D.-s-No. 4c.

EURTHER PAPERS RELATING TO

4

I beg to enclose the estimates referred to above, and one drawing. I need hardly mention that the discharge of the channel will be the same as before fixed upon forty heads. I have, &c, John Carruthers, Esq., Engineer-in-Chief. H. P. Higginson.

Estimate No. 1. Excavation and forming, 31,000 cubic yards at Is. per yard ... ... £1,550 Tunnelling, with timber, &c, 5 chains, at £70 per chain ... ... 350 Wood boxing and supports, 669 chains, at £33 per chain ... ... 22,077 Trestle work to 5 feet high 102 chains, at £3 per chain ... ... 306 „ ~ ~ 10 „ „ 134 chains, at £10 per chain ... ... 1,340 „ „ „20 ~ „ 82 chains, at £25 per chain ... ... 2,050 „ „ „30 „ „ 26 chains, at £40 per chain ... ... 1,040 „ „ „40 „ „ 7 chains, at £60 per chain ... ... 420 „ „ „50 „ „ 2 chains, at £80 per chain ... ... 160 Forming footpath ... ... ... ... ... ... 669 Clearing bush ... ... ... ... ... ... ... 67 Branch flumes, as feeders ... ... ... ... ... 800 Dam and Head works ... ... ... ... ... ... 2,000 £32,829 Contingencies, at 12£ per cent. ... ... ... ... 4,103 £36,932

Estimate No. 2. Excavation and forming 31,000 cubic yards, at Is. per yard ... ... £1,550 Tunnelling, timber, &c, 5 chains, at £70per chain ... ... ... 350 i sheet-iron channel, 669 chains, at £42 per chain ... ... ... 28,098 Wooden supports for above, 316 chains, at £5 per chain ... ... 1,580 Trestle work and supports to 5 feet high, 102 chains, at £8 per chain ... 816 „ ~ „ „ „10 „ „ 134 chains, at £15 per chain... 2,010 „ „ „ „ „20 „ „ 82 chains, at £20 per chain ... 1,640 „ „ „ „ „30 ~ ~ 26 chains, at £30 per chain ... 780 „ „ „ „ „40 „ ~ 7 chains, at £40 per chain ... 280 „ „ „ ~ „50 „ „ 2 chains, at £45 per chain ... 90 Painting, 2 coats, 669 chains, at £1 15s. ... ... ... ... 1,170 Forming footpaths ... ... ... ... ... ... 669 Clearing bush ... ... ... ... ... ... ... 67 Branch flumes, as feeders ... ... ... ... ... 800 Dam and Head works ... ... ... ... ... ... 2,000 £41,900 Contingencies, at 12| per cent. ... ... ... .... 5,238 £47,138

Estimate No. 3. Excavation and forming 31,000 cubic yards, at Is. per yard ... ... £1,550 Tunnelling with timber, &c, 5 chains, at £70 per chain ... ... 350 tV inch, or No. 1G galvanized iron trough, 669 chains, at £37 per chain ... 24,753 Wooden supports for above, 669 chains, at £5 per chain ... ... 3,345 Trestle work to 5 feet high, 102 chains, at £3 per chain ... ... 306 ~ „ „10 „ „ 134 chains, at £10 per chain ... ... 1,340 „ „ ~ 20 „ „ 82 chains, at £25 per chain ... ... 2,050 „ „ „30 „ „ 26 chains, at £40 per chain ... ... 1,040 „ „ „40 „ „ 7 chains, at £60 per chain ... ... 420 „ ~ „50 „ „ 2 chains, at £80 per chain ... ... 160 Forming footpath ... ... ... ... ... ... 669 Clearing bush ... ... ... ... ... ... ... 67 Branch flumes ... ... ... ... ... ... ... 800 Dam and Head works ... ... ... ... ... ... 2,000 £38,850 * Contingencies, at 121 per cent. ... ... ... ... 4,856 £43,706