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168 United Kingdom - Alderney      (Lat: 49.7272 Lon: -2.19933 - click for map)


Main breakwater data:  
Length (m) 1433   owner
Waterdepth (m) 0   contractor Thomas Jackson
Construction time (years) 17   consultant
Start date (year) 1847   Hydraulic Laboratory
Completion date (year) 1864   comments
Construction costs($106) 0  
Design criteria  
Hs (m) 7.6  
Tz/Tp (s) 0/0  
slope/crest info
front slope 1:1.7 4 ton Rock
rear slope 1:1.25 0
crestheight (m) 0  
crest/caisson width (m) 0  
wallheight (m) 0  
no picture available
click on picture for enlargement
no drawing available
 


Reference documents:
Takahashi, S. [2002] Design of vertical breakwaters, lecture note for the 28th ICCE, PARI, Japan HR Wallinford 10/79


This is a database prepared by HR Wallingford and TU Delft with the assistance of the international breakwater community and has been made freely available for the benefit of breakwater designers, contractors owners and developers worldwide. The database is subject to regular updating as information becomes available, however the development and maintenance of this database relies primarily on information supplied or published by third parties and no responsibility can be taken for the accuracy of data supplied.