, ▁DE ME ▁subs idi ary ▁T ide way ▁Off sh ore ▁Cont ract ors ▁was ▁involved ▁in ▁precision ▁rock ▁pla cement ▁for ▁protection ▁of ▁the ▁wave ▁hub ▁and ▁a ▁ 1 6   km ▁power ▁cable , ▁linking ▁the ▁tid al ▁energy ▁park ▁with ▁land . ▁T ide way ' s ▁fall ▁pipe ▁vessel ▁Rol ling stone ▁placed ▁some ▁ 1 0 0 . 0 0 0 ▁tons ▁at ▁a ▁depth ▁between ▁ 2 5 m ▁and ▁ 3 5 m ▁by ▁way ▁of ▁digital ▁terrain ▁mod elling ▁and ▁a ▁rem ot ely ▁operated ▁vehicle ▁( RO V ). ▁ ▁In vest ment ▁programme ▁Between ▁ 2 0 0 2 ▁and ▁ 2 0 0 7 , ▁ten ▁major ▁d red gers ▁were ▁added ▁to ▁the ▁DE ME ▁fleet . ▁This ▁included ▁the ▁world ' s ▁largest ▁heavy - d ut y ▁se ago ing ▁cut ter ▁su ction ▁d red ger , ▁the ▁ 2 8 , 0 0 0   k W ▁d ' Ar tag nan . ▁With ▁the ▁construction ▁of ▁the ▁Pear l ▁River ▁in ▁ 1 9 9 4 , ▁DE ME ▁became ▁a ▁tr end set ter ▁for ▁what ▁is ▁now ▁" cons ider ed ▁as ▁the ▁first ▁' j um bo ' ▁tra iler ▁su ction ▁d red ger " ▁On ▁August ▁ 1 , ▁ 2 0 0 2 , ▁the ▁en larg ement ▁of ▁Pear l ▁River ▁was ▁started ▁in ▁Singapore . ▁In ▁the ▁process ▁the ▁ho pper ▁capacity ▁of ▁Pear l ▁River