I 86 Wbl over Rock Cr;massacre Rock Br
Fair Condition63 years old4,150 vehicles/day
Location
| State | Idaho |
| County | Power |
| Location | 12.1 W. American Falls |
| Carries | I 86 Wbl |
| Crosses | Rock Cr;massacre Rock Br |
| Coordinates | 42.65250, -113.01408 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 169.0 ft (51.5 m) |
| Max Span | 56.1 ft (17.1 m) |
| Deck Width | 40.7 ft (12.4 m) |
| Deck Area | 638.6 sq m |
| Main Spans | 3 |
| Year Built | 1963 (reconstructed 1985) |
Traffic
| Avg Daily Traffic | 4,150 (2023) |
| Truck Traffic | 26% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 924 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Historical significance is not determined |
| Structure Number | 000000000010710 |