370TH Avenue over S Fork Snake Creek
Faulk County, South Dakota · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- 370TH Avenue over S Fork Snake Creek in Faulk County, South Dakota, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 3 (serious condition) on the 0-9 scale.
- It was built in 1920, making it 105 years old at the 2025 inventory.
- It carries about 36 vehicles a day (traffic count year 2022).
- Its listed owner is the county highway agency.
- It is one of 11 of the 46 inventoried bridges in Faulk County rated poor (23.9%); 11 (23.9%) 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 → (45.03906, -98.77882)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 3 | Serious condition |
| Superstructure | 4 | Poor condition |
| Substructure | 4 | Poor condition |
Bridge details
| Structure | Steel through truss |
| Length | about 71 ft |
| Location | 9.7N & 2W Zell |
| NBI structure number | 000000025390143 |
| Condition class | Poor |
Source: FHWA National Bridge Inventory, 2025 data as reported by the South Dakota department of transportation.
Busiest bridges in Faulk County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| SD045 over South Fork Snake Ck | 1975 | 855 | Fair |
| US212 over Trib Ford Lake | 2021 | 717 | Good |
| US212 over Trib S Fork Snake Ck | 2021 | 717 | Good |
| US212 over Dry Run Ck | 2008 | 710 | Fair |
| US212 over South Fork Snake Ck | 1939 | 688 | Poor |
| SD020 over Ck | 1975 | 661 | Fair |
All bridges nearby: Faulk County, SD bridge conditions · every bridge in Faulk County · South Dakota bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.