Irr Ar SD063 over Brave Bull Ck
Jackson County, South Dakota · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Irr Ar SD063 over Brave Bull Ck in Jackson 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 2006, making it 19 years old at the 2025 inventory.
- It carries about 106 vehicles a day (traffic count year 2024).
- Its listed owner is the state highway agency.
- It is one of 26 of the 89 inventoried bridges in Jackson County rated good (29.2%); 13 (14.6%) 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 → (43.83489, -101.2713)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 7 | Good condition |
Bridge details
| Structure | Continuous concrete culvert |
| Length | about 24 ft |
| Location | 0.6 S Jct I 90 |
| NBI structure number | 000000036436111 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the South Dakota department of transportation.
Busiest bridges in Jackson County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I090 over Br Big Buffalo Ck | 1968 | 6,560 | Fair |
| I090 W over Whitewater Ck | 1986 | 3,956 | Fair |
| I090 E over Whitewater Ck | 1973 | 3,956 | Fair |
| I090 W over SD073 Ck | 1967 | 3,552 | Fair |
| I090 E over SD073 Ck | 1967 | 3,552 | Good |
| I090 W over County Rd | 1967 | 3,552 | Fair |
All bridges nearby: Jackson County, SD bridge conditions · every bridge in Jackson County · South Dakota bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.