S 449 over Sage Creek
Hill County, Montana · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- S 449 over Sage Creek in Hill County, Montana, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1968, making it 57 years old at the 2025 inventory.
- It carries about 260 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 16 of the 46 inventoried bridges in Hill County rated fair (34.8%); 3 (6.5%) 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 → (48.5662, -110.30242)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 5 | Fair condition |
| Superstructure | 8 | Very good condition |
| Substructure | 7 | Good condition |
Bridge details
| Structure | Prestressed concrete stringer or multi-beam girder |
| Length | about 103 ft |
| Location | Gildford |
| NBI structure number | S00449000+02001 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Montana department of transportation.
Busiest bridges in Hill County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 2 over Little Box Elder Creek | 2011 | 3,678 | Good |
| US 2 over Drainage | 2011 | 3,678 | Good |
| US 2 over RR | 1960 | 3,539 | Fair |
| 7TH Ave N over RR | 1936 | 3,404 | Fair |
| US 87 over Beaver Creek | 1966 | 2,982 | Good |
| 7TH Ave N over Milk River | 1973 | 2,952 | Good |
All bridges nearby: Hill County, MT bridge conditions · every bridge in Hill County · Montana bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.