M.fk.payette R. Rd over Silver Creek
Valley County, Idaho · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- M.fk.payette R. Rd over Silver Creek in Valley County, Idaho, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 7 (good condition) on the 0-9 scale.
- It was built in 1958, making it 67 years old at the 2025 inventory.
- It carries about 50 vehicles a day (traffic count year 1994).
- It is one of 72 of the 153 inventoried bridges in Valley County rated good (47.1%); 10 (6.5%) are rated poor.
- Its traffic status in the 2025 inventory is posted for load (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated September 2023, on a 24-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 → (44.304, -115.86501)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 8 | 8 | Very good condition |
| Superstructure | 8 | 8 | Very good condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Concrete stringer or multi-beam girder |
| Length | about 32 ft |
| Location | 2 Mi N Trail Creek Cg |
| NBI structure number | 040206000001149 |
| Condition class | Good |
| Traffic status (item 41) | Posted for load |
| Last inspection (item 90) | September 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 4: foundations stable, field review says exposed foundations need protection |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Idaho department of transportation.
Busiest bridges in Valley County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| SH 55 over N. Fk. Payette River | 2013 | 7,800 | Fair |
| SH 55 over N.fk.payette R;lardo | 2014 | 7,400 | Fair |
| SH 55 over Lake Fork Creek | 1985 | 6,500 | Fair |
| SH 55 over Boulder Creek | 1999 | 6,000 | Fair |
| SH 55 over Lake Fork Creek Canal | 1998 | 6,000 | Fair |
| SH 55 over N. Fk. Payette River | 2015 | 5,700 | Good |
All bridges nearby: Valley County, ID bridge conditions · every bridge in Valley County · Idaho bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.