US 20 over Willow Creek
Fair Condition56 years old27,000 vehicles/day
Location
| State | Idaho |
| County | Bonneville |
| Location | 3 N. Idaho Falls |
| Carries | US 20 |
| Crosses | Willow Creek |
| Coordinates | 43.54742, -111.99950 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Frame |
| Total Length | 22.0 ft (6.7 m) |
| Max Span | 22.0 ft (6.7 m) |
| Deck Width | 219.2 ft (66.8 m) |
| Deck Area | 447.6 sq m |
| Main Spans | 1 |
| Year Built | 1970 (reconstructed 2004) |
Traffic
| Avg Daily Traffic | 27,000 (2023) |
| Truck Traffic | 9% |
| Lanes On Bridge | 4 |
Inspection & Ownership
| Last Inspection | 422 |
| Inspection Frequency | Every 48 months |
| Owner | State Highway Agency |
| Historical Significance | Historical significance is not determined |
| Structure Number | 000000000012375 |