I 94 over Sep RR
Treasure County, Montana · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- I 94 over Sep RR in Treasure County, Montana, 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 1973, making it 52 years old at the 2025 inventory.
- It carries about 5,042 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 8 of the 26 inventoried bridges in Treasure County rated good (30.8%); 4 (15.4%) 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 → (46.26327, -107.1496)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 7 | Good condition |
Bridge details
| Structure | Steel culvert |
| Length | about 23 ft |
| Location | 18.6M E Bighorn |
| NBI structure number | I00094071+04801 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Montana department of transportation.
Busiest bridges in Treasure County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I 94 over Int Hysham | 1964 | 2,521 | Good |
| I 94 over Int Hysham | 1976 | 2,521 | Good |
| I 94 over Sarpy Creek | 1967 | 2,521 | Good |
| I 94 over Sarpy Creek | 1976 | 2,094 | Good |
| Frontage Road 018 over Irrigation Ditch 001 | 1933 | 281 | Poor |
| Old Hwy 10 over Irrigation Ditch 024 | 1933 | 273 | Fair |
All bridges nearby: Treasure County, MT bridge conditions · every bridge in Treasure County · Montana bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.