DREDGING OPERATIONS.

Poverty Bay Herald, Volume XLIV, Issue 14442, 31 October 1917, Page 2

DREDGING OPERATIONS.

I-rr-r- " •».' .;.]. —.;;.. TO BEI Bl&tJMflb'to Arrangeriients m coainection with the ; new' system of pumping to be eihployed by the Harbor Board authorities m tha effort.' to relieve the 'prefcTentr silted-ttp " wnditionf were being' completed to-day, and it is prbposod to *_oa_fe **: «tas*t to*. mbirowv riiorninSg;. ' T_ue system, briefly, is . toptomp the silt over the bj^eakwater, arid jn: this respect it is ah .nhovamttr on the pumping- operation^ iri£tiaft_d by ' » ty* 5 ha^i* frigineer. Sir J. -A^ 'Mc-Y UOhald,. wneareby: the silt' A^sYnutpped oyer the dcedgerY** side to boi^aio§_d out by- the ebb tide. It is noWipitoposed to' ptimp vth© edit' ; up by -the^toilhrsu&io& trailers .extending towards*, th^ stera. of tlio yesseli the silt paasih£ through the pumps amidships,: and being carried for*- . ward by a special line, of pipinfr dv^t-httY dredger's bow, and tihus doUVei*€aWsv^ v the breakwater. .By adopting a system of moorings, aimilar to .that employed when bucket dredging, the veM Vst&n may be swung i^und m th© channel, with the bovv- acting as ; a, pivot. By this means the .width of vohdnnel may be obtained!: P^ojectiugioveirthe bew will beua. 60ft length. 6£-_»,incn deliver piping. This will be supported byapowerful garftijy, tfi^t li^ .beeii erected! on fhe port; bow, arid wii. not in any wavbe a fixture to the bneakwater. Operations , wjll he '<Jon_rtienced at tho end of the breakwater jTMa section, i«. -w^vb^rckjailea; jV* *^nstri_c*|d of blocks erected* m pjron-M. styltf, rfcnd, thus.. piifeV_n*_ worked .close, alongside. A spelffi! "cr^dl^" 'te;therefore' been 1 to act" as* a !&htfer -for pK^tic6;Tiiiitf/Sn which the dfcM&tfs how will pivbt round. A punt has been utilised for the' ''cradle," a'la^g*e:;T_tm6tnre of Ttimberrlpga being) erected on tho deck .to tako the* etraan. By pumping over" the bow, Tand tfoua using' th* 'dredge as p&rt bMhe conveyor, \ a considerable amount is added to the Wtkldfith^^ from;* the bottom end of the suction pipes to the. po^t of discharge/will ba. I 220; feetT* , A^gobd^deai of *wjjr* '■&&, tt being) employed, including', additional -, Mting tac-db*oii theYafte^rid of the ship- ' -.' .'..';o>; X'.Xi'XYX.xpf^ ■ j.-; Discusaiiijr operations with a Herald representativo to-day, Captain Ca^s#^ te|bormasteiv. stfrtt'd; , thtat; ;4lte ftrimfr: thing* had. been : designed' 'to^^uit'.^especial comlitious that, ihad/ arisen. ,^Ehe; way he looked -it it-was *fclife: ; Tfie pumping on.' the! febl»&tideT foil.ith^tflifet -six months had rented) iii;^od 'workY* but .with the succession, of floods and ftu*ther ' extensive si-ting the' Maui liad wok been ■ ableT'toi copfeT: . w^v>'.tli^.|»6si^i<»fSii, .^'j^il^lidbr' ; considered; it,< advisable* : ( ©lse. The scheme for punripi^ oVi& tho .breakwater was V'tb Wine extent a big experiment, and if it proved' suqc^ssful it would pc of immense va_ii- -t^HhSv port.^ .If ifcw*& 'ho^, *tli^Yth<# wo^ld Ihave to set ?,to>. aqd^adopt other means. . However, ,*tie was 1 confident of ■.results.' If, Tthe "sch&me ' .p^Ved T the* success anticipated, he thought- it would W. , th t .BM^d^to diApq^^^Maui, •which, although /&x spleifdifl, h ' "bucke* dredger, was . not, built for.' this, particula-»' r class of work.- Th'd : Matit whs simply beiiijr'.used to *est' the .^Hhtipje,; «mfis-'- --■| he '• }??$}' * "RolMYwas to -he ni^n-ta-hedi .'he tlipught' the Board miglit theii go in* for a more, sif-fiabl^ *?toolv oould be " :opw*'ated , iat muqh.Tless-vCO.9t,. St^rthwu ;«^:*they ;' wbtdd^httv^to 'dado^i 5 entrance, the dJ^edjije'r; woiad bo workipg P i a very epc,poj^ rt positiouj t arid about. half -way. down Mia..'b^i?*wate^• ektonribn there -wa| a,. b*»ik> with only^fc*Tto sft of -water on xiV. It wM possible' that: un^ there was sufficient -flotation '■•'the'' dredger j r would: have to *^H RWPirig^Q^ *tfe^w: . ti de * bvtt as conditions -^•('toitted- H^wSd- ' / propo^edv to; put theTMlui^intbi it an»* kesp4 her gding: for, .ttreSte hourp idft> en^L^ Ca^tain^ r.Carsoti added? thatYlw iritendwi) taking*, the r Ma*ui 'down, to tho; oni*ani»f : onYhi^-wate. 1 at 4- avm.v^o~mbnow^to*v; ■■- coTOmene^ operations. *■.'•.(,. - ; -,.;.■ V]Y ] - XYX.