370TH Avenue over Creek
Edmunds County, South Dakota · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- 370TH Avenue over Creek in Edmunds County, South Dakota, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1974, making it 51 years old at the 2025 inventory.
- It carries about 114 vehicles a day (traffic count year 2022).
- Its listed owner is the county highway agency.
- It is one of 5 of the 20 inventoried bridges in Edmunds County rated poor (25.0%); 5 (25.0%) 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 → (45.54205, -98.78407)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 6 | Satisfactory condition |
| Superstructure | 5 | Fair condition |
| Substructure | 4 | Poor condition |
Bridge details
| Structure | Concrete channel beam |
| Length | about 30 ft |
| Location | 12E & 6.4N of Ipswich |
| NBI structure number | 000000023450034 |
| Condition class | Poor |
Source: FHWA National Bridge Inventory, 2025 data as reported by the South Dakota department of transportation.
Busiest bridges in Edmunds County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US012 over Preachers Run Ck | 1974 | 3,329 | Fair |
| US012 over Burlington Northern RR | 1970 | 3,329 | Fair |
| US012 over Ck | 1974 | 2,666 | Poor |
| US012 over BNSF RR | 2006 | 2,068 | Good |
| SD045 over Ck | 1986 | 660 | Fair |
| SD045 over Ck | 1992 | 391 | Good |
All bridges nearby: Edmunds County, SD bridge conditions · every bridge in Edmunds County · South Dakota bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.