T-409 Mifflin Br#1 over Ten Mile Run
Fair Condition86 years old120 vehicles/day
Location
| State | Pennsylvania |
| County | Columbia |
| Location | 2.1 M.ssw Of Mifflinville |
| Carries | T-409 Mifflin Br#1 |
| Crosses | Ten Mile Run |
| Coordinates | 41.00158, -76.31919 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 5 (Fair) |
| Substructure | 7 (Good) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 43.0 ft (13.1 m) |
| Max Span | 41.0 ft (12.5 m) |
| Deck Width | 24.9 ft (7.6 m) |
| Deck Area | 99.6 sq m |
| Main Spans | 1 |
| Year Built | 1940 (reconstructed 1982) |
Traffic
| Avg Daily Traffic | 120 (2024) |
| Truck Traffic | 5% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 423 |
| Inspection Frequency | Every 24 months |
| Owner | Town/Township Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000012825 |