US 20 over Henrys Fk. Snake River
Good Condition25 years old6,400 vehicles/day
Location
| State | Idaho |
| County | Fremont |
| Location | 17.8 N. Ashton |
| Carries | US 20 |
| Crosses | Henrys Fk. Snake River |
| Coordinates | 44.32444, -111.44889 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 254.9 ft (77.7 m) |
| Max Span | 125.0 ft (38.1 m) |
| Deck Width | 41.3 ft (12.6 m) |
| Deck Area | 979.0 sq m |
| Main Spans | 2 |
| Year Built | 2001 |
Traffic
| Avg Daily Traffic | 6,400 (2023) |
| Truck Traffic | 21% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 724 |
| Inspection Frequency | Every 48 months |
| Owner | State Highway Agency |
| Historical Significance | Historical significance is not determined |
| Structure Number | 000000000012676 |