Breaking down the tied-arch system, Cj Hirro explained that the Cabagan–Sta. Maria Bridge required precise, bottom-up construction. The arch and deck had to be tied together only after the foundation was firmly in place. Instead, Department of Public Works and Highways approved a segmental build, a move Hirro called reckless and technically unsound. She pointed out that this method left the bridge vulnerable to unstable loads, mis-tensioned hangers, and eventual failure. With ₱1.2B in public fun

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