W Blackrock Road over Portneuf R;nw.inkom Br
Fair Condition78 years old100 vehicles/day
Location
| State | Idaho |
| County | Bannock |
| Location | 0.2 N. 4.0 W. Inkom |
| Carries | W Blackrock Road |
| Crosses | Portneuf R;nw.inkom Br |
| Coordinates | 42.79519, -112.32942 |
Condition Ratings
| Overall Condition | Fair |
| Channel/Waterway | 6 (Satisfactory) |
| Culvert | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Culvert |
| Total Length | 42.0 ft (12.8 m) |
| Max Span | 20.0 ft (6.1 m) |
| Deck Width | 30.8 ft (9.4 m) |
| Deck Area | 120.3 sq m |
| Main Spans | 2 |
| Year Built | 1948 |
Traffic
| Avg Daily Traffic | 100 (2023) |
| Truck Traffic | 10% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 924 |
| Inspection Frequency | Every 48 months |
| Owner | County Highway Agency |
| Historical Significance | Historical significance is not determined |
| Structure Number | 000000000021940 |