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| Key Facts |
| Bridge Name | Facility Carried / Feature Intersected | Location | Structure Type | Construction Date and Builder/Engineer | |
|---|---|---|---|---|---|
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Fort Duquesne Bridge
| I-279 Over Allegheny River | Pittsburgh: Allegheny County, Pennsylvania | Metal Tied Solid Ribbed Through Arch, Fixed and Approach Spans: Metal Continuous Box Beam, Fixed | 1959 By Builder/Contractor: American Bridge Company of New York, New York and Engineer/Design: Richardson, Gordon, and Associates |
| Technical Facts |
| Rehabilitation Date | Main Span Length | Structure Length | Roadway Width | Main Spans | Approach Spans | NBI Number |
| 2010 | 921 Feet (280.7 Meters) | 432 Feet (128.9 Meters) | 53.5 Feet (16.3 Meters) | 1 | 4 | 02027900640452 |
This bridge is the smaller of two tied arch bridges that frame Pittsburgh's famous Point State Park. The tied arch features a trussed tie that supports a double-deck system on the bridge. The trussed tie follows the Warren truss configuration. The historic bridge proper consists of the main span and four approach spans. However the entire bridge system includes many more ramps and approach spans. These approach and ramp systems are actually quite a bit newer than the main bridge due to delays in construction projects. As such, the 1959 bridge was not actually opened to traffic until some of these were completed in 1969.
This bridge replaced one of the most beautiful and ornate bridges in Pittsburgh, the Manchester Bridge. The HAER documentation links above record this bridge.
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