and, in addition, bottom stereophotography will provide more and better 

 information about the surficial bottom material type and condition. In 

 any case, when working with a unit to be lowered onto the seafloor, 

 whether it have a tined foundation, crushable element foundation, or 

 clump anchor with a universal joint to the structure, it is good 

 practice to attach an attitude sensor/pinger to the foundation to give 

 immediate information of unacceptable attitude. When warning is given, 

 the unit can be picked up and re- implanted. 



CONCLUSIONS 



1. Bottom resting foundations are potentially suitable selections for 

 seafloor sites having average slopes up to ten degrees and having 

 microrelief magnitudes up to three feet. Tined or crushable element 

 systems should serve well here. Accommodation of slope and microrelief 

 combinations resulting in greater total foundation tilt will require 

 using embedment or special deadweight anchors for stability. 



2. In those situations where all of the foundation types discussed are 

 permissible, weight should be given to the simple three-tined system 

 with collars. 



3. Foundations to be emplaced in an area of rock seafloor should be 

 equipped with attitude sensor/pinger equipment, and the deployment 

 technique should allow the unit to be picked up and moved to a new 

 location. 



4. The steeply sloping area off living and relict coral reefs is a 

 "high risk zone" for seafloor structures. Only deadweight/clump 

 foundation/anchors should be considered. 



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