US 422 Bus(lr 146) over Mineral Springs Cr. Sts.
Fair Condition99 years old9,576 vehicles/day
Location
| State | Pennsylvania |
| County | Berks |
| Location | Lindbergh Viaduct |
| Carries | US 422 Bus(lr 146) |
| Crosses | Mineral Springs Cr. Sts. |
| Coordinates | 40.33135, -75.89897 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Concrete |
| Design | Arch - Deck |
| Total Length | 563.0 ft (171.6 m) |
| Max Span | 83.0 ft (25.3 m) |
| Deck Width | 69.9 ft (21.3 m) |
| Deck Area | 3655.1 sq m |
| Main Spans | 7 |
| Year Built | 1927 (reconstructed 2003) |
Traffic
| Avg Daily Traffic | 9,576 (2024) |
| Truck Traffic | 2% |
| Lanes On Bridge | 4 |
| Lanes Under Bridge | 4 |
Inspection & Ownership
| Last Inspection | 424 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is on the National Register of Historic Places |
| Structure Number | 000000000005059 |