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Proposed expressways include the Calamba–Los Baños Expressway, which spurs from SLEX, traverses along Laguna de Bay and ends on a national highway at Bay, and Laguna Lakeshore Expressway Dike, an expressway and dike that will run on the coast of Laguna de Bay. The projects will cost an estimated ₱5.9 billion ($131.11 million) and ₱18.59 billion ($413 million).