SD073 over Bad Rv
Haakon County, South Dakota · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- SD073 over Bad Rv in Haakon County, South Dakota, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1963, making it 62 years old at the 2025 inventory.
- It carries about 637 vehicles a day (traffic count year 2024).
- Its listed owner is the state highway agency.
- It is one of 38 of the 69 inventoried bridges in Haakon County rated fair (55.1%); 8 (11.6%) 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 → (44.03652, -101.66546)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 7 | Good condition |
| Substructure | 6 | Satisfactory condition |
Bridge details
| Structure | Continuous concrete slab |
| Length | about 208 ft |
| Location | 0.6 S Jct US 14 |
| NBI structure number | 000000028171492 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the South Dakota department of transportation.
Busiest bridges in Haakon County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US014 over Ck | 1955 | 978 | Fair |
| US014 over Ck | 1955 | 978 | Fair |
| US014 over North Fork Bad Rv | 1995 | 978 | Fair |
| SD073 over West Plum Ck | 1990 | 700 | Fair |
| SD073 over Grindstone Ck | 1954 | 700 | Fair |
| US014 over Ck | 1954 | 660 | Fair |
All bridges nearby: Haakon County, SD bridge conditions · every bridge in Haakon County · South Dakota bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.