Fair |
| SD073 over Lake Ck | 1964 | 522 | Fair |
| Irr Bia Rte Allen over Trib of White River | 2017 | 300 | Good |
| 290 Street over Ck | 1954 | 123 | Fair |
All bridges nearby: Bennett County, SD bridge conditions · every bridge in Bennett County · South Dakota bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.