Abstract
It is the intention of this paper to give a description of the soon to be completed Sand Transfer Facility at the north jetty of the Lake Worth Inlet in Palm Beach, Florida
Highlights
A technical report of this nature would not be complete if it did not bring out, briefly, the underlying causes which led to the design and eventual construction of the subject installation
Contour studies made prior to 1925 indicate minor shore recession, the major problem arose with the construction of the rock Jetties which protect the Lake Worth Inlet and navigation channel
Array, has estimated the natural southward movement of sand at Palm Beach to be between 150,000 and 225,000 cubic yards of sand per year and has expressed the opinion that the impounding capacity of the north jetty has nearly been reached. They further estimate that the rate of accretion at the inlet, including material removed in maintaining the channel, amounted to 230,000 cubic yards annually from 192° to 1955
Summary
A technical report of this nature would not be complete if it did not bring out, briefly, the underlying causes which led to the design and eventual construction of the subject installation. The beach bordering on the east coast of Palm Beach Island is composed essentially of fine sand and shell fragments which are moved by the action of littoral currents and direct attack of the shoreline by severe waves. Contour studies made prior to 1925 indicate minor shore recession, the major problem arose with the construction of the rock Jetties which protect the Lake Worth Inlet and navigation channel. The predominant southward littoral drift was intercepted by the north jetty and impounded causing an interruption in the supply of sand to the south. The very striking and visible result has been starvation of the beaches along Palm Beach Island and accretion to the north where the beach lies approximately lltOO feet seaward of the beach line south of the inlet
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