T-357 Porterfield over Over Mill Creek
Fair Condition125 years old100 vehicles/day
Location
| State | Pennsylvania |
| County | Venango |
| Location | Richland Township |
| Carries | T-357 Porterfield |
| Crosses | Over Mill Creek |
| Coordinates | 41.24589, -79.68718 |
Condition Ratings
| Overall Condition | Fair |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 4 — Foundations need monitoring |
Physical Characteristics
| Material | Masonry |
| Design | Arch - Deck |
| Total Length | 20.0 ft (6.1 m) |
| Max Span | 20.0 ft (6.1 m) |
| Deck Width | 17.1 ft (5.2 m) |
| Deck Area | 31.7 sq m |
| Main Spans | 1 |
| Year Built | 1901 |
Traffic
| Avg Daily Traffic | 100 (2014) |
| Truck Traffic | 10% |
| Lanes On Bridge | 1 |
Inspection & Ownership
| Last Inspection | 224 |
| Inspection Frequency | Every 24 months |
| Owner | Town/Township Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000033917 |