415TH Avenue over Creek
Clark County, South Dakota · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- 415TH Avenue over Creek in Clark County, South Dakota, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1949, making it 76 years old at the 2025 inventory.
- It carries about 182 vehicles a day (traffic count year 2022).
- Its listed owner is the county highway agency.
- It is one of 9 of the 21 inventoried bridges in Clark County rated fair (42.9%); 1 (4.8%) 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 → (44.66497, -97.91695)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 5 | Fair condition |
Bridge details
| Structure | Continuous concrete culvert |
| Length | about 39 ft |
| Location | 2.0N of Carpenter |
| NBI structure number | 000000013030336 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the South Dakota department of transportation.
Busiest bridges in Clark County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| 414TH Avenue over Creek | 1956 | 450 | Fair |
| 414TH Avenue over Creek | 1956 | 389 | Fair |
| SD028 over Shue Ck | 2016 | 302 | Fair |
| SD028 over Br Shue Ck | 2016 | 302 | Fair |
| 414TH Avenue over Creek | 1956 | 245 | Good |
| 414TH Avenue over Fordham Creek | 1956 | 236 | Fair |
All bridges nearby: Clark County, SD bridge conditions · every bridge in Clark County · South Dakota bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.