SR 20 over Horsetail Creek
Good Condition58 years old1,322 vehicles/day
Location
| State | Washington |
| County | Whatcom |
| Location | 16.7 E Skagit Co |
| Carries | SR 20 |
| Crosses | Horsetail Creek |
| Coordinates | 48.71894, -121.07058 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 9 — Foundation above flood level |
Physical Characteristics
| Material | Steel Continuous |
| Design | Girder and Floorbeam |
| Total Length | 362.9 ft (110.6 m) |
| Max Span | 179.1 ft (54.6 m) |
| Deck Width | 35.4 ft (10.8 m) |
| Deck Area | 1194.5 sq m |
| Main Spans | 3 |
| Year Built | 1968 |
Traffic
| Avg Daily Traffic | 1,322 (2023) |
| Truck Traffic | 8% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 624 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is possibly eligible (requires evaluation) |
| Structure Number | 0008465A0000000 |