Beach preservation system

Abstract

Triple dewatering pipe recovery lines with dual pumping stations are installed underneath and along 1,000 feet of beach face on a predetermined centerline. The recovery lines are positioned at different depths with an overall length of approximately 1,400 linear feet each. This length will include a needed length to connect with the pumping stations located away from the beach. The triple lines will be spaced vertically over a height of approximately 6 feet and extend to a maximum depth of 8-12 feet and will be an 8-inch diameter HDPE well screen covered with a two ply filter fabric. The lines are also spaced laterally in a pattern of the adjacent receding coast line. Each progressively lower line will be approximately two feet closer to the ocean. The trench width will be approximately 18 inches and will be backfilled with the natural beach sands below ground surface.

1 . A beach stabilization and dewatering system comprising
 a plurality of elongated dewatering pipes buried in a shoreline area of a beach, said plurality of elongated dewatering pipes being vertically and horizontally offset from each other in a pattern following an inclination of the shoreline, and   opposed ends of the elongated dewatering pipes being connected to a pumping station for removal of water from the shoreline and transfer of water collected at the shoreline by the elongated dewatering pipes.   
     
     
         2 . The beach stabilization and dewatering system of  claim 1 , wherein there are two spaced pumping stations. 
     
     
         3 . The beach stabilization and dewatering system of  claim 2 , wherein a transfer line connects the opposed ends of the elongated dewatering pipes to a respective pumping station. 
     
     
         4 . The beach stabilization and dewatering system of  claim 1 , wherein the elongated dewatering pipes are progressively spaced at an equal separation distance in a vertically offset alignment. 
     
     
         5 . The beach stabilization and dewatering system of  claim 1 , wherein the elongated dewatering pipes are progressively spaced at an equal separation distance in a horizontally offset alignment. 
     
     
         6 . The beach stabilization and dewatering system of  claim 1 , wherein a water return line extends from the pumping stations and extends under the dewatering pipes into the body of water. 
     
     
         7 . The beach stabilization and dewatering system of  claim 1 , wherein a water return line extends from the pumping stations and extends inland. 
     
     
         8 . The beach stabilization and dewatering system of  claim 6 , wherein a valve controls a direction of water from the pumping stations. 
     
     
         9 . A method of beach preservation, said method comprising
 excavating a first trench and depositing a first dewatering pipe in the trench in a beach front location,   excavating a second trench and depositing a second dewatering pipe vertically above the first dewatering pipe and horizontally offset from the first dewatering pipe in an inland direction away from the first dewatering pipe,   connecting the first and the second dewatering pipes to two spaced pumping stations, and   excavating water from the first and the second dewatering pipes by the two pumping stations and transferring the evacuated water to one of the water adjacent to the beach front location and inland.   
     
     
         10 . The method of beach preservation of  claim 9 , wherein a third trench is excavated and a third dewatering pipe is deposited vertically above the second dewatering pipe and horizontally offset from the second dewatering pipe in the inland direction away from the second dewatering pipe. 
     
     
         11 . The method beach stabilization and dewatering system of  claim 9 , wherein the pumping stations include a valve for selecting the one of transferring the evacuated water to the beach front location or inland. 
     
     
         12 . The method of beach preservation of  claim 9 , wherein opposed ends of the first and the second dewatering pipes are connected to the pumping stations by vertically rising transfer lines. 
     
     
         13 . The method of beach preservation of  claim 9 , wherein when the evacuated water is transferred from the pumping stations to the water adjacent to the beach front, a transfer line extends at least 100 feet offshore. 
     
     
         14 . The method of beach preservation of  claim 10 , wherein the first, the second and the third dewatering pipes extend parallel to each other and parallel to a shoreline of the beach front location.