Keystone Avenue over Swatara Creek
Fair Condition49 years old1,200 vehicles/day
Location
| State | Pennsylvania |
| County | Dauphin |
| Location | Swatara Cr; Middletown |
| Carries | Keystone Avenue |
| Crosses | Swatara Creek |
| Coordinates | 40.18906, -76.73276 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 263.1 ft (80.2 m) |
| Max Span | 65.0 ft (19.8 m) |
| Deck Width | 35.8 ft (10.9 m) |
| Deck Area | 874.2 sq m |
| Main Spans | 4 |
| Year Built | 1977 |
Traffic
| Avg Daily Traffic | 1,200 (2023) |
| Truck Traffic | 5% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 723 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000014751 |