SD1806 over Draw
Stanley County, South Dakota · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- SD1806 over Draw in Stanley County, South Dakota, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 7 (good condition) on the 0-9 scale.
- It was built in 2010, making it 15 years old at the 2025 inventory.
- It carries about 1,566 vehicles a day (traffic count year 2024).
- Its listed owner is the state highway agency.
- It is one of 13 of the 37 inventoried bridges in Stanley County rated good (35.1%); 6 (16.2%) 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 → (44.37951, -100.3953)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 7 | Good condition |
Bridge details
| Structure | Continuous concrete culvert |
| Length | about 31 ft |
| Location | 0.5 N Jct US14/SD34 |
| NBI structure number | 000000059388274 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the South Dakota department of transportation.
Busiest bridges in Stanley County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US083 over Bad Rv | 1956 | 6,040 | Fair |
| SD1806 over Ck | 1963 | 1,566 | Fair |
| SD1806 over Ck | 1963 | 1,566 | Fair |
| US014 over Frozenman Ck | 2002 | 1,406 | Good |
| US014 over Willow Ck | 1984 | 1,406 | Good |
| US014 over Wagon Hound Ck | 2002 | 1,052 | Fair |
All bridges nearby: Stanley County, SD bridge conditions · every bridge in Stanley County · South Dakota bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.