ANALYSES OF HYDRODYNAMIC AND TYPHOON WAVE LOADINGS FOR THE SUBSTRUCTURE SCOUR PROTECTION DESIGN OF PANGUIL BAY BRIDGE PROJECT

Panguil Bay Bridge is a national coastal bridge infrastructure project of the Department of Public Works and Highways (DPWH), Philippines national roads and infrastructure agency, that will connect via road transport the towns of Tubod, Lanao del Norte and Tangub, Misamis Occidental. The bridge project consists of 320m length of the main bridge, 1,920m of approach bridge, 861m of approach road section, yielding a total length of 3,101m which surpasses the previously longest 2.1-km- long San Juanico Bridge. The bridge superstructure is supported by 32 piers consisting of 2 main pylon piers for navigation passage, 2 supporting piers, and 28 single piers distributed on both sides of the Panguil Bay Channel. The objective of this paper is to present a methodology and the results of its application to the determination of the hydrodynamic and storm wave loadings required in the design of the marine scour protection of this coastal bridge’s substructure.