US 20 over Porter Canal
Fair Condition60 years old38,000 vehicles/day
Location
| State | Idaho |
| County | Bonneville |
| Location | In Idaho Falls |
| Carries | US 20 |
| Crosses | Porter Canal |
| Coordinates | 43.50583, -112.05158 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Frame |
| Total Length | 35.1 ft (10.7 m) |
| Max Span | 35.1 ft (10.7 m) |
| Deck Width | 133.9 ft (40.8 m) |
| Deck Area | 436.6 sq m |
| Main Spans | 1 |
| Year Built | 1966 (reconstructed 1990) |
Traffic
| Avg Daily Traffic | 38,000 (2023) |
| Truck Traffic | 18% |
| Lanes On Bridge | 6 |
Inspection & Ownership
| Last Inspection | November 2023 |
| Inspection Frequency | Every 48 months |
| Owner | State Highway Agency |
| Historical Significance | Historical significance is not determined |
| Structure Number | 000000000012330 |