US 20 26;fap 21spr over Snake River;nyssa Bridge
Fair Condition69 years old5,300 vehicles/day
Location
| State | Idaho |
| County | Canyon |
| Location | 6.1 N. 0.8 W. Parma |
| Carries | US 20 26;fap 21spr |
| Crosses | Snake River;nyssa Bridge |
| Coordinates | 43.87692, -116.98389 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 3 — Scour critical |
Physical Characteristics
| Material | Steel Continuous |
| Design | Girder and Floorbeam |
| Total Length | 696.9 ft (212.4 m) |
| Max Span | 228.0 ft (69.5 m) |
| Deck Width | 52.5 ft (16 m) |
| Deck Area | 3398.4 sq m |
| Main Spans | 3 |
| Year Built | 1957 (reconstructed 2005) |
Traffic
| Avg Daily Traffic | 5,300 (2023) |
| Truck Traffic | 13% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | October 2023 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Historical significance is not determined |
| Structure Number | 000000000012200 |