US 20 over South Fork Powder River
Fair Condition53 years old2,450 vehicles/day
Location
| State | Wyoming |
| County | Natrona |
| Location | Casper - Shoshoni |
| Carries | US 20 |
| Crosses | South Fork Powder River |
| Coordinates | 43.03373, -107.01748 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 279.9 ft (85.3 m) |
| Max Span | 108.9 ft (33.2 m) |
| Deck Width | 42.7 ft (13 m) |
| Deck Area | 1108.9 sq m |
| Main Spans | 3 |
| Year Built | 1973 |
Traffic
| Avg Daily Traffic | 2,450 (2024) |
| Truck Traffic | 19% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 423 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Historical significance is not determined |
| Structure Number | CBT |