US 89 over Foster Creek
Teton County, Montana · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- US 89 over Foster Creek in Teton County, Montana, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 8 (very good condition) on the 0-9 scale.
- It was built in 2018, making it 7 years old at the 2025 inventory.
- It carries about 654 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 34 of the 82 inventoried bridges in Teton County rated good (41.5%); 3 (3.7%) 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 → (47.95694, -112.29714)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 8 | Very good condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 21 ft |
| Location | 1M S Bynum |
| NBI structure number | 000000000005181 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Montana department of transportation.
Busiest bridges in Teton County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I 15 over Sep 9TH Rd NE | 1972 | 1,969 | Good |
| I 15 over Sep 9TH Rd NE | 1972 | 1,969 | Good |
| US 89 over Greenfields South Canal | 1983 | 1,798 | Good |
| US 89 over Greenfields Main Canal | 1983 | 1,798 | Good |
| I 15 over Int Main St | 1976 | 1,703 | Fair |
| I 15 over Int Main St | 1976 | 1,703 | Fair |
All bridges nearby: Teton County, MT bridge conditions · every bridge in Teton County · Montana bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.