i'm matt wiccens a project manager. spent spend my time on the army core of engineer study understanding seismic risk in the southern waterfront. i will jump into a bit of our understanding this we developed as outcome of this study. you will see here a colorful water front color indicates where it is today. the dashed line is what it was 150-200 years ago. line is the original shore line. where the 2 lines are closer together is where this water front started to take shape wrchl it is close together the former union iron works that was the turn of 19th century. building north out toward pearce 50 and 48. the construction similar to the embarcadero sea wall in the late 1900's big maritime developments started to take shape. pier's 80, 94, 96 and you will see there they are all following a similar construction type that green line is a sand dyke construction type and by categorizing the segments of shore line in this very general way we start to develop hazzards and vulnerabilities. with that a bit of the assessment find