T-423 Johns School over Glade Run
Good Condition17 years old100 vehicles/day
Location
| State | Pennsylvania |
| County | Butler |
| Location | 0.25 Mi SW Of T-388 |
| Carries | T-423 Johns School |
| Crosses | Glade Run |
| Coordinates | 40.75802, -79.99186 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 4 — Foundations need monitoring |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 63.0 ft (19.2 m) |
| Max Span | 60.0 ft (18.3 m) |
| Deck Width | 22.6 ft (6.9 m) |
| Deck Area | 132.5 sq m |
| Main Spans | 1 |
| Year Built | 2009 |
Traffic
| Avg Daily Traffic | 100 (2015) |
| Truck Traffic | 9% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | November 2023 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000045582 |