HWY 100 over Horsetail Falls
Fair Condition112 years old901 vehicles/day
Location
| State | Oregon |
| County | Multnomah |
| Location | 2.5 Mi E Multnomah Falls |
| Carries | HWY 100 |
| Crosses | Horsetail Falls |
| Coordinates | 45.59027, -122.06919 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 7 (Good) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 5 (Fair) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 60.0 ft (18.3 m) |
| Max Span | 20.0 ft (6.1 m) |
| Deck Width | 24.0 ft (7.3 m) |
| Deck Area | 133.6 sq m |
| Main Spans | 3 |
| Year Built | 1914 |
Traffic
| Avg Daily Traffic | 901 (2022) |
| Truck Traffic | 4% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 923 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is on the National Register of Historic Places |
| Structure Number | 04543 125 02221 |