THE RECLAMATION SCHEME

Bay of Plenty Times, Volume LXXIV, Issue 14048, 1 May 1946, Page 2

THE RECLAMATION SCHEME

ENGINEER’S REPORT^

Amended PfeiT To Cost £30,550

Discussion At Hark,, Board Meeting "

The view ll„.t ft „„ board ceased, to have cold ft ■* progressed was expressed t, Si chairman (Mr P. g. DensenvV appealing for unanimity i n *** tion with the proposed i. ed C ° Cte! - scheme, at. the monthly J!f !; the Tauranga Harbour Bdard 51 The chairman stated that posals for reclamation had going on now for about two T and this practice of forever a? it off was not conducive to Pro ' It was time, he contended, board played its part i n j hf ' k hour and progressed with the r/ the country. ( He appealed ft board to go forward to the raw ers with a unanimous idea ft r clam a tion proposals. '

Reporting to the board on -th e p r posed reclamation at Sulphur fT the engineer (Mr A. Murray) J that due to the fact that the J was unsuccessful i n purchasing grab dredge Taniwha, the position was as follows:

• “Inquiries made recently havefo dicated that there is a much Q .„ willing market now for machfe and materials from which it be possible to manufacture, ecoaofc cally, a small suction dredge ia| country. Whereas nine .Months a |o it was well nigh impossll)ie to ob(jj E replies to enquiries for plant, u, situation to-day is much easier Mi there has been a considerable dtp

iii prices-.”

With this in view, stated (he % glneer, he had designed a dredge{3 the purpose of thd board’s reclaim, tion proposal which Wottld permitd the work being carried out at i lower cost than previously arrived with “dry-filling” methods, Thisds cision walk'influenced by the di that, for some time yet, it would{ impossible for the board to obtai the plant desired to carry out dr; filling operations with the greatest economy.

Description of Dredge

Dredge: 'Briefly specified ft dredge, now designed and priced consisted of an all-welded 4eel poi toon to be built locally 76 feet lout by 22 feet wide by 4 feet 6 inche depth. On this was mounted 1 electrically operated eight-inch sat pump having a 10-inch suction pip and an eight-inch delivery pipe eis to be in spiral, stesl,,, ,A,; pilttethpi 1 , driven by a separate electric mote and mounted on a rigid strucluft steel arm, was provided to dig to depth of 24 feet below deck W An “A” frame to permit of the rais ing and lowering of this cutter hci and suction pipe was fixed on tli bow of the pontoon.

At the stern and by means of “A” frames would be mounted h spuds (or legs) to keep the w against the dredging face and tod able ’it to he slowly walked as digging took place. They cod be fitted pile-driving equipment > any stage when the vessel quired for this purpose.

For manoeuvring and to’ ® operation of the suction pipe, gear and spuds, an electrically oft ated winch with five separated® would he fitted. This would one operator to control file opera', of the dredge from a pilot housef structed as an adjunct W the | and flbrolite main house (Stivesff operating machinery. Tills was to be 49 feet by 9 feet h. v “ stud height provided with aiL window and door spaces. Priming and fresh water P# fresh water tanks, electrical suitable for night operation, ropes and hawserd, painting ae livery to Tauranga and the nee® 1 length of discharge piping® ll ports had been allowed for. The working draft of the)* he added, was computed at * inches. The Cost Cost: Except for three qu» iall J for smaller items of eQuipi" yet to hand which had been J for on a conservative basis, 16 secured prices for consti act on manufacture of the plant. Including an item of P er to cover contingencies this to 3 amounted to £13,100. jj The engineer stated t*■ j agreed almost identically cost quoted in his previous covering the purchase and con'y| of the Taniwha for tie ■purpose. Unfortunately it the board with a vessel suata for suction dredge work sible utilisation for any P work in the harbour. M ] self-propelled but later® 11 ' can equipment, eminently 81 .'j this purpose, could be ol .j could he made self-P r °P e , addition of an outboard P |) Cost of Reclamation: j(fj estimated cost above i) now possible for him to ® j board on the amended cos

whole scheme. j or .i» Capital Costs: Allowing . completion of the work > n of two years, which wou , sible only by working shifts for 5 days per ' vee '* tal costs would be: - ea cb f Interest, 41 per rent 0 )i two years, £1180; ep,^ 0 per cent for each of £3930; total, £sllO. , For a total output of pit yards (4.07c1. per e« b,c y U .... cent tor (COATIXniI) ON