Jo Cnty RD 78 over Middle Fork Powder River
Poor Condition37 years old13 vehicles/day
Location
| State | Wyoming |
| County | Johnson |
| Location | 11 Miles N. Of Barnum |
| Carries | Jo Cnty RD 78 |
| Crosses | Middle Fork Powder River |
| Coordinates | 43.64538, -106.80921 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 6 (Satisfactory) |
| Superstructure | 3 (Serious) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Truss - Thru |
| Total Length | 59.1 ft (18 m) |
| Max Span | 57.1 ft (17.4 m) |
| Deck Width | 24.9 ft (7.6 m) |
| Deck Area | 136.8 sq m |
| Main Spans | 1 |
| Year Built | 1989 |
Traffic
| Avg Daily Traffic | 13 (2024) |
| Truck Traffic | 15% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 324 |
| Inspection Frequency | Every 12 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | FNV |