Steese Highway over Mammoth Creek
Fair Condition55 years old140 vehicles/day
Location
| State | Alaska |
| County | Yukon-Koyukuk |
| Location | Mile Point 111.1 |
| Carries | Steese Highway |
| Crosses | Mammoth Creek |
| Coordinates | 65.55022, -145.17477 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 3 — Scour critical |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 46.6 ft (14.2 m) |
| Max Span | 44.9 ft (13.7 m) |
| Deck Width | 28.9 ft (8.8 m) |
| Deck Area | 125.0 sq m |
| Main Spans | 1 |
| Year Built | 1971 |
Traffic
| Avg Daily Traffic | 140 (2020) |
| Truck Traffic | 13% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 824 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 0831 |