Fdr 7498 over Birch Creek
Beaverhead County, Montana · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Fdr 7498 over Birch Creek in Beaverhead County, Montana, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
- It was built in 1995, making it 30 years old at the 2025 inventory.
- It carries about 15 vehicles a day.
- It is one of 53 of the 227 inventoried bridges in Beaverhead County rated good (23.3%); 24 (10.6%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its class is unchanged from 2024 (good), but component ratings moved: superstructure 7 to 8, substructure 7 to 8.
- Its most recent inspection on record is dated August 2024, on a 48-month routine inspection cycle.
- 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 → (45.39341, -112.81584)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 7 | 8 | Very good condition |
| Substructure | 7 | 8 | Very good condition |
Bridge details
| Structure | Timber stringer or multi-beam girder |
| Length | about 24 ft |
| Location | No Data Entered |
| NBI structure number | 010201000000155 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | August 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 Beaverhead County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| S 89 over Local-blacktail Cr-rr | 1974 | 4,241 | Fair |
| S 89 over Int North Dillon I 15 | 1973 | 4,241 | Fair |
| I 15 over Drainage Irr Ditch | 1973 | 3,915 | Fair |
| I 15 over Birch Creek | 1973 | 3,852 | Fair |
| I 15 over Int Jackson-hwy 278 | 1982 | 2,863 | Fair |
| I 15 over Int Jackson-hwy 278 | 1982 | 2,863 | Good |
All bridges nearby: Beaverhead County, MT bridge conditions · every bridge in Beaverhead County · Montana bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.