LAKE COLERIDGE POWER

Press, Volume LX, Issue 17986, 1 February 1924, Page 9

LAKE COLERIDGE POWER

HAB PER DIVERSION

ylglT OF INSPECTION

0 visit cd the Tlrfa P- c - 3 rWf(r av at tne md '- Mr R.'o. MacC-ibbon : - resi;iC* f ric v cnpinccr, found that i* <* eir '^ ol Jc of water equal .« f«e« («bic f-t see•wst sb , into Lake Coleridge. -- ■ri) ' um " h nf ....tc sometimes run , flttn e usic3 o£ v,.u^ I 3k c, and the average u, source is about ** f t;vL abundantly clear |S * ;j absolutely no danger ot * there a "... " ~r- SUPpIV filing. were met near the Juke \7 a £ Harie, engiueer-iu-ehar;:^ tfo*cd them' all they, had come to the time of the inspection, f-t* three-quarters of the <•/- y "d the Harper was be»»»« carr.ul C " t v ß lake along the sp.oeiaily eonv! rce, the length of wh.cn is and a mile, audit, which was tested by mean-, o„ a wood thrown in the stream. Cfcimd to be equal to about' hr,ecu per second- The vau-. 4 *«» " Jrtjn it three of the '* six inches at the fourth, but, 4> '- I in the uci-unmlatioa or fA the shingle which bad accumuXrfUle the gates bad been e.eared by the scouring or the s.re.im S %; assistance of two men, who "L tfco heavier stones out I>e was brought about by .be "traction of a temporary dam of 3SJ rn.de Close to the intake on Isfrfsy las'fluctuations in Intake.

It *as atated that at tho in the Harper on Jamiaij .1 «!iin quantity of shingle found it.? ftothe water-race, as a result 01 tho volume ot water ivus vonSw'ablv reduced, and it was admitted St had tho gates been closed sooner t« thov were the accumulation would *. TC been obviated. fciueli n course £lbs adopted in tlia event of future ijjik. As for the statement, howr,a that there was any fear rce.cntly rfthe lake falling t° a dangerously low Jr>l an crajihatie denial is given. Tic maximum level of the lake, tiieh will in future be the normal * e i is some 1700 feet, and when it mi''be von il this tho water overflows the Wilbcrforce. Tho present i'fth is 1668.1 feet, and it is being iiidily increased. At the beginning 11 Augast last year tho level was ]i&2 feet, and, as there was then no jttuion to add to the supply, tho pits were closed, and the Hamper's nlcrs dispensed with until JJiuu.iry !rJ, *hen fhey wero'again turned in, tht lave! at this time having been re-CK!-1 to 1267.8 feet.

Tie position with regard to the volMt of water required to .meet present ib:*!s for hydro-electric power will be the more ensy to understand when it :j ttatcd that tho natural feeder to lie lake supply some 150 cusecs,-and 90(sm«s arc required to lcocn the turbir.fi going; so that only about 50 ttstcjMed bo drawn from the Harper, ii tit present moment about 450 tcsiu moto than are required are run- " niiijinto the lake fromithe Harper, in (Wjquentc of which tlie lake level is fiMg'S'tMilll}'. When Cr. A. McKelj hf, fhlitmaa of the Electricity Com- ' isiSi! of the City Council, visited ti:o iainit (6a .Sauday last), it is estiMISoV ths officials .of tho Public toiU'Wpirimeiit that some 350 ; ft¥.y jtot flowing into tlio lake, tho i tajS (Will can drop to between I M feet before it can be [ wiEdeted'm;dangoroualy low for tho jiMJtauiitinm electrical capacity of

flit Recant Flood. &fod of, January 13th is regarded u iMiijkst aeen in tho Harper for W-Wsileh occasion, as is the case ™ b«| Canterbury, rivers in simiaKaSittanccs, huge quantities of "Xgkmn brought down by ' tho iwily-Joftiiig stream. On that date mm? into tho lake was estimated but, owing to tho action «fflihiagk it had fallen the followmi ft'? ? ci!BQC3. It dropped tho I flay ts 100, then 50, and for three , ,t*v M low as 25 ensecs. Thon. «(Jungle was cleared by tho meana " f «red to, the volume of < « steadily increased.' So that as trouble M possible will bo caused *LI ki« m , u ' ure two horse-scoops •Umsow always availablo. 'kick iA»f»^ aent div ersion works, a ?° the temi;j Jij, ,> m situated about a mile wl ?? th ° ifltake ' and ' cause Sit .I a , Bwee P to the north- ' btuff Lv i. river-bed, besido Nml f Co s menceß a few hunscl . th ® K at ea- The works fv s J!l »H and are not, likely to ii? 11 . tho highest floods. $hJ »!.• ? n - ln tho centro of tho A usiai.'f 'f natura 4? a very wide prn»° E ' B tream to, its 4»s <rUt ,L planting of wil"i efa „ ®, '° in this respect. S> tlis in th o race carryinTin diversion into ' Bt » so i consequence the curmK U at h CB that it is • Way ,% ri K hi > bankif lh« cow-, °hviated, however, oi , a Srojnc o} together by wire-netting.

[ !a °f I ? *aich ° f t J ie P owcr -houso, 'IS «<m that a t S K BeqU! i ntly paid ' S built f Q r\t Umb " 0f huts aro Q «a whn Lii I accommodati °a Of f of tvi em ployed in tho t J «aiuiou with S^° n K tu .? ne, » work i iltodst 1„ , h . lch WIU b ° comf ate)y - The I'uts ! fr* t.hosa r d „ and comf °rtablo I Vtaent ti>» y pnt U P th « I to >Ughtlv i/>» lleW * unael > which I l Ui > m hii?5 E f . than now ! and J. P h nt dowa =loso to tho ;• 1 ««« co ? nected with it f?» leading t^t hn 111510211 four ly chamber froin ? V P'Pt-Uaes tL Wlll be 01ll y in ut Passat We&, 2T?L o£ 1500 ku °- £>« » wpacitv f 3000 kUowatts, 12 ' 000 > but the' tjW e?er i"ttiiDg 11 expected •'it station £■ o w a , bout 24 >°00 kuo*B^