Crown Princess Mary Bridge – Frederikssund Fjord Link
Palmetto/Dolphin Interchange
High level segmental flyovers built over multiple roads that carry 430,000 vehicles per day and are the tightest elevation curves erected in the United States
- Miami, USA
- Bridges & Viaducts
- Completed: 2015
Highlights
- Total number of segments 783;
- Total length of all 4 bridges 2,355 m (each 14 m wide);
- FICE Engineering Excellence Grand Award – 2016.
Description
Construction of superstructure for the State Road 826 (Palmetto Expressway)/State Road 836 (Dolphin Expressway) interchange reconstruction. The scope of works included design, pre-fabrication, launch, and erection of an elevated deck, consisting of four bridges and forming a five-level cloverleaf interchange. Reconstruction was necessary to enhance safety and reduce congestion on the highway intersection.
The bridge ramps were constructed via balanced cantilever method, for a total length of all four bridges sums up to 2,355 meters, each 14 m wide. The curved ramps on the third level have 180 m radii and reach a maximum height of 29 m. All bridges are supported by pile foundations and reinforced concrete piers. 19,000 m³ of concrete was employed, 1,924 t of reinforcing steel, and 950 t of posttensioning steel.
Companies involved
Our group
General contracting
Specialized contracting
Other activities
