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.
Use of seawalls in conjunction with beach nourishment can also address some of the negative impacts of seawall construction, such as beach lowering and downdrift erosion. References top: Burgess, K. and Townend, I. (2004) The impact of climate change upon coastal defence structures. 39th DEFRA Flood and Coastal Management Conference, University of York, UK, 29 June-1 July, 2004.