. ▁Fab ric ▁Ram ps ▁usually ▁ce ase ▁to ▁be ▁useful ▁after ▁one ▁tid al ▁cycle ▁as ▁they ▁are ▁easily ▁was hed ▁away , ▁or ▁buried ▁in ▁sed iment . ▁ ▁F oli age ▁r amp ▁A ▁fol i age ▁r amp ▁is ▁formed ▁by ▁plant ing ▁res il ient ▁species ▁of ▁hard y ▁plants ▁such ▁as ▁grass es ▁over ▁a ▁well - formed ▁sed iment ▁r amp . ▁ ▁The ▁plants ▁may ▁be ▁supported ▁while ▁they ▁become ▁established ▁by ▁pla cement ▁of ▁layers ▁of ▁mesh , ▁net ting , ▁or ▁co arse ▁organ ic ▁material ▁such ▁as ▁v ines ▁or ▁branches . ▁ ▁This ▁type ▁of ▁r amp ▁is ▁ide ally ▁su ited ▁for ▁inter mitt ent ▁use ▁by ▁vehicles ▁with ▁a ▁low ▁wheel ▁loading ▁such ▁as ▁d une ▁bug g ies ▁or ▁agricult ural ▁vehicles ▁with ▁large ▁ty res . ▁ ▁A ▁fol i age ▁r amp ▁should ▁require ▁minimal ▁maintenance ▁if ▁initially ▁formed ▁to ▁follow ▁the ▁beach ▁profile , ▁and ▁not ▁over used . ▁ ▁Gra vel ▁r amp ▁A ▁gra vel ▁r amp ▁is ▁formed ▁by ▁exc av ating ▁the ▁underlying ▁loose ▁sed iment ▁and ▁filling ▁the ▁exc av ation ▁with ▁layers ▁of ▁gra vel ▁of ▁graduated ▁sizes ▁as ▁defined ▁by ▁John ▁L oud on ▁Mc Ad am . ▁ ▁The ▁gra vel ▁is ▁compact ed ▁to ▁form ▁a ▁solid ▁surface ▁according ▁to ▁the ▁needs ▁of ▁the ▁traffic . ▁ ▁Gra vel ▁ram ps ▁are ▁less ▁expensive ▁to ▁construct ▁than ▁concrete ▁ram ps ▁and ▁are ▁able ▁to ▁carry ▁heavy