Gibraltar Road over Antietam Creek
Good Condition46 years old11,973 vehicles/day
Location
| State | Pennsylvania |
| County | Berks |
| Location | Althouse Mill Bridge |
| Carries | Gibraltar Road |
| Crosses | Antietam Creek |
| Coordinates | 40.31129, -75.84823 |
Condition Ratings
| Overall Condition | Good |
| Deck | 9 (Excellent) |
| Superstructure | 9 (Excellent) |
| Substructure | 7 (Good) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 74.1 ft (22.6 m) |
| Max Span | 73.2 ft (22.3 m) |
| Deck Width | 49.9 ft (15.2 m) |
| Deck Area | 343.5 sq m |
| Main Spans | 1 |
| Year Built | 1980 (reconstructed 2023) |
Traffic
| Avg Daily Traffic | 11,973 (2015) |
| Truck Traffic | 2% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 923 |
| Inspection Frequency | Every 24 months |
| Owner | Town/Township Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000005358 |