S 511 over S Fork Whitetail Creek
Daniels County, Montana · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- S 511 over S Fork Whitetail Creek in Daniels County, Montana, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1999, making it 26 years old at the 2025 inventory.
- It carries about 132 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 11 of the 33 inventoried bridges in Daniels County rated fair (33.3%); 4 (12.1%) 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 → (48.85498, -105.16945)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 6 | Satisfactory condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 28 ft |
| Location | 3M N Flaxville |
| NBI structure number | S00511003+07001 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Montana department of transportation.
Busiest bridges in Daniels County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Irr - S 13 over Manternach Coulee | 1988 | 795 | Good |
| S 248 over Butte Creek | 2023 | 392 | Good |
| S 248 over Spring Creek | 2023 | 392 | Good |
| S 248 over Drainage | 2023 | 392 | Good |
| S248 over Drainage | 2024 | 392 | Good |
| S 248 over Poplar River | 1940 | 392 | Fair |
All bridges nearby: Daniels County, MT bridge conditions · every bridge in Daniels County · Montana bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.