US 20b over Twin Groves Canal
Fair Condition34 years old1,400 vehicles/day
Location
| State | Idaho |
| County | Fremont |
| Location | 1.6 N. ST Anthony |
| Carries | US 20b |
| Crosses | Twin Groves Canal |
| Coordinates | 43.97211, -111.64872 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Frame |
| Total Length | 24.9 ft (7.6 m) |
| Max Span | 24.9 ft (7.6 m) |
| Deck Width | 40.0 ft (12.2 m) |
| Deck Area | 92.7 sq m |
| Main Spans | 1 |
| Year Built | 1992 |
Traffic
| Avg Daily Traffic | 1,400 (2023) |
| Truck Traffic | 9% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 421 |
| Inspection Frequency | Every 48 months |
| Owner | State Highway Agency |
| Historical Significance | Historical significance is not determined |
| Structure Number | 000000000012749 |