Sr4021 Tan Hill RD over Over Thornbottom Creek
Fair Condition71 years old333 vehicles/day
Location
| State | Pennsylvania |
| County | Tioga |
| Location | 3 Mi South Of Elkland |
| Carries | Sr4021 Tan Hill RD |
| Crosses | Over Thornbottom Creek |
| Coordinates | 41.95413, -77.32233 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 3 — Scour critical |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 27.9 ft (8.5 m) |
| Max Span | 26.9 ft (8.2 m) |
| Deck Width | 27.2 ft (8.3 m) |
| Deck Area | 70.5 sq m |
| Main Spans | 1 |
| Year Built | 1955 |
Traffic
| Avg Daily Traffic | 333 (2024) |
| Truck Traffic | 4% |
| 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 | 000000000033184 |