Dock 



Place for loading and unloading of vessels/for small boats; see pier. 



Dolos , dolosses (plural) 



A type of precast concrete arrror unit used for facing rubble mound 

 structures. 



Dolphin 



Cluster of piles; see piling , also Figure 43. 



Dredge 



To deepen by removing substrate material; also, mechanical or hydraulic 

 equipment used for excavation. 



Ebb tide 



Period between high water and the succeeding low water; falling tide. 



EIA 



Environmental impact assessment (or analysis); the analysis of the poten- 

 tial impact of a proposed development project upon its immediate and more 

 distant environment. 



EIS 



Environmental impact statement; the actual presentation that results 

 from the eia. 



Embankment 



Artificial bank such as a mound or dike, generally built to hold back 

 water or to carry a roadway. 



Embayment 



Indentation in shoreline forming open bay. 



Endemi c 



Peculiar to particular region or locality; native. 



Erosion 



Wearing away of land by natural forces; e.g., by wave action, tidal cur- 

 rents, littoral currents, deflation. 



Estuary 



Region near river mouth where fresh river water mixes with salt water of 

 sea. 



Fetch 



The distance over unobstructed open water on which waves are generated by 

 a wind having a constant direction and speed. 



Filter 



Transitional layer of gravel, small stone, or fabric between fine material 

 of an embankment and revetment armor. 



147 



