Nfdr 3350 over Dry Fork Belt Creek
Judith Basin County, Montana · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Nfdr 3350 over Dry Fork Belt Creek in Judith Basin County, Montana, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1967, making it 58 years old at the 2025 inventory.
- It carries about 40 vehicles a day.
- It is one of 12 of the 45 inventoried bridges in Judith Basin County rated fair (26.7%); 7 (15.6%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated September 2024, on a 48-month routine inspection cycle.
- 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 → (47.04755, -110.63029)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Timber stringer or multi-beam girder |
| Length | about 36 ft |
| Location | 0.1 Mi South 120/3350 Jct |
| NBI structure number | 011507000000034 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | September 2024 |
| Inspection interval (item 91) | 48 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Montana department of transportation.
Busiest bridges in Judith Basin County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 87 over Dawkins Branch | 2021 | 3,335 | Good |
| US 87 over Ross Fork Creek | 1971 | 3,335 | Good |
| US 87 over Otter Creek | 1961 | 2,874 | Good |
| US 87 over Otter Creek | 1961 | 2,874 | Good |
| US 87 over Otter Creek | 1961 | 2,874 | Good |
| US 87 over Stockpass | 1961 | 2,753 | Good |
All bridges nearby: Judith Basin County, MT bridge conditions · every bridge in Judith Basin County · Montana bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.