ERNEST LYONS BRIDGE
The Ernest Lyons Bridge carries A1A over the Indian River Intracoastal Waterway in Stuart, Florida, providing 65’ of vertical clearance. The new bridge replaced three low-level bridges, one with a bascule span. The new precast segmental concrete box girder structure provides for two 12′ lanes of traffic. PCL Civil Constructors was awarded the design-build project in 2003 at a bid price of $46 million. The 4,661′ long precast segmental bridge consists of 152′ long spans. The box girder is 61′ wide and was erected span-by-span using a self-launching erection girder specifically designed for this project. Segments were delivered along the completed portion of the bridge and placed on the erection girder using a specially designed segment lifter located at the end of the spans.
Corven Engineering Role: Peer Review, Load Rating, Construction Support. Peer review of the segmental bridge design for PCL. LRFR load rating of the segmental bridge and support during construction for Parsons.