US 30 over Portneuf River
Fair Condition49 years old4,300 vehicles/day
Location
| State | Idaho |
| County | Bannock |
| Location | At Lava Hot Springs Ecl |
| Carries | US 30 |
| Crosses | Portneuf River |
| Coordinates | 42.62292, -111.99633 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 5 (Fair) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 254.9 ft (77.7 m) |
| Max Span | 122.0 ft (37.2 m) |
| Deck Width | 53.5 ft (16.3 m) |
| Deck Area | 1266.5 sq m |
| Main Spans | 3 |
| Year Built | 1977 |
Traffic
| Avg Daily Traffic | 4,300 (2023) |
| Truck Traffic | 20% |
| Lanes On Bridge | 3 |
Inspection & Ownership
| Last Inspection | October 2023 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Historical significance is not determined |
| Structure Number | 000000000013715 |