Road 21n16 over Sly Creek Spillway (dam)
Good Condition65 years old50 vehicles/day
Location
| State | California |
| County | Butte |
| Location | No Data Entered |
| Carries | Road 21n16 |
| Crosses | Sly Creek Spillway (dam) |
| Coordinates | 39.58095, -121.11376 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 59.1 ft (18 m) |
| Max Span | 58.1 ft (17.7 m) |
| Deck Width | 20.0 ft (6.1 m) |
| Deck Area | 109.8 sq m |
| Main Spans | 1 |
| Year Built | 1961 (reconstructed 2000) |
Traffic
| Avg Daily Traffic | 50 |
| Lanes On Bridge | 1 |
Inspection & Ownership
| Last Inspection | 924 |
| Inspection Frequency | Every 24 months |
| Owner | U.S. Forest Service |
| Historical Significance | Historical significance is not determined |
| Structure Number | 051153000001035 |