USCIS permits you to apply for OPT after enrolling and completing a minimum of one full year of studies as a full-time student or 3 months before completion of course.
Coastal management is defense against flooding and erosion, and techniques that allow erosion to claim land.liff stabilization can be accomplished through drainage of excess rainwater of through terracing, planting, and wiring to hold cliffs in place. Cliff drainage is used to hold a cliff together using plants, fences and terracing, this is used to help prevent landslides and other localized damage.
1 Hold the line - Where existing coastal defences are maintained but no new defences are set up.  Advance the line - New defences are built further out in the sea in an attempt to reduce the stress on current defences and possibly extend the coastline slightly.