409TH Avenue over Creek
Beadle County, South Dakota · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- 409TH Avenue over Creek in Beadle County, South Dakota, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1935, making it 90 years old at the 2025 inventory.
- It carries about 120 vehicles a day (traffic count year 2022).
- Its listed owner is the county highway agency.
- It is one of 40 of the 150 inventoried bridges in Beadle County rated poor (26.7%); 40 (26.7%) are rated poor.
- A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.
View this bridge on a map → (44.24895, -98.03395)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 4 | Poor condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 20 ft |
| Location | 8.2S of Cavour |
| NBI structure number | 000000003330262 |
| Condition class | Poor |
Source: FHWA National Bridge Inventory, 2025 data as reported by the South Dakota department of transportation.
Busiest bridges in Beadle County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Third Street over James Rv | 1982 | 4,828 | Fair |
| US014 over James Rv | 1960 | 3,601 | Poor |
| US014 over Cain Ck | 1976 | 2,802 | Fair |
| 387TH Avenue over Cain Creek | 1935 | 2,600 | Fair |
| US014 W over Ravine Lk | 1960 | 2,472 | Fair |
| US014 E over Ravine Lk | 1960 | 2,472 | Fair |
All bridges nearby: Beadle County, SD bridge conditions · every bridge in Beadle County · South Dakota bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.