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TRB Publications IndexResearch in ProgressTRID
Facilities (P) Use For: Complexes; Installations Transportation, hydraulic and utility facilities (Pm) Hydraulic structures (Pmh) Offshore structures (Pmhy) Use For: Deep water structures Underwater structures (Pmhyu) Underwater foundations (Pmhyuf) Underwater pipelines (Pmhyup) Use For: Offshore pipelines; Submarine pipelines Underwater tunnels (Pmhyut) Use For: Subaqueous tunnels