C Hy 6/STAMFORD Rd over White Rv
Mellette County, South Dakota · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- C Hy 6/STAMFORD Rd over White Rv in Mellette County, South Dakota, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 8 (very good condition) on the 0-9 scale.
- It was built in 2017, making it 8 years old at the 2025 inventory.
- It carries about 85 vehicles a day (traffic count year 2022).
- Its listed owner is the county highway agency.
- It is one of 9 of the 28 inventoried bridges in Mellette County rated good (32.1%); 2 (7.1%) are rated poor.
- A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.
View this bridge on a map → (43.85119, -101.03948)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 8 | Very good condition |
| Superstructure | 8 | Very good condition |
| Substructure | 8 | Very good condition |
Bridge details
| Structure | Prestressed concrete stringer or multi-beam girder |
| Length | about 321 ft |
| Location | 18.9N & 0.8W Cedar Butte |
| NBI structure number | 000000048102010 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the South Dakota department of transportation.
Busiest bridges in Mellette County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Irr Ar US083 over Horse Head Ck | 1966 | 1,525 | Fair |
| Irr Ar US083 over Ck | 1965 | 1,525 | Good |
| US083 over Little White Rv | 2022 | 1,188 | Good |
| US083 over White Rv | 2021 | 1,188 | Good |
| SD044 over Little White Rv | 1973 | 739 | Fair |
| Irr Ar SD044 over Corn Ck | 1980 | 420 | Good |
All bridges nearby: Mellette County, SD bridge conditions · every bridge in Mellette County · South Dakota bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.